crosstool-ng: patches/binutils/2.16.1/150-stabs-tweak.patch@ff2181adbd28

cc/gcc: disable complibs if not selected

Force gcc to not link with some companion libraries when
there are not needed (because selected-out).

There is no option to tell gcc *not* to build the Graphite and/or
LTO stuff. They *will* be built if gcc finds the suitable companion
libraries. If we do not provide them, but the host has them, then
gcc *will* find them, and link with them.

Consider the following:
- host has suitable PPL and CLooG (eg. Debian Squeeze)
- user wants to build gcc>=4.4
- user de-selects GRAPHITE
- gcc will find the hosts PPL and CLooG, and will use them
- the user moves the toolchain to an older host that does
not have them (eg. Debian Lenny)
- the toolchain fails, when it was properly setup not to

So, explicitly tell gcc *not* to use unneeded companion libs.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     1 Signed-off-by: dank@kegel.com

     3 See http://sourceware.org/ml/binutils/2005-12/msg00270.html

     4 http://sourceware.org/ml/binutils-cvs/2005-12/msg00139.html

     6 STABS hash table size change, backported from the binutils CVS tree.  Here's

     7 the CVS log comment for the original change:

     9 revision 1.25

    10 date: 2005/12/29 10:29:23;  author: nickc;  state: Exp;  lines: +2 -3

    11 (_bfd_link_section_stabs): Use bfd_hash_table_init rather than

    12 bfd_hash_table_init_n(...,251) so that the size of the hash table can be

    13 controlled by the user.

    15 --- binutils/bfd/stabs.c.old	4 May 2005 15:53:39 -0000	1.24

    16 +++ binutils/bfd/stabs.c	29 Dec 2005 10:29:23 -0000	1.25

    17 @@ -194,9 +194,8 @@

    18  	goto error_return;

    19        /* Make sure the first byte is zero.  */

    20        (void) _bfd_stringtab_add (sinfo->strings, "", TRUE, TRUE);

    21 -      if (! bfd_hash_table_init_n (&sinfo->includes,

    22 -				   stab_link_includes_newfunc,

    23 -				   251))

    24 +      if (! bfd_hash_table_init (&sinfo->includes,

    25 +				 stab_link_includes_newfunc))

    26  	goto error_return;

    27        sinfo->stabstr = bfd_make_section_anyway (abfd, ".stabstr");

    28        if (sinfo->stabstr == NULL)

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Sep 12 23:51:25 2010 +0200 (2010-09-12)
changeset 2123	ff2181adbd28
permissions	-rw-r--r--