version 1.1.1.1, 2012/02/21 22:57:49
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version 1.1.1.2, 2012/05/29 09:29:44
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# signal_h.m4 serial 7 | # signal_h.m4 serial 16 |
dnl Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. | dnl Copyright (C) 2007-2011 Free Software Foundation, Inc. |
dnl This file is free software; the Free Software Foundation |
dnl This file is free software; the Free Software Foundation |
dnl gives unlimited permission to copy and/or distribute it, |
dnl gives unlimited permission to copy and/or distribute it, |
dnl with or without modifications, as long as this notice is preserved. |
dnl with or without modifications, as long as this notice is preserved. |
Line 7 dnl with or without modifications, as long as this not
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Line 7 dnl with or without modifications, as long as this not
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AC_DEFUN([gl_SIGNAL_H], |
AC_DEFUN([gl_SIGNAL_H], |
[ |
[ |
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
gl_CHECK_NEXT_HEADERS([signal.h]) | AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) |
| gl_NEXT_HEADERS([signal.h]) |
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# AIX declares sig_atomic_t to already include volatile, and C89 compilers |
# AIX declares sig_atomic_t to already include volatile, and C89 compilers |
# then choke on 'volatile sig_atomic_t'. C99 requires that it compile. |
# then choke on 'volatile sig_atomic_t'. C99 requires that it compile. |
AC_CHECK_TYPE([volatile sig_atomic_t], [], |
AC_CHECK_TYPE([volatile sig_atomic_t], [], |
[HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ |
[HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ |
#include <signal.h> |
#include <signal.h> |
]]) |
]]) |
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AC_REQUIRE([AC_TYPE_UID_T]) |
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dnl Persuade glibc <signal.h> to define sighandler_t. |
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
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AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ |
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#include <signal.h> |
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]]) |
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dnl Check for declarations of anything we want to poison if the |
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dnl corresponding gnulib module is not in use. |
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gl_WARN_ON_USE_PREPARE([[#include <signal.h> |
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]], [pthread_sigmask sigaction |
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sigaddset sigdelset sigemptyset sigfillset sigismember |
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sigpending sigprocmask]) |
]) |
]) |
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AC_DEFUN([gl_CHECK_TYPE_SIGSET_T], |
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[ |
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AC_CHECK_TYPES([sigset_t], |
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[gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no], |
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[[ |
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#include <signal.h> |
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/* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ |
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#include <sys/types.h> |
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]]) |
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if test $gl_cv_type_sigset_t != yes; then |
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HAVE_SIGSET_T=0 |
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fi |
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]) |
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AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], |
AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], |
[ |
[ |
dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) |
GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 | 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]) |
]) |
]) |
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AC_DEFUN([gl_SIGNAL_H_DEFAULTS], |
AC_DEFUN([gl_SIGNAL_H_DEFAULTS], |
[ |
[ |
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GNULIB_PTHREAD_SIGMASK=0; AC_SUBST([GNULIB_PTHREAD_SIGMASK]) |
GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) |
GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) |
GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) |
GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) |
GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) |
GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) |
dnl Assume proper GNU behavior unless another module says otherwise. |
dnl Assume proper GNU behavior unless another module says otherwise. |
HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) |
HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) |
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HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) |
HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) |
HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) |
HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) |
HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) |
HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) |
HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) |
Line 37 AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
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Line 72 AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
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AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) |
AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) |
HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; |
HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; |
AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) |
AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) |
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HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) |
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REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) |
]) |
]) |