fatal error: 'boost/predef/other/endian.h' file not found with MSGPACK_USE_BOOST OFF

[leocencetti]

Similar to #1005, there seems to be a dependency on boost/predef/other/endian.h when building with MSGPACK_USE_BOOST=OFF.

I have reproduced this issue on both Linux and Windows.

Minimal reproducible example: https://github.com/leocencetti/msgpack-c-issue-1025-example

(base)leonardo@T14-LC:~/Software/comm-protocol$ cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DMSGPACK_USE_BOOST=OFF
-- The C compiler identification is GNU 11.2.0
-- The CXX compiler identification is Clang 14.0.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Doxygen: /usr/bin/doxygen (found version "1.9.1") found components: doxygen missing components: dot
-- Found Python: /usr/bin/python3.10 (found version "3.10.4") found components: Interpreter 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/leonardo/Software/comm-protocol/build

(base) leonardo@T14-LC:~/Software/comm-protocol$ cmake --build build
[1/15] Building CXX object comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o
FAILED: comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/comm_protocol -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -O3 -DNDEBUG -MD -MT comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o -MF comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o.d -o comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolSensorDef.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolSensorDef.cpp:11:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[2/15] Building CXX object comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o
FAILED: comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/comm_protocol -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -O3 -DNDEBUG -MD -MT comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o -MF comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o.d -o comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolHandle.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolHandle.cpp:12:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolHandle.h:15:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[4/15] Building CXX object comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o
FAILED: comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest -O3 -DNDEBUG -MD -MT comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o -MF comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o.d -o comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_sensor_def.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_sensor_def.cpp:3:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[6/15] Building CXX object comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o
FAILED: comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googlemock/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googlemock -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src -O3 -DNDEBUG -MD -MT comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o -MF comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o.d -o comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_comm_protocol_handle.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_comm_protocol_handle.cpp:7:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolHandle.h:15:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[8/15] Building CXX object _deps/gtest-build/googletest/CMakeFiles/gtest.dir/src/gtest-all.cc.o
ninja: build stopped: subcommand failed.

[leocencetti]

Digging a bit into the code, it seems that the MSGPACK_NO_BOOST symbol is not defined (the various if defined(MSGPACK_NO_BOOST) evaluate to false): this leads to the inclusion of multiple boost headers.

CMakeLists.txt#L79 is hit as expected.

[leocencetti]

Looking at the verbose output of cmake --build build, it seems that all CMAKE_CXX_FLAGS are lost somewhere (or overwritten).

Adding this after CMakeLists.txt#L113 fixes the missing definition:

TARGET_COMPILE_DEFINITIONS(msgpackc-cxx INTERFACE MSGPACK_NO_BOOST) # possibly add other flags as well

[redboltz]

I checked CMakeLists.txt but I couldn't find the problem. All CMAKE_CXX_FLAGS preserved at all places.

TARGET_COMPILE_DEFINITIONS(msgpackc-cxx INTERFACE MSGPACK_NO_BOOST) # possibly add other flags as well

msgpack-c should depend on boost by default. So I think that this modification is not good.

I couldn't reproduce the error. Maybe https://stackoverflow.com/help/minimal-reproducible-example is helpful.

I'm not expert of cmake. If you would find the good solution, please send a pull request.

[leocencetti]

Hi @redboltz, thank you for your reply. It does not fail as long as you have libboost installed on your system.

I've put together a small example that successfully reproduces the issue on our systems:
https://github.com/leocencetti/msgpack-c-issue-1025-example

[leocencetti]

msgpack-c should depend on boost by default. So I think that this modification is not good

Indeed it wasn't meant as a solution, but rather as a way of showing that the MSGPACK_NO_BOOST symbol is not defined as expected.

[buip]

same for me

[redboltz]

cmake -DCMAKE_CXX_FLAGS="-DMSGPACK_NO_BOOST"

could be workaround.

Essential fix is not yet.

[redboltz]

According to the cmake document https://cmake.org/cmake/help/latest/command/add_library.html

add_library is defined as follows in up to date spec:

add_library(<name> INTERFACE [<source>...] [EXCLUDE_FROM_ALL])

I read the doucment but I didn't understand how it works.

Should the following line

TARGET_COMPILE_DEFINITIONS(msgpackc-cxx INTERFACE)

be

TARGET_COMPILE_DEFINITIONS(msgpackc-cxx MSGPACK_CXX11  MSGPACK_CXX14 MSGPACK_CXX17 ...   MSGPACK_USE_BOOST ...)

?

What does parameters followed by INTERFACE mean?
[<source>...] ?

msgpack-c cmake minimum requirement is v3.1

msgpack-c/CMakeLists.txt

Line 1 in b4d800e

CMAKE_MINIMUM_REQUIRED (VERSION 3.1 FATAL_ERROR)

v3.1add_library definition is something different
https://cmake.org/cmake/help/v3.1/command/add_library.html

add_library(<name> INTERFACE [IMPORTED [GLOBAL]])

I got confused.

[redboltz]

TARGET_COMPILE_DEFINITIONS(msgpackc-cxx MSGPACK_CXX11  MSGPACK_CXX14 MSGPACK_CXX17 ...   MSGPACK_USE_BOOST ...)

This is wrong. I wrote cmake options as arguments. In @leocencetti example, it is C++ compiler option (macro definition by -D option). I got confuse more. I couldn't find corresponding document in cmake add_library manual...

[redboltz]

Little by little, I'm understanding the essential issue.

The issue is:

How to reflect cmake sub project's compiler options to the parent cmake project.

[redboltz]

How to reflect cmake sub project's compiler options to the parent cmake project.

I studied about that. I couldn't find a good way to do that.

In order to modify msgpack-c option, you need to define configuration macro as C++ compiler options instead of cmake options.
The list of configuration macro is https://github.com/msgpack/msgpack-c/wiki/v2_0_cpp_configure
(I updated)

So in this case, removing boost dependency, is cmake -DCMAKE_CXX_FLAGS="-DMSGPACK_NO_BOOST".
(-DCMAKE_USE_BOOST=OFF is not requred. )

This is my current conclusion.

If there is a proper way to reflect cmake sub project's configured C++ compiler flags to the parent project, please let me know.

[redboltz]

I asked this question to stackoverflow and got the answer.
https://stackoverflow.com/questions/73229948/how-to-propagate-sub-projects-conditional-macro-definitions-to-parent-project/73240728#73240728
I just glanced the answer but I think that conditional reflection to the parent project can possible!
I will try applying this approach to msgpack-c this weekend :)