[all-commits] [llvm/llvm-project] 3658da: [Driver] Switch clang++ to default Solaris 11.4 co...

[Rainer Orth via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3658dafe2c26c3e1242ff0505b9e8f95f0f5abf1
      https://github.com/llvm/llvm-project/commit/3658dafe2c26c3e1242ff0505b9e8f95f0f5abf1
  Author: Rainer Orth <ro at gcc.gnu.org>
  Date:   2026-06-02 (Tue, 02 Jun 2026)

  Changed paths:
    M clang/lib/Basic/Targets/OSTargets.h

  Log Message:
  -----------
  [Driver] Switch clang++ to default Solaris 11.4 compilation environment (#201063)

`clang++` has long followed `g++`'s lead predefining `_XOPEN_SOURCE=600`
on Solaris. As detailed in [Switch g++ to default Solaris 11.4
compilation
environment](https://gcc.gnu.org/pipermail/gcc-patches/2026-May/716990.html),
this is no longer necessary in Solaris 11.4.

Tested on `amd64-pc-solaris2.11` and `sparcv9-sun-solaris2.11`.



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