build error: call to non-‘constexpr’ function ‘long int sysconf(int)’

[agvxov]

build.log

Happens both with the 'master' and the 'dev' branch.
Please let me know what system information i should provide.

[fnc12]

what is your compiler and C++ standard?

[agvxov]

$ ls -l /usr/bin/c++
lrwxrwxrwx 1 root root 39 Oct 21 13:09 /usr/bin/c++ -> /usr/x86_64-pc-linux-gnu/gcc-bin/12/c++*
$ /usr/bin/c++ --version
c++ (Gentoo Hardened 12.2.1_p20221008 p1) 12.2.1 20221008 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Im not sure if I understand the second part of the question correctly. c++14 is being used as it is set by cmake and can be seen in the log.

[fnc12]

ok but constexpr is c++17 feature. Looks like you have issues with C++ standard

[agvxov]

Sure, but Im not personally selecting any standard. Correctly if Im wrong, but isnt it cmake's job to do so?

[fnc12]

IDK cause it depends on your build system and build chain

[agvxov]

To be clear, what Im trying to do is building your library from source as specified by the "Installation" chapter in the README.

[fnc12]

looks like it is catch2 lib's issue reproducible on some linux distros catchorg/Catch2#2178 . Check out dev branch now cause other guy made a PR for that #1088 which I've merged a minute ago

[agvxov]

Done. The issue still persists and the log is identical to that I originally posted.
I played around with the CMakeLists.txt. Forced c++20, got the same result, than after a google search realized constexpr is a c++11 feature, not a c++17 one as you previously mentioned.

However, digging into the error further I found this: catchorg/Catch2#2421
It seems that the error is rooted in glic and is independent of your software. My apologies.

Shall I close this as completed or as not planned?

[fnc12]

I mean if constexpr is C++17 feature. Yes you can close it