2006-02-21  Andrew Stubbs  <andrew.stubbs@st.com>
    
    	* defs.h (directory_switch): Add prototype.
    	* main.c (captured_main): Use directory_switch() instead of
    	directory_command() to add directories from the -d switch.
    	* source.c (directory_switch): New function.
    	(add_path): Use buildargv() to parse spaces in filenames properly.
    	Strip multiple trailing '/' rather than just one.