diff --git a/checkin_notes b/checkin_notes
index d5a37a11e6..c51238f1d2 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -933,13 +933,14 @@ Charlie 24 Jan 2006
       Change conditional compile #ifdef __ppc__ in mac_backtrace.C 
       so library links properly for Intel Macs (but backtrace is disabled).
       Fix compile error by excluding CPDNBBC client code from Mac builds.
-      Remove obsolete XCode project
+      Remove obsolete XCode project; update build script to use new project.
 
     clientgui/
         BOINCGUIApp.cpp
     lib/
         mac_backtrace.C
     mac_build/
+        BuildMacBOINC.sh
         boinc.xcodeproj/
             project.pbxproj
         boinc.pbproj/
diff --git a/mac_build/BuildMacBOINC.sh b/mac_build/BuildMacBOINC.sh
index cfd44c3514..257a71a081 100644
--- a/mac_build/BuildMacBOINC.sh
+++ b/mac_build/BuildMacBOINC.sh
@@ -29,7 +29,7 @@ echo "Development (debug) build"
 style="Development"
 else
 echo "Deployment (release) build"
-style="Deployment"
+style="ppc_Deployment"
 fi
 
 if [ "$1" = "-noclean" ] || [ "$2" = "-noclean" ]; then
@@ -60,13 +60,10 @@ echo "ERROR: System 10.3.9 SDK is missing.  For details, see build instructions
 echo "boinc/mac_build/HowToBuildBOINC_XCode.rtf or http://boinc.berkeley.edu/mac_build.html"
 exit 1
 fi
-elif [ "$major" = "7" ]; then
-echo "Building BOINC under System 10.3"
-sdkname=""
 else
-echo "ERROR: Building BOINC requires System 10.3 or later.  For details, see build instructions at "
+echo "ERROR: Building BOINC requires System 10.4 or later.  For details, see build instructions at "
 echo "boinc/mac_build/HowToBuildBOINC_XCode.rtf or http://boinc.berkeley.edu/mac_build.html"
 exit 1
 fi
 
-xcodebuild -project boinc.xcodeproj -target Build_All -buildstyle $style $doclean build NEXTROOT=$sdkname SDKROOT=$sdkname
+xcodebuild -project boinc.xcodeproj -target Build_All -configuration $style $doclean build NEXTROOT=$sdkname SDKROOT=$sdkname