Probably I am doing something wrong, but I get a C Preprocessor error when compiling gtk3. This didn’t happen in 5.0. I am using Scratchbox, the Platform SDK, upgraded in the usual way.
In file included from /usr/include/sys/stat.h:465,
from /usr/include/glib-2.0/glib/gstdio.h:27,
from /usr/include/glib-2.0/glib-unix.h:37,
from ../gdk/wayland/gdkselection-wayland.c:25:
/srv/mer/toolings/SailfishOS-latest/opt/cross/lib/gcc/aarch64-meego-linux-gnu/10.3.1/include-fixed/bits/statx.h:38:25: error: missing binary operator before token “(”
38 | #if __glibc_has_include (“linux/stat.h”)