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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-19 04:49:25 +08:00
Sebastian Huber aae831b083 Synchronize <sys/time.h> with FreeBSD
This change is based on the FreeBSD commit:

Author: asomers <asomers@FreeBSD.org>
Date:   Mon Jul 30 15:46:40 2018 +0000

    Make timespecadd(3) and friends public

    The timespecadd(3) family of macros were imported from NetBSD back in
    r35029. However, they were initially guarded by #ifdef _KERNEL. In the
    meantime, we have grown at least 28 syscalls that use timespecs in some
    way, leading many programs both inside and outside of the base system to
    redefine those macros. It's better just to make the definitions public.

    Our kernel currently defines two-argument versions of timespecadd and
    timespecsub.  NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
    three-argument versions.  Solaris also defines a three-argument version, but
    only in its kernel.  This revision changes our definition to match the
    common three-argument version.

    Bump _FreeBSD_version due to the breaking KPI change.

    Discussed with: cem, jilles, ian, bde
    Differential Revision:  https://reviews.freebsd.org/D14725
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.
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