message: Fix hardcode xcode path
  User may not install xcoder into default directory
  especially if there are two different versions of xcoder installed.
diff: @@ -12,11 +12,12 @@ endif()
  set(__veclib_include_suffix "Frameworks/vecLib.framework/Versions/Current/Headers")
  +exec_program(xcode-select ARGS -print-path OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR)
  find_path(vecLib_INCLUDE_DIR vecLib.h
  DOC "vecLib include directory"
  PATHS /System/Library/Frameworks/Accelerate.framework/Versions/Current/${__veclib_include_suffix}
  /System/Library/${__veclib_include_suffix}
  - /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Headers/
  + ${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Headers/
  NO_DEFAULT_PATH)
  include(FindPackageHandleStandardArgs)
  