--- CMakeLists.txt.orig	2012-08-11 23:22:44.000000000 +0200
+++ CMakeLists.txt	2012-08-11 23:23:49.000000000 +0200
@@ -350,6 +350,7 @@
 endif()
 
 include(cmake/OpenCVPCHSupport.cmake REQUIRED)
+SET(PCHSupport_FOUND FALSE)
 include(cmake/OpenCVModule.cmake REQUIRED)
 
 # ----------------------------------------------------------------------------