(start_job_command): Remember to call notice_finsihed_file under -n when

not recursing. To do this, consolidate that code under the empty command case and goto there for the -n case.
real-clean renamed to maintainer-clean.
2026-08-20 00:43:29 +08:00 · 1995-02-10 23:44:03 +00:00 · 1995-02-07 23:45:48 +00:00 · 1995-02-07 18:36:00 +00:00 · 1995-02-06 22:58:07 +00:00 · 1995-02-06 22:37:36 +00:00
30 changed files with 1878 additions and 810 deletions
--- a/17
+++ b/17
@@ -45,6 +45,8 @@ include compatMakefile
 MAKE = $(MAKE_COMMAND) $(MAKEOVERRIDES)

 # Remove autoconf magic.
+prefix = /usr/local
+exec_prefix = $(prefix)
 extras := $(filter-out getloadavg.o @%@,$(extras)) getloadavg.o
 LOADLIBES := $(filter-out @%@,$(LOADLIBES))
 ALLOCA := $(filter-out @%@,$(ALLOCA))
@@ -86,7 +88,7 @@ GLOB =

 else

-CPPFLAGS := $(CPPFLAGS) -Iglob
+CPPFLAGS := $(filter-out @%@,$(CPPFLAGS)) -Iglob

 endif	 # works-for-make
 endif	 # $(libc_dir)
@@ -96,9 +98,7 @@ endif	 # !no_libc
 $(ARCH)/%.o: %.c
 	$(COMPILE.c) -Iglob $< $(OUTPUT_OPTION)
 $(ARCH)/glob/libglob.a: FORCE
-	$(MAKE) -C $(@D) $(@F) \
-		CC='$(CC)' CFLAGS='$(CFLAGS) -I..' \
-		CPPFLAGS='$(CPPFLAGS) -DHAVE_CONFIG_H'
+	$(MAKE) -C $(@D) $(@F)
 FORCE:
 objs := $(addprefix $(ARCH)/,$(objs))
 prog := $(ARCH)/make
@@ -147,7 +147,7 @@ $(prog): $(objs) $(globdep) #$(addprefix $(ARCH)/,gmalloc.o mcheck.o)
 	$(CC) $(LDFLAGS) $^ $(globlib) $(LOADLIBES) -o $@.new
 	mv -f $@.new $@

-globfiles = $(addprefix glob/,COPYING.LIB Makefile.in \
+globfiles = $(addprefix glob/,COPYING.LIB configure.in configure Makefile.in \
 			glob.c fnmatch.c glob.h fnmatch.h)
 $(globfiles): stamp-glob ;
 stamp-glob: /home/gd/gnu/libc/posix/glob.tar
@@ -197,6 +197,7 @@ build.sh.in: build.template compatMakefile
 	       $(patsubst $(archpfx)%,%,$(objs)))\
 	       $(patsubst %.c,%.o,$(filter %.c,$(globfiles)))@' \
 	    $< > $@.new
+	chmod a+x $@.new
 	mv -f $@.new $@

 # Make the distribution tar files.
@@ -218,8 +219,8 @@ dist-flavor = alpha
 endif
 .PHONY: rcs-mark rcs-mark-alpha rcs-mark-beta
 rcs-mark: rcs-mark-$(dist-flavor)
-rcs-mark-alpha:;rcs -sAlpha -Nmake-$(version-): RCS/[!=]*,v
-rcs-mark-beta:;rcs -sBeta -Nmake-$(version-): RCS/[!=]*,v
+rcs-mark-alpha: RCS/[!=]*,v;rcs -sAlpha -Nmake-$(version-): $^
+rcs-mark-beta: RCS/[!=]*,v;rcs -sBeta -Nmake-$(version-): $^
 version- = $(subst .,-,$(version))

 dist: local-inst
@@ -262,7 +263,7 @@ make-$(version).tar: README INSTALL COPYING ChangeLog NEWS \
 	  acconfig.h $(srcs) remote-*.c $(globfiles) \
 	  make.texinfo make-stds.texi \
 	  make.?? make.??s make.toc make.aux make.man texinfo.tex TAGS tags \
-	  install.sh \
+	  install-sh \
 	  make.info make.info*
 	$(make-tar)

--- a/acconfig.h
+++ b/acconfig.h
@@ -3,3 +3,15 @@

 /* Define this if the SCCS `get' command understands the `-G<file>' option.  */
 #undef SCCS_GET_MINUS_G
+
+/* Define this if the C library defines the variable `sys_siglist'.  */
+#undef HAVE_SYS_SIGLIST
+
+/* Define this if the C library defines the variable `_sys_siglist'.  */
+#undef HAVE__SYS_SIGLIST
+
+/* Define this if you have the `union wait' type in <sys/wait.h>.  */
+#undef HAVE_UNION_WAIT
+
+/* Define this if the POSIX.1 call `sysconf (_SC_OPEN_MAX)' works properly.  */
+#undef HAVE_SYSCONF_OPEN_MAX
--- a/alloca.c
+++ b/alloca.c
@@ -22,11 +22,11 @@
   your main control loop, etc. to force garbage collection.  */

 #ifdef HAVE_CONFIG_H
-#if defined (emacs) || defined (CONFIG_BROKETS)
 #include <config.h>
-#else
-#include "config.h"
 #endif
+
+#ifdef emacs
+#include "blockinput.h"
 #endif

 /* If compiling with GCC 2, this file's not needed.  */
@@ -176,6 +176,10 @@ alloca (size)
  {
    register header *hp;	/* Traverses linked list.  */

+#ifdef emacs
+    BLOCK_INPUT;
+#endif
+
    for (hp = last_alloca_header; hp != NULL;)
      if ((STACK_DIR > 0 && hp->h.deep > depth)
 	  || (STACK_DIR < 0 && hp->h.deep < depth))
@@ -190,6 +194,10 @@ alloca (size)
 	break;			/* Rest are not deeper.  */

    last_alloca_header = hp;	/* -> last valid storage.  */
+
+#ifdef emacs
+    UNBLOCK_INPUT;
+#endif
  }

  if (size == 0)
--- a/arscan.c
+++ b/arscan.c
@@ -429,11 +429,11 @@ ar_name_equal (name, mem, truncated)
      struct ar_hdr hdr;
      return !strncmp (name, mem,
 		       sizeof (hdr.ar_name) - 
-#ifndef __hpux
+#if !defined (__hpux) && !defined (cray)
 		       1
 #else
 		       2
-#endif /* __hpux */
+#endif /* !__hpux && !cray */
 		       );
 #endif
    }
@@ -495,7 +495,11 @@ ar_member_touch (arname, memname)
  if (AR_HDR_SIZE != write (fd, (char *) &ar_hdr, AR_HDR_SIZE))
    goto lose;
  /* The file's mtime is the time we we want.  */
+#ifdef EINTR
+  while (fstat (fd, &statbuf) < 0 && errno == EINTR);
+#else
  fstat (fd, &statbuf);
+#endif
 #if defined(ARFMAG) || defined(AIAMAG)
  /* Advance member's time to that time */
  for (i = 0; i < sizeof ar_hdr.ar_date; i++)
--- a/build.sh.in
+++ b/build.sh.in
@@ -0,0 +1,69 @@
+#!/bin/sh
+
+# Shell script to build GNU Make in the absence of any `make' program.
+
+# Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+# 
+# GNU Make is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# GNU Make is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Make; see the file COPYING.  If not, write to
+# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+# See Makefile.in for comments describing these variables.
+
+srcdir='@srcdir@'
+CC='@CC@'
+CFLAGS='@CFLAGS@'
+CPPFLAGS='@CPPFLAGS@'
+LDFLAGS='@LDFLAGS@'
+defines='@DEFS@ -DLIBDIR="${libdir}" -DINCLUDEDIR="${includedir}"'
+ALLOCA='@ALLOCA@'
+LOADLIBES='@LIBS@'
+extras='@LIBOBJS@'
+REMOTE='@REMOTE@'
+
+# Common prefix for machine-independent installed files.
+prefix=@prefix@
+# Common prefix for machine-dependent installed files.
+exec_prefix=@exec_prefix@
+# Directory to find libraries in for `-lLIB'.
+libdir=${exec_prefix}/lib
+# Directory to search by default for included makefiles.
+includedir=${prefix}/include
+
+# Exit as soon as any command fails.
+set -e
+
+# These are all the objects we need to link together.
+objs="commands.o job.o dir.o file.o misc.o main.o read.o remake.o rule.o implicit.o default.o variable.o expand.o function.o vpath.o version.o ar.o arscan.o signame.o getopt.o getopt1.o glob/glob.o glob/fnmatch.o remote-${REMOTE}.o ${extras} ${ALLOCA}"
+
+# Compile the source files into those objects.
+for file in `echo ${objs} | sed 's/\.o/.c/g'`; do
+  echo compiling ${file}...
+  $CC $CPPFLAGS $CFLAGS $defines -c \
+      -I. -I${srcdir} -I${srcdir}/glob ${srcdir}/$file
+done
+
+# The object files were actually all put in the current directory.
+# Remove the source directory names from the list.
+srcobjs="$objs"
+objs=
+for obj in $srcobjs; do
+  objs="$objs `basename $obj`"
+done
+
+# Link all the objects together.
+echo linking make...
+$CC $LDFLAGS $objs $LOADLIBES -o make.new
+echo done
+mv -f make.new make
--- a/build.template
+++ b/build.template
@@ -1,8 +1,8 @@
 #!/bin/sh
-
 # Shell script to build GNU Make in the absence of any `make' program.
+# @configure_input@

-# Copyright (C) 1993 Free Software Foundation, Inc.
+# Copyright (C) 1993, 1994 Free Software Foundation, Inc.
 # This file is part of GNU Make.
 # 
 # GNU Make is free software; you can redistribute it and/or modify
@@ -24,6 +24,7 @@
 srcdir='@srcdir@'
 CC='@CC@'
 CFLAGS='@CFLAGS@'
+CPPFLAGS='@CPPFLAGS@'
 LDFLAGS='@LDFLAGS@'
 defines='@DEFS@ -DLIBDIR="${libdir}" -DINCLUDEDIR="${includedir}"'
 ALLOCA='@ALLOCA@'
@@ -32,9 +33,9 @@ extras='@LIBOBJS@'
 REMOTE='@REMOTE@'

 # Common prefix for machine-independent installed files.
-prefix=/usr/local
+prefix='@prefix@'
 # Common prefix for machine-dependent installed files.
-exec_prefix=/usr/local
+exec_prefix='@exec_prefix@'
 # Directory to find libraries in for `-lXXX'.
 libdir=${exec_prefix}/lib
 # Directory to search by default for included makefiles.
@@ -49,7 +50,8 @@ objs="%objs% remote-${REMOTE}.o ${extras} ${ALLOCA}"
 # Compile the source files into those objects.
 for file in `echo ${objs} | sed 's/\.o/.c/g'`; do
  echo compiling ${file}...
-  $CC $CFLAGS $defines -c -I. -I${srcdir} -I${srcdir}/glob ${srcdir}/$file
+  $CC $defines $CPPFLAGS $CFLAGS \
+      -c -I. -I${srcdir} -I${srcdir}/glob ${srcdir}/$file
 done

 # The object files were actually all put in the current directory.
--- a/commands.c
+++ b/commands.c
@@ -87,7 +87,7 @@ set_file_variables (file)
      for (d = enter_file (".SUFFIXES")->deps; d != 0; d = d->next)
 	{
 	  unsigned int slen = strlen (dep_name (d));
-	  if (len > slen && !strncmp (dep_name (d), name + len - slen, slen))
+	  if (len > slen && !strncmp (dep_name (d), name + (len - slen), slen))
 	    {
 	      file->stem = savestring (name, len - slen);
 	      break;
@@ -116,34 +116,64 @@ set_file_variables (file)
  DEFINE_VARIABLE ("@", 1, at);
  DEFINE_VARIABLE ("%", 1, percent);

-  /* Make sure that no dependencies are repeated.  This does not
-     really matter for the purpose of updating targets, but it
-     might make some names be listed twice for $^ and $?.  */
-
-  uniquize_deps (file->deps);
-
-  /* Compute the values for $^ and $?.  */
+  /* Compute the values for $^, $+, and $?.  */

  {
-    register unsigned int caret_len, qmark_len;
-    char *caret_value;
+    register unsigned int qmark_len, plus_len;
+    char *caret_value, *plus_value;
    register char *cp;
    char *qmark_value;
    register char *qp;
    register struct dep *d;
    unsigned int len;

-    caret_len = qmark_len = 0;
+    /* Compute first the value for $+, which is supposed to contain
+       duplicate dependencies as they were listed in the makefile.  */
+
+    plus_len = 0;
+    for (d = file->deps; d != 0; d = d->next)
+      plus_len += strlen (dep_name (d)) + 1;
+
+    len = plus_len == 0 ? 1 : plus_len;
+    cp = plus_value = (char *) alloca (len);
+
+    qmark_len = plus_len;	/* Will be this or less.  */
    for (d = file->deps; d != 0; d = d->next)
      {
-	register unsigned int i = strlen (dep_name (d)) + 1;
-	caret_len += i;
-	if (d->changed)
-	  qmark_len += i;
+	char *c = dep_name (d);
+
+#ifndef	NO_ARCHIVES
+	if (ar_name (c))
+	  {
+	    c = index (c, '(') + 1;
+	    len = strlen (c) - 1;
+	  }
+	else
+#endif
+	  len = strlen (c);
+
+	bcopy (c, cp, len);
+	cp += len;
+	*cp++ = ' ';
+
+	if (! d->changed)
+	  qmark_len -= len + 1;	/* Don't space in $? for this one.  */
      }

-    len = caret_len == 0 ? 1 : caret_len;
-    cp = caret_value = (char *) alloca (len);
+    /* Kill the last space and define the variable.  */
+
+    cp[cp > plus_value ? -1 : 0] = '\0';
+    DEFINE_VARIABLE ("+", 1, plus_value);
+
+    /* Make sure that no dependencies are repeated.  This does not
+       really matter for the purpose of updating targets, but it
+       might make some names be listed twice for $^ and $?.  */
+
+    uniquize_deps (file->deps);
+
+    /* Compute the values for $^ and $?.  */
+
+    cp = caret_value = plus_value; /* Reuse the buffer; it's big enough.  */
    len = qmark_len == 0 ? 1 : qmark_len;
    qp = qmark_value = (char *) alloca (len);

@@ -329,6 +359,10 @@ RETSIGTYPE
 fatal_error_signal (sig)
     int sig;
 {
+#ifdef	__MSDOS__
+  remove_intermediates (1);
+  exit (1);
+#else	/* Not MSDOS.  */
  handling_fatal_signal = 1;

  /* Set the handling for this signal to the default.
@@ -385,6 +419,7 @@ fatal_error_signal (sig)
     will be unblocked when we return and arrive then to kill us.  */
  if (kill (getpid (), sig) < 0)
    pfatal_with_name ("kill");
+#endif	/* MSDOS.  */
 }

 /* Delete FILE unless it's precious or not actually a file (phony),
@@ -416,7 +451,7 @@ delete_target (file, on_behalf_of)
    }
 #endif

-  if (stat (file->name, &st) == 0
+  if (safe_stat (file->name, &st) == 0
      && S_ISREG (st.st_mode)
      && (time_t) st.st_mtime != file->last_mtime)
    {
--- a/30
+++ b/30
@@ -1,7 +1,7 @@
 # NOTE: If you have no `make' program at all to process this makefile, run
 # `build.sh' instead.
 #
-# Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+# Copyright (C) 1988, 89, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
 # This file is part of GNU Make.
 # 
 # GNU Make is free software; you can redistribute it and/or modify
@@ -30,11 +30,9 @@ srcdir = @srcdir@
 CC = @CC@

 CFLAGS = @CFLAGS@
+CPPFLAGS = @CPPFLAGS@
 LDFLAGS = @LDFLAGS@

-# How to invoke ranlib.  This is only used by the `glob' subdirectory.
-RANLIB = @RANLIB@
-
 # Define these for your system as follows:
 #	-DNO_ARCHIVES		To disable `ar' archive support.
 #	-DNO_FLOAT		To avoid using floating-point numbers.
@@ -77,9 +75,9 @@ LOADLIBES = @LIBS@
 extras = @LIBOBJS@

 # Common prefix for machine-independent installed files.
-prefix = /usr/local
+prefix = @prefix@
 # Common prefix for machine-dependent installed files.
-exec_prefix = $(prefix)
+exec_prefix = @exec_prefix@

 # Directory to install `make' in.
 bindir = $(exec_prefix)/bin
@@ -119,8 +117,8 @@ MAKEINFO = makeinfo
 TEXI2DVI = texi2dvi

 # Programs to make tags files.
-ETAGS = etags -tw
-CTAGS = ctags -tw
+ETAGS = etags -w
+CTAGS = ctags -w

 objs = commands.o job.o dir.o file.o misc.o main.o read.o remake.o	\
       rule.o implicit.o default.o variable.o expand.o function.o	\
@@ -144,10 +142,9 @@ srcs = $(srcdir)/commands.c $(srcdir)/job.c $(srcdir)/dir.c		\
 .SUFFIXES: .o .c .h .ps .dvi .info .texinfo

 all: make
-check: # No tests.
 info: make.info
 dvi: make.dvi
-# Some makes apparently use .PHONY as the default goal is it is before `all'.
+# Some makes apparently use .PHONY as the default goal if it is before `all'.
 .PHONY: all check info dvi

 make.info: make.texinfo
@@ -166,17 +163,14 @@ make: $(objs)
 # -I. is needed to find config.h in the build directory.
 .c.o:
 	$(CC) $(defines) -c -I. -I$(srcdir) -I$(srcdir)/glob \
-	      $(CFLAGS) $< $(OUTPUT_OPTION)
+	      $(CPPFLAGS) $(CFLAGS) $< $(OUTPUT_OPTION)

 # For some losing Unix makes.
 SHELL = /bin/sh
 MAKE = make

 glob/libglob.a: FORCE config.h
-	cd glob; $(MAKE) CC='$(CC)' CFLAGS='$(CFLAGS) -I..' \
-			 CPPFLAGS='$(CPPFLAGS) -DHAVE_CONFIG_H' \
-			 RANLIB='$(RANLIB)' \
-			 libglob.a
+	cd glob; $(MAKE) libglob.a
 FORCE:

 tagsrcs = $(srcs) $(srcdir)/remote-*.c
@@ -201,7 +195,7 @@ $(bindir)/$(binprefix)make: make
 	   else \
 	     echo "$@ needs to be owned by group $(group) and setgid;"; \
 	     echo "otherwise the \`-l' option will probably not work."; \
-	     echo "You may need special priveleges to install $@."; \
+	     echo "You may need special privileges to install $@."; \
 	   fi; \
 	 else true; fi
 # Some systems can't deal with renaming onto a running binary.
@@ -247,13 +241,15 @@ check: check-loadavg

 .PHONY: clean realclean distclean mostlyclean
 clean: glob-clean
-	-rm -f make loadavg *.o core make.info* make.dvi
+	-rm -f make loadavg *.o core make.dvi
 distclean: clean glob-realclean
 	-rm -f Makefile config.h config.status build.sh stamp-config
+	-rm -f config.log config.cache
 	-rm -f TAGS tags
 	-rm -f make.?? make.??s make.log make.toc make.*aux
 	-rm -f loadavg.c
 realclean: distclean
+	-rm -f make.info*
 mostlyclean: clean

 .PHONY: glob-clean glob-realclean
--- a/configh.dos.template
+++ b/configh.dos.template
@@ -0,0 +1,65 @@
+/* Generated automatically from configure.in by autoheader.  DO NOT EDIT!  */
+
+#define INCLUDEDIR "c:/djgpp/include"
+#define LIBDIR "c:/djgpp/lib"
+
+/* Define if you have dirent.h.  */
+#define DIRENT
+
+/* Define if you have the strcoll function and it is properly defined.  */
+#define HAVE_STRCOLL
+
+/* Define if you have unistd.h.  */
+#define HAVE_UNISTD_H
+
+/* Define as the return type of signal handlers (int or void).  */
+#define RETSIGTYPE void
+
+/* Define if you have the ANSI C header files.  */
+#define STDC_HEADERS
+
+/* Define if `sys_siglist' is declared by <signal.h>.  */
+#define SYS_SIGLIST_DECLARED
+
+/* Define if you have getdtablesize.  */
+#define HAVE_GETDTABLESIZE
+
+/* Define if you have dup2.  */
+#define HAVE_DUP2
+
+/* Define if you have sys_siglist.  */
+#undef HAVE_SYS_SIGLIST
+
+/* Define if you have _sys_siglist.  */
+#undef HAVE__SYS_SIGLIST
+
+/* Define if you have psignal.  */
+#define HAVE_PSIGNAL
+
+/* Define if you have getcwd.  */
+#define HAVE_GETCWD
+
+/* Define if you have sigsetmask.  */
+#define HAVE_SIGSETMASK
+
+/* Define if you have setlinebuf.  */
+#define HAVE_SETLINEBUF
+
+/* Define if you have the <limits.h> header file.  */
+#define HAVE_LIMITS_H
+
+/* Define if you have the <sys/param.h> header file.  */
+#define HAVE_SYS_PARAM_H
+
+/* Define if you have the <fcntl.h> header file.  */
+#define HAVE_FCNTL_H
+
+/* Define if you have the <string.h> header file.  */
+#define HAVE_STRING_H
+
+/* Define if you have the <memory.h> header file.  */
+#define HAVE_MEMORY_H
+
+#define INCLUDEDIR "c:/djgpp/include"
+#define LIBDIR "c:/djgpp/lib"
+#define SCCS_GET "get"
--- a/configure.bat
+++ b/configure.bat
@@ -0,0 +1,43 @@
+@echo off
+echo Configuring MAKE for go32
+rem This batch file assumes a unix-type "sed" program
+
+update configh.dos config.h
+
+echo # Makefile generated by "configure.bat"> Makefile
+
+if exist config.sed del config.sed
+
+echo ": try_sl						">> config.sed
+echo "/\\$/ {						">> config.sed
+echo "  N						">> config.sed
+echo "  s/[ 	]*\\\n[ 	]*/ /			">> config.sed
+echo "  b try_sl					">> config.sed
+echo "}							">> config.sed
+
+echo "s/@srcdir@/./					">> config.sed
+echo "s/@CC@/gcc/					">> config.sed
+echo "s/@CFLAGS@/-O2 -g -DHAVE_CONFIG_H/		">> config.sed
+echo "s/@LDFLAGS@//					">> config.sed
+echo "s/@RANLIB@/ranlib/				">> config.sed
+echo "s/@DEFS@//					">> config.sed
+echo "s/@REMOTE@/stub/					">> config.sed
+echo "s/@ALLOCA@//					">> config.sed
+echo "s/@LIBS@//					">> config.sed
+echo "s/@LIBOBJS@//					">> config.sed
+echo "s/@SET_MAKE@//					">> config.sed
+echo "s/^Makefile *:/_Makefile:/			">> config.sed
+echo "s/^config.h *:/_config.h:/			">> config.sed
+echo "s/^defines *=.*$/defines =/			">> config.sed
+echo "/mv -f make.new make/d				">> config.sed
+
+echo "s/cd glob; $(MAKE)/$(MAKE) -C glob/		">> config.sed
+
+sed -e "s/^\"//" -e "s/\"$//" -e "s/[ 	]*$//" config.sed > config2.sed
+sed -f config2.sed Makefile.in >> Makefile
+del config.sed
+del config2.sed
+
+cd glob
+call configure
+cd ..
--- a/configure.in
+++ b/configure.in
@@ -1,72 +1,107 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_REVISION([$Id$])
-AC_INIT(vpath.c)		dnl A distinctive file to look for in srcdir.
+AC_PREREQ(2.1)dnl		dnl Minimum Autoconf version required.
+AC_INIT(vpath.c)dnl		dnl A distinctive file to look for in srcdir.
 AC_CONFIG_HEADER(config.h)
+AC_CONFIG_SUBDIRS(glob)		dnl Run configure in glob subdirectory.

 # We want these before the checks, so the checks can modify their values.
 test -z "$CFLAGS" && CFLAGS=-g AC_SUBST(CFLAGS)
 test -z "$LDFLAGS" && LDFLAGS=-g AC_SUBST(LDFLAGS)

-AC_SET_MAKE
+AC_PROG_MAKE_SET
 AC_PROG_CC
 AC_PROG_INSTALL
-AC_PROG_RANLIB
 AC_PROG_CPP			dnl Later checks need this.
 AC_AIX
 AC_ISC_POSIX
 AC_MINIX
-AC_STDC_HEADERS
-AC_DIR_HEADER
-AC_UID_T			dnl Also does gid_t.
-AC_GETGROUPS_T
-AC_PID_T
-AC_RETSIGTYPE
-AC_HAVE_HEADERS(unistd.h limits.h sys/param.h fcntl.h string.h memory.h \
-	        sys/timeb.h)
-AC_MINUS_C_MINUS_O
-AC_CONST			dnl getopt needs this.
-AC_STAT_MACROS_BROKEN
+AC_HEADER_STDC
+AC_HEADER_DIRENT
+AC_TYPE_UID_T			dnl Also does gid_t.
+AC_TYPE_GETGROUPS
+AC_TYPE_PID_T
+AC_TYPE_SIGNAL
+AC_CHECK_HEADERS(unistd.h limits.h sys/param.h fcntl.h string.h memory.h \
+	         sys/timeb.h)
+AC_PROG_CC_C_O
+AC_C_CONST			dnl getopt needs this.
+AC_HEADER_STAT

 AC_SUBST(LIBOBJS)

-AC_HAVE_FUNCS(getdtablesize sys_siglist _sys_siglist psignal \
-	      dup2 getcwd sigsetmask getgroups setlinebuf \
-	      seteuid setegid setreuid setregid strerror)
-AC_ALLOCA
-AC_VFORK
-AC_SETVBUF_REVERSED
-AC_GETLOADAVG
-AC_STRCOLL
+AC_DEFUN(AC_CHECK_SYMBOL, [dnl
+AC_MSG_CHECKING(for $1)
+AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
+AC_TRY_LINK(, [extern char *sys_siglist[]; puts(*sys_siglist);],
+	    ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
+if test "$ac_cv_check_symbol_$1" = yes; then
+changequote(,)dnl
+  ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
+changequote([,])dnl
+  AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
+fi
+AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl

-dnl Check out the wait reality.
-AC_HAVE_HEADERS(sys/wait.h) AC_HAVE_FUNCS(waitpid wait3)
-AC_COMPILE_CHECK(union wait, [#include <sys/types.h>
+AC_CHECK_FUNCS(getdtablesize psignal mktemp \
+	       dup2 getcwd sigsetmask getgroups setlinebuf \
+	       seteuid setegid setreuid setregid strerror)
+AC_CHECK_SYMBOL(sys_siglist)
+AC_CHECK_SYMBOL(_sys_siglist)
+AC_FUNC_ALLOCA
+AC_FUNC_VFORK
+AC_FUNC_SETVBUF_REVERSED
+AC_FUNC_GETLOADAVG
+AC_FUNC_STRCOLL
+
+if test $ac_cv_func_getdtablesize = no; then
+  AC_MSG_CHECKING(for sysconf (_SC_OPEN_MAX))
+  AC_CACHE_VAL(make_cv_sysconf_open_max, [dnl
+  AC_TRY_LINK([#include <unistd.h>], [int max = sysconf (_SC_OPEN_MAX);],
+	      [make_cv_sysconf_open_max=yes], [make_cv_sysconf_open_max=no])])
+  if test $make_cv_sysconf_open_max = yes; then
+    AC_DEFINE(HAVE_SYSCONF_OPEN_MAX)
+  fi
+  AC_MSG_RESULT($make_cv_sysconf_open_max)
+fi
+
+# Check out the wait reality.
+AC_CHECK_HEADERS(sys/wait.h) AC_CHECK_FUNCS(waitpid wait3)
+AC_MSG_CHECKING(for union wait)
+AC_CACHE_VAL(make_cv_union_wait, [dnl
+AC_TRY_LINK([#include <sys/types.h>
 #include <sys/wait.h>],
-	 	 [union wait status; int pid; pid = wait (&status);
+	    [union wait status; int pid; pid = wait (&status);
 #ifdef WEXITSTATUS
 /* Some POSIXoid systems have both the new-style macros and the old
   union wait type, and they do not work together.  If union wait
   conflicts with WEXITSTATUS et al, we don't want to use it at all.  */
 if (WEXITSTATUS (status) != 0) pid = -1;
+#ifdef WTERMSIG
+/* If we have WEXITSTATUS and WTERMSIG, just use them on ints.  */
+-- blow chunks here --
+#endif
 #endif
 #ifdef HAVE_WAITPID
 /* Make sure union wait works with waitpid.  */
 pid = waitpid (-1, &status, 0);
 #endif
 ],
-		 AC_DEFINE(HAVE_UNION_WAIT))
+	    [make_cv_union_wait=yes], [make_cv_union_wait=no])])
+if test "$make_cv_union_wait" = yes; then
+  AC_DEFINE(HAVE_UNION_WAIT)
+fi
+AC_MSG_RESULT($make_cv_union_wait)

-AC_SYS_SIGLIST_DECLARED
+AC_DECL_SYS_SIGLIST

 # The presence of the following is not meant to imply
 # that make necessarily works on those systems.
-AC_DYNIX_SEQ
-AC_XENIX_DIR
-AC_IRIX_SUN
+AC_CHECK_LIB(sun, getpwnam)

 AC_SUBST(REMOTE) REMOTE=stub
-AC_WITH(customs, [REMOTE=cstms
-LIBS="$LIBS libcustoms.a"])
+AC_ARG_WITH(customs, [export jobs with the Customs daemon (NOT SUPPORTED)],
+[REMOTE=cstms LIBS="$LIBS libcustoms.a"])

 echo checking for location of SCCS get command
 if test -f /usr/sccs/get; then
@@ -88,7 +123,7 @@ if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
 fi
 rm -f s.conftest conftoast

-AC_OUTPUT(Makefile build.sh glob/Makefile, [
+AC_OUTPUT(Makefile build.sh, [
 # Makefile uses this timestamp file to know when to remake Makefile,
 # build.sh, and glob/Makefile.
 touch stamp-config])
--- a/default.c
+++ b/default.c
@@ -1,5 +1,5 @@
 /* Data base of default implicit rules for GNU Make.
-Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -23,6 +23,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "commands.h"
 #include "variable.h"

+/* Define GCC_IS_NATIVE if gcc is the native development environment on
+   your system (gcc/bison/flex vs cc/yacc/lex).  */
+#ifdef __MSDOS__
+#define GCC_IS_NATIVE
+#endif
+

 /* This is the default list of suffixes for suffix rules.
   `.s' must come last, so that a `.o' file will be made from
@@ -133,12 +139,20 @@ static char *default_suffix_rules[] =
    ".c.ln",
    "$(LINT.c) -C$* $<",
    ".y.ln",
+#ifndef __MSDOS__
    "$(YACC.y) $< \n $(LINT.c) -C$* y.tab.c \n $(RM) y.tab.c",
+#else
+    "$(YACC.y) $< \n $(LINT.c) -C$* y_tab.c \n $(RM) y_tab.c",
+#endif
    ".l.ln",
    "@$(RM) $*.c\n $(LEX.l) $< > $*.c\n$(LINT.c) -i $*.c -o $@\n $(RM) $*.c",

    ".y.c",
+#ifndef __MSDOS__
    "$(YACC.y) $< \n mv -f y.tab.c $@",
+#else
+    "$(YACC.y) $< \n mv -f y_tab.c $@",
+#endif
    ".l.c",
    "@$(RM) $@ \n $(LEX.l) $< > $@",

@@ -195,16 +209,15 @@ static char *default_suffix_rules[] =
 static char *default_variables[] =
  {
    "AR", "ar",
-#ifndef __hpux
    "ARFLAGS", "rv",
-#else
-    /* HPUX ar's f flag says to truncate the file names to archive member
-       name length in comparisons, so replacement notices the equality.  */
-    "ARFLAGS", "rfv",
-#endif
    "AS", "as",
+#ifdef GCC_IS_NATIVE
+    "CC", "gcc",
+    "CXX", "gcc",
+#else
    "CC", "cc",
    "CXX", "g++",
+#endif

    /* This expands to $(CO) $(COFLAGS) $< $@ if $@ does not exist,
       and to the empty string if $@ does exist.  */
@@ -237,7 +250,11 @@ static char *default_variables[] =
 #endif	/* Cray.  */
    "GET", SCCS_GET,
    "LD", "ld",
+#ifdef GCC_IS_NATIVE
+    "LEX", "flex",
+#else
    "LEX", "lex",
+#endif
    "LINT", "lint",
    "M2C", "m2c",
 #ifdef	pyr
@@ -250,7 +267,11 @@ static char *default_variables[] =
    "PC", "pc",
 #endif	/* CRAY.  */
 #endif	/* pyr.  */
+#ifdef GCC_IS_NATIVE
+    "YACC", "bison -y",
+#else
    "YACC", "yacc",	/* Or "bison -y"  */
+#endif
    "MAKEINFO", "makeinfo",
    "TEX", "tex",
    "TEXI2DVI", "texi2dvi",
--- a/dir.c
+++ b/dir.c
@@ -1,5 +1,5 @@
 /* Directory hashing for GNU Make.
-Copyright (C) 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -18,26 +18,26 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

 #include "make.h"

-#if	defined (POSIX) || defined (DIRENT) || defined (__GNU_LIBRARY__)
+#if	defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__)
 #include <dirent.h>
 #ifndef	__GNU_LIBRARY__
 #define D_NAMLEN(d) strlen((d)->d_name)
 #else	/* GNU C library.  */
 #define D_NAMLEN(d) ((d)->d_namlen)
 #endif	/* Not GNU C library.  */
-#else	/* Not POSIX or DIRENT.  */
+#else	/* Not POSIX or HAVE_DIRENT_H.  */
 #define direct dirent
 #define D_NAMLEN(d) ((d)->d_namlen)
-#ifdef	SYSNDIR
+#ifdef	HAVE_SYS_NDIR_H
 #include <sys/ndir.h>
-#endif	/* SYSNDIR */
-#ifdef	SYSDIR
+#endif	/* HAVE_SYS_NDIR_H */
+#ifdef	HAVE_SYS_DIR_H
 #include <sys/dir.h>
-#endif	/* SYSDIR */
-#ifdef NDIR
+#endif	/* HAVE_SYS_DIR_H */
+#ifdef HAVE_NDIR_H
 #include <ndir.h>
-#endif	/* NDIR */
-#endif	/* POSIX or DIRENT or __GNU_LIBRARY__.  */
+#endif	/* HAVE_NDIR_H */
+#endif	/* POSIX or HAVE_DIRENT_H or __GNU_LIBRARY__.  */

 #if defined (POSIX) && !defined (__GNU_LIBRARY__)
 /* Posix does not require that the d_ino field be present, and some
@@ -47,6 +47,49 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
 #endif /* POSIX */

+#ifdef __MSDOS__
+#include <ctype.h>
+
+static char *
+dosify (filename)
+     char *filename;
+{
+  static char dos_filename[14];
+  char *df;
+  int i;
+
+  if (filename == 0)
+    return 0;
+
+  if (strpbrk (filename, "\"*+,;<=>?[\\]|") != 0)
+    return filename;
+
+  df = dos_filename;
+
+  /* First, transform the name part.  */
+  for (i = 0; *filename != '\0' && i < 8 && *filename != '.'; ++i)
+    *df++ = tolower (*filename++);
+
+  /* Now skip to the next dot.  */
+  while (*filename != '\0' && *filename != '.')
+    ++filename;
+  if (*filename != '\0')
+    {
+      *df++ = *filename++;
+      for (i = 0; *filename != '\0' && i < 3 && *filename != '.'; ++i)
+	*df++ = tolower (*filename++);
+    }
+
+  /* Look for more dots.  */
+  while (*filename != '\0' && *filename != '.')
+    ++filename;
+  if (*filename == '.')
+    return filename;
+  *df = 0;
+  return dos_filename;
+}
+#endif
+
 /* Hash table of directories.  */

 #ifndef	DIRECTORY_BUCKETS
@@ -136,7 +179,7 @@ find_directory (name)
      /* The directory is not in the name hash table.
 	 Find its device and inode numbers, and look it up by them.  */

-      if (stat (name, &st) < 0)
+      if (safe_stat (name, &st) < 0)
 	/* Couldn't stat the directory.  Mark this by
 	   setting the `contents' member to a nil pointer.  */
 	dir->contents = 0;
@@ -213,6 +256,10 @@ dir_contents_file_exists_p (dir, filename)
    /* The directory could not be stat'd or opened.  */
    return 0;

+#ifdef __MSDOS__
+  filename = dosify (filename);
+#endif
+
  hash = 0;
  if (filename != 0)
    {
@@ -404,6 +451,10 @@ file_impossible_p (filename)
    /* There are no files entered for this directory.  */
    return 0;

+#ifdef __MSDOS__
+  p = filename = dosify (p);
+#endif
+
  for (hash = 0; *p != '\0'; ++p)
    HASH (hash, *p);
  hash %= DIRFILE_BUCKETS;
--- a/expand.c
+++ b/expand.c
@@ -1,5 +1,5 @@
 /* Variable expansion functions for GNU Make.
-Copyright (C) 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 91, 92, 93, 95 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -197,9 +197,9 @@ variable_expand (line)
 	    char openparen = *p;
 	    char closeparen = (openparen == '(') ? ')' : '}';
 	    register char *beg = p + 1;
+	    int free_beg = 0;
 	    char *op, *begp;
-	    char *end;
-	    char *colon = 0;
+	    char *end, *colon;

 	    op = o;
 	    begp = p;
@@ -213,10 +213,18 @@ variable_expand (line)
 	    /* Is there a variable reference inside the parens or braces?
 	       If so, expand it before expanding the entire reference.  */

-	    p1 = index (beg, closeparen);
+	    end = index (beg, closeparen);
+	    if (end == 0)
+	      {
+		/* Unterminated variable reference.  */
+		if (reading_filename != 0)
+		  makefile_fatal (reading_filename, *reading_lineno_ptr,
+				  "unterminated variable reference");
+		else
+		  fatal ("unterminated variable reference");
+	      }
+	    p1 = lindex (beg, end, '$');
 	    if (p1 != 0)
-	      p1 = lindex (beg, p1, '$');
-	    if (p1 != 0 && lindex (beg, p1, ':') == 0)
 	      {
 		/* BEG now points past the opening paren or brace.
 		   Count parens or braces until it is matched.  */
@@ -227,133 +235,109 @@ variable_expand (line)
 		      ++count;
 		    else if (*p == closeparen && --count < 0)
 		      break;
-		    else if (colon == 0 && count == 0 && *p == ':')
-		      /* Record where we found a colon, which
-			 indicates a substitution reference.
-			 We want to expand the text before the
-			 reference only.  */
-		      colon = p;
 		  }
 		/* If COUNT is >= 0, there were unmatched opening parens
 		   or braces, so we go to the simple case of a variable name
 		   such as `$($(a)'.  */
 		if (count < 0)
 		  {
-		    char *name = expand_argument (beg, colon == 0 ? p : colon);
-		    unsigned int namelen = strlen (name);
-		    if (colon == 0)
-		      {
-			/* This is a simple reference to the expanded name.  */
-			o = reference_variable (o, name, namelen);
-			free (name);
-			break;
-		      }
-		    else
-		      {
-			/* This is a substitution reference to the expanded
-			   name.  We replace the pending text with a copy
-			   containing the expanded name in place of the
-			   original name, and then fall through to
-			   the normal substitution reference code below.  */
-			unsigned int restlen = strlen (colon) + 1;
-			beg = (char *) alloca (namelen + restlen);
-			bcopy (name, beg, namelen);
-			bcopy (colon, &beg[namelen], restlen);
-			/* Point COLON into the new copy.  */
-			colon = &beg[namelen];
-		      }
+		    beg = expand_argument (beg, p); /* Expand the name.  */
+		    free_beg = 1; /* Remember to free BEG when finished.  */
+		    end = index (beg, '\0');
 		  }
 	      }
+	    else
+	      /* Advance P to the end of this reference.  After we are
+                 finished expanding this one, P will be incremented to
+                 continue the scan.  */
+	      p = end;

 	    /* This is not a reference to a built-in function and
-	       it does not contain any variable references inside.
-	       There are several things it could be.  */
+	       any variable references inside are now expanded.
+	       Is the resultant text a substitution reference?  */

-	    if (colon == 0)
-	      colon = index (beg, ':');
-	    if (colon != 0 && lindex (beg, colon, closeparen) == 0)
+	    colon = lindex (beg, end, ':');
+	    if (colon != 0)
 	      {
-		/* This is a substitution reference: $(FOO:A=B).  */
-		int count;
+		/* This looks like a substitution reference: $(FOO:A=B).  */
 		char *subst_beg, *subst_end, *replace_beg, *replace_end;

-		v = lookup_variable (beg, colon - beg);
-		if (v == 0)
-		  warn_undefined (beg, colon - beg);
-
 		subst_beg = colon + 1;
-		count = 0;
-		for (p = subst_beg; *p != '\0'; ++p)
+		subst_end = index (subst_beg, '=');
+		if (subst_end == 0)
+		  /* There is no = in sight.  Punt on the substitution
+		     reference and treat this as a variable name containing
+		     a colon, in the code below.  */
+		  colon = 0;
+		else
 		  {
-		    if (*p == openparen)
-		      ++count;
-		    else if (*p == closeparen)
-		      --count;
-		    else if (*p == '=' && count <= 0)
-		      break;
+		    replace_beg = subst_end + 1;
+		    replace_end = end;
+
+		    /* Extract the variable name before the colon
+		       and look up that variable.  */
+		    v = lookup_variable (beg, colon - beg);
+		    if (v == 0)
+		      warn_undefined (beg, colon - beg);
+
+		    if (v != 0 && *v->value != '\0')
+		      {
+			char *value = (v->recursive ? recursively_expand (v)
+				       : v->value);
+			char *pattern, *percent;
+			if (free_beg)
+			  {
+			    *subst_end = '\0';
+			    pattern = subst_beg;
+			  }
+			else
+			  {
+			    pattern = (char *) alloca (subst_end - subst_beg
+						       + 1);
+			    bcopy (subst_beg, pattern, subst_end - subst_beg);
+			    pattern[subst_end - subst_beg] = '\0';
+			  }
+			percent = find_percent (pattern);
+			if (percent != 0)
+			  {
+			    char *replace;
+			    if (free_beg)
+			      {
+				*replace_end = '\0';
+				replace = replace_beg;
+			      }
+			    else
+			      {
+				replace = (char *) alloca (replace_end
+							   - replace_beg
+							   + 1);
+				bcopy (replace_beg, replace,
+				       replace_end - replace_beg);
+				replace[replace_end - replace_beg] = '\0';
+			      }
+			    
+			    o = patsubst_expand (o, value, pattern, replace,
+						 percent, (char *) 0);
+			  }
+			else
+			  o = subst_expand (o, value,
+					    pattern, replace_beg,
+					    strlen (pattern),
+					    end - replace_beg,
+					    0, 1);
+			if (v->recursive)
+			  free (value);
+		      }
 		  }
-		if (count > 0)
-		  /* There were unmatched opening parens.  */
-		  return initialize_variable_output ();
-		subst_end = p;
-
-		replace_beg = p + 1;
-		count = 0;
-		for (p = replace_beg; *p != '\0'; ++p)
-		  {
-		    if (*p == openparen)
-		      ++count;
-		    else if (*p == closeparen && --count < 0)
-		      break;
-		  }
-		if (count > 0)
-		  /* There were unmatched opening parens.  */
-		  return initialize_variable_output ();
-		end = p;
-		replace_end = p;
-
-		p = expand_argument (subst_beg, subst_end);
-		p1 = expand_argument (replace_beg, replace_end);
-
-		if (v != 0 && *v->value != '\0')
-		  {
-		    char *value = (v->recursive ? recursively_expand (v)
-				   : v->value);
-		    char *percent = find_percent (p);
-		    if (percent != 0)
-		      o = patsubst_expand (o, value, p, p1,
-					   percent, (char *) 0);
-		    else
-		      o = subst_expand (o, value,
-					p, p1, strlen (p), strlen (p1),
-					0, 1);
-		    if (v->recursive)
-		      free (value);
-		  }
-
-		free (p);
-		free (p1);
 	      }

-	    /* No, this must be an ordinary variable reference.  */
-	    else
-	      {
-		/* Look up the value of the variable.  */
-		end = index (beg, closeparen);
-		if (end == 0)
-		  {
-		    /* Unterminated variable reference.  */
-		    if (reading_filename != 0)
-		      makefile_fatal (reading_filename, *reading_lineno_ptr,
-				      "unterminated variable reference");
-		    else
-		      fatal ("unterminated variable reference");
-		  }
+	    if (colon == 0)
+	      /* This is an ordinary variable reference.
+		 Look up the value of the variable.  */
 		o = reference_variable (o, beg, end - beg);
-	      }

-	    /* Advance p past the variable reference to resume scan.  */
-	    p = end;
+	  if (free_beg)
+	    free (beg);
 	  }
 	  break;

--- a/file.c
+++ b/file.c
@@ -383,6 +383,47 @@ snap_deps ()
  f = lookup_file (".EXPORT_ALL_VARIABLES");
  if (f != 0 && f->is_target)
    export_all_variables = 1;
+
+  f = lookup_file (".IGNORE");
+  if (f != 0 && f->is_target)
+    {
+      if (f->deps == 0)
+	ignore_errors_flag = 1;
+      else
+	for (d = f->deps; d != 0; d = d->next)
+	  for (f2 = d->file; f2 != 0; f2 = f2->prev)
+	    f2->command_flags |= COMMANDS_NOERROR;
+    }
+
+  f = lookup_file (".SILENT");
+  if (f != 0 && f->is_target)
+    {
+      if (f->deps == 0)
+	silent_flag = 1;
+      else
+	for (d = f->deps; d != 0; d = d->next)
+	  for (f2 = d->file; f2 != 0; f2 = f2->prev)
+	    f2->command_flags |= COMMANDS_SILENT;
+    }
+
+  f = lookup_file (".POSIX");
+  if (f != 0 && f->is_target)
+    posix_pedantic = 1;
+}
+
+/* Set the `command_state' member of FILE and all its `also_make's.  */
+
+void
+set_command_state (file, state)
+     struct file *file;
+     int state;
+{
+  struct dep *d;
+
+  file->command_state = state;
+
+  for (d = file->also_make; d != 0; d = d->next)
+    d->file->command_state = state;
 }

 /* Print the data base of files.  */
--- a/file.h
+++ b/file.h
@@ -25,7 +25,8 @@ struct file
    struct file *next;
    char *name;
    struct dep *deps;
-    struct commands *cmds;	/* Commands to execute for this target */
+    struct commands *cmds;	/* Commands to execute for this target.  */
+    int command_flags;		/* Flags OR'd in for cmds; see commands.h.  */
    char *stem;			/* Implicit stem, if an implicit
    				   rule has been used */
    struct dep *also_make;	/* Targets that are made by making this.  */
@@ -85,6 +86,7 @@ extern struct file *default_goal_file, *suffix_file, *default_file;
 extern struct file *lookup_file (), *enter_file ();
 extern void remove_intermediates (), snap_deps ();
 extern void rename_file (), file_hash_enter ();
+extern void set_command_state ();


 extern time_t f_mtime ();
--- a/function.c
+++ b/function.c
@@ -22,6 +22,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "commands.h"
 #include "job.h"

+#ifdef __MSDOS__
+#include <process.h>
+#endif
+
 static char *string_glob ();

 /* Store into VARIABLE_BUFFER at O the result of scanning TEXT and replacing
@@ -371,6 +375,7 @@ expand_function (o, function, text, end)
 	else
 	  error_prefix = "";

+#ifndef	  __MSDOS__
 	if (pipe (pipedes) < 0)
 	  {
 	    perror_with_name (error_prefix, "pipe");
@@ -475,6 +480,69 @@ expand_function (o, function, text, end)

 	    free (buffer);
 	  }
+#else	/* MSDOS.  */
+         {
+	   /* MS-DOS can't do fork, but it can do spawn.  However, this
+	      means that we don't have an opportunity to reopen stdout to
+	      trap it.  Thus, we save our own stdout onto a new descriptor
+	      and dup a temp file's descriptor onto our stdout temporarily.
+	      After we spawn the shell program, we dup our own stdout back
+	      to the stdout descriptor.  The buffer reading is the same as
+	      above, except that we're now reading from a file.  */
+
+	   int save_stdout;
+	   int child_stdout;
+	   char tmp_output[FILENAME_MAX];
+	   FILE *child_stream;
+	   unsigned int maxlen = 200;
+	   int cc;
+	   char *buffer;
+ 
+	   strcpy (tmp_output, "shXXXXXX");
+	   mktemp (tmp_output);
+	   child_stdout = open (tmp_output,
+				O_WRONLY|O_CREAT|O_TRUNC|O_TEXT, 0644);
+	   save_stdout = dup (1);
+	   dup2 (child_stdout, 1);
+	   spawnvp (P_WAIT, argv[0], argv);
+	   dup2 (save_stdout, 1);
+	   close (child_stdout);
+	   close (save_stdout);
+ 
+	   child_stdout = open (tmp_output, O_RDONLY|O_TEXT, 0644);
+ 
+	   buffer = xmalloc (maxlen);
+	   i = 0;
+	   do
+	     {
+	       if (i == maxlen)
+		 {
+		   maxlen += 512;
+		   buffer = (char *) xrealloc (buffer, maxlen + 1);
+		 }
+ 
+	       cc = read (child_stdout, &buffer[i], maxlen - i);
+	       if (cc > 0)
+		 i += cc;
+	     } while (cc > 0);
+ 
+	   close (child_stdout);
+	   unlink (tmp_output);
+ 
+	   if (i > 0)
+	     {
+	       if (buffer[i - 1] == '\n')
+		 buffer[--i] = '\0';
+	       else
+		 buffer[i] = '\0';
+	       p = buffer;
+	       while ((p = index (p, '\n')) != 0)
+		 *p++ = ' ';
+	       o = variable_buffer_output (o, buffer, i);
+	     }
+	   free (buffer);
+	 }
+#endif	/* Not MSDOS.  */

 	free (text);
 	break;
--- a/getloadavg.c
+++ b/getloadavg.c
@@ -1,5 +1,5 @@
 /* Get the system load averages.
-   Copyright (C) 1985, 86, 87, 88, 89, 91, 92, 93
+   Copyright (C) 1985, 86, 87, 88, 89, 91, 92, 93, 1994, 1995
   	Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
@@ -59,6 +59,11 @@
   We also #define LDAV_PRIVILEGED if a program will require
   special installation to be able to call getloadavg.  */

+/* This should always be first.  */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <sys/types.h>

 /* Both the Emacs and non-Emacs sections want this.  Some
@@ -69,20 +74,17 @@
 #endif


-#ifdef HAVE_CONFIG_H
-#if defined (emacs) || defined (CONFIG_BROKETS)
-/* We use <config.h> instead of "config.h" so that a compilation
-   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
-   (which it would do because it found this file in $srcdir).  */
-#include <config.h>
-#else
-#include "config.h"
-#endif
-#endif
-
-
 /* Exclude all the code except the test program at the end
-   if the system has its own `getloadavg' function.  */
+   if the system has its own `getloadavg' function.
+
+   The declaration of `errno' is needed by the test program
+   as well as the function itself, so it comes first.  */
+
+#include <errno.h>
+
+#ifndef errno
+extern int errno;
+#endif

 #ifndef HAVE_GETLOADAVG

@@ -141,6 +143,7 @@

 #if defined (__osf__) && (defined (__alpha) || defined (__alpha__))
 #define OSF_ALPHA
+#include <sys/table.h>
 #endif

 #if defined (__osf__) && (defined (mips) || defined (__mips__))
@@ -203,6 +206,10 @@
 #define LOAD_AVE_TYPE long
 #endif

+#if defined(alliant) && defined(i860) /* Alliant FX/2800 */
+#define LOAD_AVE_TYPE long
+#endif
+
 #endif /* No LOAD_AVE_TYPE.  */

 #ifdef OSF_ALPHA
@@ -212,6 +219,13 @@
 #define FSCALE 1024.0
 #endif

+#if defined(alliant) && defined(i860) /* Alliant FX/2800 */
+/* <sys/param.h> defines an incorrect value for FSCALE on an
+   Alliant FX/2800 Concentrix 2.2, according to ghazi@noc.rutgers.edu.  */
+#undef FSCALE
+#define FSCALE 100.0
+#endif
+

 #ifndef	FSCALE

@@ -289,7 +303,7 @@
 #define NLIST_STRUCT
 #endif

-#ifdef tex4300
+#ifdef tek4300
 #define NLIST_STRUCT
 #endif

@@ -297,6 +311,10 @@
 #define NLIST_STRUCT
 #endif

+#if defined(alliant) && defined(i860) /* Alliant FX/2800 */
+#define NLIST_STRUCT
+#endif
+
 #endif /* defined (NLIST_STRUCT) */


@@ -331,11 +349,6 @@
 #endif

 #include <stdio.h>
-#include <errno.h>
-
-#ifndef errno
-extern int errno;
-#endif

 /* LOAD_AVE_TYPE should only get defined if we're going to use the
   nlist method.  */
@@ -699,6 +712,18 @@ getloadavg (loadavg, nelem)
       : (load_ave.tl_avenrun.l[0] / (double) load_ave.tl_lscale));
 #endif	/* OSF_MIPS */

+#if !defined (LDAV_DONE) && defined (OSF_ALPHA)
+#define LDAV_DONE
+
+  struct tbl_loadavg load_ave;
+  table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
+  for (elem = 0; elem < nelem; elem++)
+    loadavg[elem]
+      = (load_ave.tl_lscale == 0
+       ? load_ave.tl_avenrun.d[elem]
+       : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
+#endif /* OSF_ALPHA */
+
 #if !defined (LDAV_DONE) && defined (VMS)
  /* VMS specific code -- read from the Load Ave driver.  */

--- a/implicit.c
+++ b/implicit.c
@@ -262,7 +262,7 @@ pattern_search (file, archive, depth, recursions)
    }

  /* If we have found a matching rule that won't match all filenames,
-     retroactively reject any "terminal" rules that do always match.  */
+     retroactively reject any non-"terminal" rules that do always match.  */
  if (specific_rule_matched)
    for (i = 0; i < nrules; ++i)
      if (!tryrules[i]->terminal)
--- a/job.c
+++ b/job.c
@@ -1,5 +1,5 @@
 /* Job execution and handling for GNU Make.
-Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -21,13 +21,21 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "job.h"
 #include "file.h"
 #include "variable.h"
-
-/* Default path to search for executables.  */
-static char default_path[] = ":/bin:/usr/bin";
+#include <assert.h>

 /* Default shell to use.  */
 char default_shell[] = "/bin/sh";

+#ifdef __MSDOS__
+#include <process.h>
+static int dos_pid = 123;
+static int dos_status;
+static char *dos_bname;
+static char *dos_bename;
+static int dos_batch_file;
+#endif /* MSDOS.  */
+
+
 /* If NGROUPS_MAX == 0 then try other methods for finding a real value.  */
 #if defined (NGROUPS_MAX) && NGROUPS_MAX == 0
 #undef NGROUPS_MAX
@@ -114,6 +122,9 @@ extern int setgid (), getgid ();
 #ifdef HAVE_GETDTABLESIZE
 extern int getdtablesize ();
 #else
+#ifdef HAVE_SYSCONF_OPEN_MAX
+#define getdtablesize()		((int) sysconf (_SC_OPEN_MAX))
+#else
 #include <sys/param.h>
 #define getdtablesize() NOFILE
 #if !defined (NOFILE) && defined (NOFILES_MAX)
@@ -122,6 +133,7 @@ extern int getdtablesize ();
 #endif
 #endif
 #endif
+#endif

 extern int getloadavg ();
 extern int start_remote_job_p ();
@@ -260,6 +272,7 @@ reap_children (block, err)
 	}
      else if (pid == 0)
 	{
+#ifndef	__MSDOS__
 	  /* No remote children.  Check for local children.  */

 	  if (any_local)
@@ -308,6 +321,14 @@ reap_children (block, err)
 	      exit_sig = WIFSIGNALED (status) ? WTERMSIG (status) : 0;
 	      coredump = WCOREDUMP (status);
 	    }
+#else	/* MSDOS.  */
+	  /* Life is very different on MSDOS.  */
+	  pid = dos_pid - 1;
+	  status = dos_status;
+	  exit_code = dos_status;
+	  exit_sig = 0;
+	  coredump = 0;
+#endif	/* Not MSDOS.  */
 	}
      else
 	/* We got a remote child.  */
@@ -359,9 +380,15 @@ reap_children (block, err)
 	    {
 	      /* The commands failed.  Write an error message,
 		 delete non-precious targets, and abort.  */
+	      static int delete_on_error = -1;
 	      child_error (c->file->name, exit_code, exit_sig, coredump, 0);
 	      c->file->update_status = 1;
-	      if (exit_sig != 0)
+	      if (delete_on_error == -1)
+		{
+		  struct file *f = lookup_file (".DELETE_ON_ERROR");
+		  delete_on_error = f != 0 && f->is_target;
+		}
+	      if (exit_sig != 0 || delete_on_error)
 		delete_child_targets (c);
 	    }
 	  else
@@ -383,7 +410,6 @@ reap_children (block, err)
 			 Since there are more commands that wanted to be run,
 			 the target was not completely remade.  So we treat
 			 this as if a command had failed.  */
-		      c->file->command_state = cs_finished;
 		      c->file->update_status = 1;
 		    }
 		  else
@@ -394,32 +420,33 @@ reap_children (block, err)
 			 by start_remote_job_p.  */
 		      c->remote = start_remote_job_p ();
 		      start_job_command (c);
+		      if (c->file->command_state == cs_running)
+			/* We successfully started the new command.
+			   Loop to reap more children.  */
+			continue;
 		    }
-		}

-	      switch (c->file->command_state)
-		{
-		case cs_running:
-		  /* Successfully started.  Loop to reap more children.  */
-		  continue;
-
-		case cs_finished:
 		  if (c->file->update_status != 0)
 		    /* We failed to start the commands.  */
 		    delete_child_targets (c);
-		  break;
-
-		default:
-		  error ("internal error: `%s' has bogus command_state \
-%d in reap_children",
-			 c->file->name, (int) c->file->command_state);
-		  abort ();
-		  break;
 		}
+	      else
+		/* There are no more commands.  We got through them all
+		   without an unignored error.  Now the target has been
+		   successfully updated.  */
+		c->file->update_status = 0;
 	    }

+	  /* When we get here, all the commands for C->file are finished
+	     (or aborted) and C->file->update_status contains 0 or 1.  But
+	     C->file->command_state is still cs_running if all the commands
+	     ran; notice_finish_file looks for cs_running to tell it that
+	     it's interesting to check the file's modtime again now.  */
+
 	  if (! handling_fatal_signal)
-	    /* Notice if the target of the commands has been changed.  */
+	    /* Notice if the target of the commands has been changed.
+	       This also propagates its values for command_state and
+	       update_status to its also_make files.  */
 	    notice_finished_file (c->file);

 	  if (debug_flag)
@@ -475,6 +502,13 @@ free_child (child)
 }

 #ifdef	POSIX
+#ifdef	__MSDOS__
+void
+unblock_sigs ()
+{
+  return;
+}
+#else
 extern sigset_t fatal_signal_set;

 void
@@ -485,6 +519,7 @@ unblock_sigs ()
  sigprocmask (SIG_SETMASK, &empty, (sigset_t *) 0);
 }
 #endif
+#endif

 /* Start a job to run the commands specified in CHILD.
   CHILD is updated to reflect the commands and ID of the child process.  */
@@ -495,9 +530,14 @@ start_job_command (child)
 {
  static int bad_stdin = -1;
  register char *p;
-  int flags = child->file->cmds->lines_flags[child->command_line - 1];
+  int flags;
  char **argv;

+  /* Combine the flags parsed for the line itself with
+     the flags specified globally for this target.  */
+  flags = (child->file->command_flags
+	   | child->file->cmds->lines_flags[child->command_line - 1]);
+
  p = child->command_ptr;
  child->noerror = flags & COMMANDS_NOERROR;
  while (*p != '\0')
@@ -519,7 +559,7 @@ start_job_command (child)
  if (question_flag && !(flags & COMMANDS_RECURSE))
    {  
      child->file->update_status = 1;
-      child->file->command_state = cs_finished;
+      notice_finished_file (child->file);
      return;
    }

@@ -552,9 +592,16 @@ start_job_command (child)

  if (argv == 0)
    {
+    next_command:
      /* This line has no commands.  Go to the next.  */
      if (job_next_command (child))
 	start_job_command (child);
+      else
+	{
+	  /* No more commands.  All done.  */
+	  child->file->update_status = 0;
+	  notice_finished_file (child->file);
+	}
      return;
    }

@@ -578,9 +625,7 @@ start_job_command (child)
    {
      free (argv[0]);
      free ((char *) argv);
-      if (job_next_command (child))
-	start_job_command (child);
-      return;
+      goto next_command;
    }

  /* Flush the output streams so they won't have things written twice.  */
@@ -618,6 +663,8 @@ start_job_command (child)
  if (child->environment == 0)
    child->environment = target_environment (child->file);

+#ifndef	__MSDOS__
+
  /* start_waiting_job has set CHILD->remote if we can start a remote job.  */
  if (child->remote)
    {
@@ -641,6 +688,8 @@ start_job_command (child)
    {
      /* Fork the child process.  */

+      char **parent_environ;
+
 #ifdef	 POSIX
      (void) sigprocmask (SIG_BLOCK, &fatal_signal_set, (sigset_t *) 0);
 #else
@@ -650,7 +699,9 @@ start_job_command (child)
 #endif

      child->remote = 0;
+      parent_environ = environ;
      child->pid = vfork ();
+      environ = parent_environ;	/* Restore value child may have clobbered.  */
      if (child->pid == 0)
 	{
 	  /* We are the child side.  */
@@ -667,10 +718,26 @@ start_job_command (child)
 	}
    }

+#else	/* MSDOS.  */
+  dos_status = spawnvpe (P_WAIT, argv[0], argv, child->environment);
+  ++dead_children;
+  child->pid = dos_pid++;
+  if (dos_batch_file)
+   {
+     dos_batch_file = 0;
+     remove (dos_bname);	/* Ignore errors.  */
+     if (access (dos_bename, 0))
+       dos_status = 1;
+     else
+       dos_status = 0;
+     remove (dos_bename);
+   }
+#endif	/* Not MSDOS.  */
+
  /* We are the parent side.  Set the state to
     say the commands are running and return.  */

-  child->file->command_state = cs_running;
+  set_command_state (child->file, cs_running);

  /* Free the storage used by the child's argument list.  */

@@ -681,7 +748,7 @@ start_job_command (child)

 error:
  child->file->update_status = 2;
-  child->file->command_state = cs_finished;
+  notice_finished_file (child->file);
 }

 /* Try to start a child running.
@@ -704,7 +771,7 @@ start_waiting_job (c)
    {
      /* Put this child on the chain of children waiting
 	 for the load average to go down.  */
-      c->file->command_state = cs_running;
+      set_command_state (c->file, cs_running);
      c->next = waiting_jobs;
      waiting_jobs = c;
      return 0;
@@ -727,15 +794,18 @@ start_waiting_job (c)
      unblock_sigs ();
      break;

+    case cs_not_started:
+      /* All the command lines turned out to be empty.  */
+      c->file->update_status = 0;
+      /* FALLTHROUGH */
+
    case cs_finished:
      notice_finished_file (c->file);
      free_child (c);
      break;

    default:
-      error ("internal error: `%s' command_state == %d in new_job",
-	     c->file->name, (int) c->file->command_state);
-      abort ();
+      assert (c->file->command_state == cs_finished);
      break;
    }

@@ -881,8 +951,11 @@ new_job (file)

  /* Fetch the first command line to be run.  */
  if (! job_next_command (c))
-    /* There were no commands!  */
-    free_child (c);
+    {
+      /* There were no commands!  */
+      free_child (c);
+      c->file->update_status = 0;
+    }
  else
    {
      /* The job is now primed.  Start it running.  */
@@ -910,8 +983,6 @@ job_next_command (child)
 	{
 	  /* There are no more lines to be expanded.  */
 	  child->command_ptr = 0;
-	  child->file->command_state = cs_finished;
-	  child->file->update_status = 0;
 	  return 0;
 	}
      else
@@ -924,6 +995,9 @@ job_next_command (child)
 static int
 load_too_high ()
 {
+#ifdef	__MSDOS__
+  return 1;
+#else
  extern int getloadavg ();
  double load;

@@ -949,6 +1023,7 @@ load_too_high ()
  user_access ();

  return load >= max_load_average;
+#endif
 }

 /* Start jobs that are waiting for the load to be lower.  */
@@ -1001,6 +1076,11 @@ child_execute_job (stdin_fd, stdout_fd, argv, envp)
  exec_command (argv, envp);
 }

+#if 0
+
+/* Default path to search for executables.  */
+static char default_path[] = ":/bin:/usr/bin";
+
 /* Search PATH for FILE.
   If successful, store the full pathname in PROGRAM and return 1.
   If not sucessful, return zero.  */
@@ -1012,7 +1092,13 @@ search_path (file, path, program)
  if (path == 0 || path[0] == '\0')
    path = default_path;

-  if (index (file, '/') != 0)
+  if (
+#ifdef __MSDOS__
+      strpbrk (file, "/\\:")
+#else
+      index (file, '/') 
+#endif
+      != 0)
    {
      strcpy (program, file);
      return 1;
@@ -1049,7 +1135,7 @@ search_path (file, path, program)
 	  int perm;
 	  char *p;

-	  p = index (path, ':');
+	  p = index (path, PATH_SEPARATOR_CHAR);
 	  if (p == 0)
 	    p = path + strlen (path);

@@ -1062,7 +1148,7 @@ search_path (file, path, program)
 	      bcopy (file, program + (p - path) + 1, len);
 	    }

-	  if (stat (program, &st) == 0
+	  if (safe_stat (program, &st) == 0
 	      && S_ISREG (st.st_mode))
 	    {
 	      if (st.st_uid == geteuid ())
@@ -1093,6 +1179,7 @@ search_path (file, path, program)

  return 0;
 }
+#endif /* search_path commented out */

 /* Replace the current process with one running the command in ARGV,
   with environment ENVP.  This function does not return.  */
@@ -1101,82 +1188,65 @@ void
 exec_command (argv, envp)
     char **argv, **envp;
 {
-  char *shell, *path;
-  PATH_VAR (program);
-  register char **ep;
-
-  shell = path = 0;
-  for (ep = envp; *ep != 0; ++ep)
-    {
-      if (shell == 0 && !strncmp(*ep, "SHELL=", 6))
-	shell = &(*ep)[6];
-      else if (path == 0 && !strncmp(*ep, "PATH=", 5))
-	path = &(*ep)[5];
-      else if (path != 0 && shell != 0)
-	break;
-    }
-
  /* Be the user, permanently.  */
  child_access ();

-  if (!search_path (argv[0], path, program))
-    error ("%s: Command not found", argv[0]);
-  else
+  /* Run the program.  */
+  environ = envp;
+  execvp (argv[0], argv);
+  
+  switch (errno)
    {
-      /* Run the program.  */
-      execve (program, argv, envp);
+    case ENOENT:
+      error ("%s: Command not found", argv[0]);
+      break;
+    case ENOEXEC:
+      {
+	/* The file is not executable.  Try it as a shell script.  */
+	extern char *getenv ();
+	char *shell;
+	char **new_argv;
+	int argc;

-      if (errno == ENOEXEC)
-	{
-	  PATH_VAR (shell_program);
-	  char *shell_path;
-	  if (shell == 0)
-	    shell_path = default_shell;
-	  else
-	    {
-	      if (search_path (shell, path, shell_program))
-		shell_path = shell_program;
-	      else
-		{
-		  shell_path = 0;
-		  error ("%s: Shell program not found", shell);
-		}
-	    }
+	shell = getenv ("SHELL");
+	if (shell == 0)
+	  shell = default_shell;

-	  if (shell_path != 0)
-	    {
-	      char **new_argv;
-	      int argc;
+	argc = 1;
+	while (argv[argc] != 0)
+	  ++argc;

-	      argc = 1;
-	      while (argv[argc] != 0)
-		++argc;
+	new_argv = (char **) alloca ((1 + argc + 1) * sizeof (char *));
+	new_argv[0] = shell;
+	new_argv[1] = program;
+	while (argc > 0)
+	  {
+	    new_argv[1 + argc] = argv[argc];
+	    --argc;
+	  }

-	      new_argv = (char **) alloca ((1 + argc + 1) * sizeof (char *));
-	      new_argv[0] = shell_path;
-	      new_argv[1] = program;
-	      while (argc > 0)
-		{
-		  new_argv[1 + argc] = argv[argc];
-		  --argc;
-		}
+	execvp (shell, new_argv);
+	if (errno == ENOENT)
+	  error ("%s: Shell program not found", shell);
+	else
+	  perror_with_name ("execvp: ", shell);
+	break;
+      }

-	      execve (shell_path, new_argv, envp);
-	      perror_with_name ("execve: ", shell_path);
-	    }
-	}
-      else
-	perror_with_name ("execve: ", program);
+    default:
+      perror_with_name ("execvp: ", argv[0]);
+      break;
    }

  _exit (127);
 }

-/* Figure out the argument list necessary to run LINE as a command.
-   Try to avoid using a shell.  This routine handles only ' quoting.
-   Starting quotes may be escaped with a backslash.  If any of the
-   characters in sh_chars[] is seen, or any of the builtin commands
-   listed in sh_cmds[] is the first word of a line, the shell is used.
+/* Figure out the argument list necessary to run LINE as a command.  Try to
+   avoid using a shell.  This routine handles only ' quoting, and " quoting
+   when no backslash, $ or ` characters are seen in the quotes.  Starting
+   quotes may be escaped with a backslash.  If any of the characters in
+   sh_chars[] is seen, or any of the builtin commands listed in sh_cmds[]
+   is the first word of a line, the shell is used.

   If RESTP is not NULL, *RESTP is set to point to the first newline in LINE.
   If *RESTP is NULL, newlines will be ignored.
@@ -1189,12 +1259,22 @@ construct_command_argv_internal (line, restp, shell, ifs)
     char *line, **restp;
     char *shell, *ifs;
 {
+#ifdef __MSDOS__
+  static char sh_chars[] = "\"|<>";
+  static char *sh_cmds[] = { "break", "call", "cd", "chcp", "chdir", "cls",
+			     "copy", "ctty", "date", "del", "dir", "echo",
+			     "erase", "exit", "for", "goto", "if", "if", "md",
+			     "mkdir", "path", "pause", "prompt", "rem", "ren",
+			     "rename", "set", "shift", "time", "type",
+			     "ver", "verify", "vol", ":", 0 };
+#else
  static char sh_chars[] = "#;\"*?[]&|<>(){}$`^";
  static char *sh_cmds[] = { "cd", "eval", "exec", "exit", "login",
 			     "logout", "set", "umask", "wait", "while", "for",
 			     "case", "if", ":", ".", "break", "continue",
 			     "export", "read", "readonly", "shift", "times",
 			     "trap", "switch", 0 };
+#endif
  register int i;
  register char *p;
  register char *ap;
@@ -1241,9 +1321,10 @@ construct_command_argv_internal (line, restp, shell, ifs)

      if (instring)
 	{
+	string_char:
 	  /* Inside a string, just copy any char except a closing quote
 	     or a backslash-newline combination.  */
-	  if (*p == '\'')
+	  if (*p == instring)
 	    instring = 0;
 	  else if (*p == '\\' && p[1] == '\n')
 	    goto swallow_escaped_newline;
@@ -1253,6 +1334,10 @@ construct_command_argv_internal (line, restp, shell, ifs)
 	      *restp = p;
 	      goto end_of_line;
 	    }
+	  /* Backslash, $, and ` are special inside double quotes.
+	     If we see any of those, punt.  */
+	  else if (instring == '"' && index ("\\$`", *p) != 0)
+	    goto slow;
 	  else
 	    *ap++ = *p;
 	}
@@ -1292,7 +1377,7 @@ construct_command_argv_internal (line, restp, shell, ifs)
 		  strcpy (p, p + 1);

 		if (instring)
-		  *ap++ = *p;
+		  goto string_char;
 		else
 		  {
 		    if (ap != new_argv[i])
@@ -1310,7 +1395,8 @@ construct_command_argv_internal (line, restp, shell, ifs)
 	    break;

 	  case '\'':
-	    instring = 1;
+	  case '"':
+	    instring = *p;
 	    break;

 	  case '\n':
@@ -1401,6 +1487,34 @@ construct_command_argv_internal (line, restp, shell, ifs)
      free (new_argv);
    }

+#ifdef __MSDOS__
+   {
+     FILE *batch;
+     dos_batch_file = 1;
+     if (dos_bname == 0)
+       {
+	 dos_bname = tempnam (".", "mk");
+	 for (i = 0; dos_bname[i] != '\0'; ++i)
+	   if (dos_bname[i] == '/')
+	     dos_bname[i] = '\\';
+	 dos_bename = (char *) xmalloc (strlen (dos_bname) + 5);
+	 strcpy (dos_bename, dos_bname);
+	 strcat (dos_bname, ".bat");
+	 strcat (dos_bename, ".err");
+       }
+     batch = fopen(bename, "w"); /* Create a file.  */
+     if (batch != NULL)
+       fclose (batch);
+     batch = fopen (dos_bname, "w");
+     fputs ("@echo off\n", batch);
+     fputs (line, batch);
+     fprintf (batch, "\nif errorlevel 1 del %s\n", dos_bename);
+     fclose (batch);
+     new_argv = (char **) xmalloc(2 * sizeof(char *));
+     new_argv[0] = strdup (bname);
+     new_argv[1] = 0;
+   }
+#else	/* Not MSDOS.  */
  {
    /* SHELL may be a multi-word command.  Construct a command line
       "SHELL -c LINE", with all special chars in LINE escaped.
@@ -1447,7 +1561,7 @@ construct_command_argv_internal (line, restp, shell, ifs)
 	    continue;
 	  }

-	if (*p == '\\' || *p == '\''
+	if (*p == '\\' || *p == '\'' || *p == '"'
 	    || isspace (*p)
 	    || index (sh_chars, *p) != 0)
 	  *ap++ = '\\';
@@ -1458,15 +1572,17 @@ construct_command_argv_internal (line, restp, shell, ifs)
    new_argv = construct_command_argv_internal (new_line, (char **) NULL,
 						(char *) 0, (char *) 0);
  }
+#endif	/* MSDOS.  */

  return new_argv;
 }

-/* Figure out the argument list necessary to run LINE as a command.
-   Try to avoid using a shell.  This routine handles only ' quoting.
-   Starting quotes may be escaped with a backslash.  If any of the
-   characters in sh_chars[] is seen, or any of the builtin commands
-   listed in sh_cmds[] is the first word of a line, the shell is used.
+/* Figure out the argument list necessary to run LINE as a command.  Try to
+   avoid using a shell.  This routine handles only ' quoting, and " quoting
+   when no backslash, $ or ` characters are seen in the quotes.  Starting
+   quotes may be escaped with a backslash.  If any of the characters in
+   sh_chars[] is seen, or any of the builtin commands listed in sh_cmds[]
+   is the first word of a line, the shell is used.

   If RESTP is not NULL, *RESTP is set to point to the first newline in LINE.
   If *RESTP is NULL, newlines will be ignored.
--- a/main.c
+++ b/main.c
@@ -1,5 +1,5 @@
 /* Argument parsing and main program of GNU Make.
-Copyright (C) 1988, 89, 90, 91, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 94, 1995 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -46,6 +46,7 @@ static void log_working_directory ();
 static void print_data_base (), print_version ();
 static void decode_switches (), decode_env_switches ();
 static void define_makeflags ();
+static char *quote_as_word ();

 /* The structure that describes an accepted command switch.  */

@@ -271,13 +272,13 @@ static const struct command_switch switches[] =
    { 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0, 0,
 	"print-directory", 0,
 	"Print the current directory" },
-    { 1, flag, (char *) &inhibit_print_directory_flag, 1, 1, 0, 0, 0,
+    { 2, flag, (char *) &inhibit_print_directory_flag, 1, 1, 0, 0, 0,
 	"no-print-directory", 0,
 	"Turn off -w, even if it was turned on implicitly" },
    { 'W', string, (char *) &new_files, 0, 0, 0, 0, 0,
 	"what-if", "FILE",
 	"Consider FILE to be infinitely new" },
-    { 2, flag, (char *) &warn_undefined_variables_flag, 1, 1, 0, 0, 0,
+    { 3, flag, (char *) &warn_undefined_variables_flag, 1, 1, 0, 0, 0,
 	"warn-undefined-variables", 0,
 	"Warn when an undefined variable is referenced" },
    { '\0', }
@@ -304,14 +305,28 @@ static struct option long_option_aliases[] =

 #define	DESCRIPTION_COLUMN	30

-/* List of non-switch arguments.  */
+/* List of goal targets.  */

-struct stringlist *other_args = 0;
+static struct dep *goals, *lastgoal;
+
+/* List of variables which were defined on the command line
+   (or, equivalently, in MAKEFLAGS).  */
+
+struct command_variable
+  {
+    struct command_variable *next;
+    struct variable *variable;
+  };
+static struct command_variable *command_variables;

 /* The name we were invoked with.  */

 char *program;

+/* Our current directory before processing any -C options.  */
+
+char *directory_before_chdir;
+
 /* Our current directory after processing all -C options.  */

 char *starting_directory;
@@ -331,6 +346,11 @@ struct file *default_goal_file;
   This is zero if the makefiles do not define .DEFAULT.  */

 struct file *default_file;
+
+/* Nonzero if we have seen the magic `.POSIX' target.
+   This turns on pedantic compliance with POSIX.2.  */
+
+int posix_pedantic;

 /* Mask of signals that are being caught with fatal_error_signal.  */

@@ -377,6 +397,15 @@ enter_command_line_file (name)
  return enter_file (savestring (name, strlen (name)));
 }

+/* Toggle -d on receipt of SIGUSR1.  */
+
+static RETSIGTYPE
+debug_signal_handler (sig)
+     int sig;
+{
+  debug_flag = ! debug_flag;
+}
+
 int
 main (argc, argv, envp)
     int argc;
@@ -387,14 +416,9 @@ main (argc, argv, envp)
  extern RETSIGTYPE fatal_error_signal (), child_handler ();
  register struct file *f;
  register unsigned int i;
-  register char *cmd_defs;
-  register unsigned int cmd_defs_len, cmd_defs_idx;
  char **p;
-  struct dep *goals = 0;
-  register struct dep *lastgoal;
  struct dep *read_makefiles;
  PATH_VAR (current_directory);
-  char *directory_before_chdir;

  default_goal_file = 0;
  reading_filename = 0;
@@ -464,6 +488,12 @@ main (argc, argv, envp)
  else 
    {
      program = rindex (argv[0], '/');
+#ifdef __MSDOS__
+      if (program == 0)
+	program = rindex (argv[0], '\\');
+      if (program == 0)
+	program = rindex (argv[0], ':');
+#endif
      if (program == 0)
 	program = argv[0];
      else
@@ -490,8 +520,8 @@ main (argc, argv, envp)
 					 strlen (current_directory));

  /* Read in variables from the environment.  It is important that this be
-     done before `MAKE' and `MAKEOVERRIDES' are figured out so their
-     definitions will not be ones from the environment.  */
+     done before $(MAKE) is are figured out so its definitions will not be
+     one from the environment.  */

  for (i = 0; envp[i] != 0; ++i)
    {
@@ -531,76 +561,7 @@ main (argc, argv, envp)
  if (print_version_flag)
    die (0);

-  /* Search for command line arguments that define variables,
-     and do the definitions.  Also save up the text of these
-     arguments in CMD_DEFS so we can put them into the values
-     of $(MAKEOVERRIDES) and $(MAKE).  */
-
-  cmd_defs_len = 200;
-  cmd_defs = (char *) xmalloc (cmd_defs_len);
-  cmd_defs_idx = 0;
-
-  for (i = 1; other_args->list[i] != 0; ++i)
-    {
-      if (other_args->list[i][0] == '\0')
-	/* Ignore empty arguments, so they can't kill enter_file.  */
-	continue;
-
-      /* Try a variable definition.  */
-      if (try_variable_definition ((char *) 0, 0,
-				   other_args->list[i], o_command))
-	{
-	  /* It succeeded.  The variable is already defined.
-	     Backslash-quotify it and append it to CMD_DEFS, then clobber it
-	     to 0 in the list so that it won't be taken for a goal target.  */
-	  register char *p = other_args->list[i];
-	  unsigned int l = strlen (p);
-	  if (cmd_defs_idx + (l * 2) + 1 > cmd_defs_len)
-	    {
-	      if (l * 2 > cmd_defs_len)
-		cmd_defs_len += l * 2;
-	      else
-		cmd_defs_len *= 2;
-	      cmd_defs = (char *) xrealloc (cmd_defs, cmd_defs_len);
-	    }
-	  
-	  while (*p != '\0')
-	    {
-	      if (index ("^;'\"*?[]$<>(){}|&~`\\ \t\r\n\f\v", *p) != 0)
-		cmd_defs[cmd_defs_idx++] = '\\';
-	      cmd_defs[cmd_defs_idx++] = *p++;
-	    }
-	  cmd_defs[cmd_defs_idx++] = ' ';
-	}
-      else
-	{
-	  /* It was not a variable definition, so it is a target to be made.
-	     Enter it as a file and add it to the dep chain of goals.  */
-	  f = enter_command_line_file (other_args->list[i]);
-	  f->cmd_target = 1;
-	  
-	  if (goals == 0)
-	    {
-	      goals = (struct dep *) xmalloc (sizeof (struct dep));
-	      lastgoal = goals;
-	    }
-	  else
-	    {
-	      lastgoal->next = (struct dep *) xmalloc (sizeof (struct dep));
-	      lastgoal = lastgoal->next;
-	    }
-	  lastgoal->name = 0;
-	  lastgoal->file = f;
-	}
-    }
-
-  if (cmd_defs_idx > 0)
-    {
-      cmd_defs[cmd_defs_idx - 1] = '\0';
-      (void) define_variable ("MAKEOVERRIDES", 13, cmd_defs, o_default, 0);
-    }
-  free (cmd_defs);
-
+#ifndef __MSDOS__
  /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
     (If it is a relative pathname with a slash, prepend our directory name
     so the result will run the same program regardless of the current dir.
@@ -610,17 +571,62 @@ main (argc, argv, envp)
  if (current_directory[0] != '\0'
      && argv[0] != 0 && argv[0][0] != '/' && index (argv[0], '/') != 0)
    argv[0] = concat (current_directory, "/", argv[0]);
+#endif

+  /* The extra indirection through $(MAKE_COMMAND) is done
+     for hysterical raisins.  */
  (void) define_variable ("MAKE_COMMAND", 12, argv[0], o_default, 0);
+  (void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default, 1);

-  /* Append the command-line variable definitions gathered above
-     so sub-makes will get them as command-line definitions.  */
+  if (command_variables != 0)
+    {
+      struct command_variable *cv;
+      struct variable *v;
+      unsigned int len = 0;
+      char *value, *p;

-  (void) define_variable ("MAKE", 4,
-			  "$(MAKE_COMMAND) $(MAKEOVERRIDES)", o_default, 1);
+      /* Figure out how much space will be taken up by the command-line
+	 variable definitions.  */
+      for (cv = command_variables; cv != 0; cv = cv->next)
+	{
+	  v = cv->variable;
+	  len += 2 * strlen (v->name);
+	  if (! v->recursive)
+	    ++len;
+	  ++len;
+	  len += 2 * strlen (v->value);
+	}
+
+      /* Now allocate a buffer big enough and fill it.  */
+      p = value = (char *) alloca (len);
+      for (cv = command_variables; cv != 0; cv = cv->next)
+	{
+	  v = cv->variable;
+	  p = quote_as_word (p, v->name, 0);
+	  if (! v->recursive)
+	    *p++ = ':';
+	  *p++ = '=';
+	  p = quote_as_word (p, v->value, 0);
+	  *p++ = ' ';
+	}
+      p[-1] = '\0';		/* Kill the final space and terminate.  */
+
+      /* Define an unchangeable variable with a name that no POSIX.2
+	 makefile could validly use for its own variable.  */
+      (void) define_variable ("-*-command-variables-*-", 23,
+			      value, o_automatic, 0);
+
+      /* Define the variable; this will not override any user definition.
+         Normally a reference to this variable is written into the value of
+         MAKEFLAGS, allowing the user to override this value to affect the
+         exported value of MAKEFLAGS.  In POSIX-pedantic mode, we cannot
+         allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
+         a reference to this hidden variable is written instead. */
+      (void) define_variable ("MAKEOVERRIDES", 13,
+			      "${-*-command-variables-*-}", o_env, 1);
+    }

  /* If there were -C flags, move ourselves about.  */
-
  if (directories != 0)
    for (i = 0; directories->list[i] != 0; ++i)
      {
@@ -694,11 +700,16 @@ main (argc, argv, envp)
 	    /* This makefile is standard input.  Since we may re-exec
 	       and thus re-read the makefiles, we read standard input
 	       into a temporary file and read from that.  */
-	    static char name[] = "/tmp/GmXXXXXX";
 	    FILE *outfile;

 	    /* Make a unique filename.  */
+#ifdef HAVE_MKTEMP
+	    static char name[] = "/tmp/GmXXXXXX";
 	    (void) mktemp (name);
+#else
+	    static char name[L_tmpnam];
+	    (void) tmpnam ();
+#endif

 	    outfile = fopen (name, "w");
 	    if (outfile == 0)
@@ -747,6 +758,11 @@ main (argc, argv, envp)
  (void) signal (SIGCLD, child_handler);
 #endif

+  /* Let the user send us SIGUSR1 to toggle the -d flag during the run.  */
+#ifdef SIGUSR1
+  (void) signal (SIGUSR1, debug_signal_handler);
+#endif
+
  /* Define the initial list of suffixes for old-style rules.  */

  set_default_suffixes ();
@@ -788,12 +804,8 @@ main (argc, argv, envp)

  define_makeflags (1, 0);

-  ignore_errors_flag |= lookup_file (".IGNORE") != 0;
-
-  silent_flag |= lookup_file (".SILENT") != 0;
-
-  /* Make each `struct dep' point at the
-     `struct file' for the file depended on.  */
+  /* Make each `struct dep' point at the `struct file' for the file
+     depended on.  Also do magic for special targets.  */

  snap_deps ();

@@ -1123,7 +1135,7 @@ main (argc, argv, envp)

 /* Parsing of arguments, decoding of switches.  */

-static char options[sizeof (switches) / sizeof (switches[0]) * 3];
+static char options[1 + sizeof (switches) / sizeof (switches[0]) * 3];
 static struct option long_options[(sizeof (switches) / sizeof (switches[0])) +
 				  (sizeof (long_option_aliases) /
 				   sizeof (long_option_aliases[0]))];
@@ -1141,6 +1153,11 @@ init_switches ()
    return;

  p = options;
+
+  /* Return switch and non-switch args in order, regardless of
+     POSIXLY_CORRECT.  Non-switch args are returned as option 1.  */
+  *p++ = '-';
+
  for (i = 0; switches[i].c != '\0'; ++i)
    {
      long_options[i].name = (switches[i].long_name == 0 ? "" :
@@ -1195,15 +1212,6 @@ decode_switches (argc, argv, env)
  register struct stringlist *sl;
  register int c;

-  if (!env)
-    {
-      other_args = (struct stringlist *) xmalloc (sizeof (struct stringlist));
-      other_args->max = argc + 1;
-      other_args->list = (char **) xmalloc ((argc + 1) * sizeof (char *));
-      other_args->idx = 1;
-      other_args->list[0] = argv[0];
-    }
-
  /* getopt does most of the parsing for us.
     First, get its vectors set up.  */

@@ -1215,10 +1223,65 @@ decode_switches (argc, argv, env)
  /* Reset getopt's state.  */
  optind = 0;

-  while ((c = getopt_long (argc, argv,
-			   options, long_options, (int *) 0)) != EOF)
+  c = 0;
+  while (optind < argc)
    {
-      if (c == '?')
+      if (c == EOF)
+	{
+	  /* There are no more options according to getting getopt, but
+	     there are some arguments left.  Since we have asked for
+	     non-option arguments to be returned in order, I think this
+	     only happens when there is a "--" argument to prevent later
+	     argument from being options.  Since getopt has finished its
+	     job, just update its state variables for the next argument and
+	     set C as if it had returned 1, indicating a non-option
+	     argument.  */
+	  optarg = argv[optind++];
+	  c = 1;
+	}
+      else
+	/* Parse the next argument.  */
+	c = getopt_long (argc, argv, options, long_options, (int *) 0);
+
+      if (c == 1)
+	{
+	  /* Non-option argument.  It might be a variable definition.  */
+	  struct variable *v;
+	  v = try_variable_definition ((char *) 0, 0, optarg, o_command);
+	  if (v != 0)
+	    {
+	      /* It is indeed a variable definition.  Record a pointer to
+		 the variable for later use in define_makeflags.  */
+	      struct command_variable *cv
+		= (struct command_variable *) xmalloc (sizeof (*cv));
+	      cv->variable = v;
+	      cv->next = command_variables;
+	      command_variables = cv;
+	    }
+	  else if (! env)
+	    {
+	      /* Not an option or variable definition; it must be a goal
+		 target!  Enter it as a file and add it to the dep chain of
+		 goals.  */
+	      struct file *f = enter_command_line_file (optarg);
+	      f->cmd_target = 1;
+	  
+	      if (goals == 0)
+		{
+		  goals = (struct dep *) xmalloc (sizeof (struct dep));
+		  lastgoal = goals;
+		}
+	      else
+		{
+		  lastgoal->next
+		    = (struct dep *) xmalloc (sizeof (struct dep));
+		  lastgoal = lastgoal->next;
+		}
+	      lastgoal->name = 0;
+	      lastgoal->file = f;
+	    }
+	}
+      else if (c == '?')
 	/* Bad option.  We will print a usage message and die later.
 	   But continue to parse the other options so the user can
 	   see all he did wrong.  */
@@ -1320,29 +1383,19 @@ positive integral argument",
 	    }
    }

-  if (!env)
-    {
-      /* Collect the remaining args in the `other_args' string list.  */
-
-      while (optind < argc)
-	{
-	  char *arg = argv[optind++];
-	  if (arg[0] != '-' || arg[1] != '\0')
-	    other_args->list[other_args->idx++] = arg;
-	}
-      other_args->list[other_args->idx] = 0;
-    }
-
  if (!env && (bad || print_usage_flag))
    {
      /* Print a nice usage message.  */
+      FILE *usageto;

      if (print_version_flag)
 	print_version ();

-      fprintf (stderr, "Usage: %s [options] [target] ...\n", program);
+      usageto = bad ? stderr : stdout;

-      fputs ("Options:\n", stderr);
+      fprintf (usageto, "Usage: %s [options] [target] ...\n", program);
+
+      fputs ("Options:\n", usageto);
      for (cs = switches; cs->c != '\0'; ++cs)
 	{
 	  char buf[1024], shortarg[50], longarg[50], *p;
@@ -1413,11 +1466,11 @@ positive integral argument",
 	       line with the description, leaving at least two spaces.
 	       Print it on its own line instead.  */
 	    {
-	      fprintf (stderr, "%s\n", buf);
+	      fprintf (usageto, "%s\n", buf);
 	      buf[0] = '\0';
 	    }

-	  fprintf (stderr, "%*s%s.\n",
+	  fprintf (usageto, "%*s%s.\n",
 		   - DESCRIPTION_COLUMN,
 		   buf, cs->description);
 	}
@@ -1437,7 +1490,7 @@ decode_env_switches (envar, len)
     unsigned int len;
 {
  char *varref = (char *) alloca (2 + len + 2);
-  char *value, *args;
+  char *value, *p;
  int argc;
  char **argv;

@@ -1455,37 +1508,95 @@ decode_env_switches (envar, len)
  if (len == 0)
    return;

-  /* Make a copy of the value in ARGS, where we will munge it.
-     If it does not begin with a dash, prepend one.
-     We must allocate lasting storage for this (and we never free it) because
-     decode_switches may save pointers into it for string-valued switches.  */
-  args = (char *) xmalloc (1 + len + 2);
-  if (value[0] != '-')
-    args[0] = '-';
-  bcopy (value, value[0] == '-' ? args : &args[1], len + 1);
-  /* Write an extra null terminator so our loop below will
-     never be in danger of looking past the end of the string.  */
-  args[(value[0] == '-' ? 0 : 1) + len + 1] = '\0';
-
  /* Allocate a vector that is definitely big enough.  */
  argv = (char **) alloca ((1 + len + 1) * sizeof (char *));

+  /* Allocate a buffer to copy the value into while we split it into words
+     and unquote it.  We must use permanent storage for this because
+     decode_switches may store pointers into the passed argument words.  */
+  p = (char *) xmalloc (2 * len);
+
  /* getopt will look at the arguments starting at ARGV[1].
     Prepend a spacer word.  */
  argv[0] = 0;
  argc = 1;
-  do
+  argv[argc] = p;
+  while (*value != '\0')
    {
-      argv[argc++] = args;
-      args = end_of_token (args);
-      *args++ = '\0';
-    } while (*args != '\0');
-  argv[argc] = 0;
+      if (*value == '\\')
+	++value;		/* Skip the backslash.  */
+      else if (isblank (*value))
+	{
+	  /* End of the word.  */
+	  *p++ = '\0';
+	  argv[++argc] = p;
+	  do
+	    ++value;
+	  while (isblank (*value));
+	  continue;
+	}
+      *p++ = *value++;
+    }
+  *p = '\0';
+  argv[++argc] = 0;
+
+  if (argc == 2 && argv[1][0] != '-')
+    {
+      /* There is just one word in the value, and it is not a switch.
+	 Either this is the single-word form and we should prepend a dash
+	 before calling decode_switches, or this is the multi-word form and
+	 there is no dash because it is a variable definition.  */
+      struct variable *v;
+      v = try_variable_definition ((char *) 0, 0, argv[1], o_command);
+      if (v != 0)
+	{
+	  /* It was indeed a variable definition, and now it has been
+	     processed.  There is nothing for decode_switches to do.
+	     Record a pointer to the variable for later use in
+	     define_makeflags.  */
+	  struct command_variable *cv
+	    = (struct command_variable *) xmalloc (sizeof (*cv));
+	  cv->variable = v;
+	  cv->next = command_variables;
+	  command_variables = cv;
+	  return;
+	}
+
+      /* It wasn't a variable definition, so it's some switches without a
+	 leading dash.  Add one and pass it along to decode_switches.  We
+	 need permanent storage for this in case decode_switches saves
+	 pointers into the value.  */
+      argv[1] = concat ("-", argv[1], "");
+    }

  /* Parse those words.  */
  decode_switches (argc, argv, 1);
 }

+/* Quote the string IN so that it will be interpreted as a single word with
+   no magic by the shell; if DOUBLE_DOLLARS is nonzero, also double dollar
+   signs to avoid variable expansion in make itself.  Write the result into
+   OUT, returning the address of the next character to be written.
+   Allocating space for OUT twice the length of IN (thrice if
+   DOUBLE_DOLLARS is nonzero) is always sufficient.  */
+
+static char *
+quote_as_word (out, in, double_dollars)
+     char *out, *in;
+     int double_dollars;
+{
+  while (*in != '\0')
+    {
+      if (index ("^;'\"*?[]$<>(){}|&~`\\ \t\r\n\f\v", *in) != 0)
+	*out++ = '\\';
+      if (double_dollars && *in == '$')
+	*out++ = '$';
+      *out++ = *in++;
+    }
+
+  return out;
+}
+
 /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
   command switches.  Include options with args if ALL is nonzero.
   Don't include options with the `no_makefile' flag set if MAKEFILE.  */
@@ -1494,8 +1605,12 @@ static void
 define_makeflags (all, makefile)
     int all, makefile;
 {
+  static const char ref[] = "$(MAKEOVERRIDES)";
+  static const char posixref[] = "$(-*-command-variables-*-)";
  register const struct command_switch *cs;
  char *flagstring;
+  register char *p;
+  unsigned int words;
  struct variable *v;

  /* We will construct a linked list of `struct flag's describing
@@ -1508,7 +1623,6 @@ define_makeflags (all, makefile)
      struct flag *next;
      const struct command_switch *cs;
      char *arg;
-      unsigned int arglen;
    };
  struct flag *flags = 0;
  unsigned int flagslen = 0;
@@ -1517,13 +1631,12 @@ define_makeflags (all, makefile)
    struct flag *new = (struct flag *) alloca (sizeof (struct flag));	      \
    new->cs = cs;							      \
    new->arg = (ARG);							      \
-    new->arglen = (LEN);						      \
    new->next = flags;							      \
    flags = new;							      \
    if (new->arg == 0)							      \
      ++flagslen;		/* Just a single flag letter.  */	      \
    else								      \
-      flagslen += 1 + 1 + 1 + 1 + new->arglen; /* " -x foo" */		      \
+      flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */		      \
    if (!isalnum (cs->c))						      \
      /* This switch has no single-letter version, so we use the long.  */    \
      flagslen += 2 + strlen (cs->long_name);				      \
@@ -1607,79 +1720,114 @@ define_makeflags (all, makefile)
 	  break;
 	}

+  flagslen += 4 + sizeof posixref; /* Four more for the possible " -- ".  */
+
 #undef	ADD_FLAG

-  if (flags == 0)
-    /* No flags.  Use a string of two nulls so [1] works below.  */
-    flagstring = "\0";
-  else
+  /* Construct the value in FLAGSTRING.
+     We allocate enough space for a preceding dash and trailing null.  */
+  flagstring = (char *) alloca (1 + flagslen + 1);
+  p = flagstring;
+  words = 1;
+  *p++ = '-';
+  while (flags != 0)
    {
-      /* Construct the value in FLAGSTRING.
-	 We allocate enough space for a preceding dash and trailing null.  */
-      register char *p;
-      flagstring = (char *) alloca (1 + flagslen + 1);
-      p = flagstring;
-      *p++ = '-';
-      do
+      /* Add the flag letter or name to the string.  */
+      if (!isalnum (flags->cs->c))
 	{
-	  /* Add the flag letter or name to the string.  */
-	  if (!isalnum (flags->cs->c))
+	  *p++ = '-';
+	  strcpy (p, flags->cs->long_name);
+	  p += strlen (p);
+	}
+      else
+	*p++ = flags->cs->c;
+      if (flags->arg != 0)
+	{
+	  /* A flag that takes an optional argument which in this case is
+	     omitted is specified by ARG being "".  We must distinguish
+	     because a following flag appended without an intervening " -"
+	     is considered the arg for the first.  */
+	  if (flags->arg[0] != '\0')
 	    {
-	      *p++ = '-';
-	      strcpy (p, flags->cs->long_name);
-	      p += strlen (p);
+	      /* Add its argument too.  */
+	      *p++ = !isalnum (flags->cs->c) ? '=' : ' ';
+	      p = quote_as_word (p, flags->arg, 1);
 	    }
-	  else
-	    *p++ = flags->cs->c;
-	  if (flags->arg != 0)
-	    {
-	      /* A flag that takes an optional argument which in this case
-		 is omitted is specified by ARG being "" and ARGLEN being 0.
-		 We must distinguish because a following flag appended without
-		 an intervening " -" is considered the arg for the first.  */
-	      if (flags->arglen > 0)
-		{
-		  /* Add its argument too.  */
-		  *p++ = !isalnum (flags->cs->c) ? '=' : ' ';
-		  bcopy (flags->arg, p, flags->arglen);
-		  p += flags->arglen;
-		}
-	      /* Write a following space and dash, for the next flag.  */
-	      *p++ = ' ';
-	      *p++ = '-';
-	    }
-	  else if (!isalnum (flags->cs->c))
-	    {
-	      /* Long options must each go in their own word,
-		 so we write the following space and dash.  */
-	      *p++ = ' ';
-	      *p++ = '-';
-	    }
-	  flags = flags->next;
-	} while (flags != 0);
-
-      if (p[-1] == '-')
-	/* Kill the final space and dash.  */
-	p -= 2;
-
-      /* Terminate the string.  */
-      *p = '\0';
+	  ++words;
+	  /* Write a following space and dash, for the next flag.  */
+	  *p++ = ' ';
+	  *p++ = '-';
+	}
+      else if (!isalnum (flags->cs->c))
+	{
+	  ++words;
+	  /* Long options must each go in their own word,
+	     so we write the following space and dash.  */
+	  *p++ = ' ';
+	  *p++ = '-';
+	}
+      flags = flags->next;
    }

+  if (all && command_variables != 0)
+    {
+      /* Now write a reference to $(MAKEOVERRIDES), which contains all the
+	 command-line variable definitions.  */
+
+      if (p == &flagstring[1])
+	/* No flags written, so elide the leading dash already written.  */
+	p = flagstring;
+      else
+	{
+	  /* Separate the variables from the switches with a "--" arg.  */
+	  if (p[-1] != '-')
+	    {
+	      /* We did not already write a trailing " -".  */
+	      *p++ = ' ';
+	      *p++ = '-';
+	    }
+	  /* There is a trailing " -"; fill it out to " -- ".  */
+	  *p++ = '-';
+	  *p++ = ' ';
+	}
+
+      /* Copy in the string.  */
+      if (posix_pedantic)
+	{
+	  bcopy (posixref, p, sizeof posixref - 1);
+	  p += sizeof posixref - 1;
+	}
+      else
+	{
+	  bcopy (ref, p, sizeof ref - 1);
+	  p += sizeof ref - 1;
+	}
+    }
+  else if (p == &flagstring[1])
+    {
+      words = 0;
+      --p;
+    }
+  else if (p[-1] == '-')
+    /* Kill the final space and dash.  */
+    p -= 2;
+  /* Terminate the string.  */
+  *p = '\0';
+
  v = define_variable ("MAKEFLAGS", 9,
-		       /* On Sun, the value of MFLAGS starts with a `-' but
-			  the value of MAKEFLAGS lacks the `-'.
-			  Be compatible with this unless FLAGSTRING starts
-			  with a long option `--foo', since removing the
-			  first dash would result in the bogus `-foo'.  */
-		       flagstring[1] == '-' ? flagstring : &flagstring[1],
+		       /* If there is just a single word of switches,
+			  omit the leading dash unless it is a single
+			  long option with two leading dashes.  */
+		       &flagstring[(words == 1 && command_variables == 0
+				    && flagstring[1] != '-')
+				   ? 1 : 0],
 		       /* This used to use o_env, but that lost when a
 			  makefile defined MAKEFLAGS.  Makefiles set
 			  MAKEFLAGS to add switches, but we still want
 			  to redefine its value with the full set of
 			  switches.  Of course, an override or command
 			  definition will still take precedence.  */
-		       o_file, 0);
+		       o_file, 1);
  if (! all)
    /* The first time we are called, set MAKEFLAGS to always be exported.
       We should not do this again on the second call, because that is
@@ -1687,7 +1835,7 @@ define_makeflags (all, makefile)
    v->export = v_export;
  /* Since MFLAGS is not parsed for flags, there is no reason to
     override any makefile redefinition.  */
-  (void) define_variable ("MFLAGS", 6, flagstring, o_env, 0);
+  (void) define_variable ("MFLAGS", 6, flagstring, o_env, 1);
 }

 /* Print version information.  */
@@ -1755,6 +1903,13 @@ die (status)

      dying = 1;

+      /* Try to move back to the original directory.  This is essential on
+	 MS-DOS (where there is really only one process), and on Unix it
+	 puts core files in the original directory instead of the -C
+	 directory.  */
+      if (directory_before_chdir != 0)
+	chdir (directory_before_chdir);
+
      if (print_version_flag)
 	print_version ();

--- a/make-stds.texi
+++ b/make-stds.texi
@@ -32,6 +32,20 @@ to avoid trouble on systems where the @code{SHELL} variable might be
 inherited from the environment.  (This is never a problem with GNU
@code{make}.)

+Different @code{make} programs have incompatible suffix lists and
+implicit rules, and this sometimes creates confusion or misbehavior.  So
+it is a good idea to set the suffix list explicitly using only the
+suffixes you need in the particular Makefile, like this:
+
+@example
+.SUFFIXES:
+.SUFFIXES: .c .o
+@end example
+
+@noindent
+The first line clears out the suffix list, the second introduces all
+suffixes which may be subject to implicit rules in this Makefile.
+
 Don't assume that @file{.} is in the path for command execution.  When
 you need to run programs that are a part of your package during the
 make, please make sure that it uses @file{./} if the program is built as
@@ -43,33 +57,34 @@ The distinction between @file{./} and @file{$(srcdir)/} is important
 when using the @samp{--srcdir} option to @file{configure}.  A rule of
 the form:

-@example
+@smallexample
 foo.1 : foo.man sedscript
        sed -e sedscript foo.man > foo.1
-@end example
+@end smallexample

@noindent
 will fail when the current directory is not the source directory,
 because @file{foo.man} and @file{sedscript} are not in the current
 directory.

-Relying on @samp{VPATH} to find the source file will work in the case
-where there is a single dependency file, since the @file{make} automatic
-variable @samp{$<} will represent the source file wherever it is.  A
-makefile target like
+When using GNU @code{make}, relying on @samp{VPATH} to find the source
+file will work in the case where there is a single dependency file,
+since the @file{make} automatic variable @samp{$<} will represent the
+source file wherever it is.  (Many versions of @code{make} set @samp{$<}
+only in implicit rules.)  A makefile target like

-@example
+@smallexample
 foo.o : bar.c
-        $(CC) $(CFLAGS) -I. -I$(srcdir) -c bar.c -o foo.o
-@end example
+        $(CC) -I. -I$(srcdir) $(CFLAGS) -c bar.c -o foo.o
+@end smallexample

@noindent
 should instead be written as

-@example
+@smallexample
 foo.o : bar.c
-        $(CC) $(CFLAGS) $< -o $@@
-@end example
+        $(CC) -I. -I$(srcdir) $(CFLAGS) -c $< -o $@@
+@end smallexample

@noindent
 in order to allow @samp{VPATH} to work correctly.  When the target has
@@ -77,10 +92,10 @@ multiple dependencies, using an explicit @samp{$(srcdir)} is the easiest
 way to make the rule work well.  For example, the target above for
@file{foo.1} is best written as:

-@example
+@smallexample
 foo.1 : foo.man sedscript
-        sed -s $(srcdir)/sedscript $(srcdir)/foo.man > foo.1
-@end example
+        sed -e $(srcdir)/sedscript $(srcdir)/foo.man > $@@
+@end smallexample

@node Utilities in Makefiles
@section Utilities in Makefiles
@@ -107,12 +122,21 @@ user can substitute alternatives.  Here are some of the programs we
 mean:

@example
-ar bison cc flex install ld lex make ranlib yacc
+ar bison cc flex install ld lex
+make makeinfo ranlib texi2dvi yacc
@end example

-When you use @code{ranlib}, you should test whether it exists, and run
-it only if it exists, so that the distribution will work on systems that
-don't have @code{ranlib}.
+Use the following @code{make} variables:
+
+@example
+$(AR) $(BISON) $(CC) $(FLEX) $(INSTALL) $(LD) $(LEX)
+$(MAKE) $(MAKEINFO) $(RANLIB) $(TEXI2DVI) $(YACC)
+@end example
+
+When you use @code{ranlib}, you should make sure nothing bad happens if
+the system does not have @code{ranlib}.  Arrange to ignore an error
+from that command, and print a message before the command to tell the
+user that failure of the @code{ranlib} command does not mean a problem.

 If you use symbolic links, you should implement a fallback for systems
 that don't have symbolic links.
@@ -129,29 +153,70 @@ All GNU programs should have the following targets in their Makefiles:
@table @samp
@item all
 Compile the entire program.  This should be the default target.  This
-target need not rebuild any documentation files; info files should
+target need not rebuild any documentation files; Info files should
 normally be included in the distribution, and DVI files should be made
 only when explicitly asked for.

@item install
 Compile the program and copy the executables, libraries, and so on to
 the file names where they should reside for actual use.  If there is a
-simple test to verify that a program is properly installed then run that
-test.
+simple test to verify that a program is properly installed, this target
+should run that test.
+
+If possible, write the @code{install} target rule so that it does not
+modify anything in the directory where the program was built, provided
+@samp{make all} has just been done.  This is convenient for building the
+program under one user name and installing it under another.
+
+The commands should create all the directories in which files are to be
+installed, if they don't already exist.  This includes the directories
+specified as the values of the variables @code{prefix} and
+@code{exec_prefix}, as well as all subdirectories that are needed.
+One way to do this is by means of an @code{installdirs} target
+as described below.

 Use @samp{-} before any command for installing a man page, so that
@code{make} will ignore any errors.  This is in case there are systems
 that don't have the Unix man page documentation system installed.

-In the future, when we have a standard way of installing info files,
-@samp{install} targets will be the proper place to do so.
+The way to install Info files is to copy them into @file{$(infodir)}
+with @code{$(INSTALL_DATA)} (@pxref{Command Variables}), and then run
+the @code{install-info} program if it is present.  @code{install-info}
+is a script that edits the Info @file{dir} file to add or update the
+menu entry for the given Info file; it will be part of the Texinfo package.
+Here is a sample rule to install an Info file:
+
+@comment This example has been carefully formatted for the Make manual.
+@comment Please do not reformat it without talking to roland@gnu.ai.mit.edu.
+@smallexample
+$(infodir)/foo.info: foo.info
+# There may be a newer info file in . than in srcdir.
+        -if test -f foo.info; then d=.; \
+         else d=$(srcdir); fi; \
+        $(INSTALL_DATA) $$d/foo.info $@@; \
+# Run install-info only if it exists.
+# Use `if' instead of just prepending `-' to the
+# line so we notice real errors from install-info.
+# We use `$(SHELL) -c' because some shells do not
+# fail gracefully when there is an unknown command.
+        if $(SHELL) -c 'install-info --version' \
+           >/dev/null 2>&1; then \
+          install-info --infodir=$(infodir) $$d/foo.info; \
+        else true; fi
+@end smallexample

@item uninstall
 Delete all the installed files that the @samp{install} target would
 create (but not the noninstalled files such as @samp{make all} would
 create).

+This rule should not modify the directories where compilation is done,
+only the directories where files are installed.
+
+@comment The gratuitous blank line here is to make the table look better
+@comment in the printed Make manual.  Please leave it in.
@item clean
+
 Delete all files from the current directory that are normally created by
 building the program.  Don't delete the files that record the
 configuration.  Also preserve files that could be made by building, but
@@ -171,50 +236,68 @@ normally don't want to recompile.  For example, the @samp{mostlyclean}
 target for GCC does not delete @file{libgcc.a}, because recompiling it
 is rarely necessary and takes a lot of time.

-@item realclean
-Delete everything from the current directory that can be reconstructed
-with this Makefile.  This typically includes everything deleted by
-distclean, plus more: C source files produced by Bison, tags tables,
-info files, and so on.
+@item maintainer-clean
+Delete almost everything from the current directory that can be
+reconstructed with this Makefile.  This typically includes everything
+deleted by @code{distclean}, plus more: C source files produced by
+Bison, tags tables, Info files, and so on.

-One exception, however: @samp{make realclean} should not delete
-@file{configure} even if @file{configure} can be remade using a rule in
-the Makefile.  More generally, @samp{make realclean} should not delete
-anything that needs to exist in order to run @file{configure}
-and then begin to build the program.
+The reason we say ``almost everything'' is that @samp{make
+maintainer-clean} should not delete @file{configure} even if
+@file{configure} can be remade using a rule in the Makefile.  More
+generally, @samp{make maintainer-clean} should not delete anything that
+needs to exist in order to run @file{configure} and then begin to build
+the program.  This is the only exception; @code{maintainer-clean} should
+delete everything else that can be rebuilt.
+
+The @samp{maintainer-clean} is intended to be used by a maintainer of
+the package, not by ordinary users.  You may need special tools to
+reconstruct some of the files that @samp{make maintainer-clean} deletes.
+Since these files are normally included in the distribution, we don't
+take care to make them easy to reconstruct.  If you find you need to
+unpack the full distribution again, don't blame us.
+
+To help make users aware of this, the commands for
+@code{maintainer-clean} should start with these two:
+
+@example
+@@echo "This command is intended for maintainers to use;"
+@@echo "it deletes files that may require special tools to rebuild."
+@end example

@item TAGS
 Update a tags table for this program.

@item info
-Generate any info files needed.  The best way to write the rules is as
+Generate any Info files needed.  The best way to write the rules is as
 follows:

-@example
-info:  foo.info
+@smallexample
+info: foo.info

-foo.info: $(srcdir)/foo.texi $(srcdir)/chap1.texi $(srcdir)/chap2.texi
+foo.info: foo.texi chap1.texi chap2.texi
        $(MAKEINFO) $(srcdir)/foo.texi
-@end example
+@end smallexample

@noindent
-You must define the variable @code{MAKEINFO} in the Makefile.
-It should run the Makeinfo program, which is part of the Texinfo2 distribution.
+You must define the variable @code{MAKEINFO} in the Makefile.  It should
+run the @code{makeinfo} program, which is part of the Texinfo
+distribution.

@item dvi
 Generate DVI files for all TeXinfo documentation.  
 For example:

-@example
+@smallexample
 dvi: foo.dvi

-foo.dvi: $(srcdir)/foo.texi $(srcdir)/chap1.texi $(srcdir)/chap2.texi
+foo.dvi: foo.texi chap1.texi chap2.texi
        $(TEXI2DVI) $(srcdir)/foo.texi
-@end example
+@end smallexample

@noindent
 You must define the variable @code{TEXI2DVI} in the Makefile.  It should
-run the program @code{texi2dvi}, which is part of the Texinfo2
+run the program @code{texi2dvi}, which is part of the Texinfo
 distribution.  Alternatively, write just the dependencies, and allow GNU
 Make to provide the command.

@@ -243,6 +326,37 @@ the self-tests so that they work when the program is built but not
 installed.
@end table

+The following targets are suggested as conventional names, for programs
+in which they are useful.
+
+@table @code
+@item installcheck
+Perform installation tests (if any).  The user must build and install
+the program before running the tests.  You should not assume that
+@file{$(bindir)} is in the search path.  
+
+@item installdirs
+It's useful to add a target named @samp{installdirs} to create the
+directories where files are installed, and their parent directories.
+There is a script called @file{mkinstalldirs} which is convenient for
+this; find it in the Texinfo package.@c It's in /gd/gnu/lib/mkinstalldirs.
+You can use a rule like this:
+
+@comment This has been carefully formatted to look decent in the Make manual.
+@comment Please be sure not to make it extend any further to the right.--roland
+@smallexample
+# Make sure all installation directories (e.g. $(bindir))
+# actually exist by making them if necessary.
+installdirs: mkinstalldirs
+        $(srcdir)/mkinstalldirs $(bindir) $(datadir) \
+                                $(libdir) $(infodir) \
+                                $(mandir)
+@end smallexample
+
+This rule should not modify the directories where compilation is done.
+It should do nothing but create installation directories.
+@end table
+
@node Command Variables
@section Variables for Specifying Commands

@@ -274,12 +388,12 @@ Instead, arrange to pass the necessary options to the C compiler
 independently of @code{CFLAGS}, by writing them explicitly in the
 compilation commands or by defining an implicit rule, like this:

-@example
+@smallexample
 CFLAGS = -g
-ALL_CFLAGS = $(CFLAGS) -I.
+ALL_CFLAGS = -I. $(CFLAGS)
 .c.o:
-        $(CC) -c $(ALL_CFLAGS) $(CPPFLAGS) $<
-@end example
+        $(CC) -c $(CPPFLAGS) $(ALL_CFLAGS) $<
+@end smallexample

 Do include the @samp{-g} option in @code{CFLAGS}, because that is not
@emph{required} for proper compilation.  You can consider it a default
@@ -287,11 +401,15 @@ that is only recommended.  If the package is set up so that it is
 compiled with GCC by default, then you might as well include @samp{-O}
 in the default value of @code{CFLAGS} as well.

+Put @code{CFLAGS} last in the compilation command, after other variables
+containing compiler options, so the user can use @code{CFLAGS} to
+override the others.
+
 Every Makefile should define the variable @code{INSTALL}, which is the
 basic command for installing a file into the system.

-Every Makefile should also define variables @code{INSTALL_PROGRAM} and
-@code{INSTALL_DATA}.  (The default for each of these should be
+Every Makefile should also define the variables @code{INSTALL_PROGRAM}
+and @code{INSTALL_DATA}.  (The default for each of these should be
@code{$(INSTALL)}.)  Then it should use those variables as the commands
 for actual installation, for executables and nonexecutables
 respectively.  Use these variables as follows:
@@ -311,48 +429,123 @@ installed.

 Installation directories should always be named by variables, so it is
 easy to install in a nonstandard place.  The standard names for these
-variables are:
+variables are described below.  They are based on a standard filesystem
+layout; variants of it are used in SVR4, 4.4BSD, Linux, Ultrix v4, and
+other modern operating systems.
+
+These two variables set the root for the installation.  All the other
+installation directories should be subdirectories of one of these two,
+and nothing should be directly installed into these two directories.

@table @samp
@item prefix
 A prefix used in constructing the default values of the variables listed
 below.  The default value of @code{prefix} should be @file{/usr/local}
-(at least for now).
+When building the complete GNU system, the prefix will be empty and
+@file{/usr} will be a symbolic link to @file{/}.

@item exec_prefix
-A prefix used in constructing the default values of the some of the
+A prefix used in constructing the default values of some of the
 variables listed below.  The default value of @code{exec_prefix} should
 be @code{$(prefix)}.

 Generally, @code{$(exec_prefix)} is used for directories that contain
 machine-specific files (such as executables and subroutine libraries),
 while @code{$(prefix)} is used directly for other directories.
+@end table

+Executable programs are installed in one of the following directories.
+
+@table @samp
@item bindir
 The directory for installing executable programs that users can run.
 This should normally be @file{/usr/local/bin}, but write it as
@file{$(exec_prefix)/bin}.

+@item sbindir
+The directory for installing executable programs that can be run from
+the shell, but are only generally useful to system administrators.  This
+should normally be @file{/usr/local/sbin}, but write it as
+@file{$(exec_prefix)/sbin}.
+
+@item libexecdir
+@comment This paragraph adjusted to avoid overfull hbox --roland 5jul94
+The directory for installing executable programs to be run by other
+programs rather than by users.  This directory should normally be
+@file{/usr/local/libexec}, but write it as @file{$(exec_prefix)/libexec}.
+@end table
+
+Data files used by the program during its execution are divided into
+categories in two ways.
+
+@itemize @bullet
+@item
+Some files are normally modified by programs; others are never normally
+modified (though users may edit some of these).
+
+@item
+Some files are architecture-independent and can be shared by all
+machines at a site; some are architecture-dependent and can be shared
+only by machines of the same kind and operating system; others may never
+be shared between two machines.
+@end itemize
+
+This makes for six different possibilities.  However, we want to
+discourage the use of architecture-dependent files, aside from of object
+files and libraries.  It is much cleaner to make other data files
+architecture-independent, and it is generally not hard.
+
+Therefore, here are the variables makefiles should use to specify
+directories:
+
+@table @samp
+@item datadir
+The directory for installing read-only architecture independent data
+files.  This should normally be @file{/usr/local/share}, but write it as
+@file{$(prefix)/share}.  As a special exception, see @file{$(infodir)}
+and @file{$(includedir)} below.
+
+@item sysconfdir
+The directory for installing read-only data files that pertain to a
+single machine--that is to say, files for configuring a host.  Mailer
+and network configuration files, @file{/etc/passwd}, and so forth belong
+here.  All the files in this directory should be ordinary ASCII text
+files.  This directory should normally be @file{/usr/local/etc}, but
+write it as @file{$(prefix)/etc}.
+
+@c rewritten to avoid overfull hbox --tower
+Do not install executables
+@c here
+in this directory (they probably
+belong in @file{$(libexecdir)} or @file{$(sbindir))}.  Also do not
+install files that are modified in the normal course of their use
+(programs whose purpose is to change the configuration of the system
+excluded).  Those probably belong in @file{$(localstatedir)}.
+
+@item sharedstatedir
+The directory for installing architecture-independent data files which
+the programs modify while they run.  This should normally be
+@file{/usr/local/com}, but write it as @file{$(prefix)/com}.
+
+@item localstatedir
+The directory for installing data files which the programs modify while
+they run, and that pertain to one specific machine.  Users should never
+need to modify files in this directory to configure the package's
+operation; put such configuration information in separate files that go
+in @file{datadir} or @file{$(sysconfdir)}.  @file{$(localstatedir)}
+should normally be @file{/usr/local/var}, but write it as
+@file{$(prefix)/var}.
+
@item libdir
-The directory for installing executable files to be run by the program
-rather than by users.  Object files and libraries of object code should
-also go in this directory.  The idea is that this directory is used for
-files that pertain to a specific machine architecture, but need not be
-in the path for commands.  The value of @code{libdir} should normally be
+The directory for object files and libraries of object code.  Do not
+install executables here, they probably belong in @file{$(libexecdir)}
+instead.  The value of @code{libdir} should normally be
@file{/usr/local/lib}, but write it as @file{$(exec_prefix)/lib}.

-@item datadir
-The directory for installing read-only data files which the programs
-refer to while they run.  This directory is used for files which are
-independent of the type of machine being used.  This should normally be
-@file{/usr/local/lib}, but write it as @file{$(prefix)/lib}.
-
-@item statedir
-The directory for installing data files which the programs modify while
-they run.  These files should be independent of the type of machine
-being used, and it should be possible to share them among machines at a
-network installation.  This should normally be @file{/usr/local/lib},
-but write it as @file{$(prefix)/lib}.
+@item infodir
+The directory for installing the Info files for this package.  By
+default, it should be @file{/usr/local/info}, but it should be written
+as @file{$(prefix)/info}.

@item includedir
@c rewritten to avoid overfull hbox --roland
@@ -384,14 +577,19 @@ file in the @code{oldincludedir} directory if either (1) there is no
@file{foo.h} there or (2) the @file{foo.h} that exists came from the Foo
 package.

-The way to tell whether @file{foo.h} came from the Foo package is to put
-a magic string in the file---part of a comment---and grep for that
-string.
+To tell whether @file{foo.h} came from the Foo package, put a magic
+string in the file---part of a comment---and grep for that string.
+@end table

+Unix-style man pages are installed in one of the following:
+
+@table @samp
@item mandir
 The directory for installing the man pages (if any) for this package.
 It should include the suffix for the proper section of the
-manual---usually @samp{1} for a utility.
+manual---usually @samp{1} for a utility.  It will normally be
+@file{/usr/local/man/man1}, but you should write it as
+@file{$(prefix)/man/man1}. 

@item man1dir
 The directory for installing section 1 man pages.
@@ -408,13 +606,20 @@ application only.}

@item manext
 The file name extension for the installed man page.  This should contain
-a period followed by the appropriate digit.
+a period followed by the appropriate digit; it should normally be @samp{.1}.

-@item infodir
-The directory for installing the info files for this package.  By
-default, it should be @file{/usr/local/info}, but it should be written
-as @file{$(prefix)/info}.
+@item man1ext
+The file name extension for installed section 1 man pages.
+@item man2ext
+The file name extension for installed section 2 man pages.
+@item @dots{}
+Use these names instead of @samp{manext} if the package needs to install man
+pages in more than one section of the manual.
+@end table

+And finally, you should set the following variable:
+
+@table @samp
@item srcdir
 The directory for the sources being compiled.  The value of this
 variable is normally inserted by the @code{configure} shell script.
@@ -422,7 +627,7 @@ variable is normally inserted by the @code{configure} shell script.

 For example:

-@example
+@smallexample
@c I have changed some of the comments here slightly to fix an overfull
@c hbox, so the make manual can format correctly. --roland
 # Common prefix for installation directories.
@@ -432,10 +637,10 @@ exec_prefix = $(prefix)
 # Where to put the executable for the command `gcc'.
 bindir = $(exec_prefix)/bin
 # Where to put the directories used by the compiler.
-libdir = $(exec_prefix)/lib
+libexecdir = $(exec_prefix)/libexec
 # Where to put the Info files.
 infodir = $(prefix)/info
-@end example
+@end smallexample

 If your program installs a large number of files into one of the
 standard user-specified directories, it might be useful to group them
--- a/make.h
+++ b/make.h
@@ -1,5 +1,5 @@
 /* Miscellaneous global declarations and portability cruft for GNU Make.
-Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -67,7 +67,7 @@ extern int errno;
 #endif

 /* Some systems define _POSIX_VERSION but are not really POSIX.1.  */
-#if (defined (butterfly) || \
+#if (defined (butterfly) || defined (__arm) || \
     (defined (__mips) && defined (_SYSTYPE_SVR3)) || \
     (defined (sequent) && defined (i386)))
 #undef POSIX
@@ -173,7 +173,6 @@ extern unsigned int get_path_max ();
 extern char *malloc (), *realloc ();
 extern void free ();

-extern void qsort ();
 extern void abort (), exit ();

 #endif	/* Standard headers.  */
@@ -252,6 +251,12 @@ extern char *alloca ();
 #define	ENUM_BITFIELD(bits)
 #endif

+#ifdef __MSDOS__
+#define PATH_SEPARATOR_CHAR ';'
+#else
+#define PATH_SEPARATOR_CHAR ':'
+#endif
+
 extern void die ();
 extern void message (), fatal (), error ();
 extern void makefile_error (), makefile_fatal ();
@@ -299,17 +304,12 @@ extern void user_access (), make_access (), child_access ();
 #include <vfork.h>
 #endif

-#if !defined (__GNU_LIBRARY__) && !defined (POSIX)
+/* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
+   because such systems often declare the in header files anyway.  */
+
+#if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION)

-#ifdef	HAVE_SIGSETMASK
-extern int sigsetmask ();
-extern int sigblock ();
-#endif
-extern int kill ();
-extern int atoi ();
 extern long int atol ();
-extern int unlink (), stat (), fstat ();
-extern int pipe (), close (), read (), write (), open ();
 extern long int lseek ();

 #endif	/* Not GNU C library or POSIX.  */
@@ -330,6 +330,7 @@ extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
 extern int debug_flag, print_data_base_flag, question_flag, touch_flag;
 extern int env_overrides, no_builtin_rules_flag, print_version_flag;
 extern int print_directory_flag, warn_undefined_variables_flag;
+extern int posix_pedantic;

 extern unsigned int job_slots;
 extern double max_load_average;
--- a/make.texinfo
+++ b/make.texinfo
@@ -8,10 +8,11 @@
@c FSF publishers: format makebook.texi instead of using this file directly.

@set RCSID $Id$
-@set EDITION 0.45
-@set VERSION 3.71 Beta
-@set UPDATED 11 May 1994
-@set UPDATE-MONTH May 1994
+@set EDITION 0.47
+@set VERSION 3.72 Beta
+@set UPDATED 1 November 1994
+@set UPDATE-MONTH November 1994
+@set ISBN 1-882114-50-7

@c finalout

@@ -71,7 +72,7 @@ Published by the Free Software Foundation @*
 675 Massachusetts Avenue, @*
 Cambridge, MA 02139 USA @*
 Printed copies are available for $20 each. @*
-ISBN 1-882114-16-7 @*
+ISBN @value{ISBN} @*

 Permission is granted to make and distribute verbatim copies of
 this manual provided the copyright notice and this permission notice
@@ -2140,24 +2141,28 @@ match that file's name.
@findex .IGNORE
@item .IGNORE

-Simply by being mentioned as a target, @code{.IGNORE} says to ignore
-errors in execution of commands.  The dependencies and commands for
-@code{.IGNORE} are not meaningful.
+If you specify dependencies for @code{.IGNORE}, then @code{make} will
+ignore errors in execution of the commands run for those particular
+files.  The commands for @code{.IGNORE} are not meaningful.

-@samp{.IGNORE} exists for historical compatibility.  Since
-@code{.IGNORE} affects every command in the makefile, it is not very
-useful; we recommend you use the more selective ways to ignore errors
-in specific commands.  @xref{Errors, ,Errors in Commands}.
+If mentioned as a target with no dependencies, @code{.IGNORE} says to
+ignore errors in execution of commands for all files.  This usage of
+@samp{.IGNORE} is supported only for historical compatibility.  Since
+this affects every command in the makefile, it is not very useful; we
+recommend you use the more selective ways to ignore errors in specific
+commands.  @xref{Errors, ,Errors in Commands}.

@findex .SILENT
@item .SILENT

-Simply by being mentioned as a target, @code{.SILENT} says not to
-print commands before executing them.  The dependencies and commands
-for @code{.SILENT} are not meaningful.
+If you specify dependencies for @code{.SILENT}, then @code{make} will
+not the print commands to remake those particular files before executing
+them.  The commands for @code{.SILENT} are not meaningful.

-@samp{.SILENT} exists for historical compatibility.  We recommend you
-use the more selective ways to silence specific commands.
+If mentioned as a target with no dependencies, @code{.SILENT} says not
+to print any commands before executing them.  This usage of
+@samp{.SILENT} is supported only for historical compatibility.  We
+recommend you use the more selective ways to silence specific commands.
@xref{Echoing, ,Command Echoing}.  If you want to silence all commands
 for a particular run of @code{make}, use the @samp{-s} or
@w{@samp{--silent}} option (@pxref{Options Summary}).
@@ -2581,7 +2586,8 @@ called @file{@var{name}.d} from a C source file called @file{@var{name}.c}:
@example
@group
 %.d: %.c
-        $(SHELL) -ec '$(CC) -M $(CPPFLAGS) $< | sed '\''s/$*.o/& $@@/g'\'' > $@@'
+        $(SHELL) -ec '$(CC) -M $(CPPFLAGS) $< \
+                      | sed '\''s/$*\\.o[ :]*/& $@@/g'\'' > $@@'
@end group
@end example

@@ -2594,6 +2600,12 @@ shell exits with the status of the last command in the pipeline
 status from the compiler.
@cindex @code{-e} (shell flag)

+@cindex @code{-MM} (to GNU compiler)
+With the GNU C compiler, you may wish to use the @samp{-MM} flag instead
+of @samp{-M}.  This omits dependencies on system header files.
+@xref{Preprocessor Options, , Options Controlling the Preprocessor, 
+gcc.info, Using GNU CC}, for details.
+
@cindex @code{sed} (shell command)
 The purpose of the @code{sed} command is to translate (for example):

@@ -2641,11 +2653,13 @@ with no further work from you.  @xref{Remaking Makefiles}.
@cindex rule commands
@cindex writing rule commands

-The commands of a rule consist of shell command lines to be executed one by
-one.  Each command line must start with a tab, except that the first
+The commands of a rule consist of shell command lines to be executed one
+by one.  Each command line must start with a tab, except that the first
 command line may be attached to the target-and-dependencies line with a
 semicolon in between.  Blank lines and lines of just comments may appear
-among the command lines; they are ignored.
+among the command lines; they are ignored.  (But beware, an apparently
+``blank'' line that begins with a tab is @emph{not} blank!  It is an
+empty command; @pxref{Empty Commands}.)

 Users use many different shell programs, but commands in makefiles are
 always interpreted by @file{/bin/sh} unless the makefile specifies
@@ -2711,7 +2725,7 @@ actually doing them.
 The @samp{-s} or @samp{--silent}
 flag to @code{make} prevents all echoing, as if all commands
 started with @samp{@@}.  A rule in the makefile for the special target
-@code{.SILENT} has the same effect 
+@code{.SILENT} without dependencies has the same effect 
 (@pxref{Special Targets, ,Special Built-in Target Names}).
@code{.SILENT} is essentially obsolete since @samp{@@} is more flexible.@refill

@@ -2900,10 +2914,10 @@ This causes @code{rm} to continue even if it is unable to remove a file.
@cindex @code{--ignore-errors}
@findex .IGNORE
 When you run @code{make} with the @samp{-i} or @samp{--ignore-errors}
-flag, errors are ignored in
-all commands of all rules.  A rule in the makefile for the special target
-@code{.IGNORE} has the same effect.  These ways of ignoring errors are
-obsolete because @samp{-} is more flexible.
+flag, errors are ignored in all commands of all rules.  A rule in the
+makefile for the special target @code{.IGNORE} has the same effect, if
+there are no dependencies.  These ways of ignoring errors are obsolete
+because @samp{-} is more flexible.

 When errors are to be ignored, because of either a @samp{-} or the
@samp{-i} flag, @code{make} treats an error return just like success,
@@ -2916,6 +2930,7 @@ can any other that depends on it either directly or indirectly.  No further
 commands will be executed for these targets, since their preconditions
 have not been achieved.

+
@cindex @code{-k}
@cindex @code{--keep-going}
 Normally @code{make} gives up immediately in this circumstance, returning a
@@ -2937,11 +2952,28 @@ is why Emacs' @code{compile} command passes the @samp{-k} flag by
 default.
@cindex Emacs (@code{M-x compile})

+@findex .DELETE_ON_ERROR
+@cindex deletion of target files
+@cindex removal of target files
+@cindex target, deleting on error
+Usually when a command fails, if it has changed the target file at all,
+the file is corrupted and cannot be used---or at least it is not
+completely updated.  Yet the file's timestamp says that it is now up to
+date, so the next time @code{make} runs, it will not try to update that
+file.  The situation is just the same as when the command is killed by a
+signal; @pxref{Interrupts}.  So generally the right thing to do is to
+delete the target file if the command fails after beginning to change
+the file.  @code{make} will do this if @code{.DELETE_ON_ERROR} appears
+as a target.  This is almost always what you want @code{make} to do, but
+it is not historical practice; so for compatibility, you must explicitly
+request it.
+
@node Interrupts, Recursion, Errors, Commands
@section Interrupting or Killing @code{make}
@cindex interrupt
@cindex signal
@cindex deletion of target files
+@cindex removal of target files
@cindex target, deleting on interrupt
@cindex killing (interruption)

@@ -3032,28 +3064,6 @@ is @samp{cd subdir; /bin/make}.  If you use a special version of
 executed for recursive invocations.
@cindex @code{cd} (shell command)

-Also, any arguments that define variable values are added to @code{MAKE},
-so the sub-@code{make} gets them too.  Thus, if you do @samp{make
-CFLAGS=-O}, so that all C compilations will be optimized, the
-sub-@code{make} is run with @samp{cd subdir; /bin/make CFLAGS=-O}.@refill
-
-@vindex MAKE_COMMAND
-@vindex MAKEOVERRIDES
-The @code{MAKE} variable actually just refers to two other variables
-which contain these special values.  In fact, @code{MAKE} is always
-defined as @samp{$(MAKE_COMMAND) $(MAKEOVERRIDES)}.  The variable
-@code{MAKE_COMMAND} is the file name with which @code{make} was invoked
-(such as @file{/bin/make}, above).  The variable @code{MAKEOVERRIDES}
-contains definitions for the variables defined on the command line; in
-the above example, its value is @samp{CFLAGS=-O}.  If you @emph{do not}
-want these variable definitions done in all recursive @code{make}
-invocations, you can redefine the @code{MAKEOVERRIDES} variable to
-remove them.  You do this in any of the normal ways for defining
-variables: in a makefile (@pxref{Setting, ,Setting Variables}); on the command
-line with an argument like @samp{MAKEOVERRIDES=} 
-(@pxref{Overriding, ,Overriding Variables}); or with an environment variable
-(@pxref{Environment, ,Variables from the Environment}).
-
 As a special feature, using the variable @code{MAKE} in the commands of
 a rule alters the effects of the @samp{-t} (@samp{--touch}), @samp{-n}
 (@samp{--just-print}), or @samp{-q} (@w{@samp{--question}}) option.
@@ -3096,9 +3106,9 @@ commands, is propagated to the subsystem.@refill
 Variable values of the top-level @code{make} can be passed to the
 sub-@code{make} through the environment by explicit request.  These
 variables are defined in the sub-@code{make} as defaults, but do not
-override what is specified in the sub-@code{make}'s makefile unless
-you use the @samp{-e} switch
-(@pxref{Options Summary, ,Summary of Options}).@refill
+override what is specified in the makefile used by the sub-@code{make}
+makefile unless you use the @samp{-e} switch (@pxref{Options Summary,
+,Summary of Options}).@refill

 To pass down, or @dfn{export}, a variable, @code{make} adds the variable
 and its value to the environment for running each command.  The
@@ -3116,6 +3126,15 @@ The special variables @code{SHELL} and @code{MAKEFLAGS} are always
 exported (unless you unexport them).
@code{MAKEFILES} is exported if you set it to anything.

+@code{make} automatically passes down variable values that were defined
+on the command line, by putting them in the @code{MAKEFLAGS} variable.
+@iftex
+See the next section.
+@end iftex
+@ifinfo
+@xref{Options/Recursion}.
+@end ifinfo
+
 Variables are @emph{not} normally passed down if they were created by
 default by @code{make} (@pxref{Implicit Variables, ,Variables Used by
 Implicit Rules}).  The sub-@code{make} will define these for
@@ -3264,6 +3283,15 @@ in its environment.  In response, it takes the flags from that value and
 processes them as if they had been given as arguments.
@xref{Options Summary, ,Summary of Options}.

+@cindex command line variable definitions, and recursion
+@cindex variables, command line, and recursion
+@cindex recursion, and command line variable definitions
+Likewise variables defined on the command line are passed to the
+sub-@code{make} through @code{MAKEFLAGS}.  Words in the value of
+@code{MAKEFLAGS} that contain @samp{=}, @code{make} treats as variable
+definitions just as if they appeared on the command line.
+@xref{Overriding, ,Overriding Variables}.
+
@cindex @code{-C}, and recursion
@cindex @code{-f}, and recursion
@cindex @code{-I}, and recursion
@@ -3313,13 +3341,39 @@ subsystem:
        cd subdir; $(MAKE) MAKEFLAGS=
@end example

+@vindex MAKEOVERRIDES
+The command line variable definitions really appear in the variable
+@code{MAKEOVERRIDES}, and @code{MAKEFLAGS} contains a reference to this
+variable.  If you do want to pass flags down normally, but don't want to
+pass down the command line variable definitions, you can reset
+@code{MAKEOVERRIDES} to empty, like this:
+
+@example
+MAKEOVERRIDES =
+@end example
+
+@noindent
+@cindex Arg list too long
+@cindex E2BIG
+This is not usually useful to do.  However, some systems have a small
+fixed limit on the size of the environment, and putting so much
+information in into the value of @code{MAKEFLAGS} can exceed it.
+If you see the error message @samp{Arg list too long}, this may be the problem.
+@findex .POSIX
+@cindex POSIX.2
+(For strict compliance with POSIX.2, changing @code{MAKEOVERRIDES} does
+not affect @code{MAKEFLAGS} if the special target @samp{.POSIX} appears
+in the makefile.  You probably do not care about this.)
+
@vindex MFLAGS
-A similar variable @code{MFLAGS} exists also, for historical compatibility.
-It has the same value as @code{MAKEFLAGS} except that it always begins with
-a hyphen unless it is empty (@code{MAKEFLAGS} begins with a hyphen only when
-it begins with an option that has no single-letter version, such as
-@samp{--warn-undefined-variables}).  @code{MFLAGS} was traditionally used
-explicitly in the recursive @code{make} command, like this:
+A similar variable @code{MFLAGS} exists also, for historical
+compatibility.  It has the same value as @code{MAKEFLAGS} except that it
+does not contain the command line variable definitions, and it always
+begins with a hyphen unless it is empty (@code{MAKEFLAGS} begins with a
+hyphen only when it begins with an option that has no single-letter
+version, such as @samp{--warn-undefined-variables}).  @code{MFLAGS} was
+traditionally used explicitly in the recursive @code{make} command, like
+this:

@example
 subsystem:
@@ -5346,12 +5400,12 @@ variable names because many strange things are valid variable names, but
 are probably not what you intended.  For example,

@smallexample
-files := $(foreach Es escrito en espanol!,b c ch,$(find_files))
+files := $(foreach Esta escrito en espanol!,b c ch,$(find_files))
@end smallexample

@noindent
 might be useful if the value of @code{find_files} references the variable
-whose name is @samp{Es escrito en espanol!} (es un nombre bastante largo,
+whose name is @samp{Esta escrito en espanol!} (es un nombre bastante largo,
 no?), but it is more likely to be a mistake.

@node Origin Function, Shell Function, Foreach Function, Functions
@@ -5581,7 +5635,9 @@ dependencies of goals, or dependencies of dependencies of goals, etc.
 By default, the goal is the first target in the makefile (not counting
 targets that start with a period).  Therefore, makefiles are usually
 written so that the first target is for compiling the entire program or
-programs they describe.
+programs they describe.  If the first rule in the makefile has several
+targets, only the first target in the rule becomes the default goal, not
+the whole list.

 You can specify a different goal or goals with arguments to @code{make}.
 Use the name of the goal as an argument.  If you specify several goals,
@@ -7106,6 +7162,14 @@ the value of @code{$^} contains just one copy of the name.
@cindex dependencies, list of all
@cindex list of all dependencies

+@vindex $+
+@vindex + @r{(automatic variable)}
+@item $+
+This is like @samp{$^}, but dependencies listed more than once are
+duplicated in the order they were listed in the makefile.  This is
+primarily useful for use in linking commands where it is meaningful to
+repeat library file names in a particular order.
+
@vindex $*
@vindex * @r{(automatic variable)}
@item $*
@@ -7620,6 +7684,7 @@ main use is as subroutine libraries for linking.
@menu
 * Archive Members::             Archive members as targets.
 * Archive Update::              The implicit rule for archive member targets.
+* Archive Pitfalls::            Dangers to watch out for when using archives.
 * Archive Suffix Rules::        You can write a special kind of suffix rule
                                  for updating archives.
@end menu
@@ -7676,7 +7741,7 @@ example, @w{@samp{foolib(*.o)}} expands to all existing members of the
@file{foolib} archive whose names end in @samp{.o}; perhaps
@samp{@w{foolib(hack.o)} @w{foolib(kludge.o)}}.

-@node Archive Update, Archive Suffix Rules, Archive Members, Archives
+@node Archive Update
@section Implicit Rule for Archive Member Targets

 Recall that a target that looks like @file{@var{a}(@var{m})} stands for the
@@ -7766,7 +7831,24 @@ files into the archive, as described in the preceding section.
 This is not necessary when using the GNU @code{ar} program, which
 updates the @file{__.SYMDEF} member automatically.

-@node Archive Suffix Rules,  , Archive Update, Archives
+@node Archive Pitfalls
+@section Dangers When Using Archives
+@cindex archive, and parallel execution
+@cindex parallel execution, and archive update
+@cindex archive, and @code{-j}
+@cindex @code{-j}, and archive update
+
+It is important to be careful when using parallel execution (the
+@code{-j} switch; @pxref{Parallel, ,Parallel Execution}) and archives.
+If multiple @code{ar} commands run at the same time on the same archive
+file, they will not know about each other and can corrupt the file.
+
+Possibly a future version of @code{make} will provide a mechanism to
+circumvent this problem by serializing all commands that operate on the
+same archive file.  But for the time being, you must either write your
+makefiles to avoid this problem in some other way, or not use @code{-j}.
+
+@node Archive Suffix Rules, , Archive Pitfalls, Archives
@section Suffix Rules for Archive Files
@cindex suffix rule, for archive
@cindex archive, suffix rule for
@@ -7912,8 +7994,9 @@ same time.  @xref{Chained Rules, ,Chains of Implicit Rules}.

@item
 The automatic variable @code{$^} containing a list of all dependencies
-of the current target.  We did not invent this, but we have no idea who did.
-@xref{Automatic, ,Automatic Variables}.
+of the current target.  We did not invent this, but we have no idea who
+did.  @xref{Automatic, ,Automatic Variables}.  The automatic variable
+@code{$+} is a simple extension of @code{$^}.

@item
 The ``what if'' flag (@samp{-W} in GNU @code{make}) was (as far as we know)
@@ -8381,9 +8464,11 @@ For dependencies which are archive members, only
 the member named is used (@pxref{Archives}).

@item $^
+@itemx $+
 The names of all the dependencies, with spaces between them.  For
 dependencies which are archive members, only the member named is used
-(@pxref{Archives}).
+(@pxref{Archives}).  The value of @code{$^} omits duplicate
+dependencies, while @code{$+} retains them and preserves their order.

@item $*
 The stem with which an implicit rule matches 
@@ -8409,6 +8494,10 @@ The directory part and the file-within-directory part of @code{$<}.
@itemx $(^F)
 The directory part and the file-within-directory part of @code{$^}.

+@item $(+D)
+@itemx $(+F)
+The directory part and the file-within-directory part of @code{$+}.
+
@item $(?D)
@itemx $(?F)
 The directory part and the file-within-directory part of @code{$?}.
--- a/misc.c
+++ b/misc.c
@@ -461,12 +461,8 @@ dep_name (dep)
   setregid functions, but they don't work as in BSD and only the POSIX.1
   way works.  */

-#ifndef HAVE_SETREUID
 #undef HAVE_SETREUID
-#endif
-#ifndef HAVE_SETREGID
 #undef HAVE_SETREGID
-#endif

 #else	/* Not POSIX.  */

@@ -720,3 +716,23 @@ get_path_max ()
  return value;
 }
 #endif
+
+/* On some systems, stat can return EINTR.  */
+
+int
+safe_stat (name, buf)
+     char *name;
+     struct stat *buf;
+{
+  int ret;
+
+#ifdef EINTR
+  do
+#endif
+    ret = stat (name, buf);
+#ifdef EINTR
+  while (ret < 0 && errno == EINTR);
+#endif
+
+  return  ret;
+}
--- a/read.c
+++ b/read.c
@@ -1,5 +1,5 @@
 /* Reading and parsing of makefiles for GNU Make.
-Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -240,6 +240,7 @@ read_makefile (filename, flags)
  char *p2;
  int ignoring = 0, in_ignored_define = 0;
  int no_targets = 0;		/* Set when reading a rule without targets.  */
+  char *passed_filename = filename;

  struct nameseq *filenames = 0;
  struct dep *deps;
@@ -288,7 +289,6 @@ read_makefile (filename, flags)
  if (!(flags & RM_NO_TILDE) && filename[0] == '~')
    {
      char *expanded = tilde_expand (filename);
-      /* This is a possible memory leak, but I don't care.  */
      if (expanded != 0)
 	filename = expanded;
    }
@@ -330,6 +330,8 @@ read_makefile (filename, flags)
      if (flags & RM_DONTCARE)
 	deps->file->dontcare = 1;
    }
+  if (filename != passed_filename)
+    free (filename);
  filename = deps->file->name;
  deps->changed = flags;
  deps = 0;
@@ -360,6 +362,47 @@ read_makefile (filename, flags)
      lineno += nlines;
      nlines = readline (&lb, infile, filename, lineno);

+      /* Check for a shell command line first.
+	 If it is not one, we can stop treating tab specially.  */
+      if (lb.buffer[0] == '\t')
+	{
+	  /* This line is a probably shell command.  */
+	  unsigned int len;
+
+	  if (no_targets)
+	    /* Ignore the commands in a rule with no targets.  */
+	    continue;
+
+	  /* If there is no preceding rule line, don't treat this line
+	     as a command, even though it begins with a tab character.
+	     SunOS 4 make appears to behave this way.  */
+
+	  if (filenames != 0)
+	    {
+	      if (ignoring)
+		/* Yep, this is a shell command, and we don't care.  */
+		continue;
+
+	      /* Append this command line to the line being accumulated.  */
+	      p = lb.buffer;
+	      if (commands_idx == 0)
+		commands_started = lineno;
+	      len = strlen (p);
+	      if (len + 1 + commands_idx > commands_len)
+		{
+		  commands_len = (len + 1 + commands_idx) * 2;
+		  commands = (char *) xrealloc (commands, commands_len);
+		}
+	      bcopy (p, &commands[commands_idx], len);
+	      commands_idx += len;
+	      commands[commands_idx++] = '\n';
+
+	      continue;
+	    }
+	}
+
+      /* This line is not a shell command line.  Don't worry about tabs.  */
+
      if (collapsed_length < lb.size)
 	{
 	  collapsed_length = lb.size;
@@ -372,17 +415,20 @@ read_makefile (filename, flags)
      collapse_continuations (collapsed);
      remove_comments (collapsed);

-      p = collapsed;
-      while (isspace (*p) && *p != '\t')
-	++p;
-      /* We cannot consider a line containing just a tab to be empty
-	 because it might constitute an empty command for a target.  */
-      if (*p == '\0' && lb.buffer[0] != '\t')
-	continue;
-
      /* strncmp is first to avoid dereferencing out into space.  */
 #define	word1eq(s, l) 	(!strncmp (s, p, l) \
 			 && (p[l] == '\0' || isblank (p[l])))
+      p = collapsed;
+      while (isspace (*p))
+	++p;
+      if (*p == '\0')
+	/* This line is completely empty.  */
+	continue;
+
+      /* We must first check for conditional and `define' directives before
+	 ignoring anything, since they control what we will do with
+	 following lines.  */
+
      if (!in_ignored_define
 	  && (word1eq ("ifdef", 5) || word1eq ("ifndef", 6)
 	      || word1eq ("ifeq", 4) || word1eq ("ifneq", 5)
@@ -458,40 +504,7 @@ read_makefile (filename, flags)
 	/* Ignore the line.  We continue here so conditionals
 	   can appear in the middle of a rule.  */
 	continue;
-      else if (lb.buffer[0] == '\t')
-	{
-	  /* This line is a shell command.  */
-	  unsigned int len;
-
-	  if (no_targets)
-	    /* Ignore the commands in a rule with no targets.  */
-	    continue;
-
-	  /* If there is no preceding rule line, don't treat this line
-	     as a command, even though it begins with a tab character.
-	     SunOS 4 make appears to behave this way.  */
-
-	  if (filenames != 0)
-	    {
-	      /* Append this command line to the line being accumulated.  */
-	      p = lb.buffer;
-	      if (commands_idx == 0)
-		commands_started = lineno;
-	      len = strlen (p);
-	      if (len + 1 + commands_idx > commands_len)
-		{
-		  commands_len = (len + 1 + commands_idx) * 2;
-		  commands = (char *) xrealloc (commands, commands_len);
-		}
-	      bcopy (p, &commands[commands_idx], len);
-	      commands_idx += len;
-	      commands[commands_idx++] = '\n';
-
-	      continue;
-	    }
-	}
-
-      if (word1eq ("export", 6))
+      else if (word1eq ("export", 6))
 	{
 	  struct variable *v;
 	  p2 = next_token (p + 6);
@@ -618,7 +631,7 @@ read_makefile (filename, flags)
 	;
      else if (lb.buffer[0] == '\t')
 	{
-	  p = lb.buffer;
+	  p = collapsed;	/* Ignore comments.  */
 	  while (isblank (*p))
 	    ++p;
 	  if (*p == '\0')
@@ -1788,7 +1801,7 @@ construct_include_path (arg_dirs)
 	      dir = expanded;
 	  }

-	if (stat (dir, &stbuf) == 0 && S_ISDIR (stbuf.st_mode))
+	if (safe_stat (dir, &stbuf) == 0 && S_ISDIR (stbuf.st_mode))
 	  {
 	    if (idx == max - 1)
 	      {
@@ -1805,7 +1818,7 @@ construct_include_path (arg_dirs)
  /* Now add at the end the standard default dirs.  */

  for (i = 0; default_include_directories[i] != 0; ++i)
-    if (stat (default_include_directories[i], &stbuf) == 0
+    if (safe_stat (default_include_directories[i], &stbuf) == 0
 	&& S_ISDIR (stbuf.st_mode))
      dirs[idx++] = default_include_directories[i];

--- a/remake.c
+++ b/remake.c
@@ -1,5 +1,5 @@
 /* Basic dependency engine for GNU Make.
-Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -21,6 +21,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "job.h"
 #include "dep.h"
 #include "file.h"
+#include <assert.h>

 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
@@ -277,9 +278,7 @@ update_file (file, depth)
 	  return 0;

 	default:
-	  error ("internal error: `%s' command_state == %d in update_file",
-		 f->name, (int) f->command_state);
-	  abort ();
+	  assert (f->command_state == cs_running);
 	  break;
 	}
    }
@@ -468,7 +467,7 @@ update_file_1 (file, depth)

  if (running)
    {
-      file->command_state = cs_deps_running;
+      set_command_state (file, cs_deps_running);
      --depth;
      DEBUGPR ("The dependencies of `%s' are being made.\n");
      return 0;
@@ -478,9 +477,8 @@ update_file_1 (file, depth)

  if (dep_status != 0)
    {
-      file->command_state = cs_finished;
      file->update_status = dep_status;
-      file->updated = 1;
+      notice_finished_file (file);

      depth--;

@@ -493,7 +491,16 @@ update_file_1 (file, depth)
      return dep_status;
    }

-  file->command_state = cs_not_started;
+  if (file->command_state == cs_deps_running)
+    /* The commands for some deps were running on the last iteration, but
+       they have finished now.  Reset the command_state to not_started to
+       simplify later bookkeeping.  It is important that we do this only
+       when the prior state was cs_deps_running, because that prior state
+       was definitely propagated to FILE's also_make's by set_command_state
+       (called above), but in another state an also_make may have
+       independently changed to finished state, and we would confuse that
+       file's bookkeeping (updated, but not_started is bogus state).  */
+    set_command_state (file, cs_not_started);

  /* Now record which dependencies are more
     recent than this file, so we can define $?.  */
@@ -549,9 +556,7 @@ update_file_1 (file, depth)
  if (!must_make)
    {
      DEBUGPR ("No need to remake target `%s'.\n");
-      file->command_state = cs_finished;
-      file->update_status = 0;
-      file->updated = 1;
+      notice_finished_file (file);
      return 0;
    }

@@ -574,13 +579,9 @@ update_file_1 (file, depth)
    case 0:
      DEBUGPR ("Successfully remade target file `%s'.\n");
      break;
-    case -1:
-      error ("internal error: `%s' update_status is -1 at cs_finished!",
-	     file->name);
-      abort ();
    default:
-      error ("internal error: `%s' update_status invalid!", file->name);
-      abort ();
+      assert (file->update_status == 0 || file->update_status == 1);
+      break;
    }

  file->updated = 1;
@@ -596,18 +597,19 @@ notice_finished_file (file)
     register struct file *file;
 {
  struct dep *d;
+  int ran = file->command_state == cs_running;

  file->command_state = cs_finished;
  file->updated = 1;

  if (touch_flag
      /* The update status will be:
-	 	-1	if no commands were run;
-		0	if some commands (+ or ${MAKE}) were run and won;
+	 	-1	if this target was not remade;
+		0	if 0 or more commands (+ or ${MAKE}) were run and won;
 		1	if some commands were run and lost.
-	 The only time we don't want to touch the target is if
-	 it had some recursive commands, and they lost.  */
-      && file->update_status != 1)
+	 We touch the target if it has commands which either were not run
+	 or won when they ran (i.e. status is 0).  */
+      && file->update_status == 0)
    {
      if (file->cmds != 0 && file->cmds->any_recurse)
 	{
@@ -629,7 +631,7 @@ notice_finished_file (file)
 	}
    }

-  if (!file->phony)
+  if (ran && !file->phony)
    {
      struct file *f;

@@ -645,7 +647,7 @@ notice_finished_file (file)
 	f->last_mtime = file->last_mtime;
    }

-  if (file->update_status != -1)
+  if (ran && file->update_status != -1)
    /* We actually tried to update FILE, which has
       updated its also_make's as well (if it worked).
       If it didn't work, it wouldn't work again for them.
@@ -656,7 +658,7 @@ notice_finished_file (file)
 	d->file->updated = 1;
 	d->file->update_status = file->update_status;

-	if (!d->file->phony)
+	if (ran && !d->file->phony)
 	  /* Fetch the new modification time.
 	     We do this instead of just invalidating the cached time
 	     so that a vpath_search can happen.  Otherwise, it would
@@ -738,7 +740,7 @@ check_dep (file, depth, this_mtime, must_make_ptr)
 	    /* Record that some of FILE's dependencies are still being made.
 	       This tells the upper levels to wait on processing it until
 	       the commands are finished.  */
-	    file->command_state = cs_deps_running;
+	    set_command_state (file, cs_deps_running);

 	  lastd = d;
 	  d = d->next;
@@ -777,8 +779,16 @@ touch_file (file)
 	{
 	  struct stat statbuf;
 	  char buf;
+	  int status;

-	  if (fstat (fd, &statbuf) < 0)
+#ifdef EINTR
+	  do
+#endif
+	    status = fstat (fd, &statbuf);
+#ifdef EINTR
+	  while (status < 0 && errno == EINTR);
+#endif
+	  if (status < 0)
 	    TOUCH_ERROR ("touch: fstat: ");
 	  /* Rewrite character 0 same as it already is.  */
 	  if (read (fd, &buf, 1) < 0)
@@ -843,6 +853,9 @@ remake_file (file)
 	  execute_file_commands (file);
 	  return;
 	}
+      else
+	/* This tells notice_finished_file it is ok to touch the file.  */
+	file->update_status = 0;
    }

  /* This does the touching under -t.  */
@@ -971,7 +984,7 @@ name_mtime (name)
 {
  struct stat st;

-  if (stat (name, &st) < 0)
+  if (safe_stat (name, &st) < 0)
    return (time_t) -1;

  return (time_t) st.st_mtime;
--- a/signame.c
+++ b/signame.c
@@ -20,14 +20,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include <signal.h>

 #ifdef HAVE_CONFIG_H
-#if defined (emacs) || defined (CONFIG_BROKETS)
-/* We use <config.h> instead of "config.h" so that a compilation
-   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
-   (which it would do because it found this file in $srcdir).  */
 #include <config.h>
-#else
-#include "config.h"
-#endif
 #endif

 /* Some systems do not define NSIG in <signal.h>.  */
--- a/variable.c
+++ b/variable.c
@@ -387,12 +387,14 @@ define_automatic_variables ()
  define_variable ("<D", 2, "$(patsubst %/,%,$(dir $<))", o_automatic, 1);
  define_variable ("?D", 2, "$(patsubst %/,%,$(dir $?))", o_automatic, 1);
  define_variable ("^D", 2, "$(patsubst %/,%,$(dir $^))", o_automatic, 1);
+  define_variable ("+D", 2, "$(patsubst %/,%,$(dir $+))", o_automatic, 1);
  define_variable ("@F", 2, "$(notdir $@)", o_automatic, 1);
  define_variable ("%F", 2, "$(notdir $%)", o_automatic, 1);
  define_variable ("*F", 2, "$(notdir $*)", o_automatic, 1);
  define_variable ("<F", 2, "$(notdir $<)", o_automatic, 1);
  define_variable ("?F", 2, "$(notdir $?)", o_automatic, 1);
  define_variable ("^F", 2, "$(notdir $^)", o_automatic, 1);
+  define_variable ("+F", 2, "$(notdir $+)", o_automatic, 1);
 }

 int export_all_variables;
--- a/vpath.c
+++ b/vpath.c
@@ -1,5 +1,5 @@
 /* Implementation of pattern-matching file search paths for GNU Make.
-Copyright (C) 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
 This file is part of GNU Make.

 GNU Make is free software; you can redistribute it and/or modify
@@ -177,7 +177,7 @@ construct_vpath_list (pattern, dirpath)
  maxelem = 2;
  p = dirpath;
  while (*p != '\0')
-    if (*p++ == ':' || isblank (*p))
+    if (*p++ == PATH_SEPARATOR_CHAR || isblank (*p))
      ++maxelem;

  vpath = (char **) xmalloc (maxelem * sizeof (char *));
@@ -185,7 +185,7 @@ construct_vpath_list (pattern, dirpath)

  /* Skip over any initial colons and blanks.  */
  p = dirpath;
-  while (*p == ':' || isblank (*p))
+  while (*p == PATH_SEPARATOR_CHAR || isblank (*p))
    ++p;

  elem = 0;
@@ -196,7 +196,7 @@ construct_vpath_list (pattern, dirpath)

      /* Find the end of this entry.  */
      v = p;
-      while (*p != '\0' && *p != ':' && !isblank (*p))
+      while (*p != '\0' && *p != PATH_SEPARATOR_CHAR && !isblank (*p))
 	++p;

      len = p - v;
@@ -225,7 +225,7 @@ construct_vpath_list (pattern, dirpath)
 	}

      /* Skip over colons and blanks between entries.  */
-      while (*p == ':' || isblank (*p))
+      while (*p == PATH_SEPARATOR_CHAR || isblank (*p))
 	++p;
    }

@@ -419,7 +419,7 @@ selective_vpath_search (path, file, mtime_ptr)
 	  *n = '/';

 	  if (!exists_in_cache	/* Makefile-mentioned file need not exist.  */
-	      || stat (name, &st) == 0)	/* Does it really exist?  */
+	      || safe_stat (name, &st) == 0) /* Does it really exist?  */
 	    {
 	      /* We have found a file.
 		 Store the name we found into *FILE for the caller.  */
@@ -434,6 +434,8 @@ selective_vpath_search (path, file, mtime_ptr)

 	      return 1;
 	    }
+	  else
+	    exists = 0;
 	}
    }

@@ -461,7 +463,7 @@ print_vpath_data_base ()

      for (i = 0; v->searchpath[i] != 0; ++i)
 	printf ("%s%c", v->searchpath[i],
-		v->searchpath[i + 1] == 0 ? '\n' : ':');
+		v->searchpath[i + 1] == 0 ? '\n' : PATH_SEPARATOR_CHAR);
    }

  if (vpaths == 0)
@@ -479,6 +481,7 @@ print_vpath_data_base ()
      fputs ("\n# General (`VPATH' variable) search path:\n# ", stdout);

      for (i = 0; path[i] != 0; ++i)
-	printf ("%s%c", path[i], path[i + 1] == 0 ? '\n' : ':');
+	printf ("%s%c", path[i],
+		path[i + 1] == 0 ? '\n' : PATH_SEPARATOR_CHAR);
    }
 }