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dnl This code comes from evolution-data-server
dnl License LGPL
AC_DEFUN([AC_CUSTOM_LARGE_FILE], [
dnl *************************************
dnl *** Checks for large file support ***
dnl *************************************
AC_SYS_LARGEFILE
AC_CACHE_CHECK([for _LARGEFILE64_SOURCE value needed for large files], largefile64_cv_source,
[
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
],[
int fd = open ("__o_largefile", O_CREAT | O_RDWR | O_LARGEFILE, 0644);
],[
largefile64_source="no"
],[
AC_TRY_COMPILE([
#define _LARGEFILE64_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
],[
int fd = open ("__o_largefile", O_CREAT | O_RDWR | O_LARGEFILE, 0644);
],[
largefile64_source="yes"
],[
largefile64_source="unknown"
])
])
])
if test "x$largefile64_source" = "xyes"; then
LARGEFILE_CFLAGS="-D_LARGEFILE64_SOURCE"
enable_largefile="yes"
elif test "x$largefile64_source" = "xunknown"; then
AC_DEFINE(O_LARGEFILE, 0, [Define to 0 if your system does not have the O_LARGEFILE flag])
fi
if test -n "$ac_cv_sys_large_files" -a "x$ac_cv_sys_large_files" != "xno"; then
LARGEFILE_CFLAGS="$LARGEFILE_CFLAGS -D_LARGE_FILES"
enable_largefile="yes"
fi
if test "x$ac_cv_sys_file_offset_bits" != "xno"; then
LARGEFILE_CFLAGS="$LARGEFILE_CFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
enable_largefile="yes"
fi
])
|
