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)

	With latest versions of glibc, a lot of apps failed on a PaX enabled

	system with:

		 cannot enable executable stack as shared object requires: Permission denied

	This is due to PaX 'exec-protecting' the stack, and ld.so then trying

	to make the stack executable due to some libraries not containing the

	PT_GNU_STACK section.  Bug #32960.  <azarah@gentoo.org> (12 Nov 2003).

	Patch also NPTL. Bug #116086. <kevquinn@gentoo.org> (20 Dec 2005).

diff -durN glibc-2.12.1.orig/nptl/allocatestack.c glibc-2.12.1/nptl/allocatestack.c

--- glibc-2.12.1.orig/nptl/allocatestack.c	2009-01-29 21:34:16.000000000 +0100

+++ glibc-2.12.1/nptl/allocatestack.c	2009-11-13 00:50:33.000000000 +0100

@@ -329,7 +329,8 @@

 # error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"

 #endif

   if (mprotect (stack, len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)

-    return errno;

+    if (errno != EACCES) /* PAX is enabled */

+    	return errno;

   return 0;

 }

diff -durN glibc-2.12.1.orig/sysdeps/unix/sysv/linux/dl-execstack.c glibc-2.12.1/sysdeps/unix/sysv/linux/dl-execstack.c

--- glibc-2.12.1.orig/sysdeps/unix/sysv/linux/dl-execstack.c	2006-01-08 09:21:15.000000000 +0100

+++ glibc-2.12.1/sysdeps/unix/sysv/linux/dl-execstack.c	2009-11-13 00:50:33.000000000 +0100

@@ -63,7 +63,10 @@

       else

 # endif

 	{

-	  result = errno;

+	  if (errno == EACCES)  /* PAX is enabled */

+	    result = 0;

+	  else

+	    result = errno;

 	  goto out;

 	}

     }

@@ -89,7 +92,12 @@

 	page -= size;

       else

 	{

-	  if (errno != ENOMEM)	/* Unexpected failure mode.  */

+	  if (errno == EACCES)		/* PAX is enabled */

+	    {

+	      result = 0;

+	      goto out;

+	    }

+	  else if (errno != ENOMEM)	/* Unexpected failure mode.  */

 	    {

 	      result = errno;

 	      goto out;

@@ -115,7 +123,12 @@

 	page += size;

       else

 	{

-	  if (errno != ENOMEM)	/* Unexpected failure mode.  */

+	  if (errno == EACCES)		/* PAX is enabled */

+	    {

+	      result = 0;

+	      goto out;

+	    }

+	  else if (errno != ENOMEM)	/* Unexpected failure mode.  */

 	    {

 	      result = errno;

 	      goto out;