Building GDB 6.1 for SH target

[Julian Back <jback@mpc-data.co.uk>]

I've started using GDB 6.1 with an SH target as I wanted to have support 
for SH4A.  When I build GDB 6.1 for a target of "sh-linux" (which I used 
fine with GDB 6.0) I get a warning message when I run GDB:

warning: A handler for the OS ABI "GNU/Linux" is not built into this 
configuration
of GDB.  Attempting to continue with the default sh settings.

GDB then appears to work OK.

When I build GDB with a target of just "sh" I don't get this warning but 
then I don't get support for ELF binaries either.

At the moment I don't actually need Linux support (but I probably will 
in the future), but I do need ELF support.  I can live with the warning 
but I will want to distribute the GDB binary to others so I'd prefer to 
avoid it.

I could just remove the warning from the source, but what would be the 
correct way to fix this?  I would also be interested to know why GDB no 
longer seems to have Linux support for SH.

Thanks

Julian Back