Gnulib changed on 2018-11-11: asm-underscore.m4 is no longer needed for havelib.
* gettext-tools/examples/hello-c++-widgets/autogen.sh: Don't pull in
asm-underscore.m4.
* gettext-tools/examples/hello-c++-widgets/autoclean.sh: Don't remove
asm-underscore.m4.
rm -rf autom4te.cache
# Brought in by explicit copy.
-rm -f m4/asm-underscore.m4
rm -f m4/host-cpu-c-abi.m4
rm -f m4/nls.m4
rm -f m4/po.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/m4}/nls.m4 m4/nls.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/m4}/po.m4 m4/po.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/m4}/progtest.m4 m4/progtest.m4
-cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/gnulib-m4}/asm-underscore.m4 m4/asm-underscore.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/gnulib-m4}/host-cpu-c-abi.m4 m4/host-cpu-c-abi.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/gnulib-m4}/lib-ld.m4 m4/lib-ld.m4
cp -p ${ACLOCALDIR-$GETTEXT_TOPSRCDIR/gettext-runtime/gnulib-m4}/lib-link.m4 m4/lib-link.m4