1.1 --- a/patches/glibc/2.2.5/glibc-2.2.5-allow-gcc-3.4-weakextern.patch	Tue Aug 14 19:32:22 2007 +0000
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,48 +0,0 @@
     1.4 -Suggested by Jake Page <jake at cs dot stanford dot edu>
     1.5 -in http://sources.redhat.com/ml/crossgcc/2004-07/msg00169.html
     1.6 -but the libc-symbols.h fragment has been reworked to fix typos
     1.7 -and to still work on gcc-2.95.3, which lacks _Pragma.
     1.8 -
     1.9 -His comment was:
    1.10 - Fixes gcc-3.4 optimizing out comparisons to weak external symbols in code
    1.11 - like:
    1.12 -  if (__pthread_mutex_init != NULL)
    1.13 -    __pthread_mutex_init(...);
    1.14 - that causes segfaults during libc init when not linked to libpthread
    1.15 -
    1.16 -diff -uNr glibc-2.2.5-orig/resolv/res_libc.c glibc-2.2.5/resolv/res_libc.c
    1.17 ---- glibc-2.2.5-orig/resolv/res_libc.c	2001-02-12 12:23:34.000000000 -0800
    1.18 -+++ glibc-2.2.5/resolv/res_libc.c	2004-07-27 22:56:32.000000000 -0700
    1.19 -@@ -84,7 +84,8 @@
    1.20 - 
    1.21 - #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2)
    1.22 - # undef res_init
    1.23 --strong_alias (__res_init, __res_init_weak);
    1.24 -+extern int __res_init_weak (void);
    1.25 - weak_extern (__res_init_weak);
    1.26 -+strong_alias (__res_init, __res_init_weak);
    1.27 - compat_symbol (libc, __res_init_weak, res_init, GLIBC_2_0);
    1.28 - #endif
    1.29 ---- glibc-2.2.5/include/libc-symbols.h.old	Fri Aug 13 04:20:55 2004
    1.30 -+++ glibc-2.2.5/include/libc-symbols.h	Fri Aug 13 04:37:06 2004
    1.31 -@@ -108,10 +108,16 @@
    1.32 - 
    1.33 - /* Declare SYMBOL as weak undefined symbol (resolved to 0 if not defined).  */
    1.34 - #  define weak_extern(symbol) _weak_extern (symbol)
    1.35 --#  ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
    1.36 --#   define _weak_extern(symbol) asm (".weakext " __SYMBOL_PREFIX #symbol);
    1.37 --#  else
    1.38 --#   define _weak_extern(symbol)    asm (".weak " __SYMBOL_PREFIX #symbol);
    1.39 -+#  if __GNUC__ >= 3
    1.40 -+    /* see http://sources.redhat.com/ml/libc-alpha/2003-01/msg00043.html */
    1.41 -+#   define __weak_extern_1(expr) _Pragma(#expr)
    1.42 -+#   define _weak_extern(symbol) __weak_extern_1(weak symbol)
    1.43 -+#  else /* __GNUC__ == 2 */
    1.44 -+#   ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
    1.45 -+#    define _weak_extern(symbol) asm (".weakext " __SYMBOL_PREFIX #symbol);
    1.46 -+#   else
    1.47 -+#    define _weak_extern(symbol)    asm (".weak " __SYMBOL_PREFIX #symbol);
    1.48 -+#   endif
    1.49 - #  endif
    1.50 - 
    1.51 - # else