Houston, we have a trunk.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 44 insertions, 0 deletions

diff --git a/gr-howto-write-a-block/config/gr_set_md_cpu.m4 b/gr-howto-write-a-block/config/gr_set_md_cpu.m4
new file mode 100644
index 000000000..1bb2f3419
--- /dev/null
+++ b/gr-howto-write-a-block/config/gr_set_md_cpu.m4
@@ -0,0 +1,44 @@
+dnl
+dnl Copyright 2003 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 2, 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., 59 Temple Place - Suite 330,
+dnl Boston, MA 02111-1307, USA.
+dnl 
+
+AC_DEFUN([GR_SET_MD_CPU],[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_ARG_WITH(md-cpu,
+	[  --with-md-cpu=ARCH      set machine dependent speedups (auto)],
+		[cf_with_md_cpu="$withval"],
+		[cf_with_md_cpu="$host_cpu"])
+
+  AC_MSG_CHECKING([for machine dependent speedups])
+  case "$cf_with_md_cpu" in
+   x86 | i[[3-7]]86)	MD_CPU=x86	MD_SUBCPU=x86	;;
+   x86_64)		MD_CPU=x86	MD_SUBCPU=x86_64	;;
+#  sparc)       MD_CPU=sparc	 ;;
+   *)           MD_CPU=generic   ;;
+  esac
+  AC_MSG_RESULT($MD_CPU)
+  AC_SUBST(MD_CPU)
+  AC_SUBST(MD_SUBCPU) 
+
+  AM_CONDITIONAL(MD_CPU_x86,     test $MD_CPU = x86)
+  AM_CONDITIONAL(MD_SUBCPU_x86_64,  test $MD_SUBCPU = x86_64)
+  AM_CONDITIONAL(MD_CPU_generic, test $MD_CPU = generic)
+])
+