include alloca header

diff --git a/header.h b/header.h
index 44ef576..7a33188 100644 (file)
--- a/header.h
+++ b/header.h
@@ -1,5 +1,6 @@
 #include <assert.h>
 #include <stddef.h>
+#include <alloca.h>
 
 /***** COMPILER-SPECIFIC STUFF *****/
 #ifdef __GNUC__