X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=config%2Fgr_set_md_cpu.m4;h=cb5fb5aac193d4d0acb030425a3f0781ea93fae8;hb=a8e0d810000c080e2ea966bc967fd0c6d21da61d;hp=b9c570eded395c28cbe3a36638cb6088df37776d;hpb=2c8ea58e4d76f54c98d71d3fcc64bc29da490908;p=debian%2Fgnuradio

diff --git a/config/gr_set_md_cpu.m4 b/config/gr_set_md_cpu.m4
index b9c570ed..cb5fb5aa 100644
--- a/config/gr_set_md_cpu.m4
+++ b/config/gr_set_md_cpu.m4
@@ -1,5 +1,5 @@
 dnl
-dnl Copyright 2003,2008 Free Software Foundation, Inc.
+dnl Copyright 2003,2008,2009 Free Software Foundation, Inc.
 dnl 
 dnl This file is part of GNU Radio
 dnl 
@@ -19,20 +19,89 @@ 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,
-	[  --with-md-cpu=ARCH      set machine dependent speedups (auto)],
+	AC_HELP_STRING([--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])
+		[
+  dnl see if the user has specified --host or --build, via 'cross_compiling'
+  if test "$cross_compiling" != no; then
+    dnl when cross-compiling, because the user specified it either via
+    dnl --target or --build, just keep the user's specs & hope for the best.
+    cf_with_md_cpu="$host_cpu"
+  else
+    dnl when the user didn't specify --target or --build, on Darwin 10
+    dnl (OSX 10.6.0 and .1) and GNU libtoool 2.2.6, 'configure' doesn't
+    dnl figure out the CPU type correctly, so do it by hand here using
+    dnl the sizeof (void*): if 4 then use i386, and otherwise use x86_64.
+    case "$host_os" in
+     *darwin*10*)
+      AC_CHECK_SIZEOF(void*)
+      if test "$ac_cv_sizeof_voidp" = 4; then
+       cf_with_md_cpu="i386"
+      else
+       cf_with_md_cpu="x86_64"
+      fi
+      ;;
+     *)
+      cf_with_md_cpu="$host_cpu"
+      ;;
+    esac
+  fi
+  ])
   case "$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) 
@@ -40,5 +109,7 @@ AC_DEFUN([GR_SET_MD_CPU],[
   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")
 ])