Mercurial > gnulib
view m4/signal_h.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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# signal_h.m4 serial 18 dnl Copyright (C) 2007-2013 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_SIGNAL_H], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) gl_NEXT_HEADERS([signal.h]) # AIX declares sig_atomic_t to already include volatile, and C89 compilers # then choke on 'volatile sig_atomic_t'. C99 requires that it compile. AC_CHECK_TYPE([volatile sig_atomic_t], [], [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ #include <signal.h> ]]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) AC_REQUIRE([AC_TYPE_UID_T]) dnl Persuade glibc <signal.h> to define sighandler_t. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ #include <signal.h> ]]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include <signal.h> ]], [pthread_sigmask sigaction sigaddset sigdelset sigemptyset sigfillset sigismember sigpending sigprocmask]) ]) AC_DEFUN([gl_CHECK_TYPE_SIGSET_T], [ AC_CHECK_TYPES([sigset_t], [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no], [[ #include <signal.h> /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ #include <sys/types.h> ]]) if test $gl_cv_type_sigset_t != yes; then HAVE_SIGSET_T=0 fi ]) AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SIGNAL_H_DEFAULTS], [ GNULIB_PTHREAD_SIGMASK=0; AC_SUBST([GNULIB_PTHREAD_SIGMASK]) GNULIB_RAISE=0; AC_SUBST([GNULIB_RAISE]) GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) HAVE_RAISE=1; AC_SUBST([HAVE_RAISE]) HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) HAVE_STRUCT_SIGACTION_SA_SIGACTION=1; AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) REPLACE_RAISE=0; AC_SUBST([REPLACE_RAISE]) ])