1) Make prep_env.pl apply a patch to epoc32/sbs_config/s60_sbs_config.xml to replace the ARM
kernel-side runtime ksrt4_0.lib with the GCCE one ksrt_gcce.lib
2) Fix romnibus.pl so it won't do case-tampering on the epocroot prefix of source paths in oby/iby files.
#define LIST_1 0x63faa001
#define BEGIN_EXCEPT 0x63faa002
#define END_EXCEPT 0x63faa003
#define SPECIAL_STRING 0x63faa004
#define UNBROKEN_STRING 0x63faa005
#define BROKEN_STRING 0x63faa006
#define SYS_SPECIAL_CHARACTERS 0x63faa007
#define SYS_STRING 0x63faa008
#define SYS_DIMMED_MSG 0x63faa009
#define SYS_LOCKED_MSG 0x63faa00a
#define SYS_BUSY 0x63faa00b
#define SYS_SCANNING 0x63faa00c
#define SYS_PRINTING_TO 0x63faa00d
#define SYS_PAGE_IS 0x63faa00e
#define SYS_ARRAY_ONE 0x63faa00f
#define SYS_BUTTON_ONE 0x63faa010
#define SYS_FLPTED_ONE 0x63faa011
#define SYS_MENUBAR_ONE 0x63faa012