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include(CheckCSourceCompiles)
check_c_source_compiles("
#include <wchar.h>
mbstate_t x;
int main() { return 0; }"
HAVE_MBSTATE)
if(NOT HAVE_MBSTATE)
check_c_source_compiles("
#define _XOPEN_SOURCE 500
#include <wchar.h>
mbstate_t x;
int main() { return 0; }"
DODEFINE_XOPEN_SOURCE)
endif()
check_c_source_compiles("
#define __EXTENSIONS__ 1
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
#ifdef HAVE_STRING_H
# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
# include <memory.h>
# endif
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
int main() { return 0; }"
DODEFINE_EXTENSIONS)
add_definitions(
-D_DARWIN_C_SOURCE
-D_POSIX_PTHREAD_SEMANTICS
-D__STDC_WANT_IEC_60559_BFP_EXT__
-D__STDC_WANT_IEC_60559_DFP_EXT__
-D__STDC_WANT_IEC_60559_FUNCS_EXT__
-D__STDC_WANT_IEC_60559_TYPES_EXT__
-D__STDC_WANT_LIB_EXT2__
-D__STDC_WANT_MATH_SPEC_FUNCS__
-D_TANDEM_SOURCE)
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