使用DSENT建模NoC功耗与面积时make编译报错求助

我在/ext/dsent目录下使用DSENT为自研NoC建模功耗与面积，cmake执行正常，但执行make命令时出现如下错误：

Consolidate compiler generated dependencies of target dsent
[  1%] Building CXX object CMakeFiles/dsent.dir/DSENT.cc.o
c++: warning: /bin/sh:: linker input file unused because linking not done
c++: error: /bin/sh:: linker input file not found: No such file or directory
c++: warning: 1:: linker input file unused because linking not done
c++: error: 1:: linker input file not found: No such file or directory
c++: warning: python-config:: linker input file unused because linking not done
c++: error: python-config:: linker input file not found: No such file or directory
c++: warning: not: linker input file unused because linking not done
c++: error: not: linker input file not found: No such file or directory
c++: warning: found: linker input file unused because linking not done
c++: error: found: linker input file not found: No such file or directory
make[2]: *** [CMakeFiles/dsent.dir/build.make:76: CMakeFiles/dsent.dir/DSENT.cc.o] Error 1
make[2]: *** Deleting file 'CMakeFiles/dsent.dir/DSENT.cc.o'
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/dsent.dir/all] Error 2
make: *** [Makefile:91: all] Error 2

原始CMakeLists.txt内容如下：

cmake_minimum_required (VERSION 2.6)

project (DSENT)
# find out all the file that need to be compiled
file(GLOB_RECURSE SRCS  "*.h" "*.cc")

# add the library
add_library(dsent MODULE ${SRCS})

SET(PYTHON_CONFIG "python-config")

# add the binary tree to the search path for include files
include_directories("${CMAKE_SOURCE_DIR}" "`${PYTHON_CONFIG} --includes`")
EXEC_PROGRAM(${PYTHON_CONFIG} ARGS --cflags OUTPUT_VARIABLE PYTHON_CFLAGS)
EXEC_PROGRAM(${PYTHON_CONFIG} ARGS --ldflags OUTPUT_VARIABLE PYTHON_LFLAGS)

set_target_properties(dsent PROPERTIES
        PREFIX ""
        COMPILE_FLAGS "${PYTHON_CFLAGS} -std=c++11 "
        LINK_FLAGS "${PYTHON_LFLAGS}")

问题根源 #

CMakeLists.txt中include_directories行错误地用反引号`包裹${PYTHON_CONFIG} --includes，导致CMake将整个字符串视为文件路径，而非执行命令获取输出；同时老旧的EXEC_PROGRAM命令在新CMake版本中兼容性较差，进一步引发编译参数解析错误。

修复方案 #

修改CMakeLists.txt，改用execute_process命令正确获取Python相关参数，去除反引号包裹：

cmake_minimum_required (VERSION 2.6)

project (DSENT)
# 查找所有需要编译的文件
file(GLOB_RECURSE SRCS  "*.h" "*.cc")

# 添加库
add_library(dsent MODULE ${SRCS})

# 根据系统Python版本调整，比如用python3-config
SET(PYTHON_CONFIG "python-config")

# 获取Python include路径
execute_process(
    COMMAND ${PYTHON_CONFIG} --includes
    OUTPUT_VARIABLE PYTHON_INCLUDES
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
# 获取Python编译参数
execute_process(
    COMMAND ${PYTHON_CONFIG} --cflags
    OUTPUT_VARIABLE PYTHON_CFLAGS
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
# 获取Python链接参数
execute_process(
    COMMAND ${PYTHON_CONFIG} --ldflags
    OUTPUT_VARIABLE PYTHON_LFLAGS
    OUTPUT_STRIP_TRAILING_WHITESPACE
)

# 添加头文件搜索路径
include_directories("${CMAKE_SOURCE_DIR}" ${PYTHON_INCLUDES})

set_target_properties(dsent PROPERTIES
        PREFIX ""
        COMPILE_FLAGS "${PYTHON_CFLAGS} -std=c++11"
        LINK_FLAGS "${PYTHON_LFLAGS}")

后续操作 #

1. 如果系统存在多版本Python，将PYTHON_CONFIG改为对应版本的config命令（如python3-config）
2. 重新执行cmake .生成新的Makefile
3. 执行make完成编译

内容的提问来源于stack exchange，提问作者WITHER