--- tools/CMakeLists.txt.orig	2014-03-15 15:11:32 UTC
+++ tools/CMakeLists.txt
@@ -4,7 +4,6 @@ PROJECT(${PROJECT})
 if(MSVC)
     set(CMAKE_CXX_FLAGS "/O3")
 else()
-    set(CMAKE_CXX_FLAGS "-O3 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64")
 endif()
 
 SET(CPP_SRC osmpbf-outline.cpp)