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+dnl
+dnl Copyright 2005 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_X86_64()
+#
+# Checks to see if we're on a x86_64 machine, and if so, ensure
+# that libdir ends in "64"
+#
+AC_DEFUN([GR_X86_64],[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ if test "$host_cpu" = "x86_64"; then
+ AC_MSG_CHECKING([libdir for lib64 suffix])
+ t=${libdir##*/lib}
+ if test "$t" != 64 && test -d /lib64 && ! test -L /lib64; then
+ libdir=${libdir}64
+ AC_MSG_RESULT([no. Setting libdir to $libdir])
+ else
+ AC_MSG_RESULT([yes])
+ fi
+ fi
+])
personal git repositories of Harald Welte. Your mileage may vary