[libc++] Make __shared_weak_count vtable consistent across all build configurations
This patch ensures that __shared_weak_count provides a consistent vtable
regardless of if RTTI is enabled or if we are targeting a static or shared
libc++ build.
This patch is technically ABI breaking, but only for a very specific
configuration that no vendor should be shipping.
Note that _LIBCPP_BUILD_STATIC is not normally defined when building
libc++.a, but instead it must be manually provided by the user or the
__config_site.
Differential Revision: https://reviews.llvm.org/D32838
GitOrigin-RevId: 229db3647491ed2b2706a9b9ce13a97e38be6fa0
1 file changed
