Linting with headers in subdirectories under /usr/include (GTK)

[ElliotLurie]

Hi, when writing a C programming with GTK, you have to compile your program with some header include options. This is typically defined via GCC/Make with pkg-config, however, I can't seem to get this set up with ALE and I get the following line:

>>3   #include <gtk/gtk.h> > 'gtk/gtk.h' file not found

How can I set this up properly?