[libcxx-commits] [PATCH] D89013: [libcxx] Support per-target __config_site in per-target runtime build

Petr Hosek via Phabricator via libcxx-commits libcxx-commits at lists.llvm.org
Wed Mar 31 15:25:01 PDT 2021


phosek added inline comments.


================
Comment at: clang/lib/Driver/ToolChains/Fuchsia.cpp:379
+
+    // Second add the generic one.
+    P.assign(Path);
----------------
ldionne wrote:
> Doesn't that break `#include_next` if both directories exist? Generally speaking, I think you only ever want to have a single directory containing the libc++ headers on your header search path.
See my comment, the per-target include path will only contain `__config_site` whereas the generic one contains all the headers other than `__config_site` so this works fine. It would even work if you had another copy of `__config_site` in the generic one which may be useful on platforms that don't currently support the multiarch layout like Darwin.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89013/new/

https://reviews.llvm.org/D89013



More information about the libcxx-commits mailing list