Building against Python development build: Missing pyconfig.h

[Barry]

> On 1 Aug 2021, at 15:25, Florian Bruhin <me at the-compiler.org> wrote:
> 
> Hi,
> 
> I've tried building CPython 3.10 from git, and then building the latest
> PyQt5 snapshot against it.

Did you make install python? I wondering if that is required to have pyconfig.h installed into the include folder.

Barry

> 
> That is:
> 
>    PyQt-builder 1.11.0.dev2107161131
>    PyQt5-sip 12.9.0
>    sip 6.2.0.dev2107131757
>    PyQt5 5.15.5.dev2107091435
> 
> When I do so, I get:
> 
>    gcc [...] -DQT_PLUGIN -I. -I. -I.. -I[...]/cpython/Include -I[...]/qtbase/mkspecs/linux-g++ -o sipQtcmodule.o sipQtcmodule.c
>    In file included from ../sip.h:24,
>                     from sipQtcmodule.c:7:
>    /home/florian/tmp/cpython/Include/Python.h:8:10: fatal error: pyconfig.h: No such file or directory
>        8 | #include "pyconfig.h"
>          |          ^~~~~~~~~~~~
>    compilation terminated.
> 
> This seems to fail because the pyconfig.h in a Python built from sources
> is actually in the cpython directory (i.e. the repository root, where
> the 'python' executable is too) and not the Include directory.
> 
> After a "ln -s ../pyconfig.h" in the cpython/Include directory, the
> build succeeded.
> 
> Florian
> 
> -- 
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