Ok, when I use g++, gcc and build my application I link the protbuf library
using this cmake function.
find_package(Protobuf REQUIRED)
function(missionGenerateProtobuf PROTOBUF_TARGET_NAME MSG_FILES)
PROTOBUF_GENERATE_CPP(ProtoSources ProtoHeaders ${MSG_FILES})
add_library(${PROTOBUF_TARGET_NAME} STATIC ${ProtoSources}
${ProtoHeaders})
target_link_libraries(${PROTOBUF_TARGET_NAME} ${PROTOBUF_LIBRARY})
endfunction(missionGenerateProtobuf PROTOBUF_TARGET_NAME MSG_FILES)
I do not get this fatal error: google/protobuf/port_def.inc: No such file
or directory #include <google/protobuf/port_def.inc> during cross
compiling an application message.
However the application I am building is ultimately going to be run on an
arm SBC. I use a cmake toolchain file, and try to compile in a different
build directory, and then I get the error.
How do I set up protobuf in cmake for cross compiling? I have not been able
to find anything on the internet, and I know it has to be possible. Do I
need to cross-compile the protoc compiler first, and then use that
cross-compile the application?
Thank you for your help.
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