[ng] tests init: honour $ETAGS variable for etags requirement

* t/ax/am-test-lib.sh (require_tool): Here.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/t/ax/am-test-lib.sh b/t/ax/am-test-lib.sh
index b9a8c23a78867b9e5bd175beff80bb8e1c61c006..e41c8409dc2a05fe2ddba35ba9fa12875d19a071 100644 (file)
--- a/t/ax/am-test-lib.sh
+++ b/t/ax/am-test-lib.sh
@@ -416,7 +416,7 @@ require_tool ()
       echo "$me: running $CC -?"
       $CC -? || skip_all_ "Microsoft C compiler '$CC' not available"
       ;;
-    etags)
+    ${ETAGS-etags})
       # Exuberant Ctags will create a TAGS file even
       # when asked for --help or --version.  (Emacs's etags
       # does not have such problem.)  Use -o /dev/null