2 dnl Copyright 2003,2008,2009 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.
22 AC_DEFUN([_TRY_ADD_ALTIVEC],
24 LF_CHECK_CC_FLAG([-mabi=altivec -maltivec])
25 LF_CHECK_CXX_FLAG([-mabi=altivec -maltivec])
28 AC_DEFUN([_FIND_ARM_ISA],
30 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
31 [[#ifndef __ARM_ARCH_5__
38 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
39 [[#ifndef __ARM_ARCH_7A__
48 AC_DEFUN([GR_SET_MD_CPU],[
49 AC_REQUIRE([AC_CANONICAL_HOST])
51 AC_HELP_STRING([--with-md-cpu=ARCH],[set machine dependent speedups (auto)]),
52 [cf_with_md_cpu="$withval"],
54 dnl see if the user has specified --host or --build, via 'cross_compiling'
55 if test "$cross_compiling" != no; then
56 dnl when cross-compiling, because the user specified it either via
57 dnl --target or --build, just keep the user's specs & hope for the best.
58 cf_with_md_cpu="$host_cpu"
60 dnl when the user didn't specify --target or --build, on Darwin 10
61 dnl (OSX 10.6.0 and .1) and GNU libtoool 2.2.6, 'configure' doesn't
62 dnl figure out the CPU type correctly, so do it by hand here using
63 dnl the sizeof (void*): if 4 then use i386, and otherwise use x86_64.
66 AC_CHECK_SIZEOF(void*)
67 if test "$ac_cv_sizeof_voidp" = 4; then
70 cf_with_md_cpu="x86_64"
74 cf_with_md_cpu="$host_cpu"
79 case "$cf_with_md_cpu" in
80 x86 | i[[3-7]]86) MD_CPU=x86 MD_SUBCPU=x86 ;;
81 x86_64) MD_CPU=x86 MD_SUBCPU=x86_64 ;;
82 powerpc*) MD_CPU=powerpc ;;
85 if test $is_armv5 = yes; then MD_CPU=armv5;
86 elif test $is_armv7_a = yes; then MD_CPU=armv7_a;
87 else MD_CPU=generic; fi
92 AC_ARG_ENABLE(altivec,
93 AC_HELP_STRING([--enable-altivec],[enable altivec on PowerPC (yes)]),
94 [ if test $MD_CPU = powerpc; then
96 (no) MD_CPU=generic ;;
97 (yes) _TRY_ADD_ALTIVEC ;;
98 (*) AC_MSG_ERROR([Invalid argument ($enableval) to --enable-altivec]) ;;
101 [ if test $MD_CPU = powerpc; then _TRY_ADD_ALTIVEC fi])
104 AC_MSG_CHECKING([for machine dependent speedups])
105 AC_MSG_RESULT($MD_CPU)
109 AM_CONDITIONAL(MD_CPU_x86, test "$MD_CPU" = "x86")
110 AM_CONDITIONAL(MD_SUBCPU_x86_64, test "$MD_SUBCPU" = "x86_64")
111 AM_CONDITIONAL(MD_CPU_powerpc, test "$MD_CPU" = "powerpc")
112 AM_CONDITIONAL(MD_CPU_armv5, test "$MD_CPU" = "armv5")
113 AM_CONDITIONAL(MD_CPU_armv7_a, test "$MD_CPU" = "armv7_a")
114 AM_CONDITIONAL(MD_CPU_generic, test "$MD_CPU" = "generic")