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system-hacks: define __GNUC__ for FreeBSD

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FreeBSDs system headers contain unconditional usage of
macros like __aligned(x), which are only conditionally defined
in sys/cdefs.h (conditional on __GNUC__ or __INTEL_COMPILER).

Bug in FreeBSD, but as work-around we can define __GNUC__ which
picks up these defs.

[This also moves back the glibc defines we had before into the
non-BSD ifdef branch]
This commit is contained in:
Michael Matz 2016-10-17 01:08:29 +02:00
parent 68a7af632c
commit 6fbcc14a5d
1 changed files with 11 additions and 12 deletions
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23
libtcc.c
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@ -890,23 +890,22 @@ LIBTCCAPI TCCState *tcc_new(void)
# if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) \
|| defined(__NetBSD__) || defined(__OpenBSD__)
tcc_define_symbol(s, "__WINT_TYPE__", "int");
# else
tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int");
# endif
# if 0
/* glibc defines */
tcc_define_symbol(s, "__REDIRECT(name, proto, alias)",
"name proto __asm__ (#alias)");
tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)",
"name proto __asm__ (#alias) __THROW");
# endif
# if 1
/* define __GNUC__ to have some useful stuff from sys/cdefs.h */
# ifdef __FreeBSD__
/* define __GNUC__ to have some useful stuff from sys/cdefs.h
that are unconditionally used in FreeBSDs other system headers :/ */
tcc_define_symbol(s, "__GNUC__", "2");
tcc_define_symbol(s, "__GNUC_MINOR__", "1");
tcc_define_symbol(s, "__builtin_alloca", "alloca");
tcc_define_symbol(s, "__builtin_memcpy", "memcpy");
tcc_define_symbol(s, "__USER_LABEL_PREFIX__", "");
# endif
# else
tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int");
/* glibc defines */
tcc_define_symbol(s, "__REDIRECT(name, proto, alias)",
"name proto __asm__ (#alias)");
tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)",
"name proto __asm__ (#alias) __THROW");
# endif
#endif /* ndef TCC_TARGET_PE */