Fix gcc -Wwrite-strings warning

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/XRes.c b/src/XRes.c
index d1ba49c..6091c96 100644
--- a/src/XRes.c
+++ b/src/XRes.c
@@ -16,7 +16,7 @@
 
 static XExtensionInfo _xres_ext_info_data;
 static XExtensionInfo *xres_ext_info = &_xres_ext_info_data;
-static char *xres_extension_name = XRES_NAME;
+static const char *xres_extension_name = XRES_NAME;
 
 #define XResCheckExtension(dpy,i,val) \
   XextCheckExtension (dpy, i, xres_extension_name, val)