'make check' fails on PPC64

Torbjorn Granlund tg-this-will-bounce-but-I-am-subscribed-to-the-list-honest at swox.com
Thu Feb 15 23:40:30 CET 2007


"Fuzzy Logic" <fuzzymo at gmail.com> writes:

  So, I ask again, Torbjorn. Does this sound like a compiler bug, a
  configure bug, or "other"?
  
Sure, like with all failures like that, I'd bet and arm and a leg that
it is a compiler bug.

It might seem that GMP is unusually unlucky with compilers, that it
triggers more bugs than other packages.  I believe that is an
illusion.  What really is happening, is that GMP has a test suite that
will find almost every miscompilation in the library.  Try a coverage
analysis program and you'll see; the GMP test suite covers every line
of the GMP C code.

It seems that some people see "make check" failures in GMP as a GMP
quality problem.  It is the contrary, of course!

We would all get shivers if we knew how many miscompiled binaries we
had in our systems.  In most cases, they will go unnoticed, but since
sshd, openssl, our firewall, etc, of course also are miscompiled, we
cannot know anything about the real security of any system.

-- 
Torbjörn


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