fix -Wconst warnings

[ew: cleaned up the dirty union hack a bit]
Signed-off-by: Eric Wong <normalperson@yhbt.net>

git-svn-id: https://svn.musicpd.org/mpd/trunk@7180 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tag.h b/src/tag.h
index a554ee1c..363ad98a 100644
--- a/src/tag.h
+++ b/src/tag.h
@@ -41,7 +41,7 @@
 
 #define TAG_NUM_OF_ITEM_TYPES	11
 
-extern char *mpdTagItemKeys[];
+extern const char *mpdTagItemKeys[];
 
 typedef struct _MpdTagItem {
 	mpd_sint8 type;