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macos: add __builtin_flt_rounds. Forced to 1 which means 'to nearest'

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Christian Jullien 2020-06-24 10:37:28 +02:00
parent f635de709e
commit f6e392a4af
1 changed files with 3 additions and 0 deletions
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libtcc.c
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@ -956,6 +956,9 @@ LIBTCCAPI TCCState *tcc_new(void)
tcc_define_symbol(s, "__builtin_nanf(ignored_string)", "__nan()");
/* used by _fd_def.h */
tcc_define_symbol(s, "__builtin_bzero(p, ignored_size)", "bzero(p, sizeof(*(p)))");
/* used by floats.h to implement FLT_ROUNDS C99 macro. 1 == to nearest */
tcc_define_symbol(s, "__builtin_flt_rounds()", "1");
/* avoids usage of GCC/clang specific builtins in libc-headerfiles: */
tcc_define_symbol(s, "__FINITE_MATH_ONLY__", "1");
tcc_define_symbol(s, "_FORTIFY_SOURCE", "0");