round has been tested on Solaris/x86 and Linux hosts.
* Add host tools cap_mkdb, ctags, m4, uudecode.
* Protect __RCSID() and __COPYRIGHT() better.
* Reduce the number of places that need to include "config.h", to keep
sources closer to their "vanilla" versions.
* Add more compat #defines and autoconf-checked functions.
to write it. fwrite(3) is a noop in that case anyway, and the error
detection logic here was screwing up on the 0 return from fwrite(3)
(that return value is mandated by SUSv2 for size or count of 0).
While here, improve the error messgages given to the user.
if there are any mistakes, please report (i only speak English/Japanese).
currently, only singlebyte locales are usable.
TODO: enable multibyte handler in libc - there still are few design
discussions, but we are almost ready.