Add configuration option to the base/rom extension to make the toolchain (ARMCC/GCCE) known to the preprocessor stage of romb build.
BGEN -- Automatic Generation of Extension Modules
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This directory contains BGEN -- a package that helps in generating
complete source code for Python extension module. For examples of its
use, see the Mac Python source distribution (available separately
from the Python ftp archives). Note that BGEN is not Mac specific!
WARNING: bgen has been removed in 3.0.