Checking for an include file that requires another include file

[Ralph Böhme]

On Sat, Jan 03, 2015 at 01:44:13PM -0800, Richard Sharpe wrote:
> On Sat, Jan 3, 2015 at 1:28 PM, Ralph Böhme <rb at sernet.de> wrote:
> > On Sat, Jan 03, 2015 at 11:09:20AM -0800, Richard Sharpe wrote:
> >> Hi,
> >>
> >> I am working on the Zookeeper registry backend and want to check for
> >> the existence of a Zookeeper include file, zookeeper_log.h, that
> >> requires zookeeper itself.
> >>
> >> This requires that -I/usr/local/include/zookeper be passed to CHECK_HEADERS.
> >>
> >> How do I do that?
> >
> > Can you use pkg_config for the zookeeper check?
> >
> > You need something like this:
> >
> >     if Options.options.with_zookeeper:
> >         conf.check_cfg(package='zookeeper', args='--cflags --libs',
> >                        msg='Checking for zookeeper', uselib_store="ZOOKEEPER")
> >         conf.CHECK_HEADERS('zookeeper_log.h', lib='zookeeper')
> >
> > Cf source3/wscript, l. 1511 where we solve the same problem for glusterfs.
> 
> Unfortunately, Zookeeper does not have a pkg_config ... will have to
> look for another way.

have you considered something like this?

    if Options.options.zookeeper_dir:
        conf.env['CPPPATH_ZOOKEEPER'] = Options.options.zookeeper_dir + '/include'
        conf.env['LIBPATH_ZOOKEEPER'] = Options.options.zookeeper_dir + '/lib'

    conf.CHECK_HEADERS('zookeeper_log.h', lib='zookeeper')

Not tested, just adopted from the cephfs test in source3/wscript.

Cheerio!
-Ralph

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