> being new to PPC I must admit that I was slightly
> astonished to see that by default the C data type
> "char" is equivalent to "unsigned char".

Well, in ISO C, a char may be either signed or
unsigned.

> this is not only true for the gcc "specs" in
> netbsd-macppc, but moreover the "-fsigned-char"
> flag appears not to be used in the kernel builds.

This is quite strange. I've been on the RiscBSD
mailing-list (this is NetBSD/arm32) and it was
said that NetBSD required *signed* char (I don't
remember at which level), and this was annoying
because the ARM processors don't have a signed
byte-load or it is slower than the unsigned one.

Vincent Lefevre.=