# signed.m4 serial 2dnl Copyright (C) 2001-2002, 2006 Free Software Foundation, Inc.dnl This file is free software; the Free Software Foundationdnl gives unlimited permission to copy and/or distribute it,dnl with or without modifications, as long as this notice is preserved.dnl From Bruno Haible.AC_DEFUN([bh_C_SIGNED],[  AC_CACHE_CHECK([for signed], bh_cv_c_signed,   [AC_TRY_COMPILE(, [signed char x; return !x;],      bh_cv_c_signed=yes, bh_cv_c_signed=no)])  if test $bh_cv_c_signed = no; then    AC_DEFINE(signed, ,              [Define to empty if the C compiler doesn't support this keyword.])  fi])