Re: Problem building mm-common on MSYS2

[Kjell Ahlstedt <kjellahlstedt gmail com>]

On 2021-04-14 08:11, Oliver Niebuhr wrote:
> /util/meson_aux/extra-install-cmd.py 
> C:/Dev/Sources/GTK4/mmcommon/x64/debug/share/aclocal'
> --- stdout ---
>
> --- stderr ---
> Traceback (most recent call last):
>
>   File "C:/Dev/MMCommonSrc/util/meson_aux/extra-install-cmd.py", line 
> 17, in <module>
>
>     result = subprocess.run(['aclocal', '--print-ac-dir'],
>
>
> FileNotFoundError: [WinError 2] The system cannot find the file specified
The installation of mm-common fails on line 17 of extra-install-cmd.py. 
I don't understand what the error message refers to ("the file 
specified"). extra-install-cmd.py is a very simple Python script that 
just prints a warning, if appropriate. The failing Python command is

  result = subprocess.run(['aclocal', '--print-ac-dir'],
                          stdout=subprocess.PIPE, 
stderr=subprocess.DEVNULL,
                          universal_newlines=True)

It would be fine if you could make some tests on your system. Run 
extra-install-cmd.py directly from the command line. It requires an 
argument, but the argument can be anything. It's just part of the 
warning that the script is supposed to print.

You will probably get the same FileNotFoundError again. Then try 
changing the script. Change the subprocess.run() command to

  result = subprocess.run(['aclocal', '--print-ac-dir'],
                          capture_output=True,
                          universal_newlines=True)

That would be an acceptable change that I can make in mm-common. I just 
don't understand why it would be necessary.

If capture_output=True also fails, you can try

  result = subprocess.run(['aclocal', '--print-ac-dir'],
                          universal_newlines=True)

just to see what happens.