--- configure.old       2007-06-22 00:28:13.000000000 +1000
+++ configure   2007-06-22 00:29:50.000000000 +1000
@@ -1791,36 +1791,36 @@
     }
     case $tune in
         601|ppc601|PowerPC601)
-            ARCHFLAGS="-mcpu=601"
+            ARCHFLAGS="-march=601"
             warn_altivec enabled PPC601
         ;;
         603*|ppc603*|PowerPC603*)
-            ARCHFLAGS="-mcpu=603"
+            ARCHFLAGS="-march=603"
             warn_altivec enabled PPC603
         ;;
         604*|ppc604*|PowerPC604*)
-            ARCHFLAGS="-mcpu=604"
+            ARCHFLAGS="-march=604"
             warn_altivec enabled PPC604
         ;;
         G3|g3|75*|ppc75*|PowerPC75*)
-            ARCHFLAGS="-mcpu=750 -mtune=750 -mpowerpc-gfxopt"
+            ARCHFLAGS="-march=750 -mtune=750 -mpowerpc-gfxopt"
             warn_altivec enabled PPC75x
         ;;
         G4|g4|745*|ppc745*|PowerPC745*)
-            ARCHFLAGS="-mcpu=7450 -mtune=7450 -mpowerpc-gfxopt"
+            ARCHFLAGS="-march=7450 -mtune=7450 -mpowerpc-gfxopt"
             warn_altivec disabled PPC745x
         ;;
         74*|ppc74*|PowerPC74*)
-            ARCHFLAGS="-mcpu=7400 -mtune=7400 -mpowerpc-gfxopt"
+            ARCHFLAGS="-march=7400 -mtune=7400 -mpowerpc-gfxopt"
             warn_altivec disabled PPC74xx
         ;;
         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
-            ARCHFLAGS="-mcpu=970 -mtune=970 -mpowerpc-gfxopt -mpowerpc64"
+            ARCHFLAGS="-march=970 -mtune=970 -mpowerpc-gfxopt -mpowerpc64"
             warn_altivec disabled PPC970
             POWERPCMODE="64bits"
         ;;
         sparc64)
-            ARCHFLAGS="-mcpu=v9 -mtune=v9"
+            ARCHFLAGS="-march=v9 -mtune=v9"
         ;;
         bf*) #bf531 bf532 bf533 bf561 bf5xx all get this config
             add_cflags "-mfdpic"
@@ -1833,7 +1833,7 @@
 fi

 if enabled cpu_overide; then
-    ARCHFLAGS="-mcpu=$arch_raw $ARCHFLAGS"
+    ARCHFLAGS="-march=$arch_raw $ARCHFLAGS"
 fi

 gnu_make(){
@@ -2092,7 +2092,7 @@
 if test x"$tune" = x"generic" -a x"$arch" = x"x86_64" -a x"$cpu_overide" != x"yes"; then
    ARCHFLAGS="-march=k8"
 elif test x"$tune" = x"generic" -a x"$arch" = x"sparc64" -a x"$cpu_overide" != x"yes"; then
-   ARCHFLAGS="-mcpu=ultrasparc -mvis"
+   ARCHFLAGS="-march=ultrasparc -mvis"
 fi

 if enabled proc_error_msg; then