diff options
Diffstat (limited to 'config/gr_lib64.m4')
| -rw-r--r-- | config/gr_lib64.m4 | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/config/gr_lib64.m4 b/config/gr_lib64.m4 new file mode 100644 index 000000000..f34779a49 --- /dev/null +++ b/config/gr_lib64.m4 @@ -0,0 +1,57 @@ +dnl +dnl Copyright 2005,2008 Free Software Foundation, Inc. +dnl +dnl This file is part of GNU Radio +dnl +dnl GNU Radio is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 3, or (at your option) +dnl any later version. +dnl +dnl GNU Radio is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with GNU Radio; see the file COPYING. If not, write to +dnl the Free Software Foundation, Inc., 51 Franklin Street, +dnl Boston, MA 02110-1301, USA. +dnl + +# GR_LIB64() +# +# Checks to see if we're on a x86_64 or powerpc64 machine, and if so, detemine +# if libdir should end in "64" or not. +# +# May append "64" to libdir. +# Sets gr_libdir_suffix to "" or "64" +# +AC_DEFUN([GR_LIB64],[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AC_PROG_CXX]) + + # If we're using g++, extract the first SEARCH_DIR("...") entry from the linker script + # and see if it contains a suffix after the final .../lib part of the path. + # (This works because the linker script varies depending on whether we're generating + # 32-bit or 64-bit executables) + + AC_MSG_CHECKING([libdir suffix]) + if test "$ac_cv_cxx_compiler_gnu" = "yes"; + then + gr_libdir_suffix=`$CXX -Wl,--verbose 2>/dev/null | sed -n -e '/SEARCH_DIR/{s/;.*$//; s,^.*/,,; s/".*$//; s/^lib//; p}'` + fi + AC_MSG_RESULT([$gr_libdir_suffix]) + AC_SUBST(gr_libdir_suffix) + + if test "$host_cpu" = "x86_64" || test "$host_cpu" = "powerpc64" ; then + AC_MSG_CHECKING([libdir for lib64 suffix]) + t=${libdir##*/lib} + if test "$t" != 64 && test "$gr_libdir_suffix" = "64"; then + libdir=${libdir}64 + AC_MSG_RESULT([no. Setting libdir to $libdir]) + else + AC_MSG_RESULT([yes]) + fi + fi +]) |