From 74b60c5712f2a84904b95d008953c140a9bd5dd2 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:49:50 +0200 Subject: Adding upstream version 2.9.4. Signed-off-by: Daniel Baumann --- gl/m4/signalblocking.m4 | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 gl/m4/signalblocking.m4 (limited to 'gl/m4/signalblocking.m4') diff --git a/gl/m4/signalblocking.m4 b/gl/m4/signalblocking.m4 new file mode 100644 index 0000000..74de534 --- /dev/null +++ b/gl/m4/signalblocking.m4 @@ -0,0 +1,25 @@ +# signalblocking.m4 serial 14 +dnl Copyright (C) 2001-2002, 2006-2020 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. + +# Determine available signal blocking primitives. Three different APIs exist: +# 1) POSIX: sigemptyset, sigaddset, sigprocmask +# 2) SYSV: sighold, sigrelse +# 3) BSD: sigblock, sigsetmask +# For simplicity, here we check only for the POSIX signal blocking. +AC_DEFUN([gl_SIGNALBLOCKING], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) + if test $gl_cv_type_sigset_t = yes; then + AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1]) + fi + if test -z "$gl_cv_func_sigprocmask"; then + HAVE_POSIX_SIGNALBLOCKING=0 + fi +]) + +# Prerequisites of lib/sigprocmask.c. +AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:]) -- cgit v1.2.3