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-rw-r--r--src/s/usg5-3.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/s/usg5-3.h b/src/s/usg5-3.h
index c54ec479e65..e098cfcd74f 100644
--- a/src/s/usg5-3.h
+++ b/src/s/usg5-3.h
@@ -213,3 +213,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Enable support for shared libraries in unexec. */
#define USG_SHARED_LIBRARIES
+
+/* On USG systems signal handlers return void */
+
+#define SIGTYPE void
+