[MacPorts] #51097: gcc5 -- xgcc internal compiler error: Illegal instruction: 4

[MacPorts]

#51097: gcc5 -- xgcc internal compiler error: Illegal instruction: 4
-----------------------+-------------------
  Reporter:  gnwiii@…  |      Owner:  mww@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.4
Resolution:            |   Keywords:
      Port:  gcc5      |
-----------------------+-------------------

Comment (by gnwiii@…):

 On the older system (iMac 27-inch mid-2010 (i5-760)) where the macports
 binary failed:

 {{{
 $ port test gmp
 Warning: MacPorts running without privileges. You may be unable to
 complete certain actions (e.g. install).
 --->  Fetching distfiles for gmp
 --->  Attempting to fetch gmp-6.1.0.tar.bz2 from
 http://mirrors.ibiblio.org/gnu/ftp/gnu/gmp
 --->  Verifying checksums for gmp
 --->  Extracting gmp
 --->  Applying patches to gmp
 --->  Configuring gmp
 --->  Building gmp
 --->  Testing gmp
 }}}

 I assume no news is good news. For this system, GMP used
 "{{{/usr/bin/clang ... -mtune=corei7 -march=corei7}}}".

 {{{
 $  $(port dir gmp)/work/gmp-6.1.0/config.guess
 nehalem-apple-darwin15.4.0
 }}}

 The newer system (iMac Retina 5K, 27-inch, Late 2015, corei5):

 {{{
 $ $(port dir gmp)/work/gmp-6.1.0/config.guess
 skylake-apple-darwin15.4.0
 }}}

 For this sysmtem, GMP used "{{{/usr/bin/clang ... -mtune=skylake
 -march=broadwell}}}"

-- 
Ticket URL: <https://trac.macports.org/ticket/51097#comment:8>
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