Revert "[libc++] Do not set the `availability=XXX` feature when not testing against a system libc++"
This reverts commit 7dd6a862e, which broke more tests than it fixed.
diff --git a/libcxx/utils/libcxx/test/config.py b/libcxx/utils/libcxx/test/config.py
index 8d6b901..215faf2 100644
--- a/libcxx/utils/libcxx/test/config.py
+++ b/libcxx/utils/libcxx/test/config.py
@@ -418,7 +418,7 @@
# Configure the availability feature. Availability is only enabled
# with libc++, because other standard libraries do not provide
# availability markup.
- if self.use_deployment and self.cxx_stdlib_under_test == 'libc++' and self.use_system_cxx_lib:
+ if self.use_deployment and self.cxx_stdlib_under_test == 'libc++':
self.config.available_features.add('availability')
self.add_deployment_feature('availability')
