set(WINDOWS_FLAGS "") if(MSVC) set(WINDOWS_FLAGS "-DCMAKE_GENERATOR_PLATFORM=x64") endif() ExternalProject_Add( MatrixStructs DOWNLOAD_DIR ${DEPS_DOWNLOAD_DIR}/matrix_structs GIT_REPOSITORY ${MATRIX_STRUCTS_URL} GIT_TAG ${MATRIX_STRUCTS_TAG} BUILD_IN_SOURCE 1 SOURCE_DIR ${DEPS_BUILD_DIR}/matrix_structs CONFIGURE_COMMAND ${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=${DEPS_INSTALL_DIR} -DCMAKE_BUILD_TYPE=Release ${DEPS_BUILD_DIR}/matrix_structs ${WINDOWS_FLAGS} BUILD_COMMAND ${CMAKE_COMMAND} --build ${DEPS_BUILD_DIR}/matrix_structs --config Release) list(APPEND THIRD_PARTY_DEPS MatrixStructs)