diff -ru openmw-0.18.0.orig/CMakeLists.txt openmw-0.18.0/CMakeLists.txt
--- openmw-0.18.0.orig/CMakeLists.txt	2012-09-26 09:54:15.000000000 +0200
+++ openmw-0.18.0/CMakeLists.txt	2012-10-06 21:55:44.105401145 +0200
@@ -304,20 +304,6 @@
         "${OpenMW_BINARY_DIR}/openmw.desktop")
 endif()
 
-# Compiler settings
-if (CMAKE_COMPILER_IS_GNUCC)
-    add_definitions (-Wall -Wextra -Wno-unused-parameter -Wno-reorder)
-
-    # Silence warnings in OGRE headers. Remove once OGRE got fixed!
-    add_definitions (-Wno-ignored-qualifiers)
-
-    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
-                OUTPUT_VARIABLE GCC_VERSION)
-    if ("${GCC_VERSION}" VERSION_GREATER 4.6 OR "${GCC_VERSION}" VERSION_EQUAL 4.6)
-        add_definitions (-Wno-unused-but-set-parameter)
-    endif("${GCC_VERSION}" VERSION_GREATER 4.6 OR "${GCC_VERSION}" VERSION_EQUAL 4.6)
-endif (CMAKE_COMPILER_IS_GNUCC)
-
 if(DPKG_PROGRAM)
     SET(CMAKE_INSTALL_PREFIX "/usr")