inet_ntop, inet_pton: Look for it also in libresolv.

[gnulib.git] / m4 / signal_h.m4

diff --git a/m4/signal_h.m4 b/m4/signal_h.m4
index 96270a9..c3f2538 100644 (file)
--- a/m4/signal_h.m4
+++ b/m4/signal_h.m4
@@ -1,4 +1,4 @@
-# signal_h.m4 serial 15
+# signal_h.m4 serial 17
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,6 +17,9 @@ AC_DEFUN([gl_SIGNAL_H],
 #include <signal.h>
     ]])
 
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
   AC_REQUIRE([AC_TYPE_UID_T])
 
   dnl Persuade glibc <signal.h> to define sighandler_t.
@@ -73,4 +76,5 @@ AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
   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])
 ])