[Pkg-openmpi-maintainers] Bug#552397: openmpi: FTBFS on hurd-i386

[Pino Toscano]

Package: openmpi
Version: 1.3.3-2
Severity: important
Tags: patch
User: debian-hurd at lists.debian.org
Usertags: hurd

Hi,

currently openmpi does not build on GNU/Hurd for various small reasons, like
unconditional usage of PATH_MAX, MAXPATHLEN, and MAXHOSTNAMELEN, usage of
sigaction::sa_sigaction, and a wrong header check for recognizing Darwin.

The attached patch hopefully fixes all the issues:
- missing SA_SIGINFO, so a sa_handler is used; show_stackframe_handler() calls
  show_stackframe() with NULL parameters as that handler checks for non-NULL
  siginfo_t* and context* already
- some fixed-size char[] for getcwd() to get_current_dir_name() + free()
- some fixed-size char[] for gethostname() to a dynamic realloc() loop
- one gethostname() call commented out, as it seems unused...
- look for mach-o/arch.h instead of mach/mach_host.h to determine whether it is
  compiling on Darwin
- one malloc() + free() instead of a fixed-size char[PATH_MAX]

Please note that, given a .m4 macro is changed, then an autoreconf'ing of the
build system is needed.

Thanks,
-- 
Pino
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