Red Hat's newlib C library with support for Jehanne
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Yaakov Selkowitz 6ba26630e0 Feature test macros overhaul: sys/features.h
This is the complete rework of the feature tests macros for better
compatibility with GNU libc, primarily based on the Linux man pages
documentation:

http://man7.org/linux/man-pages/man7/feature_test_macros.7.html

The previous implementation was flawed in its approach that macros were
often used to hide symbols if defined (e.g. !defined __STRICT_ANSI__ or
!defined _POSIX_SOURCE), whereas the approach of glibc is that these macros
make symbols available when defined (e.g. defined _BSD_SOURCE, or as used
internally, #if __BSD_VISIBLE).  As much open-source software is written
with glibc in mind, this necessitated patching numerous packages just to
compile.

In particular, __STRICT_ANSI__ (which is defined by gcc -ansi or -std=c*)
was given too much importance.  This implementation limits the influence
of __STRICT_ANSI__ to controlling the default when no other feature test
macros are defined, and to the inclusion of <alloca.h> in <stdlib.h> as
documented.  These are the only places where __STRICT_ANSI__ should be
tested.

The following macros are now accepted: _ATFILE_SOURCE, _BSD_SOURCE,
_DEFAULT_SOURCE, _ISOC99_SOURCE, _ISOC11_SOURCE, _LARGEFILE_SOURCE,
_SVID_SOURCE, _XOPEN_SOURCE_EXTENDED.

The existing __*_VISIBLE internal macros have been kept mostly
compatible with the original BSD implementation, with some changes to
the criteria which controls them.  Several more macros in this style
have been added where needed for concision or accuracy.

Enabling C++11 or newer in the compiler also enables C99 and C11
functions.  Doing so should help move away from the need to define
_GNU_SOURCE in g++ for _GLIBCXX_USE_C99 support as on Linux:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51749

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:06:40 -05:00
config 2014-05-14 Sandra Loosemore <sandra@codesourcery.com> 2014-05-14 23:24:37 +00:00
etc PR other/46202: implement install-strip. 2010-11-20 19:37:57 +00:00
include For the RX port, avoid using string instructions when __RX_DISALLOW_STRING_INSNS__ is defined. 2015-04-23 21:57:13 +02:00
libgloss or1k: properly restore timer 2016-03-13 12:50:23 +01:00
newlib Feature test macros overhaul: sys/features.h 2016-03-17 21:06:40 -05:00
texinfo * texinfo/texinfo.tex: Update to version 2009-03-28.05. 2009-04-21 12:36:46 +00:00
winsup add release message for commit 4c9bb3e 2016-03-17 17:58:43 +01:00
.gitattributes Add .gitattributes 2015-03-09 20:53:11 +01:00
.gitignore Add *.swp (Vim swap files) to .gitignore 2015-03-17 12:03:30 +01:00
COPYING 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
COPYING.LIB 2005-07-16 Kelley Cook <kcook@gcc.gnu.org> 2005-07-16 02:41:34 +00:00
COPYING.LIBGLOSS Add Synopsys license for newlib and libgloss 2015-11-12 14:16:32 +01:00
COPYING.NEWLIB Add Synopsys license for newlib and libgloss 2015-11-12 14:16:32 +01:00
COPYING3 * COPYING3: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
COPYING3.LIB * COPYING3: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
ChangeLog Add Synopsys license for newlib and libgloss 2015-11-12 14:16:32 +01:00
MAINTAINERS MAINTAINERS: clarify policy with config/ (and other top level files) 2012-05-12 03:10:17 +00:00
Makefile.def 2013-08-12 Jan-Benedict Glaw <jbglaw@lug-owl.de> 2013-08-12 11:36:35 +00:00
Makefile.in 2013-08-12 Jan-Benedict Glaw <jbglaw@lug-owl.de> 2013-08-12 11:36:35 +00:00
Makefile.tpl * Makefile.tpl (BOOT_ADAFLAGS): Remove -gnata. 2013-01-11 11:48:54 +00:00
README 19990502 sourceware import 1999-05-03 07:29:06 +00:00
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:06 +00:00
compile Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
config-ml.in * config-ml.in: Don't handle arc-*-elf*. 2011-03-22 20:01:13 +00:00
config.guess config.{guess,sub}: sync with upstream 2015-09-22 09:25:18 -04:00
config.rpath Remove freebsd1 from libtool.m4 macros and config.rpath. 2011-02-13 21:00:08 +00:00
config.sub config.{guess,sub}: sync with upstream 2015-09-22 09:25:18 -04:00
configure Add support for ARC to libgloss 2015-11-12 14:11:47 +01:00
configure.ac Add support for ARC to libgloss 2015-11-12 14:11:47 +01:00
depcomp Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
djunpack.bat * djunpack.bat: Use ".." quoting in Sed command, for the sake of 2009-03-27 13:37:09 +00:00
install-sh Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
libtool.m4 * libtool.m4 (_LT_ENABLE_LOCK <ld -m flags>): Remove non-canonical 2013-09-20 09:51:24 +00:00
ltgcc.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltmain.sh PR target/59788 2014-02-05 13:17:47 +00:00
ltoptions.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
ltsugar.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltversion.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
lt~obsolete.m4 Sync Libtool from GCC. 2010-01-09 21:11:32 +00:00
makefile.vms 19990502 sourceware import 1999-05-03 07:29:06 +00:00
missing Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
mkdep * mkdep: New file. 1999-08-08 17:46:02 +00:00
mkinstalldirs Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
move-if-change Import move-if-change script from gnulib. 2011-02-12 15:47:02 +00:00
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release * src-release (do-proto-toplevel): Support subdir-path-prefixed 2013-10-15 20:45:52 +00:00
symlink-tree 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
ylwrap Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00

README

		   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.