[MacPorts] #18755: PPC problem on gmp 4.2.4_2

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Sat Mar 7 19:03:17 PST 2009


#18755: PPC problem on gmp 4.2.4_2
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 Reporter:  garribald@…               |       Owner:  mcalhoun@…           
     Type:  defect                    |      Status:  assigned             
 Priority:  Normal                    |   Milestone:  Port Bugs            
Component:  ports                     |     Version:  1.7.0                
 Keywords:  ppc                       |        Port:  gmp                  
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Comment(by mcalhoun@…):

 Replying to [comment:2 vinc17@…]:
 > So, basically -force_cpusubtype_ALL tells the assembler not to report
 any error if a non-generic instruction (optional instruction,
 extension...) is used. This means that the programmer needs to make sure
 that such instructions are (dynamically) executed only when they exist. By
 adding -force_cpusubtype_ALL, you hide a potential error made by upstream.
 I take your point, but GMP claims that its test suite is quite
 comprehensive, so this would be a mechanism to find errors made
 upstream.[[BR]]
 As far as I know, nobody has found any.

 I do not claim to be an expert on the PowerPC architecture, but
 -force_cpusubtype_ALL can't be that bad if it is the default for x86 and
 x86_64.

 In any event, this ticket concerns more the fact that
 -force_cpusubtype_ALL is not being set correctly.

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Ticket URL: <http://trac.macports.org/ticket/18755#comment:3>
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