We’ve been bitten before by symbol names changing: https://github.com/servo/heapsize/pull/46, and upstream is planning to stop using jemalloc by default: https://github.com/rust-lang/rust/issues/33082#issuecomment-309781465
So use the (relatively) new `#[global_allocator]` attribute to explicitly select the system allocator on Windows and jemalloc (now in an external crate) on other platforms. This choice matches current defaults.
Source-Repo: https://github.com/servo/servo
Source-Revision: 07e9794306d597afe5d90d192fd32a99572c3cc3
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : c773f809c4f783e63c42218220e7c8c190727e6e