+# endif
+
+# endif /* !@HAVE_POSIX_SIGNALBLOCKING@ */
+#elif defined GNULIB_POSIXCHECK
+# undef sigaddset
+# define sigaddset(s,n) \
+ (GL_LINK_WARNING ("sigaddset is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigaddset (s, n))
+# undef sigdelset
+# define sigdelset(s,n) \
+ (GL_LINK_WARNING ("sigdelset is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigdelset (s, n))
+# undef sigemptyset
+# define sigemptyset(s) \
+ (GL_LINK_WARNING ("sigemptyset is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigemptyset (s))
+# undef sigfillset
+# define sigfillset(s) \
+ (GL_LINK_WARNING ("sigfillset is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigfillset (s))
+# undef sigismember
+# define sigismember(s,n) \
+ (GL_LINK_WARNING ("sigismember is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigismember (s, n))
+# undef sigpending
+# define sigpending(s) \
+ (GL_LINK_WARNING ("sigpending is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigpending (s))
+# undef sigprocmask
+# define sigprocmask(h,s,o) \
+ (GL_LINK_WARNING ("sigprocmask is unportable - " \
+ "use gnulib module sigprocmask for portability"), \
+ sigprocmask (h, s, o))
+#endif /* @GNULIB_SIGPROCMASK@ */
+
+
+#if @GNULIB_SIGACTION@
+# if !@HAVE_SIGACTION@
+
+# if !@HAVE_SIGINFO_T@