if (NOT TARGET gtest) set(gtest_force_shared_crt ON CACHE BOOL "" FORCE) option(INSTALL_GTEST "" OFF) option(INSTALL_GMOCK "" OFF) add_subdirectory(src EXCLUDE_FROM_ALL) else() message(STATUS "gtest is already a target. Skipping adding it twice") endif() add_library(gtest::gtest ALIAS gtest) add_library(gtest::gmock ALIAS gmock)