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57ba50e611
* non-process-shared POSIX semaphores aren't supported on Darwin, we use the dispatch framework * dlsym segfaults with RTLD_NEXT from JIT code, so we must not even try this for -run. So we need to know in __bound_init if called from -run code, or from normal code, which means passing this down also from __bt_init and hence from the stub added in tcc_add_btstub * Darwin uses different structures for <ctype.h> facilities, this merely adds a warning about this * __libc_freeres doesn't exist * for non -run modus the context (.prog_base member) is constructed incorrectly (uses symbol zero for trying to get at the load bias, which doesn't really work that way), on Mach-O this errors out (and could also error out on ELF). For now deactivate this, which makes backtraces not be symbolic on MacOS for not -run.