Update after gnulib changed.

Update after gnulib changed.

* gnulib-local/modules/fnmatch.diff: Update.
* gettext-runtime/intl/config.charset: Remove file.
* gettext-runtime/intl/localcharset.h: Update from gnulib.
* gettext-runtime/intl/localcharset.c: Likewise.
* gettext-runtime/intl/Makefile.in (DISTFILES.common): Remove config.charset.
(charset.alias): Remove target.
(install-exec): Don't install charset.alias.
(install-data): Don't chmod config.charset.
(installdirs): Don't create $(libdir).
(uninstall): Don't uninstall charset.alias.
(mostlyclean): Don't remove charset.alias.
* gettext-runtime/intl/lock.h: Update from gnulib.
* gettext-runtime/intl/verify.h: Likewise.
* gettext-runtime/intl/printf-parse.c: Likewise.
* gettext-runtime/libasprintf/printf-parse.c: Likewise.
* gettext-runtime/m4/extern-inline.m4: Likewise.
* gettext-runtime/m4/threadlib.m4: Likewise.
* Makefile.am (distcheck-hook): Don't compare config.charset, ref-add.sin,
ref-del.sin.