+
+ # Handle the still-experimental Automake-NG programs specially.
+ # They remain named as the mainstream Automake programs ("automake",
+ # and "aclocal") to avoid gratuitous incompatibilities with
+ # pre-existing usages (by, say, autoreconf, or custom autogen.sh
+ # scripts), but correctly identify themselves (as being part of
+ # "GNU automake-ng") when asked their version.
+ case $app in
+ automake-ng|aclocal-ng)
+ app=`echo "$app" | sed 's/-ng$//'`
+ ($app --version | grep '(GNU automake-ng)') >/dev/null 2>&1 || {
+ echo "$me: Error: '$app' not found or not from Automake-NG" >&2
+ ret=1
+ continue
+ } ;;
+ esac