MySql的CMake選項支援gcov和gprof

未來的MySql 5.6.6 中，CMake選項中添加了gprof效能測試支援，見：

http://dev.mysql.com/doc/refman/5.6/en/source-configuration-options.html

ENABLE_GPROF     Enable gprof (optimized Linux builds only)     OFF     5.6.6     

程式碼程式庫中的CMakeLists.txt 摘錄如下：

OPTION(ENABLE_GCOV "Enable gcov (debug, Linux builds only)" OFF)IF (ENABLE_GCOV AND NOT WIN32 AND NOT APPLE)  SET(CMAKE_CXX_FLAGS_DEBUG    "${CMAKE_CXX_FLAGS_DEBUG} -fprofile-arcs -ftest-coverage")  SET(CMAKE_C_FLAGS_DEBUG    "${CMAKE_C_FLAGS_DEBUG} -fprofile-arcs -ftest-coverage")  SET(CMAKE_EXE_LINKER_FLAGS_DEBUG    "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fprofile-arcs -ftest-coverage -lgcov")ENDIF()OPTION(ENABLE_GPROF "Enable gprof (optimized, Linux builds only)" OFF)IF (ENABLE_GPROF AND NOT WIN32 AND NOT APPLE)  SET(CMAKE_C_FLAGS_RELWITHDEBINFO    "${CMAKE_C_FLAGS_RELWITHDEBINFO} -pg")  SET(CMAKE_CXX_FLAGS_RELWITHDEBINFO    "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -pg")  SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO    "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} -pg")ENDIF()