precompiled compilation failed due to spec.hpp

[zhuzhzh]

Here is my step.

% git clone https://github.com/ToruNiina/toml11
% cd toml11
% git submodule update --init --recursive
% mkdir build && cd build
% cmake -DCMAKE_INSTALL_PREFIX=/home/public/toml11-v4.0.0 -DTOML11_PRECOMPILE=ON  -DCMAKE_CXX_STANDARD=17 ../
-- The CXX compiler identification is GNU 11.2.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /opt/rh/devtoolset-11/root/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (2.0s)
-- Generating done (0.0s)
-- Build files have been written to: /home/harriszh/install/toml11/build
% make
[  5%] Building CXX object src/CMakeFiles/toml11.dir/color.cpp.o
[ 11%] Building CXX object src/CMakeFiles/toml11.dir/context.cpp.o
In file included from /usr/include/sys/types.h:222,
                 from /usr/include/stdlib.h:314,
                 from /opt/rh/devtoolset-11/root/usr/include/c++/11/cstdlib:75,
                 from /opt/rh/devtoolset-11/root/usr/include/c++/11/bits/stl_algo.h:59,
                 from /opt/rh/devtoolset-11/root/usr/include/c++/11/algorithm:62,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../fwd/../fwd/../compat.hpp:6,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../fwd/../fwd/../result.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../fwd/../fwd/location_fwd.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../fwd/../location.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../fwd/region_fwd.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/../region.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../fwd/source_location_fwd.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/../source_location.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/fwd/error_info_fwd.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/error_info.hpp:4,
                 from /home/harriszh/install/toml11/include/toml11/context.hpp:4,
                 from /home/harriszh/install/toml11/src/context.cpp:1:
/home/harriszh/install/toml11/include/toml11/spec.hpp: In constructor ‘constexpr toml::semantic_version::semantic_version(uint32_t, uint32_t, uint32_t)’:
/home/harriszh/install/toml11/include/toml11/spec.hpp:15:11: error: class ‘toml::semantic_version’ does not have any field named ‘gnu_dev_major’
   15 |         : major(mjr), minor(mnr), patch(p)
      |           ^~~~~
/home/harriszh/install/toml11/include/toml11/spec.hpp:15:23: error: class ‘toml::semantic_version’ does not have any field named ‘gnu_dev_minor’
   15 |         : major(mjr), minor(mnr), patch(p)
      |                       ^~~~~
In file included from /home/harriszh/install/toml11/include/toml11/context.hpp:5,
                 from /home/harriszh/install/toml11/src/context.cpp:1:
/home/harriszh/install/toml11/include/toml11/spec.hpp:16:6: error: member ‘toml::semantic_version::major’ must be initialized by mem-initializer in ‘constexpr’ constructor
   16 |     {}
      |      ^
/home/harriszh/install/toml11/include/toml11/spec.hpp:18:19: note: declared here
   18 |     std::uint32_t major;
      |                   ^~~~~
/home/harriszh/install/toml11/include/toml11/spec.hpp:16:6: error: member ‘toml::semantic_version::minor’ must be initialized by mem-initializer in ‘constexpr’ constructor
   16 |     {}
      |      ^
/home/harriszh/install/toml11/include/toml11/spec.hpp:19:19: note: declared here
   19 |     std::uint32_t minor;
      |                   ^~~~~
make[2]: *** [src/CMakeFiles/toml11.dir/build.make:90: src/CMakeFiles/toml11.dir/context.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:854: src/CMakeFiles/toml11.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

I searched 'gnu_dev_major' in the whole directory, but didn't find anything.

My vim install LSP tool (clang), which shows the same error messages as above.

[ToruNiina]

Thank you for trying it and reporting the error!

I reproduced the error by adding #include <sys/sysmacros.h> that defines #define major(dev) gnu_dev_major (dev) that takes over the major(mjr).
To avoid unintended macro expansion, I changed major(mjr) to major{mjr}. It now compiles with <sys/sysmacros.h>. I think the problem is resolved.

[zhuzhzh]

@ToruNiina Thanks. After changing to major{mjr}, minor{mnr}, patch{p}, the compilation passes.