[MacPorts] #30310: cdrtools-3.00 hangs during configure/compilation creating avoffset.h

[MacPorts]

#30310: cdrtools-3.00 hangs during configure/compilation creating avoffset.h
-----------------------------------------+----------------------------------
 Reporter:  pkutzner+macports@…          |       Owner:  bytestorm@…        
     Type:  defect                       |      Status:  new                
 Priority:  Normal                       |   Milestone:                     
Component:  ports                        |     Version:  2.0.0              
 Keywords:  lion                         |        Port:  cdrtools           
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Comment(by jhiesey@…):

 I have been having this problem (avoffset hangs during smake build) on
 Snow Leopard with XCode 4.0.2 as well as on Lion with XCode 4.1.

 I attached gdb to the hung avoffset process, and from this it looks like
 avoffset.c is being miscompiled.  The loop to scan the stack looks like
 this:

 {{{
         while (fp->fr_savfp) {
                 if (fp->fr_savpc == 0)
                         break;

                 fp = (struct frame *)fp->fr_savfp;

                 i++;
         }
 }}}

 but the compiler generates a wrong jump at the top of the loop, causing it
 to just loop forever on that line:

 {{{
 0x000000010ace3ab0 <main+304>:  jmp    0x10ace3ab0 <main+304>
 }}}

 This looks like a backend bug in llvm to me.  Compiling with gcc-4.2
 works, while clang and llvm-gcc-4.2 both fail.

 Since I've never submitted a patch for MacPorts before (or even posted on
 a ticket), I think I'll let someone else submit a patch for the portfile.

-- 
Ticket URL: <https://trac.macports.org/ticket/30310#comment:7>
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