use gcc 4 on PPC Mac OS X (we already use gcc 4 on Intel), use 10.4 SDK on all tinderboxes, Mac OS X 10.4 is the new minimum system requirement for Gecko 1.9. b=385221 r=mento r=luser

build/macosx/universal/mozconfig

@@ -46,25 +46,14 @@ DARWIN_VERSION=`uname -r`
 ac_add_app_options ppc  --target=powerpc-apple-darwin$DARWIN_VERSION
 ac_add_app_options i386 --target=i386-apple-darwin$DARWIN_VERSION
 
-# ppc builds run on older systems.  The minimum SDK for x86 is 10.4u.
-ac_add_app_options ppc  --with-macos-sdk=/Developer/SDKs/MacOSX10.3.9.sdk
-ac_add_app_options i386 --with-macos-sdk=/Developer/SDKs/MacOSX10.4u.sdk
+ac_add_options --with-macos-sdk=/Developer/SDKs/MacOSX10.4u.sdk
 
 # $MOZ_BUILD_APP is only defined when sourced by configure.  That's not a
 # problem, because the variables it affects only need to be set for
 # configure.
 if test -n "$MOZ_BUILD_APP" ; then
   TARGET_CPU=$MOZ_BUILD_APP
-
-  # When compiling C++, Apple gcc 4.0 produces output that requires a minimum
-  # of 10.3.9.  Use 4.0 for the x86 build, which has a higher minimum than
-  # that.  Use 3.3 for ppc, which must run on older systems.  This will
-  # completely override the compiler selected with the gcc_select command.
-  if test "$TARGET_CPU" = "ppc" ; then
-    GCC_VERSION=3.3
-  else
-    GCC_VERSION=4.0
-  fi
+  GCC_VERSION=4.0
 
   # It's not strictly necessary to specify -arch during native builds, but it
   # makes the merged about:buildconfig easier to follow, and it reduces

configure.in

@@ -3072,7 +3072,7 @@ dnl Check for MacOS deployment target version
 dnl ========================================================
 
 MOZ_ARG_ENABLE_STRING(macos-target,
-                      [  --enable-macos-target=VER (default=10.3/ppc, 10.4/x86)
+                      [  --enable-macos-target=VER (default=10.4)
                           Set the minimum MacOS version needed at runtime],
                       [_MACOSX_DEPLOYMENT_TARGET=$enableval])
 
@@ -3085,17 +3085,7 @@ case "$target" in
         dnl No value specified on the command line or in the environment,
         dnl use the lesser of the application's minimum or the architecture's
         dnl minimum.
-        case "${target_cpu}" in
-            powerpc*)
-                dnl Architecture minimum 10.3
-                dnl export MACOSX_DEPLOYMENT_TARGET=10.3
-                export MACOSX_DEPLOYMENT_TARGET=10.2
-                ;;
-            i*86*)
-                dnl Architecture minimum 10.4
-                export MACOSX_DEPLOYMENT_TARGET=10.4
-                ;;
-        esac
+        export MACOSX_DEPLOYMENT_TARGET=10.4
     fi
     ;;
 esac