diff --git a/checkin_notes b/checkin_notes
index a6741f0a27..fde891c357 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -2326,7 +2326,8 @@ David  10 Mar 2007
         sched_config.C,h
 
 Charlie 12 Mar 2007
-   - CC: On Mac OS X, sysctl with selectors CTL_HW, HW_PHYSMEM returns only a 
+    - Mac: add str_util.C,h to libboinc target of XCode project.
+    - CC: On Mac OS X, sysctl with selectors CTL_HW, HW_PHYSMEM returns only a 
         4-byte value, even if passed an 8-byte buffer, and limits the returned 
         value to 2GB when the actual RAM size is > 2GB.  So use Mac-specific
         API Gestalt(gestaltPhysicalRAMSizeInMegabytes, &mem_size) and add a 
@@ -2335,3 +2336,6 @@ Charlie 12 Mar 2007
 
     client/
         hostinfo_unix.C
+    mac_build/
+        boinc.xcodeproj/
+            project.pbxproj
diff --git a/mac_build/boinc.xcodeproj/project.pbxproj b/mac_build/boinc.xcodeproj/project.pbxproj
index 1b4bde828c..a38a353a6c 100755
--- a/mac_build/boinc.xcodeproj/project.pbxproj
+++ b/mac_build/boinc.xcodeproj/project.pbxproj
@@ -169,6 +169,7 @@
 		DD40826507D3076400163EF5 /* x_opengl.C in Sources */ = {isa = PBXBuildFile; fileRef = DD40825A07D3076400163EF5 /* x_opengl.C */; };
 		DD431F240A415EE70060585A /* SetupSecurity.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DD7748B40A356D6C0025D05E /* SetupSecurity.cpp */; };
 		DD431FAA0A41660D0060585A /* Carbon.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 20286C33FDCF999611CA2CEA /* Carbon.framework */; };
+		DD4329910BA63DEC007CDF2A /* str_util.C in Sources */ = {isa = PBXBuildFile; fileRef = DD7BF7D70B8E7A9800A009F7 /* str_util.C */; };
 		DD48091F081A66F100A174AA /* BOINCSaver.nib in Resources */ = {isa = PBXBuildFile; fileRef = DD48091E081A66F100A174AA /* BOINCSaver.nib */; };
 		DD4C56160AD389A2009E23C6 /* sg_ClientStateIndicator.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DD4C560A0AD389A2009E23C6 /* sg_ClientStateIndicator.cpp */; };
 		DD4C56180AD389A2009E23C6 /* sg_DlgMessages.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DD4C560C0AD389A2009E23C6 /* sg_DlgMessages.cpp */; };
@@ -2464,6 +2465,7 @@
 				DD407A6907D2FBC200163EF5 /* proxy_info.C in Sources */,
 				DD407A6B07D2FBC700163EF5 /* shmem.C in Sources */,
 				DD407A6D07D2FBD100163EF5 /* util.C in Sources */,
+				DD4329910BA63DEC007CDF2A /* str_util.C in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};