OpenBSD-4.6/gnu/egcs/gcc/README.ACORN

Specifying the -g flag to GCC on a RISC iX machine requires upgrading the 
standard assembler distributed with both RISC iX 1.1 and RISC iX 1.2 with a 
replacement that is available from Acorn.  This version of the assembler is
also an order of magnitude faster when assembling to an NFS mounted 
file-system.

Users of RISC iX 1.2 and above can obtain a copy of the assembler from the 
following places:

1) Via ftp from acorn.acorn.co.uk, directory pub/riscix.

2) From Acorn Customer Services.

3) From Granada Microcare.

Users of versions of RISC iX prior 1.2 should contact Acorn Customer Services;
the assembler available on the net will not work with these versions due to
changes in the shared libraries and system call numbers.