component/glib: Strictly enforce make's PYTHON value

component/glib/buildout.cfg

@@ -25,6 +25,8 @@ configure-options =
   --disable-fam
   --disable-xattr
   --disable-man
+make-options =
+  PYTHON=${buildout:executable}
 environment =
   PATH=${gettext:location}/bin:${patch:location}/bin:${perl:location}/bin:${xz-utils:location}/bin:%(PATH)s
   CPPFLAGS=-I${gettext:location}/include -I${zlib:location}/include