set(WINDOWS_FLAGS "") if(MSVC) set(WINDOWS_FLAGS "-DCMAKE_GENERATOR_PLATFORM=x64") endif() ExternalProject_Add( Tweeny GIT_REPOSITORY ${TWEENY_URL} GIT_TAG ${TWEENY_TAG} BUILD_IN_SOURCE 1 SOURCE_DIR ${DEPS_BUILD_DIR}/tweeny CONFIGURE_COMMAND ${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=${DEPS_INSTALL_DIR} -DTWEENY_BUILD_EXAMPLES=OFF -DTWEENY_BUILD_DOCUMENTATION=OFF ${DEPS_BUILD_DIR}/tweeny ${WINDOWS_FLAGS}) list(APPEND THIRD_PARTY_DEPS Tweeny)