Implement new "if... else if... endif" semantics.

tests/scripts/features/conditionals

@@ -3,12 +3,7 @@ $description = "Check GNU make conditionals.";
 
 $details = "Attempt various different flavors of GNU make conditionals.";
 
-open(MAKEFILE,"> $makefile");
-
-# The Contents of the MAKEFILE ...
-
-print MAKEFILE <<'EOMAKE';
-objects = foo.obj
+run_make_test('
 arg1 = first
 arg2 = second
 arg3 = third
@@ -22,13 +17,13 @@ else
 	@echo arg1 NOT equal arg2
 endif
 
-ifeq '$(arg2)' "$(arg5)"
+ifeq \'$(arg2)\' "$(arg5)"
 	@echo arg2 equals arg5
 else
 	@echo arg2 NOT equal arg5
 endif
 
-ifneq '$(arg3)' '$(arg4)'
+ifneq \'$(arg3)\' \'$(arg4)\'
 	@echo arg3 NOT equal arg4
 else
 	@echo arg3 equal arg4
@@ -43,32 +38,18 @@ ifdef arg4
 	@echo arg4 is defined
 else
 	@echo arg4 is NOT defined
-endif
-
-EOMAKE
-
-close(MAKEFILE);
-
-&run_make_with_options($makefile,"",&get_logfile,0);
-
-$answer = "arg1 NOT equal arg2
+endif',
+              '',
+              'arg1 NOT equal arg2
 arg2 equals arg5
 arg3 NOT equal arg4
 variable is undefined
-arg4 is defined
-";
-
-&compare_output($answer,&get_logfile(1));
+arg4 is defined');
 
 
 # Test expansion of variables inside ifdef.
 
-$makefile2 = &get_tmpfile;
-
-open(MAKEFILE, "> $makefile2");
-
-print MAKEFILE <<'EOF';
-
+run_make_test('
 foo = 1
 
 FOO = foo
@@ -92,15 +73,73 @@ ifdef $(call FUNC,DEF)3
   DEF3 = yes
 endif
 
-all:; @echo DEF=$(DEF) DEF2=$(DEF2) DEF3=$(DEF3)
+all:; @echo DEF=$(DEF) DEF2=$(DEF2) DEF3=$(DEF3)',
+              '',
+              'DEF=yes DEF2=yes DEF3=yes');
 
-EOF
 
-close(MAKEFILE)
+# Test all the different "else if..." constructs
 
-&run_make_with_options($makefile2,"",&get_logfile,0);
-$answer = "DEF=yes DEF2=yes DEF3=yes\n";
-&compare_output($answer,&get_logfile(1));
+run_make_test('
+arg1 = first
+arg2 = second
+arg3 = third
+arg4 = cc
+arg5 = fifth
+
+result =
+
+ifeq ($(arg1),$(arg2))
+  result += arg1 equals arg2
+else ifeq \'$(arg2)\' "$(arg5)"
+  result += arg2 equals arg5
+else ifneq \'$(arg3)\' \'$(arg3)\'
+  result += arg3 NOT equal arg4
+else ifndef arg5
+  result += variable is undefined
+else ifdef undefined
+  result += arg4 is defined
+else
+  result += success
+endif
+
+
+all: ; @echo $(result)',
+              '',
+              'success');
+
+
+# Test some random "else if..." construct nesting
+
+run_make_test('
+arg1 = first
+arg2 = second
+arg3 = third
+arg4 = cc
+arg5 = second
+
+ifeq ($(arg1),$(arg2))
+  $(info failed 1)
+else ifeq \'$(arg2)\' "$(arg2)"
+  ifdef undefined
+    $(info failed 2)
+  else
+    $(info success)
+  endif
+else ifneq \'$(arg3)\' \'$(arg3)\'
+  $(info failed 3)
+else ifdef arg5
+  $(info failed 4)
+else ifdef undefined
+  $(info failed 5)
+else
+  $(info failed 6)
+endif
+
+.PHONY: all
+all: ; @:',
+              '',
+              'success');
 
 
 # This tells the test driver that the perl test script executed properly.