alloca: one step towards thread-safety

[pspp] / lib / signal.in.h

diff --git a/lib/signal.in.h b/lib/signal.in.h
index 807c03b72fecacd4aa7cd8460b84dc8a6bd310a7..b0c99c4aff31b859eadbed97429b64250f113859 100644 (file)
--- a/lib/signal.in.h
+++ b/lib/signal.in.h
@@ -72,6 +72,14 @@ typedef unsigned int sigset_t;
 #endif
 
 
+/* Maximum signal number + 1.  */
+#ifndef NSIG
+# if defined __TANDEM
+#  define NSIG 32
+# endif
+#endif
+
+
 #if @GNULIB_SIGPROCMASK@
 # if !@HAVE_POSIX_SIGNALBLOCKING@