This patch allows us to use glibc's build system to build locales
in a package separate from glibc.

  1. Use 'localedef' from $PATH since we are not rebuilding it.
  2. Use '--no-archive' to avoid building the big locale archive, and
     because the already-built 'localedef' would want to write it
     to '/run/current-system/locale', which is not possible.
  3. Pass $(inst_complocaledir)/$$locale to install files in the right
     place, and because otherwise, 'localedef' fails with:
     "cannot write output files to `(null)'".

--- glibc-2.27/localedata/Makefile
+++ glibc-2.27/localedata/Makefile
@@ -199,7 +199,7 @@ INSTALL-SUPPORTED-LOCALES=$(addprefix install-, $(SUPPORTED-LOCALES))
 
 # Sometimes the whole collection of locale files should be installed.
 LOCALEDEF=I18NPATH=. GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
-$(rtld-prefix) $(common-objpfx)locale/localedef
+  localedef --no-archive
 install-locales: $(INSTALL-SUPPORTED-LOCALES)
 
 install-locales-dir:
@@ -224,7 +224,7 @@ $(INSTALL-SUPPORTED-LOCALES): install-locales-dir
 	input=`echo $$locale | sed 's/\([^.]*\)[^@]*\(.*\)/\1\2/'`; \
 	$(LOCALEDEF) $$flags --alias-file=../intl/locale.alias \
 		     -i locales/$$input -f charmaps/$$charset \
-		     $(addprefix --prefix=,$(install_root)) $$locale \
+		     $(addprefix --prefix=,$(install_root)) $(inst_complocaledir)/$$locale \
 	&& echo ' done'; \
 
 tst-setlocale-ENV = LC_ALL=ja_JP.EUC-JP
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<tr><td><span title='2017-01-24 01:28:48 -0500'>2017-01-24</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=4cfd222fa7b4df34e8fc002cf572be86d887f5bd'>gnu: opus: Update to 1.1.4 [fixes CVE-2017-0381].</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-11-21 10:49:45 +0200'>2016-11-21</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=83b294b6d6c390f531ee817c592ea57234af591a'>gnu: opusfile: Update to 0.8.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2016-11-05 23:23:36 +0200'>2016-11-05</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=7acc2a3eb394373ab89e25a9fd70e3df918ffd24'>gnu: libkate: Update upstream location.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2016-07-22 14:02:13 -0400'>2016-07-22</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=eddf9ae95e4860274fa1a1855c5c40abc311f228'>gnu: opus: Update to 1.1.3.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>