[MacPorts] #37495: ubsan doesn't work with clang 3.2

[MacPorts]

#37495: ubsan doesn't work with clang 3.2
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 Reporter:  arsenm2@…               |      Owner:  macports-tickets@…
     Type:  defect                  |     Status:  new
 Priority:  Normal                  |  Milestone:
Component:  ports                   |    Version:  2.1.2
 Keywords:  clang,cmake,ubsan,llvm  |       Port:  clang-3.2
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 If you try to use ubsan with clang, it always fails:

 $ /opt/local/bin/clang -fsanitize=undefined arst.c
 Undefined symbols for architecture x86_64:
   "___ubsan_handle_add_overflow", referenced from:
       _main in arst-nGlYc7.o
 ld: symbol(s) not found for architecture x86_64
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)

 The fix is clang should build should use cmake instead of autotools since
 it's basically the preferred LLVM build system at this point.

 http://llvm.org/bugs/show_bug.cgi?id=14341

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Ticket URL: <https://trac.macports.org/ticket/37495>
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