checkInputs used to be added to nativeBuildInputs. Now we have
nativeCheckInputs to do that instead. Doing this treewide change allows
to keep hashes identical to before the introduction of
nativeCheckInputs.
On gcc-11 build fails as:
$ nix-build -E 'with import ./. {}; py3c.override { stdenv = gcc11Stdenv; }'
gcc -fno-strict-aliasing ... -Werror -Wall
cc1plus: warning:
command-line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++
In file included from /nix/store/...-python-2.7.18/include/python2.7/Python.h:88,
from test_py3c.cpp:4:
/nix/store/...-python-2.7.18/include/python2.7/unicodeobject.h:534:24:
error: ISO C++17 does not allow 'register' storage class specifier [-Werror=register]
534 | register PyObject *obj, /* Object */
| ^~~
The fix was already present o clang toolchain. Let's extendt it to all toolchains.