Use AC_MSG_NOTICE instead of "echo -e".
Use AC_MSG_NOTICE instead of "echo -e".

Some platforms don't handle "echo -e"; use AC_MSG_NOTICE along with
AS_HELP_STRING to more portably format the "libraries to be built"
message.

Signed-off-by: Nathaniel McCallum <e21db6bc36e69d5a94280d3a0834a03dc3be66b1@redhat.com>

Distrotech/libverto,tlyu/libverto,latchset/libverto,tlyu/libverto,latchset/libverto,Distrotech/libverto