[tnozaki-gdtoa] arithchk.c - rename IEEE_8087/IEEE_MC68k -> IEEE_LITTLE_ENDIAN/IEEE_BIG_ENDIAN

[Takehiko NOZAKI]

arithchk.c is cpu’s arithmeric checker & header file(arith.h) generator.

but N*BSD doesn’t use this generator and handly writing own arith.h in libc/arch/*/gdtoa

and rename macro IEEE_8087(LE)/IEEE_MC68k(BE) to IEEE_LITTLE_ENDIAN/IEEE_BIG_ENDIAN

maybe they think “8087” or “MC68k” is very confusious cause N*BSD supports various CPU(alpha, sparc, mips, sh, arm and more)

and they have been changed these definition.

‌

[Takehiko NOZAKI]

here is kleink@'s gdtoa first import commit.

http://mail-index.netbsd.org/source-changes/2006/01/25/msg196590.html
http://mail-index.netbsd.org/source-changes/2006/01/25/msg196592.html
http://mail-index.netbsd.org/source-changes/2006/01/25/msg196593.html
http://mail-index.netbsd.org/source-changes/2006/01/25/msg196594.html
http://mail-index.netbsd.org/source-changes/2006/01/25/msg196595.html
http://mail-index.netbsd.org/source-changes/2006/01/25/msg196605.html

[Takehiko NOZAKI]

roughly extracted diff related this issue