Update to 3.1.1 and FreeType 2.10.0.

0001-Force-using-system-qhull.patch

@@ -1,43 +1,37 @@
-From 46361ca058295e3f08d3c54196d990c497834306 Mon Sep 17 00:00:00 2001
+From ee5c28ea8cd17cbc04d5a9b79d5ce1326df93466 Mon Sep 17 00:00:00 2001
 From: Elliott Sales de Andrade <quantum.analyst@gmail.com>
 Date: Fri, 30 Mar 2018 03:15:51 -0400
 Subject: [PATCH] Force using system qhull.
 
 Signed-off-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>
 ---
- setupext.py | 17 ++---------------
- 1 file changed, 2 insertions(+), 15 deletions(-)
+ setupext.py | 12 +++++-------
+ 1 file changed, 5 insertions(+), 7 deletions(-)
 
 diff --git a/setupext.py b/setupext.py
-index d2ff239ad..30e0c9085 100644
+index 3e8b382cc..66a278b0c 100644
 --- a/setupext.py
 +++ b/setupext.py
-@@ -1318,23 +1318,10 @@ class Qhull(SetupPackage):
+@@ -838,14 +838,12 @@ class Png(SetupPackage):
+ class Qhull(SetupPackage):
+     name = "qhull"
  
-     def check(self):
-         self.__class__.found_external = True
--        try:
--            return self._check_for_pkg_config(
--                'libqhull', 'libqhull/qhull_a.h', min_version='2015.2')
--        except CheckFailed as e:
--            self.__class__.found_pkgconfig = False
--            self.__class__.found_external = False
--            return str(e) + ' Using local copy.'
++    def check(self):
++        self.__class__.found_external = True
 +        return ' Using system copy.'
- 
++
      def add_flags(self, ext):
--        if self.found_external:
--            pkg_config.setup_extension(ext, 'qhull',
--                                       default_libraries=['qhull'])
--        else:
--            ext.include_dirs.insert(0, 'extern')
--            ext.sources.extend(sorted(glob.glob('extern/libqhull/*.c')))
--            if sysconfig.get_config_var('LIBM') == '-lm':
--                ext.libraries.extend('m')
+-        # Qhull doesn't distribute pkg-config info, so we have no way of
+-        # knowing whether a system install is recent enough.  Thus, always use
+-        # the vendored version.
+-        ext.include_dirs.insert(0, 'extern')
+-        ext.sources.extend(sorted(glob.glob('extern/libqhull/*.c')))
+-        if sysconfig.get_config_var('LIBM') == '-lm':
+-            ext.libraries.extend('m')
 +        ext.libraries.append('qhull')
  
  
  class TTConv(SetupPackage):
 -- 
-2.14.3
+2.21.0