cmake – PROTOBUF_GENERATE_CPP不生成src和头文件

我的cmake配置没有生成任何protobuf src和头文件.
我已经检查过是否可以找到原型文件.

Cmakelists.txt

cmake_minimum_required(VERSION 3.0.2)
..
include(FindProtobuf REQUIRED)
file(GLOB PROTO_DEF "${CMAKE_CURRENT_SOURCE_DIR}/protobuf/*/*.proto")

foreach(file ${PROTO_DEF})    
    if(EXISTS ${file})
        MESSAGE("YES")
    else()
        MESSAGE("NO")
    endif()
endforeach()
SET(PROTOBUF_GENERATE_CPP_APPEND_PATH PROTOBUF)
SET(PROTOBUF_PROTOC_EXECUTABLE protoc.exe)

..
PROTOBUF_GENERATE_CPP(PROTO_SRC PROTO_INCL ${PROTO_DEF})
..
add_library(${PROJECT_NAME} STATIC ${INCLUDES} ${INTERNAL_INCLUDES} ${SRC} ${PROTO_SRC} ${PROTO_INCL})
target_link_libraries(${PROJECT_NAME} ${PROTOBUF_LIBRARIES})

我已经检查了FindProtobuf.cmake和中途：

foreach(FIL ${ARGN})
    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
    get_filename_component(FIL_WE ${FIL} NAME_WE)

    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")

    MESSAGE(1 ${CMAKE_CURRENT_BINARY_DIR})
    MESSAGE(2 ${_protobuf_include_path})
    MESSAGE(3 ${ABS_FIL})
    MESSAGE(4 ${PROTOBUF_PROTOC_EXECUTABLE})

    add_custom_command(
      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
             "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
      COMMAND  ${PROTOBUF_PROTOC_EXECUTABLE}
      ARGS --cpp_out  ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL}
      DEPENDS ${ABS_FIL}
      COMMENT "Running C++ protocol buffer compiler on ${FIL}"
      VERBATIM )

  endforeach()

您可以看到我添加了4条消息命令,脚本到达此点并且变量显示良好的值.
proto文件确实对库有依赖性,因此命令应该执行！

关于这个问题的任何想法？

更新

用add替换add_custom_command

EXEC_PROGRAM(${PROTOBUF_PROTOC_EXECUTABLE} ARGS --cpp_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL}

确实生成源文件和头文件,我必须手动激活custom_commmands吗？

关心奥克

在编译期间会触发add_custom_command(对于我的项目).
添加

SET_SOURCE_FILES_PROPERTIES(${PROTO_SRC} ${PROTO_INCL} PROPERTIES GENERATED TRUE)

提供将生成文件的cmake信息.