Add configuration option to the base/rom extension to make the toolchain (ARMCC/GCCE) known to the preprocessor stage of romb build.
project : n:\python\python-1.5.1\pc\wat_os2\pyth_os2.exe n:\python\python-1.&
5.1\pc\wat_dos\pyth_dos.exe .SYMBOLIC
!include n:\python\python-1.5.1\pc\wat_os2\pyth_os2.mk1
!include n:\python\python-1.5.1\pc\wat_dos\pyth_dos.mk1