Mercurial > gnulib
view m4/popen.m4 @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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# popen.m4 serial 5 dnl Copyright (C) 2009-2013 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. AC_DEFUN([gl_FUNC_POPEN], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([popen]) if test $ac_cv_func_popen = no; then HAVE_POPEN=0 else AC_CACHE_CHECK([whether popen works with closed stdin], [gl_cv_func_popen_works], [ AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include <stdio.h>]], [[int result = 0; FILE *child; fclose (stdin); fclose (stdout); child = popen ("echo a", "r"); if (fgetc (child) != 'a') result |= 1; if (pclose (child) != 0) result |= 2; return result; ]])], [gl_cv_func_popen_works=yes], [gl_cv_func_popen_works=no], dnl For now, only cygwin 1.5 or older is known to be broken. [gl_cv_func_popen_works='guessing yes']) ]) if test "$gl_cv_func_popen_works" = no; then REPLACE_POPEN=1 fi fi ]) # Prerequisites of lib/popen.c. AC_DEFUN([gl_PREREQ_POPEN], [ : ])