Mac installer: under OS 10.4, create boinc_master and boinc_project at IDs starting at 25 instead of 501

svn path=/trunk/boinc/; revision=25106

checkin_notes

@@ -739,3 +739,13 @@ David  19 Jan 2012
     version.h
     ssim/
         ssim.php
+
+Charlie 19 Jan 2012
+    - Mac installer: If installing under OS 10.4, create users and groups 
+        boinc_master and boinc_project at first available UserIDs and 
+        GroupIDs starting at 25 instead of 501 to prevent problems with 
+        Accounts pane of System Preferences.
+
+    clientgui/
+        mac/
+            SetupSecurity.cpp

clientgui/mac/SetupSecurity.cpp

@@ -721,6 +721,15 @@ static OSStatus CreateUserAndGroup(char * user_name, char * group_name) {
     char            buf1[80];
     char            buf2[80];
     char            buf3[80];
+    SInt32          response;
+   
+    err = Gestalt(gestaltSystemVersion, &response);
+    if (err) return err;
+    
+    // OS 10.4 has problems with Accounts pane if we create uid or gid > 501
+    if (response < 0x1050) {
+        start_id = 25;
+    }
     
     pw = getpwnam(user_name);
     if (pw) {