Backport fix for Matplotlib 3.7

6b4572ba1a8a877f28e25dfe9559c14b7a565958.patch

@@ -0,0 +1,36 @@
+From 6b4572ba1a8a877f28e25dfe9559c14b7a565958 Mon Sep 17 00:00:00 2001
+From: Greg Lucas <greg.m.lucas@gmail.com>
+Date: Thu, 26 Jan 2023 08:51:54 -0700
+Subject: [PATCH] TST/FIX: Test for instance rather than string in class
+ representation
+
+Matplotlib has merged SubplotBase into AxesBase now, which makes the
+class string representation here GeoAxes now, even though we are
+still an _instance_ of GeoAxesSubplot
+---
+ lib/cartopy/tests/mpl/test_axes.py | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/lib/cartopy/tests/mpl/test_axes.py b/lib/cartopy/tests/mpl/test_axes.py
+index eaf5904b0..d4e37a113 100644
+--- a/lib/cartopy/tests/mpl/test_axes.py
++++ b/lib/cartopy/tests/mpl/test_axes.py
+@@ -13,7 +13,8 @@
+ 
+ import cartopy.crs as ccrs
+ import cartopy.feature as cfeature
+-from cartopy.mpl.geoaxes import InterProjectionTransform, GeoAxes
++from cartopy.mpl.geoaxes import (
++    InterProjectionTransform, GeoAxes, GeoAxesSubplot)
+ 
+ 
+ class TestNoSpherical:
+@@ -119,7 +120,7 @@ def test_single_geometry(self):
+ 
+ def test_geoaxes_subplot():
+     ax = plt.subplot(1, 1, 1, projection=ccrs.PlateCarree())
+-    assert str(ax.__class__) == "<class 'cartopy.mpl.geoaxes.GeoAxesSubplot'>"
++    assert isinstance(ax, GeoAxesSubplot)
+ 
+ 
+ @pytest.mark.mpl_image_compare(filename='geoaxes_subslice.png')

python-cartopy.spec

@@ -22,6 +22,8 @@ Patch0002:      0002-Use-pkg-config-to-find-GEOS-instead-of-geos-config.patch
 Patch0003:      0003-Remove-extraneous-insertion-of-default-compiler-path.patch
 # We don't need to worry about the bugs with setuptools-scm < 7.
 Patch0004:      0004-Allow-older-setuptools-scm.patch
+# Fix build with Matplotlib 3.7
+Patch0005:      https://github.com/SciTools/cartopy/commit/6b4572ba1a8a877f28e25dfe9559c14b7a565958.patch
 
 BuildRequires:  gcc-c++
 BuildRequires:  geos-devel >= 3.7.2