cmake出错Target "iot_hal" of type OBJECT_LIBRARY may not be linked into another target

[yanggeorge]

cmake config 出错。

错误出在wrappers下的CMakeFiles.txt中

FILE (GLOB wrappers_SRCS

)

ADD_LIBRARY (iot_hal OBJECT    # <--- 这里有错误
    ${wrappers_SRCS}
    ${EXTRA_C_SOURCES}
)

问题：

➜  build git:(v3.0.1) ✗ cmake ../
-- The C compiler identification is GNU 7.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
---------------------------------------------------------------------
Project Name              : iotkit-embedded-V3.0.1
Source Dir                : /home/ym/work/iotkit-embedded
Binary Dir                : /home/ym/work/iotkit-embedded/build
System Processor          : x86_64
System Platform           : Linux-5.0.0-23-generic
C Compiler                : /usr/bin/cc
Executable Dir            : /home/ym/work/iotkit-embedded/build/bin
Library Dir               : /home/ym/work/iotkit-embedded/build/lib
SDK Version               : V3.0.1

Building on LINUX ...
---------------------------------------------------------------------
You have called ADD_LIBRARY for library iot_hal without any source files. This typically indicates a problem with your CMakeLists.txt file
CMake Error at CMakeLists.txt:83 (TARGET_LINK_LIBRARIES):
  Target "iot_hal" of type OBJECT_LIBRARY may not be linked into another
  target.  One may link only to STATIC or SHARED libraries, or to executables
  with the ENABLE_EXPORTS property set.

重现步骤：

git clone https://github.com/aliyun/iotkit-embedded.git
cd iotkit-embedded
make config
make cmake 
mkdir build
cd build
cmake ../