`pkg-config gtkmm-3.0 --cflags --libs`
The above is likely wrong!
What likely needs to be in compiler
`pkg-config gtkmm-3.0 --cflags`
What likely needs to be in linker
`pkg-config gtkmm-3.0 --libs`
Tim S.
For gtkmm4 on Debian Trixie I used successfully:
in the other compiler options:
`pkg-config gtkmm-4.0 --cflags`
and in the other linker options:
`pkg-config gtkmm-4.0 --libs`
But I want to clarify that the backticks ` are obviously essential. It only works if they are included. I failed for a while until I finally added them.