K 10
svn:author
V 11
arichardson
K 8
svn:date
V 27
2020-08-25T13:23:31.326241Z
K 7
svn:log
V 569
Add missing FreeBSD functions to -legacy when building on macOS/Linux

In most cases this simply builds the file from lib/libc for missing
functions (e.g. strlcpy on Linux etc.). In cases where this is not possible
I've added an implementation to tools/build/cross-build.

The fgetln.c/fgetwln.c/closefrom.c compatibility code was obtained from
https://gitlab.freedesktop.org/libbsd/libbsd, but I'm not sure it makes
sense to import it into to contrib just for these three bootstrap files.

Reviewed By:	brooks
Differential Revision: https://reviews.freebsd.org/D25978

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