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patches/glibc/ports-2.10.1/290-undefine-__i686.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jan 17 23:06:02 2010 +0100 (2010-01-17)
changeset 1740 c57458bb354d
permissions -rw-r--r--
configure: do not require hg when configuring in an hg clone

When configuring in an hg clone, we need hg to compute the version string.
It can happen that users do not have Mercurial (eg. if they got a snapshot
rather that they did a full clone). In this case, we can still run, of
course, so simply fill the version string with a sufficiently explicit
value, that does not require hg. The date is a good candidate. 
     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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