message: fix prometheus.cmake for install lib
diff: @@ -32,13 +32,18 @@ ExternalProject_Add(
  CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
  -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
  -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
  + -DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG}
  + -DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE}
  + -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
  + -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}
  + -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}
  + -DCMAKE_INSTALL_PREFIX:PATH=${PROMETHEUS_INSTALL_DIR}
  + -DCMAKE_INSTALL_LIBDIR=${PROMETHEUS_INSTALL_DIR}/lib
  + -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
  -DBUILD_SHARED_LIBS=OFF
  -DENABLE_PUSH=OFF
  -DENABLE_COMPRESSION=OFF
  -DENABLE_TESTING=OFF
  - -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
  - -DCMAKE_INSTALL_PREFIX:PATH=${PROMETHEUS_INSTALL_DIR}
  - -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
  BUILD_BYPRODUCTS ${PROMETHEUS_LIBRARIES}
  )
  