csc.scm.in contained a hardwired -DHAVE_CHICKEN_CONFIG_H. I have
removed it. Build flags must be generated by the particular build
(./configure, makefile.vc, CMake) and passed through @address@hidden
Different build systems use different flags; for instance, CMake does
not have a chicken-config.h, nor should it.
Changes need to be made to the ./configure build system. I have not
done them, as I don't really know what the right way to do it is, nor do
I want to know. I expect it is trivial for someone else.