use malloc unless we HAVE_ALLOCA

diff --git a/lib/GNUregex.c b/lib/GNUregex.c
index 91d8d1019e78c85511cbc6f468efd9b001f76202..cc5e5d9a7d89bf02a0d90e44528c5374abe2ab65 100644 (file)
--- a/lib/GNUregex.c
+++ b/lib/GNUregex.c
@@ -34,6 +34,10 @@
 #include "config.h"
 #endif
 
+#if !HAVE_ALLOCA
+#define REGEX_MALLOC 1
+#endif
+
 /* The `emacs' switch turns on certain matching commands
    that make sense only in Emacs. */
 #ifdef emacs