scripts/tags.sh: allow to use alternative ctags implementation

Some ctags implementations are available. With this change, You can
specify your favorite one with CTAGS environment variable.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 98680e9cd7be30dc8caadb518bafbaac21a515fd..99ce427d9a69d92953554d81816c62664d142615 100755 (executable)
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -344,7 +344,7 @@ case "$1" in
 
        "tags")
                rm -f tags
-               xtags ctags
+               xtags ${CTAGS:-ctags}
                remove_structs=y
                ;;