Subversion Repositories openrisc_2011-10-31

dnl

dnl Check whether _Unwind_GetIPInfo is available.

dnl

AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [

  AC_LANG_SAVE

  AC_LANG_CPLUSPLUS

  ac_save_CXXFLAGS="$CXXFLAGS"

  CXXFLAGS="$CXXFLAGS -fno-exceptions"

  AC_MSG_CHECKING([for _Unwind_GetIPInfo])

  AC_CACHE_VAL(gcc_cv_getipinfo, [

  AC_TRY_LINK([extern "C" { extern void _Unwind_GetIPInfo(); }],

      [_Unwind_GetIPInfo();],

      [gcc_cv_getipinfo=yes],

      [gcc_cv_getipinfo=no])

  ])

  if test $gcc_cv_getipinfo = yes; then

    AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.])

  fi

  AC_MSG_RESULT($gcc_cv_getipinfo)

  CXXFLAGS="$ac_save_CXXFLAGS"

  AC_LANG_RESTORE

])