New module 'unicase/u8-casecmp'.

[pspp] / lib / signal.in.h

diff --git a/lib/signal.in.h b/lib/signal.in.h
index a1c9e6f6d38dcc84639631d3d8371dad9fbb887e..3c74fd8d4ae2bb19df0dc9790ae4dce6c0cbe58e 100644 (file)
--- a/lib/signal.in.h
+++ b/lib/signal.in.h
@@ -15,6 +15,10 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
 #if defined __need_sig_atomic_t || defined __need_sigset_t
 /* Special invocation convention inside glibc header files.  */
 
@@ -42,6 +46,17 @@ extern "C" {
 #endif
 
 
+#if @GNULIB_SIGNAL_H_SIGPIPE@
+# ifndef SIGPIPE
+/* Define SIGPIPE to a value that does not overlap with other signals.  */
+#  define SIGPIPE 13
+#  define GNULIB_defined_SIGPIPE 1
+/* To actually use SIGPIPE, you also need the gnulib modules 'sigprocmask',
+   'write', 'stdio'.  */
+# endif
+#endif
+
+
 #if !@HAVE_POSIX_SIGNALBLOCKING@
 
 /* Maximum signal number + 1.  */
@@ -90,8 +105,18 @@ extern int sigprocmask (int operation, const sigset_t *set, sigset_t *old_set);
    handler.  */
 extern void (*signal (int sig, void (*func) (int))) (int);
 
+# if GNULIB_defined_SIGPIPE
+
+/* Raise signal SIG.  */
+#  undef raise
+#  define raise rpl_raise
+extern int raise (int sig);
+
+# endif
+
 #endif /* !@HAVE_POSIX_SIGNALBLOCKING@ */
 
+
 #if !@HAVE_SIGACTION@
 
 # if !@HAVE_SIGINFO_T@
@@ -118,9 +143,8 @@ struct siginfo_t
 typedef struct siginfo_t siginfo_t;
 # endif /* !@HAVE_SIGINFO_T@ */
 
-  /* Due to autoconf conventions, we can't tell if HAVE_SIGACTION
-     means we have the type or means we have the function.  We assume
-     that all implementations either have both or neither.  */
+/* We assume that platforms which lack the sigaction() function also lack
+   the 'struct sigaction' type, and vice versa.  */
 
 struct sigaction
 {
@@ -147,7 +171,17 @@ struct sigaction
 extern int sigaction (int, const struct sigaction *restrict,
                       struct sigaction *restrict);
 
-#endif /* !@HAVE_SIGACTION@ */
+#elif !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@
+
+# define sa_sigaction sa_handler
+
+#endif /* !@HAVE_SIGACTION@, !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ */
+
+
+/* Some systems don't have SA_NODEFER.  */
+#ifndef SA_NODEFER
+# define SA_NODEFER 0
+#endif
 
 
 #ifdef __cplusplus