Re: [gtk-osx-users] GTK+ macOS: fontconfig

[John Ralls <jralls ceridwen us>]

What version of OSX? Did you start from bootstrap in a completely clean prefix?

Regards,
John Ralls

> On Mar 22, 2018, at 11:25 AM, Jeffrey Sheen <jeffrey sheen00 alumni imperial ac uk> wrote:
>
> Hi John,
>
> Thank you for your help so far. I managed to build a version of gtk including freetype for the native 
> architecture of my machine (x86_64).
>
> However, I need an i386 build for the distribution, and have encountered linker errors after altering 
> `.jhbuildrc-custom' to:
>
> setup_sdk(target='10.7', sdk_version=None, architectures=['i386'])
>
> The errors are all of the form:
>
> Undefined symbols for architecture i386:
>   "_main", referenced from:
>       start in crt1.10.6.o
> ld: symbol(s) not found for architecture i386
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
>
> Having read the docs, I believe I have the `setup_sdk' parameterisation correct, but perhaps you can spot 
> my mistake?
>
> On 16 March 2018 at 21:20, Jeffrey Sheen <jeffrey sheen00 alumni imperial ac uk> wrote:
> Thank you John. I'll try altering the build parameters as you've suggested.
>
> I take your point about native font management.
>
> The issue is that we've found Win32 native font selection to be erratic, changing fonts between Pango 
> layout objects, despite a static font description. We now bundle fonts with the distributable to assure 
> consistency.
>
> If there is a native way to stream in packaged fonts other than fontconfig, then we will try that.
>
>
> On 16 Mar 2018 20:52, "John Ralls" <jralls ceridwen us> wrote:
>
>
> > On Mar 16, 2018, at 1:35 PM, Jeffrey Sheen <jeffrey sheen00 alumni imperial ac uk> wrote:
> >
> > Dear list,
> >
> > I have a project that I am porting to macOS that uses the GTK+ stack, specifically pango+cairo+fontconfig.
> >
> > The code relies on being able to create `FcConfig' (fontconfig) objects and call 
> > `pango_fc_font_map_set_config' to bind them to pango.
> >
> > After following the build steps on the wiki, I found that the built product did not include the 
> > fontconfig libraries or headers, or the interop header files for pango.
> >
> > I was expecting to find `fontconfig/fontconfig.h' and `pango/pangofc-fontmap.h'.
> >
> > Is there a build setting that I must alter/add to target fontconfig?
> >
> > Jeff.
> >
> > N.B. I had previously asked this question to gtk-osx-devel-list, but was redirected to gtk-osx-users-list.
>
> For code like that there's meta-gtk-osx-freetype. Add that to your module list or make it a dependency of 
> your app's module.
>
> However, if you have commit on the project it would be more portable to *not* use fontconfig objects so 
> that Pango can use the native font backends on platforms other than X11.
>
> Regards,
> John Ralls