[LLVMbugs] [Bug 20601] New: Clang should should have an easy way to use libc++ and document it

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20601

            Bug ID: 20601
           Summary: Clang should should have an easy way to use libc++ and
                    document it
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Driver
          Assignee: unassignedclangbugs at nondot.org
          Reporter: chandlerc at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Currently, there is a '-stdlib=libc++' flag that tells Clang to use libc++
rather than another standard c++ library (if libc++ is not the default for a
particular platform).

We should clean up this flag name in any ways that we want:
- Perhaps it should use a -- prefix as is the new trend for the driver-level
options?
- It should probably have 'cxx' in the name?
(possibly: --cxx-std-lib=libc++, and maybe accept 'libcxx' as an alias for
'libc++'?)

Then we should add it to Clang's documentation.

(Filing this as a PR based on a discussion where someone just wanted to do this
and couldn't figure out how and didn't understand why the flag I suggested was
named the way it was named.)

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