appveyor fix 11: debug pkgconf
appveyor fix 11: debug pkgconf

shlomif/black-hole-solitaire,shlomif/black-hole-solitaire,shlomif/black-hole-solitaire,shlomif/black-hole-solitaire,shlomif/black-hole-solitaire,shlomif/black-hole-solitaire