[MacPorts] #46754: llvm-3.6 does not recognize -assertions

[MacPorts]

#46754: llvm-3.6 does not recognize -assertions
----------------------+------------------------
 Reporter:  pguyot@…  |      Owner:  jeremyhu@…
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.3.3
 Keywords:            |       Port:  llvm
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 Even when {{{-assertions}}} is passed, assertion mode is ON.

 I believe {{{--enable-assertions}}} is NOP and {{{--disable-assertions}}}
 should be passed instead as assertions are enabled by default.
 This probably is also the case with other versions of llvm.

 {{{./configure --help}}} indeed prints:

 {{{
   --enable-assertions     Compile with assertion checks enabled (default
 is
                           YES)
 }}}

 A patch is attached that fixes this. I didn't bump {{{revision}}}, though.

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Ticket URL: <https://trac.macports.org/ticket/46754>
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