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# This is a relatively minimal set of checks needed to get the
# gettext-runtime library to compile. It's possible that more extensive
# checks would optimize it.
if (NOT INTL_CHECKS_DONE)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckTypeSize)
# Set _GNU_SOURCE appropriately; this is required for certain checks
# below (e.g., asprintf, stpcpy, mempcpy).
check_c_source_compiles("
#include <features.h>
#ifdef __GNU_LIBRARY__
int main() {return 0;}
#endif
" HAVE_GNU_SOURCE)
if (HAVE_GNU_SOURCE)
set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
endif()
# These first three are necessary if the check_type_size calls are to work
check_include_files(sys/types.h HAVE_SYS_TYPES_H)
check_include_files(stdint.h HAVE_STDINT_H)
check_include_files(stddef.h HAVE_STDDEF_H)
# Other checks (in some cases only for check_symbol_exists commands)
check_include_files(inttypes.h HAVE_INTTYPES_H)
check_include_files(unistd.h HAVE_UNISTD_H)
# The next 4 checks are required for the conversion of libgnuintl.h.in
# to libintl.h and libgnuintl.h
check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
check_symbol_exists(asprintf "stdio.h" HAVE_ASPRINTF)
check_symbol_exists(wprintf "stdio.h" HAVE_WPRINTF)
check_c_source_runs("
#include <stdio.h>
#include <string.h>
static char *format = \"%2$d %1$d\";
static char buf[100];
int main ()
{
sprintf (buf, format, 33, 55);
return (strcmp (buf, \"55 33\") != 0);
}" HAVE_POSIX_PRINTF)
check_symbol_exists(LC_MESSAGES "locale.h" HAVE_LC_MESSAGES)
check_symbol_exists(fcntl "fcntl.h" HAVE_FCNTL)
check_symbol_exists(stpcpy "string.h" HAVE_STPCPY)
check_symbol_exists(mempcpy "string.h" HAVE_MEMPCPY)
check_symbol_exists(getcwd "unistd.h" HAVE_GETCWD)
check_symbol_exists(alloca "alloca.h" HAVE_ALLOCA)
check_c_source_compiles("
#include <inttypes.h>
#include <sys/types.h>
int main() {uintmax_t tmp; return 0;}
" HAVE_INTTYPES_H_WITH_UINTMAX)
check_c_source_compiles("
#include <stdint.h>
#include <sys/types.h>
int main() {uintmax_t tmp; return 0;}
" HAVE_STDINT_H_WITH_UINTMAX)
check_type_size(intmax_t INTMAX_T)
check_type_size(uintmax_t UINTMAX_T)
set(INTL_CHECKS_DONE TRUE)
endif (NOT INTL_CHECKS_DONE)
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