Fix

appveyor.yml

@@ -27,8 +27,7 @@ build_script:
   - make -f %makefile_name% platform=%platform%
 
 artifacts:
-  - path: '%makefile_location%\%target_name%*.dll'
-  - path: '%makefile_location%\%target_name%*.lib'
-  - path: '%makefile_location%\%target_name%*.pdb'
+  - path: '**\%target_name%*.dll'
+  - path: '**\%target_name%*.lib'
+  - path: '**\%target_name%*.pdb'
   - path: '**\libretro.h'
-