the source for the sed command, not oldXMenu/Makefile.
echo "# running \`make oldXMenu/Makefile' at the top of the" ; \
echo "# Emacs build tree instead, or editing" ; \
echo "# \`${srcdir}/oldXMenu/Makefile.in' itself." ; \
- sed < ${srcdir}/oldXMenu/Makefile \
+ sed < ${srcdir}/oldXMenu/Makefile.in \
-e 's|^\(srcdir *=\).*$$|\1'"${srcdir}"'/oldXMenu|' \
-e 's|^\(VPATH *=\).*$$|\1'"${srcdir}"'/oldXMenu|' \
-e 's|^CC *=.*$$|CC='"${CC}"'|' \