[PATCH] build: import gtk-doc support

[Colin Helliwell]

> On 06 September 2017 at 20:18 Dan Williams <dcbw at redhat.com> wrote:
> 
> On Mon, 2017-08-28 at 12:59 +0200, Aleksander Morgado wrote:
> 
> > Remove the need to run `gtkdocize' when building from git; this
> > should
> > be an operation done by the maintainer when modernizing the gtk-doc
> > setup (think of e.g. gettextize), no need to do it unconditionally.
> > 
> > This makes it easier for platforms without gtk-doc to build from git.
> > 
> > When trying to build with documentation enabled and gtk-doc isn't
> > found, we get some nice warnings and errors in the configure report:
> > 
> > checking for gtk-doc... no
> >  configure: WARNING:
> >  You will not be able to create source packages with 'make dist'
> >  because gtk-doc >= 1.0 is not found.
> >  checking for gtkdoc-check... no
> >  checking for gtkdoc-check... no
> >  checking for gtkdoc-rebase... no
> >  checking for gtkdoc-mkpdf... no
> >  checking whether to build gtk-doc documentation... yes
> >  configure: error:
> >  You must have gtk-doc >= 1.0 installed to build documentation
> > for
> >  ModemManager. Please install gtk-doc or disable building the
> > 
> > documentation by adding '--disable-gtk-doc' to './configure'.
> > 
> > ---
> > 
> > Hey,
> > 
> > I believe this would be an overall improvement, especially when users
> > want to get the latest git master in platforms like buildroot or
> > openwrt/lede, which lack gtk-doc support.
> > 
> > We just want to consider updating the gtk-doc setup ourselves
> > (maintainers) much in the same way as the builtin gtester.make or the
> > gettextization.
> > 
> > What do you think?
> 
> Seems fine to me...
> 
> Dan
> 

Not sure if this is similar/same, but I have the same sort of issue when enabling introspection (which I now need) and cross-compiling - discussed here back in March.
I'm moving over now to using a stable release (i.e. tarball), but it would be useful to have the option to use git checkout.