crosstool-ng: patches/binutils/2.21.1a/300-012_check_ldrunpath

scripts: unset CONFIG_SITE

Some distributions (eg. openSUSE 12.1) systematically export
the CONFIG_SITE environment variable to point to a custom
script setting misc paths for ./configure.

This can, and does, break when cross-compiling for architectures
that are not supported by this script.

The simple workaround is to unset this variable.
NB: buildroot has a similar fix:
http://git.buildroot.org/buildroot/commit/?id=12c9f7dd6dee9c6029b4f9a12d6aac1516911ab4

Reported-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 21f4f28e60ec0342133086c9a51e7f0e5b181fb8)

     1 diff -durN binutils-2.21.1.orig/ld/emultempl/elf32.em binutils-2.21.1/ld/emultempl/elf32.em

     2 --- binutils-2.21.1.orig/ld/emultempl/elf32.em	2011-06-27 09:39:14.000000000 +0200

     3 +++ binutils-2.21.1/ld/emultempl/elf32.em	2011-09-12 13:39:08.808908274 +0200

     4 @@ -1272,6 +1272,8 @@

     5  	      && command_line.rpath == NULL)

     6  	    {

     7  	      lib_path = (const char *) getenv ("LD_RUN_PATH");

     8 +	      if ((lib_path) && (strlen (lib_path) == 0))

     9 +	      	lib_path = NULL;

    10  	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,

    11  						      force))

    12  		break;

    13 @@ -1499,6 +1501,8 @@

    14    rpath = command_line.rpath;

    15    if (rpath == NULL)

    16      rpath = (const char *) getenv ("LD_RUN_PATH");

    17 +  if ((rpath) && (strlen (rpath) == 0))

    18 +  	rpath = NULL;

    20    for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)

    21      if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Mon Dec 12 21:41:16 2011 +0200 (2011-12-12)
branch	1.13
changeset 2845	0dc9d4931246
permissions	-rw-r--r--