Failure building on HP-UX with more than 2 threads (internal bug #4308)

Torbjörn Granlund tg at
Sat Jun 9 12:06:32 UTC 2018

Mișu Moldovan <misu.moldovan at> writes:

  Just wanted to let you know I found a workaround for this particular
  issue.  We are able to build GMP on HP-UX with more than 2 threads
  using the HP-UX C++ compiler, when invoked as an ANSI C compiler, for
  example with CC="/opt/aCC/bin/aCC -Ae".  Maybe worth documenting on
  your side?

Are you saying that a parallel build fails with one compiler and works
with another, and that the "make" command is somehow of less importance?

The only somewhat realistic way the compiler could cause parallel builds
failures is if it uses hardwired temp filenames.  But I'd be extremely
surprised if that were the case.

Please encrypt, key id 0xC8601622

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