[MacPorts] #65147: nettle fails to build for x86_64 with gcc10-bootstrap: sha256-compress.asm:208:no such instruction

[MacPorts]

#65147: nettle fails to build for x86_64 with gcc10-bootstrap:
sha256-compress.asm:208:no such instruction
---------------------------+---------------------------------
  Reporter:  barracuda156  |      Owner:  ryandesign
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  x86_64, snowleopard
      Port:  nettle        |
---------------------------+---------------------------------

Comment (by barracuda156):

 This may be due to:
 {{{
 # error: invalid instruction mnemonic 'sha1rnds4'
 compiler.blacklist  *gcc-4.* {clang < 500}
 }}}

 Unless I remove this blacklist, Macports ignores the setting to use
 `gcc10-bootstrap` to build.

-- 
Ticket URL: <https://trac.macports.org/ticket/65147#comment:1>
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