Bugs in gui/back

[Andreas Höschler]

Hi all,

after 10 years of successfully using an ancient GNUstep tree I have upgraded to

        gnustep-back-0.25.1.tar.gz  
        gnustep-gui-0.25.1.tar.gz
        gnustep-base-1.25.0.tar.gz  
        gnustep-make-2.7.0.tar.gz

and am testing it on Ubuntu 16.04. The sources built without issues. That's 
good. 

However, I seem to be far away from getting anything from our software stack to 
run on the current GNUstep sources. I have already fixed an issue with 
NSTabView (will report/summarize later) but had to go back to zero with the 
most simple test app to test out gui and back. 

I currently have a window with just one button and a spacer above and below it 
and am trying to resize the window vertically which works. However, 

NSWindow:

        - (void)setFrame:(NSRect)frameRect display:(BOOL)flag

is never called when I do this which is probably the reason why auto 
relayouting the content does not work. On MacOSX (same sources) I get a bunch 
of 

2018-04-20 14:36:31.770 TabTest[8909:903] setFrame {{26, 282}, {97, 124}} 
display 1
2018-04-20 14:36:31.780 TabTest[8909:903] setFrame {{26, 285}, {97, 121}} 
display 1
2018-04-20 14:36:31.804 TabTest[8909:903] setFrame {{26, 287}, {97, 119}} 
display 1
2018-04-20 14:36:31.831 TabTest[8909:903] setFrame {{26, 288}, {97, 118}} 
display 1
2018-04-20 14:36:31.881 TabTest[8909:903] setFrame {{26, 289}, {97, 117}} 
display 1
2018-04-20 14:36:31.931 TabTest[8909:903] setFrame {{26, 289}, {97, 117}} 
display 1
...

calls when I vertically resize the window and the content is relayouted just 
fine!?

Any idea where to look from here? Which part in GNUstep is responsible for 
sending setFrame:display: to NSWindow when dragging the window larger and 
smaller? I guess this is more a back issue than gui!? If I remember correctly 

        tar xvfz gnustep-back-0.25.1.tar.gz
        cd gnustep-back-0.25.1
        ./configure
        make
        make install
        cd ..

chose cairo on the current Ubuntu machine!? I used to have lib-art under 
Solaris!?

Thanks a lot,

 Andreas