sustaining_gazes/lib/3rdParty/dlib/include/dlib/cmake
2016-04-28 15:40:36 -04:00

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# Don't add dlib if it's already been added to the cmake project
if (NOT TARGET dlib)
# Determine the path to dlib.
string(REGEX REPLACE "cmake$" "" dlib_path ${CMAKE_CURRENT_LIST_FILE})
if (CMAKE_COMPILER_IS_GNUCXX)
# By default, g++ won't warn or error if you forget to return a value in a
# function which requires you to do so. This option makes it give a warning
# for doing this.
add_definitions("-Wreturn-type")
endif()
# Setup some options to allow a user to enable SSE and AVX instruction use.
if (CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang"
OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU"
OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")
option(USE_SSE2_INSTRUCTIONS "Compile your program with SSE2 instructions" OFF)
option(USE_SSE4_INSTRUCTIONS "Compile your program with SSE4 instructions" OFF)
option(USE_AVX_INSTRUCTIONS "Compile your program with AVX instructions" OFF)
if(USE_AVX_INSTRUCTIONS)
add_definitions(-mavx)
elseif (USE_SSE4_INSTRUCTIONS)
add_definitions(-msse4)
elseif(USE_SSE2_INSTRUCTIONS)
add_definitions(-msse2)
endif()
elseif (MSVC OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC") # else if using Visual Studio
# Use SSE2 by default when using Visual Studio.
option(USE_SSE2_INSTRUCTIONS "Compile your program with SSE2 instructions" ON)
# Visual Studio 2005 didn't support SSE4
if (NOT MSVC80)
option(USE_SSE4_INSTRUCTIONS "Compile your program with SSE4 instructions" OFF)
endif()
# Visual Studio 2005 and 2008 didn't support AVX
if (NOT MSVC80 AND NOT MSVC90)
option(USE_AVX_INSTRUCTIONS "Compile your program with AVX instructions" OFF)
endif()
include(CheckTypeSize)
check_type_size( "void*" SIZE_OF_VOID_PTR)
if(USE_AVX_INSTRUCTIONS)
add_definitions(/arch:AVX)
elseif (USE_SSE4_INSTRUCTIONS)
# Visual studio doesn't have an /arch:SSE2 flag when building in 64 bit modes.
# So only give it when we are doing a 32 bit build.
if (SIZE_OF_VOID_PTR EQUAL 4)
add_definitions(/arch:SSE2)
endif()
add_definitions(-DDLIB_HAVE_SSE2)
add_definitions(-DDLIB_HAVE_SSE3)
add_definitions(-DDLIB_HAVE_SSE41)
elseif(USE_SSE2_INSTRUCTIONS)
# Visual studio doesn't have an /arch:SSE2 flag when building in 64 bit modes.
# So only give it when we are doing a 32 bit build.
if (SIZE_OF_VOID_PTR EQUAL 4)
add_definitions(/arch:SSE2)
endif()
add_definitions(-DDLIB_HAVE_SSE2)
endif()
endif()
# Add folder containing dlib to the include search path.
INCLUDE_DIRECTORIES(${dlib_path}/..)
# This is really optional, but nice. It will make sure the build mode
# created by cmake is always release by default.
include(${dlib_path}/release_build_by_default)
add_subdirectory(${dlib_path} dlib_build)
endif()