1 files changed, 1 insertions, 1 deletions
diff --git a/regint.h b/regint.h
index 1705410eec..182eed2670 100644
--- a/regint.h
+++ b/regint.h
@@ -194,7 +194,7 @@
 #include <stdlib.h>
 #endif
 
-#if defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
+#if defined(HAVE_ALLOCA_H) && (defined(_AIX) || !defined(__GNUC__))
 #include <alloca.h>
 #endif