Mercurial > gnulib
view m4/fpending.m4 @ 40227:5207eb0dcd2a
tests: Avoid havoc with "gcc -fcheck-pointer-bounds".
* tests/test-fprintf-posix2.c: Skip the test when -fcheck-pointer-bounds
is in use.
* tests/test-printf-posix2.c: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 10 Mar 2019 17:09:30 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
# serial 22 # Copyright (C) 2000-2001, 2004-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl From Jim Meyering dnl Using code from emacs, based on suggestions from Paul Eggert dnl and Ulrich Drepper. dnl Find out how to determine the number of pending output bytes on a stream. dnl glibc (2.1.93 and newer) and Solaris provide __fpending. On other systems, dnl we have to grub around in the (possibly opaque) FILE struct. AC_DEFUN([gl_FUNC_FPENDING], [ AC_CHECK_HEADERS_ONCE([stdio_ext.h]) fp_headers=' #include <stdio.h> #if HAVE_STDIO_EXT_H # include <stdio_ext.h> #endif ' AC_CACHE_CHECK([for __fpending], [gl_cv_func___fpending], [ AC_LINK_IFELSE( [AC_LANG_PROGRAM([$fp_headers], [[return ! __fpending (stdin);]])], [gl_cv_func___fpending=yes], [gl_cv_func___fpending=no]) ]) if test $gl_cv_func___fpending = yes; then AC_CHECK_DECLS([__fpending], [], [], [$fp_headers]) fi ])