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AC_DEFUN([SXE_CHECK_SYS_MMAN], [dnl
AC_CHECK_HEADERS([sys/mman.h])
])dnl SXE_CHECK_SYS_MMAN
AC_DEFUN([SXE_CHECK_MAP_ANON], [dnl
AC_MSG_CHECKING([for ANON maps])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 600
#define _BSD_SOURCE
#if defined HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif /* HAVE_SYS_MMAN_H */
#if defined MAP_ANON
/* good */
#elif defined MAP_ANONYMOUS
/* good too */
#else
# error MAP_ANON | MAP_ANONYMOUS needed
#endif
]])], [sxe_cv_feat_anon_maps="yes"], [sxe_cv_feat_anon_maps="no"])
if test "${sxe_cv_feat_anon_maps}" = "no"; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define _POSIX_C_SOURCE 200112L
#define _BSD_SOURCE
#define _XOPEN_SOURCE 600
#define _ALL_SOURCE
#if defined HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif /* HAVE_SYS_MMAN_H */
#if defined MAP_ANON
/* good */
#elif defined MAP_ANONYMOUS
/* good too */
#else
# error MAP_ANON | MAP_ANONYMOUS needed
#endif
]])], [
sxe_cv_feat_anon_maps="yes"
AC_DEFINE([MAP_ANON_NEEDS_ALL_SOURCE], [1],
[MAP_ANON with _ALL_SOURCE])
], [
sxe_cv_feat_anon_maps="no"
])
fi
if test "${sxe_cv_feat_anon_maps}" = "no"; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define _POSIX_C_SOURCE 200112L
#define _BSD_SOURCE
#define _XOPEN_SOURCE 600
#define _DARWIN_C_SOURCE
#if defined HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif /* HAVE_SYS_MMAN_H */
#if defined MAP_ANON
/* good */
#elif defined MAP_ANONYMOUS
/* good too */
#else
# error MAP_ANON | MAP_ANONYMOUS needed
#endif
]])], [
sxe_cv_feat_anon_maps="yes"
AC_DEFINE([MAP_ANON_NEEDS_DARWIN_SOURCE], [1],
[MAP_ANON with _DARWIN_C_SOURCE])
], [
sxe_cv_feat_anon_maps="no"
])
fi
AC_MSG_RESULT([${sxe_cv_feat_anon_maps}])
])dnl SXE_CHECK_MAP_ANON
AC_DEFUN([SXE_CHECK_MMAP], [dnl
AC_REQUIRE([SXE_CHECK_SYS_MMAN])
AC_REQUIRE([SXE_CHECK_MAP_ANON])
])dnl SXE_CHECK_MMAP
|
