[libvirt] [PATCHv2] build: fix build on platforms without ptsname_r

[Daniel P. Berrange]

On Fri, Nov 04, 2011 at 08:06:05PM -0600, Eric Blake wrote:
> MacOS lacks ptsname_r, and gnulib doesn't (yet) provide it.
> But we can avoid it altogether, by using gnulib openpty()
> instead.  Note that we do _not_ want the pt_chown module;
> all systems that we currently port to can either properly do
> openpty() and/or grantpt(), or lack ptys altogether; we are
> not porting to any system that requires us to deal with the
> hassle of installing a setuid pt_chown helper just to satisfy
> gnulib's ability to provide openpty() on even more platforms.
> 
> * .gnulib: Update to latest, for openpty fixes
> * bootstrap.conf (gnulib_modules): Add openpty, ttyname_r.
> (gnulib_tool_option_extras): Exclude pt_chown module.
> * src/util/util.c (virFileOpenTty): Rewrite in terms of openpty
> and ttyname_r.
> * src/util/util.h (virFileOpenTtyAt): Delete dead prototype.
> ---
> 
> Alas, this is just complicated enough that I don't feel comfortable
> pushing it under the build-breaker rule, even though I have verified
> that it fixes builds on both FreeBSD and Cygwin, as well as still
> behaves correctly with LXC containers on Linux.  Anyone willing to
> give this a review before 0.9.7 gets released?
> 
>  .gnulib         |    2 +-
>  bootstrap.conf  |    3 ++
>  src/util/util.c |   73 ++++++++++++++++++++++++++++++++++++++++--------------
>  src/util/util.h |    5 ----
>  4 files changed, 58 insertions(+), 25 deletions(-)

ACK


Daniel
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