On 5/22/2020 7:18 PM, Ken Brown via Cygwin-apps wrote:
> I've been planning to adopt gimp and some related build dependencies.  My reason 
> is that I use gimp and would like to see it kept up to date.
> 
> I thought I had all the prerequisites I needed.  But when I built gimp, I 
> discovered that it used two functions, g_set_weak_pointer and 
> g_date_time_new_from_iso8601, that were introduced in glib-2.56.
> 
> [gimp's configure.ac says that it only requires glib 2.54.2, but this seems to 
> be wrong.  Cygwin's glib is at 2.54.3.  Fedora's is at 2.64.3, which is the 
> latest upstream release.]
> 
> I'd appreciate some advice about how to proceed.  I'm not interested in adopting 
> all of GNOME, and it probably doesn't make sense for different components of 
> GNOME to be adopted by different people.
> 
> A short-term solution (from my personal POV) would be for me to do a 
> non-maintainer update of glib to 2.56, assuming that's doable without messing up 
> other GNOME components.
> 
> A better solution (again from my personal POV) would be for someone to adopt 
> GNOME and update it to its latest release.

To focus the discussion a little better, I've built and installed 
glib2.0-2.56.4.  My cygport file and patches are attached.  I can now build 
gimp-2.10.18, and it seems to run fine in limited testing.

Ken