python-matplotlib: update to 3.5.1

mingw-w64-python-matplotlib/setupext.py.patch

@@ -1,6 +1,6 @@
---- matplotlib-3.3.4/setupext.py.orig	2021-01-28 09:30:28.000000000 +0100
-+++ matplotlib-3.3.4/setupext.py	2021-02-07 12:11:03.590667300 +0100
-@@ -20,6 +20,7 @@
+--- a/setupext.py
++++ b/setupext.py
+@@ -19,6 +19,7 @@
  
  _log = logging.getLogger(__name__)
  
@@ -8,28 +8,28 @@
  
  def _get_xdg_cache_dir():
      """
-@@ -146,9 +147,9 @@
+@@ -188,9 +189,9 @@
  options = {
      'backend': config.get('rc_options', 'backend', fallback=None),
      'system_freetype': config.getboolean(
 -        'libs', 'system_freetype', fallback=sys.platform.startswith('aix')),
 +        'libs', 'system_freetype', fallback=sys.platform.startswith('aix') or MSYS),
-     'system_qhull': config.getboolean('libs', 'system_qhull',
--                                      fallback=False),
-+                                      fallback=False or MSYS),
+     'system_qhull': config.getboolean(
+-        'libs', 'system_qhull', fallback=False),
++        'libs', 'system_qhull', fallback=False or MSYS),
  }
  
  
-@@ -171,7 +172,7 @@
+@@ -213,7 +214,7 @@
      """
      Get path to pkg-config and set up the PKG_CONFIG environment variable.
      """
 -    if sys.platform == 'win32':
 +    if sys.platform == 'win32' and not MSYS:
          return None
-     pkg_config = os.environ.get('PKG_CONFIG', 'pkg-config')
+     pkg_config = os.environ.get('PKG_CONFIG') or 'pkg-config'
      if shutil.which(pkg_config) is None:
-@@ -223,7 +224,7 @@
+@@ -265,7 +266,7 @@
  
      # conda Windows header and library paths.
      # https://github.com/conda/conda/issues/2312 re: getting the env dir.