From d903879844bdb4a52bae4fb5758ffa352305463a Mon Sep 17 00:00:00 2001
From: snowman2 <alansnow21@gmail.com>
Date: Sun, 22 Aug 2021 19:30:14 -0500
Subject: [PATCH] BUG: Handle inheritable CRS changes in pyproj 3.2

---
 lib/cartopy/crs.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/cartopy/crs.py b/lib/cartopy/crs.py
index 40793827b..c5db4dbf3 100644
--- a/lib/cartopy/crs.py
+++ b/lib/cartopy/crs.py
@@ -25,6 +25,12 @@
 
 import cartopy.trace
 
+try:
+    # https://github.com/pyproj4/pyproj/pull/902
+    from pyproj.crs.crs import _MakerCRS
+except ImportError:
+    _MakerCRS = _CRS
+
 
 __document_these__ = ['CRS', 'Geocentric', 'Geodetic', 'Globe']
 
@@ -143,7 +149,7 @@ def to_proj4_params(self):
         return OrderedDict((k, v) for k, v in proj4_params if v is not None)
 
 
-class CRS(_CRS):
+class CRS(_MakerCRS):
     """
     Define a Coordinate Reference System using proj.
     """