dnl configure fragment for new libpthread implementation.
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

if test "x$libc_cv_gcc___thread" != xyes; then
  AC_MSG_ERROR(compiler support for __thread is required)
fi

dnl Iff <unwind.h> is available, make sure it is the right one and it
dnl contains struct _Unwind_Exception.
AC_CACHE_CHECK(dnl
for forced unwind support, libc_cv_forced_unwind, [dnl
AC_TRY_LINK([#include <unwind.h>], [
struct _Unwind_Exception exc;
struct _Unwind_Context *context;
_Unwind_GetCFA (context)],
libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])
if test $libc_cv_forced_unwind = yes; then
  AC_DEFINE(HAVE_FORCED_UNWIND)
fi