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patches/glibc/2.9/430-2.7-cross-compile-nptl.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Jan 26 00:04:41 2011 +0100 (2011-01-26)
branch1.9
changeset 2291 075510bba768
parent 1201 c9967a6e3b25
permissions -rw-r--r--
libc/mingw: do not remove support symlink

Under mingw, it seems that there is a mix between the traditional /usr
directory, and a similar-purposed /mingw directory (both in the sysroot).

Currently, we create /mingw as a symlink to /usr, and we removed it in
the libc-finish step.

Unfortunately, this prevents the pre-processor to find the headers.
Keeping the symlink makes it magically work...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from fa5c70b11fecf390c78780fe8f8ba0a836a59e92) 
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/5070_all_glibc-2.7-cross-compile-nptl.patch

     2 

     3 -= BEGIN original header =-

     4 A little hack for cross-compiling NPTL

     5 

     6 http://sourceware.org/ml/libc-alpha/2005-02/msg00043.html

     7 

     8 -= END original header =-

     9 

    10 diff -durN glibc-2_9.orig/nptl/sysdeps/pthread/configure glibc-2_9/nptl/sysdeps/pthread/configure

    11 --- glibc-2_9.orig/nptl/sysdeps/pthread/configure	2007-10-17 00:24:30.000000000 +0200

    12 +++ glibc-2_9/nptl/sysdeps/pthread/configure	2009-02-02 22:01:28.000000000 +0100

    13 @@ -78,6 +78,10 @@

    14  fi

    15  { echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5

    16  echo "${ECHO_T}$libc_cv_forced_unwind" >&6; }

    17 +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then

    18 +  echo "$as_me:$LINENO: forcing libc_cv_forced_unwind = yes for cross-compile"

    19 +  libc_cv_forced_unwind=yes

    20 +fi

    21  if test $libc_cv_forced_unwind = yes; then

    22    cat >>confdefs.h <<\_ACEOF

    23  #define HAVE_FORCED_UNWIND 1

    24 @@ -141,6 +145,10 @@

    25  { echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5

    26  echo "${ECHO_T}$libc_cv_c_cleanup" >&6; }

    27    CFLAGS="$old_CFLAGS"

    28 +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then

    29 +    echo "$as_me:$LINENO: result: forcing libc_cv_c_cleanup = yes for cross-compile"

    30 +    libc_cv_c_cleanup=yes

    31 +  fi

    32    if test $libc_cv_c_cleanup = no; then

    33      { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5

    34  echo "$as_me: error: the compiler must support C cleanup handling" >&2;}

    35 diff -durN glibc-2_9.orig/nptl/sysdeps/pthread/configure.in glibc-2_9/nptl/sysdeps/pthread/configure.in

    36 --- glibc-2_9.orig/nptl/sysdeps/pthread/configure.in	2003-12-03 07:50:01.000000000 +0100

    37 +++ glibc-2_9/nptl/sysdeps/pthread/configure.in	2009-02-02 22:01:28.000000000 +0100

    38 @@ -28,6 +28,9 @@

    39  struct _Unwind_Context *context;

    40  _Unwind_GetCFA (context)],

    41  libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])

    42 +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then

    43 +  libc_cv_forced_unwind=yes

    44 +fi

    45  if test $libc_cv_forced_unwind = yes; then

    46    AC_DEFINE(HAVE_FORCED_UNWIND)

    47  dnl Check for C cleanup handling.

    48 @@ -41,6 +44,9 @@

    49    puts ("test")],

    50  libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])

    51    CFLAGS="$old_CFLAGS"

    52 +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then

    53 +    libc_cv_c_cleanup=yes

    54 +  fi

    55    if test $libc_cv_c_cleanup = no; then

    56      AC_MSG_ERROR([the compiler must support C cleanup handling])

    57    fi
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