diff --git a/trunk/install.cmake b/trunk/install.cmake
index b6f4f4456..dc7021434 100644
--- a/trunk/install.cmake
+++ b/trunk/install.cmake
@@ -72,7 +72,7 @@ IF(WIN32 AND NOT CYGWIN)
   ENDIF(CMAKE_CXX_COMPILER MATCHES cl)  
 ELSE(WIN32 AND NOT CYGWIN)
     IF(CMAKE_COMPILER_IS_GNUCXX)
-       SET(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g -fprofile-arcs -ftest-coverage -Wall -Wextra -Wno-unused-parameter")                       
+       SET(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g -fprofile-arcs -ftest-coverage -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers")                       
        SET(CMAKE_CXX_FLAGS_RELEASE  "${CMAKE_CXX_FLAGS_RELEASE} -O2")
        SET(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -O6")       
     ENDIF(CMAKE_COMPILER_IS_GNUCXX)