From 8ffec2a3aba6f114784e11f89ef1d57a096ae540 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 19:39:29 +0200 Subject: Adding upstream version 8.32. Signed-off-by: Daniel Baumann --- m4/signal_h.m4 | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 m4/signal_h.m4 (limited to 'm4/signal_h.m4') diff --git a/m4/signal_h.m4 b/m4/signal_h.m4 new file mode 100644 index 0000000..b262980 --- /dev/null +++ b/m4/signal_h.m4 @@ -0,0 +1,85 @@ +# signal_h.m4 serial 19 +dnl Copyright (C) 2007-2020 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 + ]]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + AC_REQUIRE([AC_TYPE_UID_T]) + + dnl Persuade glibc to define sighandler_t. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ +#include + ]]) + + 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 + ]], [pthread_sigmask sigaction + sigaddset sigdelset sigemptyset sigfillset sigismember + sigpending sigprocmask]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +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 + /* Mingw defines sigset_t not in , but in . */ + #include + ]]) + 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]) +]) -- cgit v1.2.3