2 dnl Copyright 2005,2008 Free Software Foundation, Inc.
4 dnl This file is part of GNU Radio
6 dnl GNU Radio is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3, or (at your option)
11 dnl GNU Radio is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with GNU Radio; see the file COPYING. If not, write to
18 dnl the Free Software Foundation, Inc., 51 Franklin Street,
19 dnl Boston, MA 02110-1301, USA.
24 # Checks to see if we're on a x86_64 or powerpc64 machine, and if so, detemine
25 # if libdir should end in "64" or not.
27 # May append "64" to libdir.
28 # Sets gr_libdir_suffix to "" or "64"
31 AC_REQUIRE([AC_CANONICAL_HOST])
32 AC_REQUIRE([AC_PROG_CXX])
34 # If we're using g++, extract the first SEARCH_DIR("...") entry from the linker script
35 # and see if it contains a suffix after the final .../lib part of the path.
36 # (This works because the linker script varies depending on whether we're generating
37 # 32-bit or 64-bit executables)
39 AC_MSG_CHECKING([libdir suffix])
40 if test "$ac_cv_cxx_compiler_gnu" = "yes";
42 gr_libdir_suffix=`$CXX -Wl,--verbose 2>/dev/null | sed -n -e '/SEARCH_DIR/{s/;.*$//; s,^.*/,,; s/".*$//; s/^lib//; p}'`
44 AC_MSG_RESULT([$gr_libdir_suffix])
45 AC_SUBST(gr_libdir_suffix)
47 if test "$host_cpu" = "x86_64" || test "$host_cpu" = "powerpc64" ; then
48 AC_MSG_CHECKING([libdir for lib64 suffix])
50 if test "$t" != 64 && test "$gr_libdir_suffix" = "64"; then
52 AC_MSG_RESULT([no. Setting libdir to $libdir])