Included a header that defines NULL.

diff --git a/libsrc/cbm/penadjust.c b/libsrc/cbm/penadjust.c
index 104c33c8d42e2b298afc50b5864df752f589788d..f33b3a2751020d329462ef1184a405b72884db45 100755 (executable)
--- a/libsrc/cbm/penadjust.c
+++ b/libsrc/cbm/penadjust.c
@@ -5,6 +5,7 @@
 */\r
 \r
 \r
+#include <stddef.h>\r
 #include <fcntl.h>\r
 #include <unistd.h>\r
 #include <mouse.h>\r