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)

 #!/bin/sh

 # Check ncurses compatibility

 # What library to link

 ldflags()

 {

 	for ext in so a dylib ; do

 		for lib in ncursesw ncurses curses ; do

 			$cc -print-file-name=lib${lib}.${ext} | grep -q /

 			if [ $? -eq 0 ]; then

 				echo "-l${lib}"

 				exit

 			fi

 		done

 	done

 	exit 1

 }

 # Where is ncurses.h?

 ccflags()

 {

 	if [ -f /usr/include/ncurses/ncurses.h ]; then

 		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'

 	elif [ -f /usr/include/ncurses/curses.h ]; then

 		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'

 	elif [ -f /usr/include/ncursesw/curses.h ]; then

 		echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'

 	elif [ -f /usr/include/ncurses.h ]; then

 		echo '-DCURSES_LOC="<ncurses.h>"'

 	else

 		echo '-DCURSES_LOC="<curses.h>"'

 	fi

 }

 # Temp file, try to clean up after us

 tmp=.lxdialog.tmp

 trap "rm -f $tmp" 0 1 2 3 15

 # Check if we can link to ncurses

 check() {

         $cc -xc - -o $tmp 2>/dev/null <<'EOF'

 #include CURSES_LOC

 main() {}

 EOF

 	if [ $? != 0 ]; then

 	    echo " *** Unable to find the ncurses libraries or the"       1>&2

 	    echo " *** required header files."                            1>&2

 	    echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2

 	    echo " *** "                                                  1>&2

 	    echo " *** Install ncurses (ncurses-devel) and try again."    1>&2

 	    echo " *** "                                                  1>&2

 	    exit 1

 	fi

 }

 usage() {

 	printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"

 }

 if [ $# -eq 0 ]; then

 	usage

 	exit 1

 fi

 cc=""

 case "$1" in

 	"-check")

 		shift

 		cc="$@"

 		check

 		;;

 	"-ccflags")

 		ccflags

 		;;

 	"-ldflags")

 		shift

 		cc="$@"

 		ldflags

 		;;

 	"*")

 		usage

 		exit 1

 		;;

 esac