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Zack Weinberg f2bea4da2e Installed-header hygiene (BZ#20366): conditionally defined structures.
Several network-related structures are defined conditionally under
__USE_MISC, but unconditionally used by other headers.  The path of
least resistance is usually to condition the uses on __USE_MISC as
well.

	* sysdeps/mach/hurd/net/if_ppp.h
	* sysdeps/unix/sysv/linux/net/if_ppp.h:
        Only define struct ifpppstatsreq and struct ifpppcstatsreq
        if __USE_MISC is defined, to ensure struct ifreq is declared.

	* inet/netinet/ether.h: Condition all function prototypes
        on __USE_MISC, to ensure struct ether_addr is declared.

sys/socket.h defines struct osockaddr only under __USE_MISC, whereas
protocols/talkd.h requires it unconditionally.  Here it doesn't make
sense to condition the entire body of protocols/talkd.h on __USE_MISC.
Rather than complicate sys/socket.h with a __need macro or duplicate
the definition, I am introducing a new concept: tiny headers named
bits/types/TYPE.h that define TYPE and nothing else.  This can, I hope,
ultimately replace *all* the __need macros.  The guard macro for such
headers will be __TYPE_defined, just in case application or third-party
library code is looking at them.

	* socket/bits/types/struct_osockaddr.h: New header.
	* include/bits/types/struct_osockaddr.h: New wrapper.
	* socket/Makefile: Install the new header.
	* socket/sys/socket.h,  inet/protocols/talkd.h:
	Refer to bits/types/struct_osockaddr.h for the definition of
	struct osockaddr.
2016-09-23 08:43:56 -04:00
argp Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
assert
benchtests Clear destination buffer updated by the previous run 2016-05-18 05:51:59 -07:00
bits Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
catgets
conform conform tests: call perl with '-I.' 2016-09-05 22:53:22 +02:00
crypt
csu Remove __libc_csu_irel declaration 2016-09-10 15:50:53 +05:30
ctype
debug Add tests for fortification of bcopy and bzero. 2016-08-19 09:04:35 -04:00
dirent
dlfcn tst-rec-dlopen: Fix build fail due to missing inclusion of string.h 2016-06-06 11:03:04 +02:00
elf [PR19826] fix non-LE TLS in static programs 2016-09-21 22:01:16 -03:00
gmon Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
gnulib
grp Don't install the internal header grp-merge.h 2016-07-18 09:33:21 -03:00
gshadow
hesiod hesiod: Avoid heap overflow in get_txt_records [BZ #20031] 2016-05-02 16:04:32 +02:00
hurd hurdmalloc: Run fork handler as late as possible [BZ #19431] 2016-09-22 01:45:48 +02:00
iconv Fix UTF-16 surrogate handling. [BZ #19727] 2016-05-25 17:18:06 +02:00
iconvdata Fix UTF-16 surrogate handling. [BZ #19727] 2016-05-25 17:18:06 +02:00
include Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
inet Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
intl hurd: fix pathconf visibility 2016-09-18 23:45:12 +02:00
io Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
libidn
libio Support __STDC_WANT_LIB_EXT2__ feature test macro. 2016-08-02 17:40:35 +00:00
locale S390: Fix relocation of _nl_current_LC_CATETORY_used in static build. [BZ #19860] 2016-06-28 12:28:53 +02:00
localedata localedata: lt_LT: use hyphens in d_fmt [BZ #20497] 2016-08-24 16:07:02 -04:00
login 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
mach Fix old-style function definition 2016-09-20 23:10:51 +02:00
malloc malloc: Manual part of conversion to __libc_lock 2016-09-21 16:28:08 +02:00
manual manual: Clarify NSS error reporting 2016-09-23 14:18:09 +02:00
math Add issubnormal. 2016-09-21 20:52:02 +00:00
mathvec
misc Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
nis Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
nptl [PR19826] fix non-LE TLS in static programs 2016-09-21 22:01:16 -03:00
nptl_db Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
nscd Fix incorrect double-checked locking related to _res_hconf.initialized. 2016-08-18 20:53:37 +02:00
nss Fix incorrect double-checked locking related to _res_hconf.initialized. 2016-08-18 20:53:37 +02:00
po Update PO files. 2016-08-04 11:41:27 -04:00
posix Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
pwd
resolv Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
resource
rt rt: Set shm_open as a non cancellation point (BZ #18243) 2016-09-15 11:15:14 -03:00
scripts sysd-rules: Cut down the number of rtld-% pattern rules 2016-09-20 10:41:05 +02:00
setjmp
shadow
signal
socket Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
soft-fp [soft-fp] Add support for various half-precision conversion routines. 2016-09-21 21:02:54 +00:00
stdio-common vfscanf: Avoid multiple reads of multi-byte character width 2016-09-02 15:59:34 +02:00
stdlib Add <stdint.h> integer width macros. 2016-09-21 17:06:36 +00:00
streams
string string: More tests for strcmp, strcasecmp, strncmp, strncasecmp 2016-08-26 14:28:46 +02:00
sunrpc Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
sysdeps Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
sysvipc Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
termios Declare tcgetsid for XPG4 (bug 20055). 2016-05-11 18:05:37 +00:00
time
timezone
wcsmbs Add tst-wcstod-round 2016-08-19 11:17:07 -05:00
wctype
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore
BUGS
CONFORMANCE
COPYING
COPYING.LIB
ChangeLog Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
ChangeLog.1
ChangeLog.2
ChangeLog.3
ChangeLog.4
ChangeLog.5
ChangeLog.6
ChangeLog.7
ChangeLog.8 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.9
ChangeLog.10
ChangeLog.11 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.12
ChangeLog.13
ChangeLog.14
ChangeLog.15
ChangeLog.16
ChangeLog.17
ChangeLog.old-ports
ChangeLog.old-ports-aarch64
ChangeLog.old-ports-aix
ChangeLog.old-ports-alpha
ChangeLog.old-ports-am33
ChangeLog.old-ports-arm
ChangeLog.old-ports-cris
ChangeLog.old-ports-hppa
ChangeLog.old-ports-ia64
ChangeLog.old-ports-linux-generic
ChangeLog.old-ports-m68k
ChangeLog.old-ports-microblaze
ChangeLog.old-ports-mips
ChangeLog.old-ports-powerpc
ChangeLog.old-ports-tile
INSTALL 2016-06-05 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-05 08:41:13 -07:00
LICENSES
Makeconfig Generate .op pattern rules for profiling builds only 2016-09-21 10:45:19 +02:00
Makefile Support __STDC_WANT_LIB_EXT2__ feature test macro. 2016-08-02 17:40:35 +00:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
NAMESPACE
NEWS Add issubnormal. 2016-09-21 20:52:02 +00:00
PROJECTS
README
Rules Revert "Add pretty printers for the NPTL lock types" 2016-07-11 20:32:12 +05:30
WUR-REPORT
abi-tags
aclocal.m4
config.h.in S390: Do not set FE_INEXACT with feraiseexcept (FE_OWERFLOW|FE_UNDERFLOW). 2016-08-31 14:54:55 +02:00
config.make.in Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
configure Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
configure.ac Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
cppflags-iterator.mk
extra-lib.mk
extra-modules.mk
gen-locales.mk
libc-abis
o-iterator.mk
shlib-versions
test-skeleton.c test-skeleton.c: Remove unintended #include <stdarg.h>. 2016-09-23 09:41:35 +02:00
version.h Open development for 2.25. 2016-08-01 23:00:21 -04:00

README

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.  The current
GNU/Hurd support requires out-of-tree patches that will eventually be
incorporated into an official GNU C Library release.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 or later on all architectures except
i[4567]86 and x86_64, where Linux kernel version 2.6.32 or later
suffices.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arm-*-linux-gnueabi
	hppa-*-linux-gnu	Not currently functional without patches.
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu
	tilegx-*-linux-gnu
	tilepro-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see http://www.gnu.org/software/libc/ for more
information.

See the file INSTALL to find out how to configure, build, and install
the GNU C Library.  You might also consider reading the WWW pages for
the C library at http://www.gnu.org/software/libc/.

The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
and contains some known errors and omissions; we regret that we do not
have the resources to work on the manual as much as we would like.  For
corrections to the manual, please file a bug in the `manual' component,
following the bug-reporting instructions below.  Please be sure to check
the manual in the current development sources to see if your problem has
already been corrected.

Please see http://www.gnu.org/software/libc/bugs.html for bug reporting
information.  We are now using the Bugzilla system to track all bug reports.
This web page gives detailed information on how to report bugs properly.

The GNU C Library is free software.  See the file COPYING.LIB for copying
conditions, and LICENSES for notices about a few contributions that require
these additional notices to be distributed.  License copyright years may be
listed using range notation, e.g., 1996-2015, indicating that every year in
the range, inclusive, is a copyrightable year that would otherwise be listed
individually.