ports/154325: security/cryptopp fails to build

[Chris Tandiono]

>Number:         154325
>Category:       ports
>Synopsis:       security/cryptopp fails to build
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 27 06:30:07 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Chris Tandiono
>Release:        8.1-RELEASE-p2
>Organization:
Tau Beta Pi CA-A
>Environment:
FreeBSD host.local 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
security/cryptopp fails to build. It seems to be an intermittent problem affecting very few users with no apparent correlation. I get messages like:

{standard input}: Assembler messages:
{standard input}:343: Error: no such instruction: `palignr xmm5,xmm2,4'
{standard input}:343: Error: no such instruction: `palignr xmm6,xmm3,4'
{standard input}:349: Error: no such instruction: `palignr xmm7,xmm3,4'    
{standard input}:349: Error: no such instruction: `palignr xmm6,xmm2,4'
{standard input}:349: Error: no such instruction: `palignr xmm5,xmm1,4'
{standard input}:349: Error: no such instruction: `palignr xmm4,xmm0,4' 
>How-To-Repeat:
Attempt to compile the latest cryptopp from ports. It is unknown what other factors are necessary to induce this bug. If it helps, the processor in question is a Xeon E5335 which does have support for the instruction. It also doesn't happen on a similarly-configured machine with a different processor, which somehow adds -DCRYPTOPP_DISABLE_SSSE3 to its CXXFLAGS. I'm using gcc 4.2.1 and FreeBSD 8.1-RELEASE-p2 on both machines.
>Fix:
I think adding -DCRYPTOPP_DISABLE_SSSE3 to CXXFLAGS ameliorates the problem, but it doesn't explain why the assembler would somehow end up getting instructions it can't assemble. Also, the processor definitely supports SSSE3.

>Release-Note:
>Audit-Trail:
>Unformatted: