Hi Guix,

vimb fails to build on core-updates-frozen commit 
d508c5baab16f99818e6514351ed0ab7ad9e8116 with the attatched build log. 
Hilghlight of the error appears to be:

```
Package webkit2gtk-4.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `webkit2gtk-4.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'webkit2gtk-4.0' found
gcc bookmark.o
In file included from autocmd.h:26,
                  from autocmd.c:24:
main.h:24:10: fatal error: gtk/gtkx.h: No such file or directory
    24 | #include <gtk/gtkx.h>
       |          ^~~~~~~~~~~~
compilation terminated.
Package webkit2gtk-4.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `webkit2gtk-4.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'webkit2gtk-4.0' found
make[1]: *** [Makefile:43: autocmd.o] Error 1
make[1]: *** Waiting for unfinished jobs....
In file included from bookmark.c:23:
main.h:24:10: fatal error: gtk/gtkx.h: No such file or directory
    24 | #include <gtk/gtkx.h>
       |          ^~~~~~~~~~~~
```


Best,
Jack