diff -Nur ioquake3-1959/code/qcommon/q_shared.h ioquake3-1959+add-HOMEPATH/code/qcommon/q_shared.h
--- ioquake3-1959/code/qcommon/q_shared.h	2011-05-04 11:01:29.011580197 +0200
+++ ioquake3-1959+add-HOMEPATH/code/qcommon/q_shared.h	2011-05-04 17:07:11.035579817 +0200
@@ -34,6 +34,9 @@
   #define GAMENAME_FOR_MASTER		"iofoo3"		// must NOT contain whitespaces
   #define HEARTBEAT_FOR_MASTER		GAMENAME_FOR_MASTER
   #define FLATLINE_FOR_MASTER		GAMENAME_FOR_MASTER "dead"
+  #define HOMEPATH_NAME_UNIX		".foo"
+  #define HOMEPATH_NAME_WIN		"FooBar"
+  #define HOMEPATH_NAME_MACOSX		"FooBar"
 #else
   #define PRODUCT_NAME			"ioq3"
   #define BASEGAME			"baseq3"
@@ -42,6 +45,9 @@
   #define GAMENAME_FOR_MASTER		"Quake3Arena"
   #define HEARTBEAT_FOR_MASTER		"QuakeArena-1"
   #define FLATLINE_FOR_MASTER		HEARTBEAT_FOR_MASTER
+  #define HOMEPATH_NAME_UNIX		".q3a"
+  #define HOMEPATH_NAME_WIN		"Quake3"
+  #define HOMEPATH_NAME_MACOSX		"Quake3"
 #endif
 
 #define BASETA				"missionpack"
diff -Nur ioquake3-1959/code/sys/sys_unix.c ioquake3-1959+add-HOMEPATH/code/sys/sys_unix.c
--- ioquake3-1959/code/sys/sys_unix.c	2011-05-04 11:01:37.631580249 +0200
+++ ioquake3-1959+add-HOMEPATH/code/sys/sys_unix.c	2011-05-04 17:07:55.115580924 +0200
@@ -63,12 +63,12 @@
 			if(com_homepath->string[0])
 				Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 			else
-				Q_strcat(homePath, sizeof(homePath), "Quake3");
+				Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME_MACOSX);
 #else
 			if(com_homepath->string[0])
 				Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 			else
-				Q_strcat(homePath, sizeof(homePath), ".q3a");
+				Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME_UNIX);
 #endif
 		}
 	}
diff -Nur ioquake3-1959/code/sys/sys_win32.c ioquake3-1959+add-HOMEPATH/code/sys/sys_win32.c
--- ioquake3-1959/code/sys/sys_win32.c	2011-05-04 11:01:37.627829874 +0200
+++ ioquake3-1959+add-HOMEPATH/code/sys/sys_win32.c	2011-05-04 17:08:12.299830190 +0200
@@ -94,7 +94,7 @@
 		if(com_homepath->string[0])
 			Q_strcat(homePath, sizeof(homePath), com_homepath->string);
 		else
-			Q_strcat(homePath, sizeof(homePath), "Quake3");
+			Q_strcat(homePath, sizeof(homePath), HOMEPATH_NAME_WIN);
 
 		FreeLibrary(shfolder);
 	}