wrapper: add some wine environment variables

wrapper.py.in

@@ -110,9 +110,10 @@ def break_path_for_msys2(path):
 # target directory for Windows and for every single other system we're likely
 # to ever deal with...
 if is_really_windows():
-    separator = ':'
-    depsdir = ['bin']
-    searchvar = 'PATH'
+    separator = ';'
+    depsdir = ['bin', 'lib']
+    searchvar = 'WINEPATH'
+    env['WINEDEBUG'] = '-all'
 else:
     separator = ':'
     depsdir = ['lib', 'lib64']