2008-06-22 Bruno Haible <bruno@clisp.org>
+ * m4/sigaction.m4 (gl_SIGACTION): Require gl_SIGNAL_H_DEFAULTS.
+
* m4/signalblocking.m4 (gl_PREREQ_SIG_HANDLER_H): New macro.
(gl_PREREQ_SIGPROCMASK): Invoke it.
* m4/sigaction.m4 (gl_PREREQ_SIGACTION): Likewise.