yann@1625: A little hack for cross-compiling NPTL
yann@1625: 
yann@1625: http://sourceware.org/ml/libc-alpha/2005-02/msg00043.html
yann@1625: 
yann@1625: diff -durN glibc-2.10.1.orig/nptl/sysdeps/pthread/configure glibc-2.10.1/nptl/sysdeps/pthread/configure
yann@1625: --- glibc-2.10.1.orig/nptl/sysdeps/pthread/configure	2009-05-17 14:19:31.000000000 +0200
yann@1625: +++ glibc-2.10.1/nptl/sysdeps/pthread/configure	2009-11-13 00:50:43.000000000 +0100
yann@1625: @@ -78,6 +78,10 @@
yann@1625:  fi
yann@1625:  { echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5
yann@1625:  echo "${ECHO_T}$libc_cv_forced_unwind" >&6; }
yann@1625: +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then
yann@1625: +  echo "$as_me:$LINENO: forcing libc_cv_forced_unwind = yes for cross-compile"
yann@1625: +  libc_cv_forced_unwind=yes
yann@1625: +fi
yann@1625:  if test $libc_cv_forced_unwind = yes; then
yann@1625:    cat >>confdefs.h <<\_ACEOF
yann@1625:  #define HAVE_FORCED_UNWIND 1
yann@1625: @@ -141,6 +145,10 @@
yann@1625:  { echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
yann@1625:  echo "${ECHO_T}$libc_cv_c_cleanup" >&6; }
yann@1625:    CFLAGS="$old_CFLAGS"
yann@1625: +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then
yann@1625: +    echo "$as_me:$LINENO: result: forcing libc_cv_c_cleanup = yes for cross-compile"
yann@1625: +    libc_cv_c_cleanup=yes
yann@1625: +  fi
yann@1625:    if test $libc_cv_c_cleanup = no; then
yann@1625:      { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
yann@1625:  echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
yann@1625: diff -durN glibc-2.10.1.orig/nptl/sysdeps/pthread/configure.in glibc-2.10.1/nptl/sysdeps/pthread/configure.in
yann@1625: --- glibc-2.10.1.orig/nptl/sysdeps/pthread/configure.in	2003-12-03 07:50:01.000000000 +0100
yann@1625: +++ glibc-2.10.1/nptl/sysdeps/pthread/configure.in	2009-11-13 00:50:43.000000000 +0100
yann@1625: @@ -28,6 +28,9 @@
yann@1625:  struct _Unwind_Context *context;
yann@1625:  _Unwind_GetCFA (context)],
yann@1625:  libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])
yann@1625: +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then
yann@1625: +  libc_cv_forced_unwind=yes
yann@1625: +fi
yann@1625:  if test $libc_cv_forced_unwind = yes; then
yann@1625:    AC_DEFINE(HAVE_FORCED_UNWIND)
yann@1625:  dnl Check for C cleanup handling.
yann@1625: @@ -41,6 +44,9 @@
yann@1625:    puts ("test")],
yann@1625:  libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])
yann@1625:    CFLAGS="$old_CFLAGS"
yann@1625: +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then
yann@1625: +    libc_cv_c_cleanup=yes
yann@1625: +  fi
yann@1625:    if test $libc_cv_c_cleanup = no; then
yann@1625:      AC_MSG_ERROR([the compiler must support C cleanup handling])
yann@1625:    fi