safeguard defn

diff --git a/generic/vfs.c b/generic/vfs.c
index da83a3379317f688abeaa6672e8067482656640c..effcfdce1e014598f244f2d8a84c6bc29903fa6b 100644 (file)
--- a/generic/vfs.c
+++ b/generic/vfs.c
@@ -45,7 +45,7 @@
  * some vfs implementation.  -1 is what Tcl expects, adopts from posix's
  * standard error value.
  */
-#define TCLVFS_POSIXERROR -1
+#define TCLVFS_POSIXERROR (-1)
 
 #ifndef CONST86
 #define CONST86