libtorch-runtime/cmake-local/gflags.cmake

set(GFLAGS_ROOT_DIR ${LIB_BASE_DIR}/gflags-src)
set(GFLAGS_BUILD_DIR ${LIB_BASE_DIR}/gflags-build)
if(NOT EXISTS ${GLOG_BUILD_DIR})
    execute_process(
            COMMAND mkdir ${GLOG_BUILD_DIR} && cmake -S ${GLOG_ROOT_DIR} -B ${GLOG_BUILD_DIR}
            WORKING_DIRECTORY ${LIB_BASE_DIR})
    execute_process(
            COMMAND cmake --build . -j4
            WORKING_DIRECTORY ${GLOG_BUILD_DIR})
endif()

set(GFLAGS_ROOT_DIR ${LIB_BASE_DIR}/gflags-build)
find_package(gflags REQUIRED CONFIG HINTS ${GFLAGS_ROOT_DIR})
set(GFLAGS_INCLUDE_DIR ${LIB_BASE_DIR}/gflags-build/include)

list(APPEND third_party_libraries gflags)
message(STATUS gflags_FOUND)