[MacPorts] #63164: cctools @949: lipo make FAT libraries on i386 Mac OS X Tiger with wrong offset: fail to load

[MacPorts]

#63164: cctools @949: lipo make FAT libraries on i386 Mac OS X Tiger with wrong
offset: fail to load
------------------------------+--------------------
  Reporter:  bradleyCPA       |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  cctools libgcc7  |
------------------------------+--------------------

Comment (by kencu):

 log2(double x) on Tiger is supposed to return a double, not a float. So as
 it is broken on i386 I saw the uint32_t overflowing the int32 on i386
 Tiger being the issue, as a uint32_t does not fit into 32bits.

 But perhaps it uses a float internally and then does a poor internal
 conversion to a double. log2(4096) is exactly 12, so that would be really
 really bad if so, but ... it's Tiger!

 {{{
      double
      log2(double x);

      long double
      log2l(long double x);

      float
      log2f(float x);

 }}}

 BTW, on PPC Tiger, log2 works properly, and there is no such issue. It's
 only an i386 thing, it appears:
 {{{
 $ ./kentest1
 4096 12 12.000000
 4096 12 12.000000
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/63164#comment:40>
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