libc/eglibc: fix localedef 2.14 build

The localedef of eglibc 2.14 requires NOT_IN_libc to be defined in order to
compile intl/l10nflist.c.

This is because localedef is built separately from eglibc and uses some parts of
eglibc that don't compile in standalone without this preprocessor definition.

This fixes the following error:

[ALL ] gcc -g -O2 -DNO_SYSCONF -DNO_UNCOMPRESS
-DLOCALE_PATH='"/usr/lib/locale:/usr/share/i18n"'
-DLOCALEDIR='"/usr/lib/locale"' -DLOCALE_ALIAS_PATH='"/usr/share/locale"'
-DCHARMAP_PATH='"/usr/share/i18n/charmaps"'
-DREPERTOIREMAP_PATH='"/usr/share/i18n/repertoiremaps"'
-DLOCSRCDIR='"/usr/share/i18n/locales"' -Iglibc/locale/programs -Iglibc/locale
-I/<snip>/.build/src/eglibc-localedef-2_14/include
-I/<snip>/.build/src/eglibc-localedef-2_14 -I.
-include /<snip>/.build/src/eglibc-localedef-2_14/include/always.h -Wall
-Wno-format -c -o locarchive.o glibc/locale/programs/locarchive.c
[ALL ] glibc/locale/programs/locarchive.c: In function 'enlarge_archive':
[ALL ] glibc/locale/programs/locarchive.c:303:21: warning: variable
'oldlocrectab' set but not used [-Wunused-but-set-variable]
[ALL ] In file included from glibc/locale/programs/locarchive.c:651:0:
[ALL ] glibc/locale/programs/../../intl/l10nflist.c: In function
'_nl_normalize_codeset':
[ERROR] glibc/locale/programs/../../intl/l10nflist.c:342:9: error:
'_nl_C_locobj_ptr' undeclared (first use in this function)
[ALL ] glibc/locale/programs/../../intl/l10nflist.c:342:9: note: each
undeclared identifier is reported only once for each function it appears in
[ALL ] glibc/locale/programs/locarchive.c: In function
'add_locales_to_archive':
[ALL ] glibc/locale/programs/locarchive.c:1450:7: warning: passing argument
1 of '__xpg_basename' discards 'const' qualifier from pointer target type
[enabled by default]
[ALL ] /usr/include/libgen.h:35:14: note: expected 'char *' but argument is
of type 'const char *'
[ERROR] make[1]: *** [locarchive.o] Error 1

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
(transplanted from 4cd9134739b594451794cf61a6e1b137422cdafd)

 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch

 Some notes on the 'bootstrap with or without libc headers' debate:

 http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html

 http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html

 diff -durN gcc-4.3.1.orig/gcc/configure gcc-4.3.1/gcc/configure

 --- gcc-4.3.1.orig/gcc/configure	2008-05-21 10:54:15.000000000 +0200

 +++ gcc-4.3.1/gcc/configure	2008-06-10 14:57:42.000000000 +0200

 @@ -13283,7 +13283,7 @@

  	    | powerpc*-*-*,powerpc64*-*-*)

  		CROSS="$CROSS -DNATIVE_CROSS" ;;

  	esac

 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

          SYSTEM_HEADER_DIR=$build_system_header_dir

  fi

 diff -durN gcc-4.3.1.orig/gcc/configure.ac gcc-4.3.1/gcc/configure.ac

 --- gcc-4.3.1.orig/gcc/configure.ac	2008-05-21 10:54:15.000000000 +0200

 +++ gcc-4.3.1/gcc/configure.ac	2008-06-10 14:57:42.000000000 +0200

 @@ -1749,7 +1749,7 @@

  	    | powerpc*-*-*,powerpc64*-*-*)

  		CROSS="$CROSS -DNATIVE_CROSS" ;;

  	esac

 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

          SYSTEM_HEADER_DIR=$build_system_header_dir 

  fi

 diff -durN gcc-4.3.1.orig/gcc/unwind-dw2.c gcc-4.3.1/gcc/unwind-dw2.c

 --- gcc-4.3.1.orig/gcc/unwind-dw2.c	2007-07-25 20:14:57.000000000 +0200

 +++ gcc-4.3.1/gcc/unwind-dw2.c	2008-06-10 14:57:42.000000000 +0200

 @@ -334,9 +334,11 @@

  }

  #endif

 +#ifndef inhibit_libc

  #ifdef MD_UNWIND_SUPPORT

  #include MD_UNWIND_SUPPORT

  #endif

 +#endif

  /* Extract any interesting information from the CIE for the translation

     unit F belongs to.  Return a pointer to the byte after the augmentation,