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patches/glibc/ports-2.10.1/290-undefine-__i686.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Aug 23 14:32:16 2010 +0200 (2010-08-23)
changeset 2100 f9fcfc002c8a
permissions -rw-r--r--
debug/gdb: install dependable libs in a generic target static libs dir

For now, ncurses is the only dependable target library built for gdb.
But expat is coming, and there's no reason to install each library in
its own place.

So, install ncurses in a generic directory, where other dependable
libraries can be installed as well.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 If gcc is configured to generate i686 code or better by default (like 

     2 when using the --with-arch=pentium3 configure option), then the __i686

     3 macro will always be defined automatically and thus screw up the

     4 compilation of some .S files.

     5 http://bugs.gentoo.org/131108

     6 http://sourceware.org/ml/libc-alpha/2006-04/msg00090.html

     7 

     8 2006-04-25  Mike Frysinger  <vapier@gentoo.org>

     9 

    10 	* sysdeps/i386/sysdep.h (__i686): Undefine.

    11 

    12 diff -durN glibc-2.10.1.orig/nptl/sysdeps/pthread/pt-initfini.c glibc-2.10.1/nptl/sysdeps/pthread/pt-initfini.c

    13 --- glibc-2.10.1.orig/nptl/sysdeps/pthread/pt-initfini.c	2007-06-17 20:02:01.000000000 +0200

    14 +++ glibc-2.10.1/nptl/sysdeps/pthread/pt-initfini.c	2009-11-13 00:50:22.000000000 +0100

    15 @@ -45,6 +45,9 @@

    16  /* Embed an #include to pull in the alignment and .end directives. */

    17  asm ("\n#include \"defs.h\"");

    18  

    19 +/* Embed an #include to pull in asm settings. */

    20 +asm ("\n#ifdef __i686__\n#include <sysdep.h>\n#endif");

    21 +

    22  /* The initial common code ends here. */

    23  asm ("\n/*@HEADER_ENDS*/");

    24  

    25 diff -durN glibc-2.10.1.orig/sysdeps/i386/sysdep.h glibc-2.10.1/sysdeps/i386/sysdep.h

    26 --- glibc-2.10.1.orig/sysdeps/i386/sysdep.h	2006-10-28 08:44:03.000000000 +0200

    27 +++ glibc-2.10.1/sysdeps/i386/sysdep.h	2009-11-13 00:50:22.000000000 +0100

    28 @@ -18,6 +18,14 @@

    29     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

    30     02111-1307 USA.  */

    31  

    32 +/*

    33 + * When building for i686 targets or better, gcc automatically defines

    34 + * '__i686' to '1' for us which causes trouble when using section names

    35 + * like '__i686.get_pc_thunk.reg'.  Since we check for __i686__ in the

    36 + * code, killing '__i686' shouldn't be a problem.

    37 + */

    38 +#undef __i686

    39 +

    40  #include <sysdeps/generic/sysdep.h>

    41  

    42  #ifdef	__ASSEMBLER__
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