Re: [gtk-osx-users] "Python installation not usable" error in Big Sur

[Lee Marrett <lee marrett serato com>]

Hey John,

My apologies!

Yes - my reason for building gtk-osx is to be able to build another application which requires gtk: 
https://github.com/anko/hudkit which as far as I’m aware doesn’t exist in homebrew etc

Thank you for your help!

Lee

> On 15/01/2021, at 9:24 AM, John Ralls <jralls ceridwen us> wrote:
>
> Lee,
>
> Please remember to copy the list on all replies.
>
> As for how to add to your list of modules, it's what you pass to `jhbuild build` or include in the modules 
> variable in jhbuild-custom.
>
> Please read https://developer.gnome.org/jhbuild/stable/ and http://wiki.gnome.org/Projects/GTK/OSX. Keep in 
> mind that Gtk-OSX is not intended as a general-purpose package manager like Homebrew or MacPorts: It is 
> intended for developers/maintainers of Gtk-based applications to package their projects as Mac App bundles.
>
> Regards,
> John Ralls
>
>
>
> > On Jan 14, 2021, at 12:14 PM, Lee Marrett <lee marrett serato com> wrote:
> >
> > Thanks John,
> >
> > No worries - I shall try that.
> >
> > At the risk of sounding ridiculous, I’m not 100% sure on how to add things to my list of modules, any tips 
> > on doing that?
> >
> >
> >
> > > On 14/01/2021, at 5:06 PM, John Ralls <jralls ceridwen us> wrote:
> > >
> > >
> > >
> > > > On Jan 12, 2021, at 6:54 PM, Lee Marrett via gtk-osx-users-list <gtk-osx-users-list gnome org> wrote:
> > > >
> > > > Hello,
> > > >
> > > > Trying to run jhbuild build meta-gtk-osx-bootstrap meta-gtk-osx-gtk3 but getting an error during build:
> > > >
> > > > ../../../../gtk/source/gobject-introspection-1.64.1/giscanner/meson.build:111:2: ERROR: Problem 
> > > > encountered: Python installation not useable
> > > >
> > > > Logs say:
> > > >
> > > > Compiler for C supports arguments -Wno-unused-parameter: YES (cached) "python-3.8" could not be found in 
> > > > LIBPC 
> > > > (/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/pkgconfig),
> > > >  this is likely due to a relocated python installation Pkg-config binary for MachineChoice.HOST is 
> > > > cached. Determining dependency 'python-3.8' with pkg-config executable 
> > > > '/Users/username/gtk/inst/bin/pkg-config' PKG_CONFIG_PATH: 
> > > > /Users/username/gtk/inst/lib/pkgconfig:/Users/username/gtk/inst/share/pkgconfig:/usr/lib/pkgconfig 
> > > > Called /Users/username/gtk/inst/bin/pkg-config --modversion python-3.8` -> 1
> > > >
> > > > Found "python-3.8" via fallback pkgconfig lookup in PKG_CONFIG_LIBDIR/PKG_CONFIG_PATH Dependency python 
> > > > found: NO
> > > >
> > > > ../../../../gtk/source/gobject-introspection-1.64.1/giscanner/meson.build:111:2: ERROR: Problem 
> > > > encountered: Python installation not useable `
> > > >
> > > >
> > > > Any ideas how I might get it to look at the right place for python, which is definitely installed?
> > >
> > > I haven't tried building with the Apple-installed Python3 and I'm not able to blow up my build 
> > > environment to test it just now. The simplest work-around is to add python3 to your list of modules.
> > >
> > > Regards,
> > > John Ralls