@jancsika Thanks. Now building seems to be ok
Successful compile (177.719 sec). Resulting Setup program filename is:
C:\purr-data\packages\win32_inno\Output\Purr Data 2.5.0-20180404-rev.ff8afc1.exe
win32_inno install succeeded!
copying pd-l2ork-specific externals...
done with l2ork addons.
done.
But C:\purr-data\packages\win32_inno\Output\ is empty. I try to recompile tomorrow running MSYS2 in administrator mode because could be that Win10 doesn't like tho write files in the root directory. I'm not sure but could be. I'll check it tomorrow! Thanks for your help.