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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:19:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:19:27 +0000
commite0023883c6d2e6745a19e4b48e186ed156c1fca8 (patch)
tree1a48b8056ec984385d0d862b683535d04d6ed215 /gl/m4/signalblocking.m4
parentInitial commit. (diff)
downloadman-db-upstream.tar.xz
man-db-upstream.zip
Adding upstream version 2.11.2.upstream/2.11.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gl/m4/signalblocking.m4')
-rw-r--r--gl/m4/signalblocking.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/gl/m4/signalblocking.m4 b/gl/m4/signalblocking.m4
new file mode 100644
index 0000000..b586ef5
--- /dev/null
+++ b/gl/m4/signalblocking.m4
@@ -0,0 +1,23 @@
+# signalblocking.m4 serial 17
+dnl Copyright (C) 2001-2002, 2006-2022 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], [:])