Don't use use ninja (yet?) for the install step
Signed-off-by: Pierre-Yves <firstname.lastname@example.org>
Newest patch version compiles, installs and works as expected with both
wine64 ninewinecfg and wine ninewinecfg
on my AMD HD 7970 GHz Ed. card (GCN 1.0).
I have no clue which games to test this with, so that part is still up in the air.