GTK2/3/4: Refactor dw_init(), splitting off path detection into _dw_init_path(). Using argv[0] to detect the executable path is very inaccurate, so we will add platform specific code for Linux and FreeBSD to query the executable path. If platform specific code fails, fall back to argv[0] like before.

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@