Fix for compiling glibc with -march=i686 specified.
	The patch below found at: http://permalink.gmane.org/gmane.linux.lfs.devel/9758,
	a nice discussion (with a comment of the glibc maintainer) can be found here:
	http://old.nabble.com/-RFC-PATCH--glibc-doesn%27t-build-with-%22gcc--march%3Di686%22-td17442608.html
	
	To me, this simply shows once more how fucked up things can be. E.g. the (related) bug report here:
	http://bugs.gentoo.org/show_bug.cgi?id=201815. There are lots of duplicates to it, many people are
	affected, one can find really elaborate reports. And the responsible gentoo developers are too
	elite to even point to the actual patch fixing the issue.
diff -Naur glibc-2.11.1-orig/nptl/sysdeps/pthread/pt-initfini.c glibc-2.11.1/nptl/sysdeps/pthread/pt-initfini.c
--- glibc-2.11.1-orig/nptl/sysdeps/pthread/pt-initfini.c	2009-12-08 20:10:20.000000000 +0000
+++ glibc-2.11.1/nptl/sysdeps/pthread/pt-initfini.c	2010-04-17 02:24:02.000000000 +0100
@@ -45,6 +45,11 @@
 /* Embed an #include to pull in the alignment and .end directives. */
 asm ("\n#include \"defs.h\"");
 
+asm ("\n#if defined __i686 && defined __ASSEMBLER__");
+asm ("\n#undef __i686");
+asm ("\n#define __i686 __i686");
+asm ("\n#endif");
+
 /* The initial common code ends here. */
 asm ("\n/*@HEADER_ENDS*/");
 
diff -Naur glibc-2.11.1-orig/sysdeps/unix/sysv/linux/i386/sysdep.h glibc-2.11.1/sysdeps/unix/sysv/linux/i386/sysdep.h
--- glibc-2.11.1-orig/sysdeps/unix/sysv/linux/i386/sysdep.h	2009-12-08 20:10:20.000000000 +0000
+++ glibc-2.11.1/sysdeps/unix/sysv/linux/i386/sysdep.h	2010-04-17 02:24:02.000000000 +0100
@@ -29,6 +29,10 @@
 #include <dl-sysdep.h>
 #include <tls.h>
 
+#if defined __i686 && defined __ASSEMBLER__
+#undef __i686
+#define __i686 __i686
+#endif
 
 /* For Linux we can use the system call table in the header file
 	/usr/include/asm/unistd.h