diff -r 000000000000 -r 1918ee327afb mkspecs/features/debug_and_release.prf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mkspecs/features/debug_and_release.prf	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1 @@
+!macx-xcode:!symbian:addExclusiveBuilds(debug, Debug, release, Release)