[llvm-bugs] [Bug 27516] New: test suite: add a skipUnless-style decorator for skipping unless libc++ is available

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27516

            Bug ID: 27516
           Summary: test suite: add a skipUnless-style decorator for
                    skipping unless libc++ is available
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: todd.fiala at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

This is meant to implement:
https://bugs.swift.org/browse/SR-800

>From there:

Upstream llvm.org Linux folks currently assume using gcc as a compiler is a
sufficient guard against building on a Linux without libc++. However, on Swift
Ubuntu, we build on Linux with clang (rather than gcc) but don't have libc++.
So the "compiling with clang" skipUnless variant isn't sufficient. Also, it's
not really checking the key piece: whether libc++ is available.

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