--- msgpack-1.0.0/CMakeLists.txt
+++ msgpack-1.0.0/CMakeLists.txt
@@ -213,10 +213,6 @@
     ADD_SUBDIRECTORY (test)
 ENDIF ()
 
-IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    SET_PROPERTY (TARGET msgpack APPEND_STRING PROPERTY COMPILE_FLAGS "-Wall -g -O3 -DPIC")
-    SET_PROPERTY (TARGET msgpack-static APPEND_STRING PROPERTY COMPILE_FLAGS "-Wall -g -O3" )
-ENDIF ()
 IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
     IF (CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
         STRING(REGEX REPLACE "/W[0-4]" "/W3" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
--- msgpack-1.0.0/test/CMakeLists.txt
+++ msgpack-1.0.0/test/CMakeLists.txt
@@ -52,9 +52,6 @@
         ${CMAKE_THREAD_LIBS_INIT}
     )
     ADD_TEST (${source_file_we} ${source_file_we})
-    IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-        SET_PROPERTY (TARGET ${source_file_we} APPEND_STRING PROPERTY COMPILE_FLAGS "-Wall -g -O3")
-    ENDIF ()
     IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
         IF (CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
             STRING(REGEX REPLACE "/W[0-4]" "/W3" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")