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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:25:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:25:44 +0000
commitb3925d944ed94cc76bbcbb14a799ec9beeb8d1bf (patch)
treea5e5ccdbc84294390695b5ae3a8c89cc16e6cbae /m4/signalblocking.m4
parentInitial commit. (diff)
downloadwget-b3925d944ed94cc76bbcbb14a799ec9beeb8d1bf.tar.xz
wget-b3925d944ed94cc76bbcbb14a799ec9beeb8d1bf.zip
Adding upstream version 1.21.4.upstream/1.21.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/signalblocking.m4')
-rw-r--r--m4/signalblocking.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/signalblocking.m4 b/m4/signalblocking.m4
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--- /dev/null
+++ b/m4/signalblocking.m4
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+# signalblocking.m4 serial 17
+dnl Copyright (C) 2001-2002, 2006-2023 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])
+ HAVE_POSIX_SIGNALBLOCKING=0
+ if test "$gl_cv_type_sigset_t" = yes; then
+ AC_CHECK_FUNC([sigprocmask], [HAVE_POSIX_SIGNALBLOCKING=1])
+ fi
+])
+
+# Prerequisites of lib/sigprocmask.c.
+AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:])