• lib/msun/Makefile b/lib/msun/Makefile: . Disconnect imprecise.c from the build. This file can be deleted. . Add b_tgammal.c to the build for ld80 and ld128 targets. The ld128 is a 'git mv' of imprecise.c to ld128/b_tgammal.c.

• lib/msun/ld80/b_expl.c: . New file. Implement expD for ld80 targets. This is based on bsdsrc/b_exp.c.

• lib/msun/ld80/b_logl.c: . New file. Implement logD for ld80 targets. This is based on bsdsrc/b_log.c.

• lib/msun/ld80/b_tgammal.c b/lib/msun/ld80/b_tgammal.c . New file. Implement tgammal(x) for ld80 targets.

Submitted by: Steve Kargl
Differential Revision: https://reviews.freebsd.org/D33444
Reviewed by: pfg

(cherry picked from commit 03a88e3de9c68182d21df94b1c8c7ced930dbd1f)