config/bfd64.m4

   1 dnl
   2 dnl   Copyright (C) 2012-2022 Free Software Foundation, Inc.
   3 dnl
   4 dnl This file is free software; you can redistribute it and/or modify
   5 dnl it under the terms of the GNU General Public License as published by
   6 dnl the Free Software Foundation; either version 3 of the License, or
   7 dnl (at your option) any later version.
   8 dnl
   9 dnl This program is distributed in the hope that it will be useful,
  10 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 dnl GNU General Public License for more details.
  13 dnl
  14 dnl You should have received a copy of the GNU General Public License
  15 dnl along with this program; see the file COPYING3.  If not see
  16 dnl <http://www.gnu.org/licenses/>.
  17 dnl
  18
  19 dnl See whether 64-bit bfd lib has been enabled.
  20 AC_DEFUN([BFD_64_BIT], [dnl
  21 AC_ARG_ENABLE(64-bit-bfd,
  22   AS_HELP_STRING([--enable-64-bit-bfd],
  23                  [64-bit support (on hosts with narrower word sizes)]),
  24   [AS_CASE([$enableval],
  25            [yes|no], [],
  26            [*], [AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option)])],
  27   [enable_64_bit_bfd=no])
  28
  29 dnl If the host is 64-bit, then 64-bit bfd is enabled automatically.
  30 AS_IF([test "x$enable_64_bit_bfd" = "xno"], [dnl
  31   AC_CHECK_SIZEOF(void *)
  32   AS_IF([test "x$ac_cv_sizeof_void_p" = "x8"], [enable_64_bit_bfd=yes])
  33 ])
  34
  35 AM_CONDITIONAL([ENABLE_BFD_64_BIT], [test "x$enable_64_bit_bfd" = "xyes"])
  36 ])