[MacPorts] #20906: babl opcode errors on OS X 10.6

[MacPorts]

#20906: babl opcode errors on OS X 10.6
----------------------------------+-----------------------------------------
  Reporter:  macports@…           |       Owner:  devans@…           
      Type:  defect               |      Status:  closed             
  Priority:  Normal               |   Milestone:                     
 Component:  ports                |     Version:  1.8.0              
Resolution:  fixed                |    Keywords:                     
      Port:  babl                 |  
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Comment(by albert.veli@…):

 I have done some more investigations into this and I traced it to the
 function arch_get_vendor(), and the following section:
 {{{
 #ifndef ARCH_X86_64
   /* Only need to check this on ia32 */
   __asm__ ("pushfl\n\t"
            "pushfl\n\t"
            "popl %0\n\t"
            "movl %0,%1\n\t"
            "xorl $0x200000,%0\n\t"
            "pushl %0\n\t"
            "popfl\n\t"
            "pushfl\n\t"
            "popl %0\n\t"
            "popfl"
            : "=a" (eax),
              "=c" (ecx)
            :
            : "cc");

   if (eax == ecx)
     return ARCH_X86_VENDOR_NONE;
 #endif
 }}}
 This trouble code should not be run if arch is x86_64, but it is run
 anyway. So I noted configure detects the build system as "i386-apple-
 darwin10.0.0". This in turn comments out the ARCH_X86_64 define from
 config.h. So I tried to force it to set ARCH_X86_64 by writing the
 following into the babl portfile:

 configure.args = --build=x86_64-apple-darwin10.0.0

 I have no idea if this is a good solution, but at least it works for babl.
 And it works for gegl too.

-- 
Ticket URL: <http://trac.macports.org/ticket/20906#comment:13>
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