Untested GTK3 change to use the new gtk_grid_remove_*() which were introduced in version 3.10. I don't have 3.10 installed yet, but will test this code soon. These allow me to remove a crude work-around in earlier versions that skipped over empty grid spaces. In 3.10 and later the grid should contract and remove the unused rows/columns. Might need a similar change in dw_box_unpack().

prefix=@prefix@
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${exec_prefix}/include
 
Name: dwindows
Description: Dynamic Windows Cross platform UI Toolkit
Version: @VERSION@
Libs: -L${prefix}/lib -ldwindows @LIBS@
Cflags: -I${prefix}/include @CFLAGS@ -D@DW_DEFINE@