this definition becomes actually useful. This is needed for
compilation on Arm until somebody fixes the assembler files for Arm.
* src/base/digitseq/cl_asm.h: Likewise.
* src/base/digitseq/cl_asm_.cc: Likewise.
* */Makefile.in: Added `override' in front of `CPPFLAGS +=' so
one can say `make CPPFLAGS=-DFOOBAR'.