Mercurial > gnulib
view m4/mbstate_t.m4 @ 40189:3ba41edecde6
progreloc: Speed up executable lookup on various platforms.
* lib/progreloc.c: Include <errno.h>.
(safe_read, full_read): New functions.
(find_executable): On GNU/kFreeBSD, FreeBSD, DragonFly, NetBSD, Solaris,
prefer the information from the /proc file system to a PATH search.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Tue, 19 Feb 2019 21:42:54 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
# mbstate_t.m4 serial 13 dnl Copyright (C) 2000-2002, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # From Paul Eggert. # BeOS 5 has <wchar.h> but does not define mbstate_t, # so you can't declare an object of that type. # Check for this incompatibility with Standard C. # AC_TYPE_MBSTATE_T # ----------------- AC_DEFUN([AC_TYPE_MBSTATE_T], [ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11 AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT[ /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before <wchar.h>. BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included before <wchar.h>. */ #include <stddef.h> #include <stdio.h> #include <time.h> #include <wchar.h>]], [[mbstate_t x; return sizeof x;]])], [ac_cv_type_mbstate_t=yes], [ac_cv_type_mbstate_t=no])]) if test $ac_cv_type_mbstate_t = yes; then AC_DEFINE([HAVE_MBSTATE_T], [1], [Define to 1 if <wchar.h> declares mbstate_t.]) else AC_DEFINE([mbstate_t], [int], [Define to a type if <wchar.h> does not define.]) fi ])