[Bug binutils/18998] New: Please enable -Wno-unknown-warning-option when compiling under Clang

[noloader at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18998

            Bug ID: 18998
           Summary: Please enable -Wno-unknown-warning-option when
                    compiling under Clang
           Product: binutils
           Version: 2.26 (HEAD)
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: noloader at gmail dot com
  Target Milestone: ---

Clang does not understand a few warnings used by GCC. Combined with -Werror,
this results in a failed compile.

I understand I can perform the following, but this seems like one of those
things that could be easily automated:

    export CFLAGS="-g2 -O2 -Wno-unknown-warning-option"

Here's what GCC reports under OS X 10.8.5:

$ gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr
--with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin12.6.0
Thread model: posix

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