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)

# Build script for ltrace

do_debug_ltrace_get() {

    CT_GetFile "ltrace_${CT_LTRACE_VERSION}.orig" .tar.gz               \

               {ftp,http}://ftp.de.debian.org/debian/pool/main/l/ltrace/

    # Create a link so that the following steps are easier to do:

    CT_Pushd "${CT_TARBALLS_DIR}"

    ltrace_ext=$(CT_GetFileExtension "ltrace_${CT_LTRACE_VERSION}.orig")

    ln -sf "ltrace_${CT_LTRACE_VERSION}.orig${ltrace_ext}"              \

           "ltrace-${CT_LTRACE_VERSION}${ltrace_ext}"

    CT_Popd

}

do_debug_ltrace_extract() {

    CT_Extract "ltrace-${CT_LTRACE_VERSION}"

    CT_Patch "ltrace" "${CT_LTRACE_VERSION}"

}

do_debug_ltrace_build() {

    local ltrace_host

    CT_DoStep INFO "Installing ltrace"

    CT_DoLog EXTRA "Copying sources to build dir"

    CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/ltrace-${CT_LTRACE_VERSION}" \

                            "${CT_BUILD_DIR}/build-ltrace"

    CT_Pushd "${CT_BUILD_DIR}/build-ltrace"

    CT_DoLog EXTRA "Configuring ltrace"

    # ltrace-0.5.3, and later, don't use GNU Autotools configure script anymore

    if [ "${CT_LTRACE_0_5_3_or_later}" = "y" ]; then

        case "${CT_ARCH}:${CT_ARCH_BITNESS}" in

            x86:32)     ltrace_host="i386";;

            x86:64)     ltrace_host="x86_64";;

            powerpc:*)  ltrace_host="ppc";;

            mips:*)     ltrace_host="mipsel";;

            *)          ltrace_host="${CT_ARCH}";;

        esac

        CT_DoExecLog CFG                \

        CC="${CT_TARGET}-${CT_CC}"      \

        AR="${CT_TARGET}-ar"            \

        HOST="${ltrace_host}"           \

        HOST_OS="${CT_TARGET_KERNEL}"   \

        CFLAGS="${CT_TARGET_CFLAGS}"    \

        ./configure --prefix=/usr

    else

        CT_DoExecLog CFG        \

        ./configure             \

            --build=${CT_BUILD} \

            --host=${CT_TARGET} \

            --prefix=/usr

    fi

    CT_DoLog EXTRA "Building ltrace"

    CT_DoExecLog ALL make

    CT_DoLog EXTRA "Installing ltrace"

    CT_DoExecLog ALL make DESTDIR="${CT_DEBUGROOT_DIR}" install

    CT_Popd

    CT_EndStep

}