[MacPorts] #59402: llvm and clang +assertions ?

[MacPorts]

#59402: llvm and clang +assertions ?
-------------------------+--------------------
  Reporter:  mouse07410  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  clang-9.0   |
-------------------------+--------------------

Comment (by kencu):

 Actually there are descriptions, but you have to specifically ask for
 them, e.g.:
 {{{
 $ port variants clang-9.0
 clang-9.0 has the variants:
 [+]analyzer: Install clang static analyzer
    assertions: Enable assertions for error detection (has performance
 impacts,
                especially on JIT)
    debug: Enable debug binaries
 [+]defaultlibcxx: default to -stdlib=libc++ if not otherwise specified
 [+]libstdcxx: -stdlib=macports-libstdc++ searches for MacPorts libstdc++
    universal: Build for multiple architectures
 }}}

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Ticket URL: <https://trac.macports.org/ticket/59402#comment:3>
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