Lemma/CMake/SuperBuild.cmake

include(ExternalProject)

if (Eigen3_FOUND)
    message( STATUS "Eigen was found ${eigen_DIR}" )
else()
    message( STATUS "Eigen WAS NOT FOUND ${eigen_DIR}" )
        ExternalProject_Add(EIGEN
	    GIT_REPOSITORY "https://github.com/eigenteam/eigen-git-mirror.git"
	    UPDATE_COMMAND "" 
	    GIT_TAG "3.3.3" #"default"
   	    PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/eigen
   	    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
		#CONFIGURE_COMMAND ""
		#BUILD_COMMAND     ""
		#INSTALL_COMMAND     ""
    )

    #message("Source dir of myExtProj = ${SOURCE_DIR}")   
    #ExternalProject_Get_property(EIGEN SOURCE_DIR)
    #message("Source dir of myExtProj = ${SOURCE_DIR}")   
 
    # Are these necessary?
    #include_directories ("${CMAKE_INSTALL_PREFIX}/include/eigen3/")
    #set (Eigen3_DIR  "${CMAKE_INSTALL_PREFIX}/include/eigen3" CACHE  PATH "" FORCE )
    
    #find_package (Eigen3 3.3 NO_MODULE REQUIRED)
    #if (eigen3_FOUND)
    #    message( STATUS "Eigen was found!!!!!!!!!!!!!! ${eigen_DIR}" )
    #endif()
endif()

if (yaml-cpp_FOUND)
    message( STATUS "YAML-CPP was found ${yaml-cpp_FOUND}" )
    #message( STATUS "YAML-CPP PATH ${yaml-cpp_PATH}" )
    #message( STATUS "YAML-CPP DIR ${yaml-cpp_DIR}" )
    #message( STATUS "YAML-CPP INCLUDE DIR ${yaml-cpp_INCLUDE_DIR}" )
    #message( STATUS "YAML-CPP LIBRARIES ${YAML_CPP_LIBRARIES}" )
    #message( STATUS "YAML-CPP LIBRARY ${yaml-cpp_LIBRARY}" )
else()
    message( STATUS "YAML-CPP WAS NOT FOUND, BUILDING" )
    message( STATUS "CMAKE BUILD TYPE ${CMAKE_BUILD_TYPE}" )
	ExternalProject_Add(YAML_CPP
		GIT_REPOSITORY  "https://github.com/jbeder/yaml-cpp.git"
		GIT_TAG   "yaml-cpp-0.6.1" # "master" 
		UPDATE_COMMAND ""
		PATCH_COMMAND ""
    	PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/yaml-cpp
    	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX} 
                   -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBS}
                   -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} 
    	           -DYAML_CPP_BUILD_TESTS=OFF
                   -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} 
		#INSTALL_COMMAND ""
	)	

    # is this necessary?
	#include_directories ("${CMAKE_INSTALL_PREFIX}/include/yaml-cpp")
endif()

if (LEMMA_ENABLE_TESTING)
    if (CXXTEST_FOUND)
        message( STATUS "CxxTest was found" )
    else()
	    message( STATUS "CxxTest WAS NOT FOUND")
        ## CxxTest has no installation per se, it uses python  
	    ExternalProject_Add(CxxTest
		    GIT_REPOSITORY "https://github.com/CxxTest/cxxtest.git"
		    GIT_TAG "master"
		    UPDATE_COMMAND ""
		    PATCH_COMMAND ""
    	    PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/CxxTest
    	    #CMAKE_ARGS -DCXXTEST_INCLUDE_DIR="${CMAKE_CURRENT_BINARY_DIR}/external/CxxTest/src/CxxTest/" 
            #           -DCXXTEST_PYTHON_TESTGEN_EXECUTABLE "${CMAKE_CURRENT_BINARY_DIR}/external/CxxTest/src/CxxTest/bin/cxxtestgen"
            #-DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX} /
            #           -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} /
            #           -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
		    CONFIGURE_COMMAND ""
		    BUILD_COMMAND     ""
		    INSTALL_COMMAND   ""
	    #set (CXXTEST_INCLUDE_DIR  "${CMAKE_CURRENT_BINARY_DIR}/external/CxxTest/src/CxxTest/" CACHE PATH) #  PATH "" FORCE )
	    #set (CXXTEST_PYTHON_TESTGEN_EXECUTABLE "${CMAKE_CURRENT_BINARY_DIR}/external/CxxTest/src/CxxTest/bin/cxxtestgen" CACHE PATH) # PATH "" FORCE )
	    )
        #enable_testing()
	    # The values "CACHE PATH "" FORCE" makes the GUI show the values of the local CxxTest, but this can cause issues 
	    # with users wanting to specify their own path. However, the SuperBuild needs this, in theory you are only here 
        # because a usable CXXTEST was not already found on the machine, so likely this is sane to do 

	    #find_package(CxxTest REQUIRED)
    endif()
endif()

# tinyxml2, this library is used for XML IO 
option( LEMMA_TINYXML_SUPPORT  "TinyXML library support for .xml files" OFF)
if ( LEMMA_TINYXML_SUPPORT )
	ExternalProject_Add(TINYXML2
		GIT_REPOSITORY "https://github.com/leethomason/tinyxml2.git"
		GIT_TAG  "master"
		UPDATE_COMMAND ""
		PATCH_COMMAND ""
    	PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/tinyxml2
    	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX} -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} /
			-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
	)
	add_compile_options(-DTINYXMLSUPPORT) 
endif()

option( LEMMA_MATIO_SUPPORT  "MATIO library support for MATLAB .mat files" OFF)
if ( LEMMA_MATIO_SUPPORT )
	add_compile_options(-DHAVE_MATIO) 
	# matio, this library is used for MATLAB file IO
	ExternalProject_ADD(MATIO
		GIT_REPOSITORY  "git://git.code.sf.net/p/matio/matio"
		GIT_TAG  "master"
		UPDATE_COMMAND ""
		PATCH_COMMAND ""
    	PREFIX ${CMAKE_CURRENT_BINARY_DIR}/external/matio
    	#CONFIGURE_COMMAND ${CMAKE_CURRENT_BINARY_DIR}/external/matio/src/MATIO/autogen.sh && configure
    	CONFIGURE_COMMAND ./autogen.sh && ./configure --prefix=${CMAKE_INSTALL_PREFIX}
		BUILD_IN_SOURCE 1 
    	BUILD_COMMAND ${MAKE}
	)
endif()

#ExternalProject_Add (Lemma_SB
#  DEPENDS ${DEPENDENCIES}
#  SOURCE_DIR ${PROJECT_SOURCE_DIR}
#  CMAKE_ARGS -DUSE_SUPERBUILD=OFF ${EXTRA_CMAKE_ARGS}
#  INSTALL_COMMAND ""
#  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/blah)


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