pthread_sigmask: new module

[gnulib.git] / m4 / pthread_sigmask.m4

diff --git a/m4/pthread_sigmask.m4 b/m4/pthread_sigmask.m4
new file mode 100644 (file)
index 0000000..22485bd
--- /dev/null
+++ b/m4/pthread_sigmask.m4
@@ -0,0 +1,24 @@
+# pthread_sigmask.m4 serial 1
+dnl Copyright (C) 2011 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_PTHREAD_SIGMASK],
+[
+  m4_ifdef([gl_THREADLIB], [
+    AC_REQUIRE([gl_THREADLIB])
+    if test "$gl_threads_api" = posix; then
+      gl_save_LIBS="$LIBS"
+      LIBS="$LIBS $LIBMULTITHREAD"
+      AC_CHECK_FUNCS([pthread_sigmask])
+      LIBS="$gl_save_LIBS"
+    fi
+  ], [
+    AC_CHECK_FUNCS_ONCE([pthread_sigmask])
+  ])
+
+  if test $ac_cv_func_pthread_sigmask = no; then
+    REPLACE_PTHREAD_SIGMASK=0
+  fi
+])