--- src/CMakeLists.txt.orig	2014-03-15 15:11:32 UTC
+++ src/CMakeLists.txt
@@ -3,7 +3,6 @@ PROTOBUF_GENERATE_CPP(CPPS HS fileformat
 if(MSVC)
     set(CMAKE_CXX_FLAGS "/O3")
 else()
-    set(CMAKE_CXX_FLAGS "-O3")
 endif()
 
 add_library(osmpbf STATIC ${CPPS})