--- matplotlib-2.2.5/setupext.py.orig	2020-02-02 00:15:39.000000000 +0100
+++ matplotlib-2.2.5/setupext.py	2020-03-31 20:24:37.308082463 +0200
@@ -234,6 +234,7 @@
 
 lft = bool(os.environ.get('MPLLOCALFREETYPE', False))
 options['local_freetype'] = lft or options.get('local_freetype', False)
+options['local_qhull'] = False
 
 
 def get_win32_compiler():
@@ -1410,8 +1411,7 @@
     def check(self):
         self.__class__.found_external = True
         try:
-            return self._check_for_pkg_config(
-                'libqhull', 'libqhull/qhull_a.h', min_version='2015.2')
+            return not options.get('local_qhull', False)
         except CheckFailed as e:
             self.__class__.found_pkgconfig = False
             self.__class__.found_external = False
@@ -1419,6 +1419,7 @@
 
     def add_flags(self, ext):
         if self.found_external:
+            ext.libraries.append('qhull')
             pkg_config.setup_extension(ext, 'qhull',
                                        default_libraries=['qhull'])
         else: