--- a/setup.py Thu Jan 16 11:27:12 2020 +0100
+++ b/setup.py Thu Jan 16 13:34:04 2020 +0100
@@ -1351,10 +1351,19 @@
env['HOME'] = pwd.getpwuid(os.getuid()).pw_dir
cargocmd = ['cargo', 'rustc', '-vv', '--release']
+
+ feature_flags = []
+
if sys.version_info[0] == 3 and self.py3_features is not None:
- cargocmd.extend(
- ('--features', self.py3_features, '--no-default-features')
- )
+ feature_flags.append(self.py3_features)
+ cargocmd.append('--no-default-features')
+
+ rust_features = env.get("HG_RUST_FEATURES")
+ if rust_features:
+ feature_flags.append(rust_features)
+
+ cargocmd.extend(('--features', " ".join(feature_flags)))
+
cargocmd.append('--')
if sys.platform == 'darwin':
cargocmd.extend(