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dnl
dnl Copyright 2003,2008,2009 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
AC_DEFUN([_TRY_ADD_ALTIVEC],
[
LF_CHECK_CC_FLAG([-mabi=altivec -maltivec])
LF_CHECK_CXX_FLAG([-mabi=altivec -maltivec])
])
AC_DEFUN([_FIND_ARM_ISA],
[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#ifndef __ARM_ARCH_5__
#error "Not armv5"
#endif
]])],
[is_armv5=yes],
[is_armv5=no])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#ifndef __ARM_ARCH_7A__
#error "Not armv7-a"
#endif
]])],
[is_armv7_a=yes],
[is_armv7_a=no])
])
AC_DEFUN([GR_SET_MD_CPU],[
AC_REQUIRE([AC_CANONICAL_HOST])
AC_ARG_WITH(md-cpu,
AC_HELP_STRING([--with-md-cpu=ARCH],[set machine dependent speedups (auto)]),
[cf_with_md_cpu="$withval"],
[cf_with_md_cpu="$host_cpu"])
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 ;;
powerpc*) MD_CPU=powerpc ;;
arm)
_FIND_ARM_ISA
if test $is_armv5 = yes; then MD_CPU=armv5;
elif test $is_armv7_a = yes; then MD_CPU=armv7_a;
else MD_CPU=generic; fi
;;
*) MD_CPU=generic ;;
esac
AC_ARG_ENABLE(altivec,
AC_HELP_STRING([--enable-altivec],[enable altivec on PowerPC (yes)]),
[ if test $MD_CPU = powerpc; then
case "$enableval" in
(no) MD_CPU=generic ;;
(yes) _TRY_ADD_ALTIVEC ;;
(*) AC_MSG_ERROR([Invalid argument ($enableval) to --enable-altivec]) ;;
esac
fi],
[ if test $MD_CPU = powerpc; then _TRY_ADD_ALTIVEC fi])
AC_MSG_CHECKING([for machine dependent speedups])
AC_MSG_RESULT($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_powerpc, test "$MD_CPU" = "powerpc")
AM_CONDITIONAL(MD_CPU_armv5, test "$MD_CPU" = "armv5")
AM_CONDITIONAL(MD_CPU_armv7_a, test "$MD_CPU" = "armv7_a")
AM_CONDITIONAL(MD_CPU_generic, test "$MD_CPU" = "generic")
])
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