Fix cross-compiling our freetype (matplotlib#23852)

dopplershift · web-flow · commit 9575facf3f59 · 2022-09-10T09:27:32.000+02:00
Instead of passing BUILD_GNU_TYPE as the host, it should be
HOST_GNU_TYPE. This fixes cross-compilation for osx_arm64 on
conda-forge.
diff --git a/setupext.py b/setupext.py
@@ -635,7 +635,7 @@ def do_custom_build(self, env):
                 "--with-png=no", "--with-harfbuzz=no", "--enable-static",
                 "--disable-shared"
             ]
-            host = sysconfig.get_config_var('BUILD_GNU_TYPE')
+            host = sysconfig.get_config_var('HOST_GNU_TYPE')
             if host is not None:  # May be unset on PyPy.
                 configure.append(f"--host={host}")
             subprocess.check_call(configure, env=env, cwd=src_path)

Original file line number	Diff line number	Diff line change
`@@ -635,7 +635,7 @@ def do_custom_build(self, env):`
`635`	`635`	`"--with-png=no", "--with-harfbuzz=no", "--enable-static",`
`636`	`636`	`"--disable-shared"`
`637`	`637`	`]`
`638`		`- host = sysconfig.get_config_var('BUILD_GNU_TYPE')`
	`638`	`+ host = sysconfig.get_config_var('HOST_GNU_TYPE')`
`639`	`639`	`if host is not None: # May be unset on PyPy.`
`640`	`640`	`configure.append(f"--host={host}")`
`641`	`641`	`subprocess.check_call(configure, env=env, cwd=src_path)`