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-rw-r--r--src/LYSignal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/LYSignal.h b/src/LYSignal.h
index e0d5ec0a..9faf619b 100644
--- a/src/LYSignal.h
+++ b/src/LYSignal.h
@@ -12,7 +12,7 @@ extern void VMSsignal PARAMS((int sig, void (*func)()));
 #define signal(a,b) VMSsignal(a,b) /* use LYCurses.c routines for interrupts */
 #endif /* VMS */
 
-#if HAVE_SIGACTION
+#ifdef HAVE_SIGACTION
 typedef void LYSigHandlerFunc_t PARAMS((int));
 /* implementation in LYUtils.c */
 extern void LYExtSignal PARAMS((int sig, LYSigHandlerFunc_t * handler));