diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog
index b932c06ba32b..82259f00b557 100644
--- a/libf2c/ChangeLog
+++ b/libf2c/ChangeLog
@@ -1,3 +1,7 @@
+Mon Apr 12 21:38:14 1999  Mumit Khan  <khan@xraylith.wisc.edu>
+	
+	* libF77/getenv_.c: Include stdlib.h.
+
 Sun Apr 11 23:30:42 1999  Mumit Khan  <khan@xraylith.wisc.edu>
 
 	* libU77/dtime_.c: Handle all variants of WIN32.
diff --git a/libf2c/libF77/getenv_.c b/libf2c/libF77/getenv_.c
index b9916e6065e5..bc116feb38ad 100644
--- a/libf2c/libF77/getenv_.c
+++ b/libf2c/libF77/getenv_.c
@@ -1,5 +1,10 @@
 #include "f2c.h"
 
+#ifndef KR_headers
+#undef abs
+#include <stdlib.h>
+#endif
+
 /*
  * getenv - f77 subroutine to return environment variables
  *