[MacPorts] #65153: nss fails to build for x86_64 on 10.6.8: no such instruction: `pclmulqdq $16, %xmm2, %xmm0'

[MacPorts]

#65153: nss fails to build for x86_64 on 10.6.8: no such instruction: `pclmulqdq
$16, %xmm2,%xmm0'
---------------------------+---------------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  x86_64, snowleopard
      Port:  nss           |
---------------------------+---------------------------------

Comment (by barracuda156):

 UPD. And while in theory there are options to disable unsupported
 instructions, `nss` ignores them.

 Tried `configure.cflags-append -DNSS_DISABLE_PCLMUL -DNSS_DISABLE_HW_AES`,
 tried `build.args-append NSS_DISABLE_PCLMUL=1 NSS_DISABLE_HW_AES=1`, tried
 to cheat it into thinking it is on Nehalem where these instructions do not
 exist: `configure.cflags-append -mtune=nehalem -mno-pclmul -mno-
 vpclmulqdq`, nothing works. It is hopelessly broken.

-- 
Ticket URL: <https://trac.macports.org/ticket/65153#comment:2>
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