[llvm-branch-commits] [flang] release/23.x: [flang] Fix POSIX.1/XPG checks in intrinsics-library.cpp (#201072) (PR #213109)

[Rainer Orth via llvm-branch-commits]

rorth wrote:

This one is crucial to get into the 23.1.0 release to unbreak the Solaris flang build.  It has been on `main` for 3 weeks now with no known issues.

https://github.com/llvm/llvm-project/pull/213109