[MacPorts] #36026: ld64 sometimes builds wrong which causes other software to fail to build

[MacPorts]

#36026: ld64 sometimes builds wrong which causes other software to fail to build
-------------------------+------------------------
  Reporter:  jwhowse4@…  |      Owner:  jeremyhu@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.1.2
Resolution:              |   Keywords:
      Port:  ld64        |
-------------------------+------------------------

Comment (by vaccari@…):

 I can well be mistaken, as I'm no expert here, but I thought the output of
 command

 {{{
 sudo clang -E .... -o _muldi3_s.o ...
 }}}

 (full command in comment #91) should be a preprocessed source code,
 despite its .o extrension, and that is the file I attached. The beginning
 of that file looks like this



 {{{
 # 1 "libgcc2.c"
 # 1 "libgcc2.c" 1
 # 1 "<built-in>" 1
 # 1 "<built-in>" 3
 # 146 "<built-in>" 3
 # 1 "<command line>" 1
 # 1 "<built-in>" 2
 # 1 "libgcc2.c" 2
 # 28 "libgcc2.c"
 # 1 "../../build/gcc/tconfig.h" 1

 # 1 "../../build/gcc/auto-host.h" 1
 # 7 "../../build/gcc/tconfig.h" 2

 # 1 "../include/ansidecl.h" 1
 # 9 "../../build/gcc/tconfig.h" 2
 # 29 "libgcc2.c" 2
 # 1 "../gcc/tsystem.h" 1
 # 45 "../gcc/tsystem.h"
 # 1 "/usr/bin/../lib/clang/4.1/include/stddef.h" 1 3 4
 # 31 "/usr/bin/../lib/clang/4.1/include/stddef.h" 3 4
 typedef __typeof__(((int*)0)-((int*)0)) ptrdiff_t;

 typedef __typeof__(sizeof(int)) size_t;

 typedef int wchar_t;
 # 46 "../gcc/tsystem.h" 2
 ...
 ...
 }}}

 This file comes out with no difference on the broken and on the working
 system.

-- 
Ticket URL: <https://trac.macports.org/ticket/36026#comment:94>
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