add support for ppc64 in installer

misc/setup/setup.xml.in

@@ -35,7 +35,7 @@ ifelse(HAVE_I386,yes,dnl
     </option>
 )dnl
 ifelse(HAVE_PPC,yes,dnl
-    <option install="true">
+    <option install="true" if="|(ppc,ppc64)">
      <binary libc="any" symlink="ioquake3" icon="quake3.png" name="ioquake3">ioquake3</binary>
      ioq3 ppc binaries
      <files>
@@ -43,6 +43,16 @@ ifelse(HAVE_PPC,yes,dnl
      </files>
      <help>you need the binaries to play the game</help>
     </option>
+)dnl
+ifelse(HAVE_PPC64,yes,dnl
+    <option install="true" arch="ppc64">
+     <binary libc="any" symlink="ioquake3" icon="quake3.png" name="ioquake3">ioquake3</binary>
+     ioq3 ppc64 binaries
+     <files>
+       ioquake3.ppc64.tar
+     </files>
+     <help>you need the binaries to play the game</help>
+    </option>
 )dnl
     <option install="true">
      Desktop menu entries