Hi Eli,

The attachment is a patch to fix the complaint message from `makefile-move-to-macro' for the param for re-search-forward isn't escaped.
To reproduce the issue, just run follow commands in your shell,
$ echo 'AM_LIBTMP_LIBS:=$(shell X \--libs)' > /tmp/Makefile.am
$ emacs -Q --eval '(progn (global-ede-mode t)(semantic-mode t)(find-file "/tmp/Makefile.am"))'

Could you please review and apply the patch? 
Thank you.

B.R.
Lin Sun