diff --git a/global/src/DP.c b/global/src/DP.c
index 899e889c2..580ba9105 100644
--- a/global/src/DP.c
+++ b/global/src/DP.c
@@ -2,7 +2,9 @@
 #   include "config.h"
 #endif
 
+#if HAVE_STDLIB_H
 #include <stdlib.h>
+#endif
 
 /* $Id: DP.c,v 1.14 2003-02-18 00:24:32 manoj Exp $ */
 #include "global.h"
diff --git a/global/src/ga_symmetr.c b/global/src/ga_symmetr.c
index b9cb5f6bf..ef736876c 100644
--- a/global/src/ga_symmetr.c
+++ b/global/src/ga_symmetr.c
@@ -2,7 +2,9 @@
 #   include "config.h"
 #endif
 
+#if HAVE_STDLIB_H
 #include <stdlib.h>
+#endif
 
 /**
  * Symmetrizes matrix A:  A := .5 * (A+A`)