Re: [Discuss-gnuradio] GNURadio CMake module/files for Google Protocol Buffers file generation?

[Marcus Müller]

Hi Andy,

without knowing for sure, I'd assume there'd be a bit of reinventing 
wheels that will be unavoidable.

However, CMake does distribute a FindProtobuf.cmake [1], which 
conveniently contains a command

protobuf_generate_cpp (<SRCS> <HDRS> [<ARGN>...])


Now, I'd say you'd just do the same as for the source files in 
lib/CMakeLists.txt, i.e. add a list variable that contains your proto 
files, like


list(APPEND gr_andys_module_proto_defs
bufdef1.proto
bufdef2.proto
)

and then

protobuf_generate_cpp(PROTO_SRCS  PROTO_HDRS ${gr_andys_module_proto_defs})

and where you define the sources of your module, have that include 
${PROTO_SRCS}.


You might run into some include path strangenesses, and I've found that 
adding ${CMAKE_BINARY_DIR}/lib (or similar) to the include_directories() 
directive might help

Cheers,
Marcus

[1] http://www.cmake.org/cmake/help/git-master/module/FindProtobuf.html

On 26.07.2015 14:57, Andy Walls wrote:
> Hi:
>
> Can anyone point me to a CMake module or files that call the Google
> Protocol Buffers compiler to generate *.pb.h and *.pb.cc before building
> object files?
>
> Something already integrated with the GNURadio build system would be
> ideal.
>
> I don't want to reinvent the wheel.  Thanks.
>
> Regards,
> Andy
>
>
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