-1998-10-28 H.J. Lu <hjl@gnu.org>
-
- * posix/getopt.h: Add "__" to arguments in prototypes.
-
-1998-11-05 H.J. Lu <hjl@gnu.org>
-
- * libio/iofgets.c (_IO_fgets): Don't report error
- if something was read in and errno is set to
- EAGAIN.
- * libio/iofgets_u.c (fgets_unlocked): Likewise.
-
-1998-11-05 Philip Blundell <philb@gnu.org>
-
- * sysdeps/unix/sysv/linux/net/if_packet.h: Don't include kernel
- header; it defines too much. Provide a local definition of struct
- sockaddr_pkt and a comment advising against its use.
-
-1998-11-06 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
-
- * extra-lib.mk: Avoid empty include list.
-
-1998-11-04 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
-
- * extra-lib.mk: Add support for $(lib)-shared-only-routines.
-
- * elf/Makefile (libdl-routines): Add dlopenold only if doing
- versioning.
- (libdl-shared-only-routines): New variable.
-
-1998-11-06 Paul Eggert <eggert@twinsun.com>
-
- Don't invoke localtime_r or gmtime_r unless it's the GNU C
- library's localtime_r and gmtime_r; there are too many buggy
- implementations of localtime_r and gmtime_r out there, and
- it's not worth keeping track of all the different bugs.
-
- * time/mktime.c (__EXTENSIONS__): Remove.
- (<unistd.h>): No need to include.
+1998-11-09 18:16 Ulrich Drepper <drepper@cygnus.com>
+
+ * math/complex.h: Include bits/mathdef.h to get __NO_LONG_DOUBLE_MATH
+ is needed.
+ Don't define long double functions if __NO_LONG_DOUBLE_MATH is defined.
+ Don't define `complex' but instead `_Complex'. The later is the
+ reserved keyword.
+ * math/bits/cmathcalls.c: Define _Mdouble_complex_ using _Complex,
+ not complex.
+
+1998-11-07 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * manual/libc.texinfo: Remove colon from category name.
+ * manual/Makefile (dir-add.info): Likewise.
+
+1998-11-07 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * configure.in: Avoid autoconf bug.
+
+1998-10-28 H.J. Lu <hjl@gnu.org>
+
+ * posix/getopt.h: Add "__" to arguments in prototypes.
+
+1998-11-05 H.J. Lu <hjl@gnu.org>
+
+ * libio/iofgets.c (_IO_fgets): Don't report error
+ if something was read in and errno is set to
+ EAGAIN.
+ * libio/iofgets_u.c (fgets_unlocked): Likewise.
+
+1998-11-05 Philip Blundell <philb@gnu.org>
+
+ * sysdeps/unix/sysv/linux/net/if_packet.h: Don't include kernel
+ header; it defines too much. Provide a local definition of struct
+ sockaddr_pkt and a comment advising against its use.
+
+1998-11-06 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * extra-lib.mk: Avoid empty include list.
+
+1998-11-04 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * extra-lib.mk: Add support for $(lib)-shared-only-routines.
+
+ * elf/Makefile (libdl-routines): Add dlopenold only if doing
+ versioning.
+ (libdl-shared-only-routines): New variable.
+
+1998-11-06 Paul Eggert <eggert@twinsun.com>
+
+ Don't invoke localtime_r or gmtime_r unless it's the GNU C
+ library's localtime_r and gmtime_r; there are too many buggy
+ implementations of localtime_r and gmtime_r out there, and
+ it's not worth keeping track of all the different bugs.
+
+ * time/mktime.c (__EXTENSIONS__): Remove.
+ (<unistd.h>): No need to include.
* time/strftime.c: Likewise.
* time/mktime.c (_POSIX_THREAD_SAFE_FUNCTIONS, HAVE_LOCALTIME_R):
- Remove.
- (my_mktime_localtime_r): Renamed from localtime_r; all uses changed.
- Base it on localtime unless _LIBC.
-
- * time/strftime.c (my_strftime_gmtime_r): Renamed from gmtime_r;
- all uses changed.
- (my_strftime_localtime_r): Renamed from localtime_r; all uses changed.
- Base them on localtime/gmtime if not _LIBC.
+ Remove.
+ (my_mktime_localtime_r): Renamed from localtime_r; all uses changed.
+ Base it on localtime unless _LIBC.
+
+ * time/strftime.c (my_strftime_gmtime_r): Renamed from gmtime_r;
+ all uses changed.
+ (my_strftime_localtime_r): Renamed from localtime_r; all uses changed.
+ Base them on localtime/gmtime if not _LIBC.
1998-11-07 Ulrich Drepper <drepper@cygnus.com>
and describes problems you may experience with compilation and
installation. It is updated more frequently than this manual.
- Two components of GNU Libc are distributed as "add-on" bundles
-separate from the main distribution. Unless you are doing an unusual
-installation, you should get them both. Support for the `crypt'
-function is distributed separately because of US export restrictions.
-If you are outside the US or Canada, you must get `crypt' support from
-a site outside the US, such as `ftp.ifi.uio.no'. (Most non-US mirrors
-of `ftp.gnu.org' will have it too.) The file you need is
-`glibc-crypt-VERSION.tar.gz'. Support for POSIX threads is maintained
-by someone else, so it's in a separate package. At the moment it is
-only available for Linux systems; this will change in the future. Get
-it from the same place you got the main bundle; the file is
-`glibc-linuxthreads-VERSION.tar.gz'. Both add-on bundles should be
-unpacked into the top level of the libc source tree.
+ Features can be added to GNU Libc via "add-on" bundles. These are
+separate tarfiles which you unpack into the top level of the source
+tree. Then you give `configure' the `--enable-add-ons' option to
+activate them, and they will be compiled into the library. As of the
+2.1 release, two important components of glibc are distributed as
+"official" add-ons. Unless you are doing an unusual installation, you
+should get them both.
+
+ Support for POSIX threads is maintained by someone else, so it's in a
+separate package. It is only available for Linux systems, but this will
+change in the future. Get it from the same place you got the main
+bundle; the file is `glibc-linuxthreads-VERSION.tar.gz'. Support for
+the `crypt' function is distributed separately because of United States
+export restrictions. If you are outside the US or Canada, you must get
+`crypt' support from a site outside the US, such as `ftp.ifi.uio.no'.
+(Most non-US mirrors of `ftp.gnu.org' will have it too.) The file you
+need is `glibc-crypt-VERSION.tar.gz'.
You will need recent versions of several GNU tools: definitely GCC
and GNU Make, and possibly others. *Note Tools for Compilation::,
$ ../glibc-2.1.0/configure ARGS...
`configure' takes many options, but you can get away with knowing only
-two: `--enable-add-ons' and `--prefix'. The `--enable-add-ons' option
-tells configure to use all the add-on bundles it finds in the source
-directory. Since important functionality is provided in add-ons, you
-should always give this option. The `--prefix' option tells configure
-where you want glibc installed. This defaults to `/usr/local'. If you
-are installing glibc as your primary C library, give the option
-`--prefix=/usr', which will put components in `/usr' or `/' as
-appropriate.
+two: `--prefix' and `--enable-add-ons'. The `--prefix' option tells
+configure where you want glibc installed. This defaults to
+`/usr/local'. The `--enable-add-ons' option tells configure to use all
+the add-on bundles it finds in the source directory. Since important
+functionality is provided in add-ons, you should always give this
+option.
It may also be useful to set the CC and CFLAGS variables in the
environment when running `configure'. CC selects the C compiler that
too, and you may have to override CONFIGURE's selection of the
compiler and/or binutils.
- If you give just one of these, `configure' will get confused. If
- `configure' doesn't correctly guess your system type for a native
- build, report that as a bug.
+ If you give just `--host', configure will prepare for a native
+ compile but use what you say instead of guessing what your system
+ is. This is most useful to change the CPU submodel. For example,
+ if configure guesses your machine as `i586-pc-linux-gnu' but you
+ want to compile a library optimized for 386es, give
+ `--host=i386-pc-linux-gnu' or just `--host=i386-linux'. (A
+ library compiled for a Pentium (`i586') will still work on a 386,
+ but it may be slower.)
+
+ If you give just `--build', configure will get confused.
To build the library and related programs, type `make'. This will
produce a lot of output, some of which may look like errors from `make'
compile and test glibc as an unprivileged user.
To format the `GNU C Library Reference Manual' for printing, type
-`make dvi'. You need a working TeX installation to do this.
+`make dvi'. You need a working TeX installation to do this. The
+distribution already includes the on-line formatted version of the
+manual, as Info files. You can regenerate those with `make info', but
+it shouldn't be necessary.
+
+Installing the C Library
+========================
To install the library and its header files, and the Info files of
the manual, type `make install'. This will build things if necessary,
-before installing them. If you want to install the files in a different
-place than the one specified at configuration time you can specify a
-value for the Makefile variable `install_root' on the command line.
-This is useful to create chroot'ed environment or to prepare binary
-releases.
+before installing them. Don't rely on that; compile everything first.
+If you are installing glibc as your primary C library, we recommend you
+shut the system down to single-user mode first, and reboot afterward.
+This minimizes the risk of breaking things when the library changes out
+from underneath.
+
+ If you are upgrading from a previous installation of glibc 2.0 or
+2.1, `make install' will do the entire job. If you're upgrading from
+Linux libc5 or some other C library, you need to rename the old
+`/usr/include' directory out of the way first, or you will end up with
+a mixture of header files from both libraries, and you won't be able to
+compile anything. You may also need to reconfigure GCC to work with
+the new library. The easiest way to do that is to figure out the
+compiler switches to make it work again
+(`-Wl,-dynamic-linker=/lib/ld-linux.so.2' should work on Linux systems)
+and use them to recompile gcc. You can also edit the specs file
+(`/usr/lib/gcc-lib/TARGET/VERSION/specs'), but that is a bit of a black
+art.
+
+ You can install glibc somewhere other than where you configured it
+to go by setting the `install_root' variable on the command line for
+`make install'. The value of this variable is prepended to all the
+paths for installation. This is useful when setting up a chroot
+environment or preparing a binary distribution.
+
+ Glibc 2.1 includes two daemons, `nscd' and `utmpd', which you may or
+may not want to run. `nscd' caches name service lookups; it can
+dramatically improve performance with NIS+, and may help with DNS as
+well. `utmpd' allows programs that use the old format for the `utmp'
+file to coexist with new programs. For more information see the files
+`nscd/README' and `login/README.utmpd'.
+
+ One auxiliary program, `/usr/libexec/pt_chown', is installed setuid
+`root'. This program is invoked by the `grantpt' function; it sets the
+permissions on a pseudoterminal so it can be used by the calling
+process. This means programs like `xterm' and `screen' do not have to
+be setuid to get a pty. (There may be other reasons why they need
+privileges.) If you are using a 2.1 Linux kernel with the `devptsfs'
+or `devfs' filesystems providing pty slaves, you don't need this
+program; otherwise you do. The source for `pt_chown' is in
+`login/programs/pt_chown.c'.
Recommended Tools for Compilation
=================================
family. We recommend EGCS 1.0.3 or higher. GCC 2.8.1 and older
versions of EGCS may have problems, particularly on non-Intel
architectures. GCC 2.7.x has catastrophic bugs and cannot be used
- at all.
+ at all. (You can use GCC 2.7.x to compile programs that use GNU
+ libc, but you may have problems, particularly with the math
+ functions.)
* GNU `binutils' 2.8.1.0.23, 2.9.1, or 2.9.0.15
To correctly translate and install the Texinfo documentation you
need this version of the `texinfo' package. Earlier versions do
not understand all the tags used in the document, and the
- installation mechanisms for the info files is not present or works
+ installation mechanism for the info files is not present or works
differently.
- On some Debian Linux based systems the `install-info' program
- supplied with the system works differently from the one we expect.
- You must therefore run `make install' like this:
-
- make INSTALL_INFO=/path/to/GNU/install-info install
-
* GNU `awk' 3.0, or some other POSIX awk
Awk is used in several places to generate files. The scripts
- should work with any POSIX-compliant awk implementation; GNU awk
+ should work with any POSIX-compliant awk implementation; `gawk'
3.0 and `mawk' 1.3 are known to work.
* Perl 5
Each case of `iX86' can be `i386', `i486', `i586', or `i686'. All
of those configurations produce a library that can run on any of these
processors. The library will be optimized for the specified processor,
-but will not use instructions not available on all of them.
-
- While no other configurations are supported, there are handy aliases
-for these few. (These aliases work in other GNU software as well.)
-
- decstation
- hp320-bsd4.3 hp300bsd
- i486-gnu
- i586-linux
- i386-sco
- i386-sco3.2v4
- i386-sequent-dynix
- i386-svr4
- news
- sun3-sunos4.N sun3
- sun4-solaris2.N sun4-sunos5.N
- sun4-sunos4.N sun4
+but will not use instructions not available on all of them. If you
+want the library to use instructions only available on newer
+processors, give GCC the appropriate `-m' switches via CFLAGS.
+
+Specific advice for Linux systems
+=================================
+
+ If you are installing GNU libc on a Linux system, you need to have
+the header files from a development kernel around for reference. You
+do not need to use the development kernel, just have its headers where
+glibc can get at them. The easiest way to do this is to unpack a
+development kernel in a directory such as `/usr/src/linux-dev'. In that
+directory, run `make config' and accept all the defaults. Then
+configure glibc with the option
+`--with-headers=/usr/src/linux-dev/include'. Use the latest
+development kernel you can get your hands on.
+
+ An alternate tactic is to unpack the development kernel and run
+`make config' as above. Then rename or delete `/usr/include', create a
+new `/usr/include', and make the usual symbolic links of
+`/usr/include/linux' and `/usr/include/asm' into the development kernel
+sources. You can then configure glibc with no special options. This
+tactic is recommended if you are upgrading from libc5, since you need
+to get rid of the old header files anyway.
+
+ Note that `/usr/include/net' and `/usr/include/scsi' should *not* be
+symlinks into the kernel sources. GNU libc provides its own versions
+of these files.
+
+ Linux expects some components of the libc installation to be in
+`/lib' and some in `/usr/lib'. This is handled automatically if you
+configure glibc with `--prefix=/usr'. If you set some other prefix or
+allow it to default to `/usr/local', then all the components are
+installed there.
+
+ If you are upgrading from libc5, you need to recompile every shared
+library on your system against the new library for the sake of new code,
+but keep the old libraries around for old binaries to use. This is
+complicated and difficult. Consult the Glibc2 HOWTO at
+`http://www.imaxx.net/~thrytis/glibc' for details.
+
+ You cannot use `nscd' with 2.0 kernels, due to bugs in the
+kernel-side thread support. `nscd' happens to hit these bugs
+particularly hard, but you might have problems with any threaded
+program.
Reporting Bugs
==============
good way to do this is to see if the GNU C library behaves the same way
some other C library does. If so, probably you are wrong and the
libraries are right (but not necessarily). If not, one of the libraries
-is probably wrong.
+is probably wrong. It might not be the GNU library. Many historical
+Unix C libraries permit things that we don't, such as closing a file
+twice.
+
+ If you think you have found some way in which the GNU C library does
+not conform to the ISO and POSIX standards (*note Standards and
+Portability::.), that is definitely a bug. Report it!
Once you're sure you've found a bug, try to narrow it down to the
smallest test case that reproduces the problem. In the case of a C
call, if possible. This should not be too difficult.
The final step when you have a simple test case is to report the bug.
-When reporting a bug, send your test case, the results you got, the
-results you expected, what you think the problem might be (if you've
-thought of anything), your system type, and the version of the GNU C
-library which you are using. Also include the files `config.status'
-and `config.make' which are created by running `configure'; they will
-be in whatever directory was current when you ran `configure'.
-
- If you think you have found some way in which the GNU C library does
-not conform to the ISO and POSIX standards (*note Standards and
-Portability::.), that is definitely a bug. Report it!
-
- Send bug reports to the Internet address <bug-glibc@gnu.org> using
-the `glibcbug' script which is installed by the GNU C library. If you
-have other problems with installation or use, please report those as
-well.
+Do this using the `glibcbug' script. It is installed with libc, or if
+you haven't installed it, will be in your build directory. Send your
+test case, the results you got, the results you expected, and what you
+think the problem might be (if you've thought of anything). `glibcbug'
+will insert the configuration information we need to see, and ship the
+report off to <bug-glibc@gnu.org>. Don't send a message there
+directly; it is fed to a program that expects mail to be formatted in a
+particular way. Use the script.
If you are not sure how a function should behave, and this manual
doesn't tell you, that's a bug in the manual. Report that too! If the
# Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.12
+# Generated automatically using autoconf version 2.12.2
# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
# Initialize some other variables.
subdirs=
MFLAGS= MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12
verbose=yes ;;
-version | --version | --versio | --versi | --vers)
- echo "configure generated by autoconf version 2.12"
+ echo "configure generated by autoconf version 2.12.2"
exit 0 ;;
-with-* | --with-*)
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
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-ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross
+ac_exeext=
+ac_objext=o
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
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# Make sure we can run config.sub.
-if $ac_config_sub sun4 >/dev/null 2>&1; then :
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echo $ac_n "checking host system type""... $ac_c" 1>&6
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host_alias=$host
case "$host_alias" in
NONE)
case $nonopt in
NONE)
- if host_alias=`$ac_config_guess`; then :
+ if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
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fi ;;
*) host_alias=$nonopt ;;
esac ;;
esac
-host=`$ac_config_sub $host_alias`
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echo $ac_n "checking sysdep dirs""... $ac_c" 1>&6
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+echo "configure:936: checking sysdep dirs" >&5
# Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
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*)
# OSF1 and SCO ODT 3.0 have their own names for install.
- for ac_prog in ginstall installbsd scoinst install; do
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
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echo $ac_n "checking build system type""... $ac_c" 1>&6
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build_alias=$build
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esac
-build=`$ac_config_sub $build_alias`
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ac_prog_version=`$CC -v 2>&1 | sed -n 's/^.*version \([egcygnustp-]*[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1292: checking for $ac_word" >&5
+echo "configure:1297: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MAKE'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$MAKE"; then
ac_cv_prog_MAKE="$MAKE" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
else
# Found it, now check the version.
echo $ac_n "checking version of $MAKE""... $ac_c" 1>&6
-echo "configure:1325: checking version of $MAKE" >&5
+echo "configure:1330: checking version of $MAKE" >&5
ac_prog_version=`$MAKE --version 2>&1 | sed -n 's/^.*version \([0-9][0-9.]*\), by.*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1346: checking for $ac_word" >&5
+echo "configure:1351: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MSGFMT'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$MSGFMT"; then
ac_cv_prog_MSGFMT="$MSGFMT" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
else
# Found it, now check the version.
echo $ac_n "checking version of $MSGFMT""... $ac_c" 1>&6
-echo "configure:1379: checking version of $MSGFMT" >&5
+echo "configure:1384: checking version of $MSGFMT" >&5
ac_prog_version=`$MSGFMT --version 2>&1 | sed -n 's/^.*GNU gettext.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1399: checking for $ac_word" >&5
+echo "configure:1404: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MAKEINFO'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$MAKEINFO"; then
ac_cv_prog_MAKEINFO="$MAKEINFO" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
else
# Found it, now check the version.
echo $ac_n "checking version of $MAKEINFO""... $ac_c" 1>&6
-echo "configure:1432: checking version of $MAKEINFO" >&5
+echo "configure:1437: checking version of $MAKEINFO" >&5
ac_prog_version=`$MAKEINFO --version 2>&1 | sed -n 's/^.*GNU texinfo \([0-9][0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1461: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1466: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_works'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross
cat > conftest.$ac_ext <<EOF
-#line 1474 "configure"
+#line 1479 "configure"
#include "confdefs.h"
main(){return(0);}
EOF
-if { (eval echo configure:1478: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1483: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
ac_cv_prog_cc_works=yes
# If we can't run a trivial program, we are probably using a cross compiler.
if (./conftest; exit) 2>/dev/null; then
cross_linkable=yes
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1503: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1508: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_cross'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cross_compiling=$ac_cv_prog_cc_cross
echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1515: checking whether we are using GNU C" >&5
+echo "configure:1520: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
yes;
#endif
EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1524: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1529: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gcc=yes
else
ac_cv_prog_gcc=no
fi
echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:1537: checking build system type" >&5
+echo "configure:1542: checking build system type" >&5
build_alias=$build
case "$build_alias" in
esac ;;
esac
-build=`$ac_config_sub $build_alias`
+build=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $build_alias`
build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1560: checking for $ac_word" >&5
+echo "configure:1565: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_BUILD_CC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$BUILD_CC"; then
ac_cv_prog_BUILD_CC="$BUILD_CC" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
fi
echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1591: checking how to run the C preprocessor" >&5
+echo "configure:1596: checking how to run the C preprocessor" >&5
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
CPP=
# On the NeXT, cc -E runs the code through the compiler's parser,
# not just through cpp.
cat > conftest.$ac_ext <<EOF
-#line 1606 "configure"
+#line 1611 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1612: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out`
+{ (eval echo configure:1617: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
:
else
rm -rf conftest*
CPP="${CC-cc} -E -traditional-cpp"
cat > conftest.$ac_ext <<EOF
-#line 1623 "configure"
+#line 1628 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1629: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out`
+{ (eval echo configure:1634: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+ :
+else
+ echo "$ac_err" >&5
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ CPP="${CC-cc} -nologo -E"
+ cat > conftest.$ac_ext <<EOF
+#line 1645 "configure"
+#include "confdefs.h"
+#include <assert.h>
+Syntax Error
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1651: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
:
else
fi
rm -f conftest*
fi
+rm -f conftest*
+fi
rm -f conftest*
ac_cv_prog_CPP="$CPP"
fi
# Determine whether we are using GNU binutils.
echo $ac_n "checking whether $AS is GNU as""... $ac_c" 1>&6
-echo "configure:1662: checking whether $AS is GNU as" >&5
+echo "configure:1686: checking whether $AS is GNU as" >&5
if eval "test \"`echo '$''{'libc_cv_prog_as_gnu'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
gnu_as=$libc_cv_prog_as_gnu
echo $ac_n "checking whether $LD is GNU ld""... $ac_c" 1>&6
-echo "configure:1681: checking whether $LD is GNU ld" >&5
+echo "configure:1705: checking whether $LD is GNU ld" >&5
if eval "test \"`echo '$''{'libc_cv_prog_ld_gnu'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
set dummy ${ac_tool_prefix}ar; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1701: checking for $ac_word" >&5
+echo "configure:1725: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$AR"; then
ac_cv_prog_AR="$AR" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
set dummy ${ac_tool_prefix}ranlib; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1732: checking for $ac_word" >&5
+echo "configure:1756: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$RANLIB"; then
ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1763: checking for $ac_word" >&5
+echo "configure:1787: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$RANLIB"; then
ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "${ac_tool_prefix}mig", so it can be a program name with args.
set dummy ${ac_tool_prefix}mig; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1797: checking for $ac_word" >&5
+echo "configure:1821: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MIG'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$MIG"; then
ac_cv_prog_MIG="$MIG" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# check if ranlib is necessary
echo $ac_n "checking whether ranlib is necessary""... $ac_c" 1>&6
-echo "configure:1837: checking whether ranlib is necessary" >&5
+echo "configure:1861: checking whether ranlib is necessary" >&5
if eval "test \"`echo '$''{'libc_cv_ranlib_necessary'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
echo $ac_n "checking LD_LIBRARY_PATH variable""... $ac_c" 1>&6
-echo "configure:1871: checking LD_LIBRARY_PATH variable" >&5
+echo "configure:1895: checking LD_LIBRARY_PATH variable" >&5
case ${LD_LIBRARY_PATH} in
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
ld_library_path_setting="contains current directory"
# Extract the first word of "bash", so it can be a program name with args.
set dummy bash; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1891: checking for $ac_word" >&5
+echo "configure:1915: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_BASH'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
/*)
ac_cv_path_BASH="$BASH" # Let the user override the test with a path.
;;
+ ?:/*)
+ ac_cv_path_BASH="$BASH" # Let the user override the test with a dos path.
+ ;;
*)
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "ksh", so it can be a program name with args.
set dummy ksh; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1933: checking for $ac_word" >&5
+echo "configure:1960: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_KSH'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
/*)
ac_cv_path_KSH="$KSH" # Let the user override the test with a path.
;;
+ ?:/*)
+ ac_cv_path_KSH="$KSH" # Let the user override the test with a dos path.
+ ;;
*)
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1979: checking for $ac_word" >&5
+echo "configure:2009: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test -n "$AWK"; then
ac_cv_prog_AWK="$AWK" # Let the user override the test.
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
# Extract the first word of "perl", so it can be a program name with args.
set dummy perl; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2010: checking for $ac_word" >&5
+echo "configure:2040: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
/*)
ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
;;
+ ?:/*)
+ ac_cv_path_PERL="$PERL" # Let the user override the test with a dos path.
+ ;;
*)
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
fi
+install_info_path=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin
# Extract the first word of "install-info", so it can be a program name with args.
set dummy install-info; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2043: checking for $ac_word" >&5
+echo "configure:2077: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_INSTALL_INFO'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
/*)
ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a path.
;;
+ ?:/*)
+ ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a dos path.
+ ;;
*)
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
- for ac_dir in /usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin$ac_dummy; do
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
+ for ac_dir in $install_info_path$ac_dummy; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_path_INSTALL_INFO="$ac_dir/$ac_word"
if test "$INSTALL_INFO" != "no"; then
echo $ac_n "checking for old Debian install-info""... $ac_c" 1>&6
-echo "configure:2075: checking for old Debian install-info" >&5
+echo "configure:2112: checking for old Debian install-info" >&5
if eval "test \"`echo '$''{'libc_cv_old_debian_install_info'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
echo $ac_n "checking for signed size_t type""... $ac_c" 1>&6
-echo "configure:2108: checking for signed size_t type" >&5
+echo "configure:2145: checking for signed size_t type" >&5
if eval "test \"`echo '$''{'libc_cv_signed_size_t'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking for libc-friendly stddef.h""... $ac_c" 1>&6
-echo "configure:2132: checking for libc-friendly stddef.h" >&5
+echo "configure:2169: checking for libc-friendly stddef.h" >&5
if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2137 "configure"
+#line 2174 "configure"
#include "confdefs.h"
#define __need_size_t
#define __need_wchar_t
if (&size == NULL || &wchar == NULL) abort ();
; return 0; }
EOF
-if { (eval echo configure:2152: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2189: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_friendly_stddef=yes
else
fi
echo $ac_n "checking whether we need to use -P to assemble .S files""... $ac_c" 1>&6
-echo "configure:2171: checking whether we need to use -P to assemble .S files" >&5
+echo "configure:2208: checking whether we need to use -P to assemble .S files" >&5
if eval "test \"`echo '$''{'libc_cv_need_minus_P'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking for assembler global-symbol directive""... $ac_c" 1>&6
-echo "configure:2194: checking for assembler global-symbol directive" >&5
+echo "configure:2231: checking for assembler global-symbol directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_global_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking for .set assembler directive""... $ac_c" 1>&6
-echo "configure:2224: checking for .set assembler directive" >&5
+echo "configure:2261: checking for .set assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_set_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking for .symver assembler directive""... $ac_c" 1>&6
-echo "configure:2258: checking for .symver assembler directive" >&5
+echo "configure:2295: checking for .symver assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_symver_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
echo "$ac_t""$libc_cv_asm_symver_directive" 1>&6
echo $ac_n "checking for ld --version-script""... $ac_c" 1>&6
-echo "configure:2277: checking for ld --version-script" >&5
+echo "configure:2314: checking for ld --version-script" >&5
if eval "test \"`echo '$''{'libc_cv_ld_version_script_option'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if { ac_try='${CC-cc} $CFLAGS -shared -o conftest.so conftest.o
-nostartfiles -nostdlib
-Wl,--version-script,conftest.map
- 1>&5'; { (eval echo configure:2300: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
+ 1>&5'; { (eval echo configure:2337: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_ld_version_script_option=yes
else
fi
if test $elf = yes; then
echo $ac_n "checking for .previous assembler directive""... $ac_c" 1>&6
-echo "configure:2338: checking for .previous assembler directive" >&5
+echo "configure:2375: checking for .previous assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_previous_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
.section foo_section
.previous
EOF
- if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2346: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2383: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_previous_directive=yes
else
libc_cv_asm_previous_directive=no
else
echo $ac_n "checking for .popsection assembler directive""... $ac_c" 1>&6
-echo "configure:2362: checking for .popsection assembler directive" >&5
+echo "configure:2399: checking for .popsection assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_popsection_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
.pushsection foo_section
.popsection
EOF
- if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2370: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2407: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_popsection_directive=yes
else
libc_cv_asm_popsection_directive=no
if test $elf != yes; then
echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&6
-echo "configure:2390: checking for .init and .fini sections" >&5
+echo "configure:2427: checking for .init and .fini sections" >&5
if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2395 "configure"
+#line 2432 "configure"
#include "confdefs.h"
int main() {
asm (".text");
; return 0; }
EOF
-if { (eval echo configure:2404: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2441: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_have_initfini=yes
else
else
if test $ac_cv_prog_cc_works = yes; then
echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:2432: checking for _ prefix on C symbol names" >&5
+echo "configure:2469: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2437 "configure"
+#line 2474 "configure"
#include "confdefs.h"
asm ("_glibc_foobar:");
int main() {
glibc_foobar ();
; return 0; }
EOF
-if { (eval echo configure:2444: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2481: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
libc_cv_asm_underscores=yes
else
echo "$ac_t""$libc_cv_asm_underscores" 1>&6
else
echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:2459: checking for _ prefix on C symbol names" >&5
+echo "configure:2496: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2464 "configure"
+#line 2501 "configure"
#include "confdefs.h"
void underscore_test(void) {
return; }
EOF
-if { (eval echo configure:2469: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2506: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if grep _underscore_test conftest* >/dev/null; then
rm -f conftest*
libc_cv_asm_underscores=yes
fi
echo $ac_n "checking for assembler .weak directive""... $ac_c" 1>&6
-echo "configure:2501: checking for assembler .weak directive" >&5
+echo "configure:2538: checking for assembler .weak directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weak_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
if test $libc_cv_asm_weak_directive = no; then
echo $ac_n "checking for assembler .weakext directive""... $ac_c" 1>&6
-echo "configure:2524: checking for assembler .weakext directive" >&5
+echo "configure:2561: checking for assembler .weakext directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weakext_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking for ld --no-whole-archive""... $ac_c" 1>&6
-echo "configure:2562: checking for ld --no-whole-archive" >&5
+echo "configure:2599: checking for ld --no-whole-archive" >&5
if eval "test \"`echo '$''{'libc_cv_ld_no_whole_archive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -Wl,--no-whole-archive
- -o conftest conftest.c 1>&5'; { (eval echo configure:2573: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c 1>&5'; { (eval echo configure:2610: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_ld_no_whole_archive=yes
else
libc_cv_ld_no_whole_archive=no
fi
echo $ac_n "checking for gcc -fexceptions""... $ac_c" 1>&6
-echo "configure:2587: checking for gcc -fexceptions" >&5
+echo "configure:2624: checking for gcc -fexceptions" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_exceptions'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -fexceptions
- -o conftest conftest.c 1>&5'; { (eval echo configure:2598: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c 1>&5'; { (eval echo configure:2635: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_exceptions=yes
else
libc_cv_gcc_exceptions=no
if test "$base_machine" = alpha ; then
echo $ac_n "checking for function ..ng prefix""... $ac_c" 1>&6
-echo "configure:2613: checking for function ..ng prefix" >&5
+echo "configure:2650: checking for function ..ng prefix" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_alpha_ng_prefix'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<\EOF
foo () { }
EOF
-if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:2620: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
+if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:2657: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_gcc_alpha_ng_prefix=yes
else
# Check for a bug present in at least versions 2.8.x of GCC
# and versions 1.0.x of EGCS.
echo $ac_n "checking whether clobbering cr0 causes problems""... $ac_c" 1>&6
-echo "configure:2647: checking whether clobbering cr0 causes problems" >&5
+echo "configure:2684: checking whether clobbering cr0 causes problems" >&5
if eval "test \"`echo '$''{'libc_cv_c_asmcr0_bug'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2652 "configure"
+#line 2689 "configure"
#include "confdefs.h"
int tester(int x) { asm ("" : : : "cc"); return x & 123; }
int main() {
; return 0; }
EOF
-if { (eval echo configure:2659: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2696: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_c_asmcr0_bug='no'
else
fi
echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6
-echo "configure:2681: checking for DWARF2 unwind info support" >&5
+echo "configure:2718: checking for DWARF2 unwind info support" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
-#line 2686 "configure"
+#line 2723 "configure"
static char __EH_FRAME_BEGIN__;
_start ()
{
EOF
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
-nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2713: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2750: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_dwarf2_unwind_info=static
else
libc_cv_gcc_dwarf2_unwind_info=no
if test $libc_cv_gcc_dwarf2_unwind_info = no; then
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame
-nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2721: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2758: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_dwarf2_unwind_info=yes
else
libc_cv_gcc_dwarf2_unwind_info=no
esac
echo $ac_n "checking for __builtin_expect""... $ac_c" 1>&6
-echo "configure:2751: checking for __builtin_expect" >&5
+echo "configure:2788: checking for __builtin_expect" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_builtin_expect'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
-#line 2756 "configure"
+#line 2793 "configure"
int foo (int a)
{
a = __builtin_expect (a, 10);
}
EOF
if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2764: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2801: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_builtin_expect=yes
else
libc_cv_gcc_builtin_expect=no
fi
echo $ac_n "checking OS release for uname""... $ac_c" 1>&6
-echo "configure:2825: checking OS release for uname" >&5
+echo "configure:2862: checking OS release for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
uname_release="$libc_cv_uname_release"
echo $ac_n "checking OS version for uname""... $ac_c" 1>&6
-echo "configure:2847: checking OS version for uname" >&5
+echo "configure:2884: checking OS version for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking stdio selection""... $ac_c" 1>&6
-echo "configure:2869: checking stdio selection" >&5
+echo "configure:2906: checking stdio selection" >&5
case $stdio in
libio) cat >> confdefs.h <<\EOF
# Test for old glibc 2.0.x headers so that they can be removed properly
# Search only in includedir.
echo $ac_n "checking for old glibc 2.0.x headers""... $ac_c" 1>&6
-echo "configure:2883: checking for old glibc 2.0.x headers" >&5
+echo "configure:2920: checking for old glibc 2.0.x headers" >&5
if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
then
old_glibc_headers=yes
fi
echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6
-echo "configure:2937: checking whether -fPIC is default" >&5
+echo "configure:2974: checking whether -fPIC is default" >&5
if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(set) 2>&1 |
- case `(ac_space=' '; set) 2>&1` in
+ case `(ac_space=' '; set) 2>&1 | grep ac_space` in
*ac_space=\ *)
# `set' does not quote correctly, so add quotes (double-quote substitution
# turns \\\\ into \\, and sed turns \\ into \).
echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
-version | --version | --versio | --versi | --vers | --ver | --ve | --v)
- echo "$CONFIG_STATUS generated by autoconf version 2.12"
+ echo "$CONFIG_STATUS generated by autoconf version 2.12.2"
exit 0 ;;
-help | --help | --hel | --he | --h)
echo "\$ac_cs_usage"; exit 0 ;;
s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
+s%@SHELL@%$SHELL%g
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
AC_PROG_AWK
AC_PATH_PROG(PERL, perl, no)
AC_SUBST(PERL)
-AC_PATH_PROG(INSTALL_INFO, install-info, no, dnl
-/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin)
+dnl This works around a bug in autoconf.
+install_info_path=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin
+AC_PATH_PROG(INSTALL_INFO, install-info, no, $install_info_path)
AC_SUBST(INSTALL_INFO)
if test "$INSTALL_INFO" != "no"; then
AC_CACHE_CHECK(for old Debian install-info, libc_cv_old_debian_install_info,
# access to the documentation of the function, variables, and other
# definitions.
dir-add.info: xtract-typefun.awk $(texis)
- (echo "INFO-DIR-SECTION GNU C library functions:"; \
+ (echo "INFO-DIR-SECTION GNU C library functions"; \
echo "START-INFO-DIR-ENTRY"; \
$(AWK) -f $^ | sort; \
echo "END-INFO-DIR-ENTRY") > $@.new
and describes problems you may experience with compilation and
installation. It is updated more frequently than this manual.
-Two components of GNU Libc are distributed as @dfn{add-on} bundles
-separate from the main distribution. Unless you are doing an unusual
-installation, you should get them both. Support for the @code{crypt}
-function is distributed separately because of US export restrictions.
-If you are outside the US or Canada, you must get @code{crypt} support
-from a site outside the US, such as @samp{ftp.ifi.uio.no}.
+Features can be added to GNU Libc via @dfn{add-on} bundles. These are
+separate tarfiles which you unpack into the top level of the source
+tree. Then you give @code{configure} the @samp{--enable-add-ons} option
+to activate them, and they will be compiled into the library. As of the
+2.1 release, two important components of glibc are distributed as
+``official'' add-ons. Unless you are doing an unusual installation, you
+should get them both.
+
+Support for POSIX threads is maintained by someone else, so it's in a
+separate package. It is only available for Linux systems, but this will
+change in the future. Get it from the same place you got the main
+bundle; the file is @file{glibc-linuxthreads-@var{VERSION}.tar.gz}.
+Support for the @code{crypt} function is distributed separately because
+of United States export restrictions. If you are outside the US or
+Canada, you must get @code{crypt} support from a site outside the US,
+such as @samp{ftp.ifi.uio.no}.
@c Check this please someone:
(Most non-US mirrors of @samp{ftp.gnu.org} will have it too.) The file
-you need is @file{glibc-crypt-@var{VERSION}.tar.gz}. Support for POSIX
-threads is maintained by someone else, so it's in a separate package.
-At the moment it is only available for Linux systems; this will change
-in the future. Get it from the same place you got the main bundle; the
-file is @file{glibc-linuxthreads-@var{VERSION}.tar.gz}. Both add-on
-bundles should be unpacked into the top level of the libc source tree.
+you need is @file{glibc-crypt-@var{VERSION}.tar.gz}.
You will need recent versions of several GNU tools: definitely GCC and
GNU Make, and possibly others. @xref{Tools for Compilation}, below.
@menu
* Configuring and compiling:: How to compile and test GNU libc.
+* Installation:: How to install it once you've got it compiled.
* Tools for Compilation:: You'll need these first.
* Supported Configurations:: What it runs on, what it doesn't.
+* Linux:: Specific advice for Linux systems.
* Reporting Bugs:: So they'll get fixed.
@end menu
@node Configuring and compiling
@appendixsec Configuring and compiling GNU Libc
+@cindex configuring
+@cindex compiling
GNU Libc cannot be compiled in the source directory. You must create a
separate directory for the object files. This directory should be
@noindent
@code{configure} takes many options, but you can get away with knowing
-only two: @samp{--enable-add-ons} and @samp{--prefix}. The
-@samp{--enable-add-ons} option tells configure to use all the add-on
-bundles it finds in the source directory. Since important functionality
-is provided in add-ons, you should always give this option. The
+only two: @samp{--prefix} and @samp{--enable-add-ons}. The
@code{--prefix} option tells configure where you want glibc installed.
-This defaults to @file{/usr/local}. If you are installing glibc as your
-primary C library, give the option @samp{--prefix=/usr}, which will put
-components in @file{/usr} or @file{/} as appropriate.
+This defaults to @file{/usr/local}. The @samp{--enable-add-ons} option
+tells configure to use all the add-on bundles it finds in the source
+directory. Since important functionality is provided in add-ons, you
+should always give this option.
It may also be useful to set the @var{CC} and @var{CFLAGS} variables in
the environment when running @code{configure}. @var{CC} selects the C
functionality may be lost---for example, you can not build a shared libc
with old binutils.)
-@c extra blank line makes it look better
@item --without-fp
Use this option if your computer lacks hardware floating-point support
and your operating system does not emulate an FPU.
linked statically with the NSS libraries cannot be dynamically
reconfigured to use a different name database.
-@c another extra blank line
@item --build=@var{build-system}
@itemx --host=@var{host-system}
These options are for cross-compiling. If you give them both and
option too, and you may have to override @var{configure}'s selection of
the compiler and/or binutils.
-If you give just one of these, @code{configure} will get confused. If
-@code{configure} doesn't correctly guess your system type for a native
-build, report that as a bug.
+If you give just @samp{--host}, configure will prepare for a native
+compile but use what you say instead of guessing what your system is.
+This is most useful to change the CPU submodel. For example, if
+configure guesses your machine as @code{i586-pc-linux-gnu} but you want
+to compile a library optimized for 386es, give
+@samp{--host=i386-pc-linux-gnu} or just @samp{--host=i386-linux}. (A
+library compiled for a Pentium (@code{i586}) will still work on a 386,
+but it may be slower.)
+
+If you give just @samp{--build}, configure will get confused.
@end table
To build the library and related programs, type @code{make}. This will
To format the @cite{GNU C Library Reference Manual} for printing, type
@w{@code{make dvi}}. You need a working @TeX{} installation to do this.
+The distribution already includes the on-line formatted version of the
+manual, as Info files. You can regenerate those with @w{@code{make
+info}}, but it shouldn't be necessary.
+
+@node Installation
+@appendixsec Installing the C Library
+@cindex installing
To install the library and its header files, and the Info files of the
manual, type @code{make install}. This will build things if necessary,
-before installing them. If you want to install the files in a different
-place than the one specified at configuration time you can specify a
-value for the Makefile variable @code{install_root} on the command line.
-This is useful to create chroot'ed environment or to prepare binary
-releases.@refill
+before installing them. Don't rely on that; compile everything first.
+If you are installing glibc as your primary C library, we recommend you
+shut the system down to single-user mode first, and reboot afterward.
+This minimizes the risk of breaking things when the library changes out
+from underneath.
+
+If you are upgrading from a previous installation of glibc 2.0 or 2.1,
+@samp{make install} will do the entire job. If you're upgrading from
+Linux libc5 or some other C library, you need to rename the old
+@file{/usr/include} directory out of the way first, or you will end up
+with a mixture of header files from both libraries, and you won't be
+able to compile anything. You may also need to reconfigure GCC to work
+with the new library. The easiest way to do that is to figure out the
+compiler switches to make it work again
+(@samp{-Wl,-dynamic-linker=/lib/ld-linux.so.2} should work on Linux
+systems) and use them to recompile gcc. You can also edit the specs
+file (@file{/usr/lib/gcc-lib/@var{TARGET}/@var{VERSION}/specs}), but
+that is a bit of a black art.
+
+You can install glibc somewhere other than where you configured it to go
+by setting the @code{install_root} variable on the command line for
+@samp{make install}. The value of this variable is prepended to all the
+paths for installation. This is useful when setting up a chroot
+environment or preparing a binary distribution.
+
+Glibc 2.1 includes two daemons, @code{nscd} and @code{utmpd}, which you
+may or may not want to run. @code{nscd} caches name service lookups; it
+can dramatically improve performance with NIS+, and may help with DNS as
+well. @code{utmpd} allows programs that use the old format for the
+@file{utmp} file to coexist with new programs. For more information see
+the files @file{nscd/README} and @file{login/README.utmpd}.
+
+One auxiliary program, @file{/usr/libexec/pt_chown}, is installed setuid
+@code{root}. This program is invoked by the @code{grantpt} function; it
+sets the permissions on a pseudoterminal so it can be used by the
+calling process. This means programs like @code{xterm} and
+@code{screen} do not have to be setuid to get a pty. (There may be
+other reasons why they need privileges.) If you are using a 2.1 Linux
+kernel with the @code{devptsfs} or @code{devfs} filesystems providing
+pty slaves, you don't need this program; otherwise you do. The source
+for @file{pt_chown} is in @file{login/programs/pt_chown.c}.
@node Tools for Compilation
@appendixsec Recommended Tools for Compilation
The GNU C library can only be compiled with the GNU C compiler family.
We recommend EGCS 1.0.3 or higher. GCC 2.8.1 and older versions of EGCS
may have problems, particularly on non-Intel architectures. GCC 2.7.x
-has catastrophic bugs and cannot be used at all.
+has catastrophic bugs and cannot be used at all. (You can use GCC 2.7.x
+to compile programs that use GNU libc, but you may have problems,
+particularly with the math functions.)
@item
GNU @code{binutils} 2.8.1.0.23, 2.9.1, or 2.9.0.15
To correctly translate and install the Texinfo documentation you need
this version of the @code{texinfo} package. Earlier versions do not
understand all the tags used in the document, and the installation
-mechanisms for the info files is not present or works differently.
-
-On some Debian Linux based systems the @code{install-info} program
-supplied with the system works differently from the one we expect. You
-must therefore run @code{make install} like this:
-
-@smallexample
-make INSTALL_INFO=/path/to/GNU/install-info install
-@end smallexample
+mechanism for the info files is not present or works differently.
@item
GNU @code{awk} 3.0, or some other POSIX awk
Awk is used in several places to generate files. The scripts should
-work with any POSIX-compliant awk implementation; GNU awk 3.0 and
+work with any POSIX-compliant awk implementation; @code{gawk} 3.0 and
@code{mawk} 1.3 are known to work.
@item
@samp{i586}, or @samp{i686}. All of those configurations produce a
library that can run on any of these processors. The library will be
optimized for the specified processor, but will not use instructions not
-available on all of them.
-
-While no other configurations are supported, there are handy aliases for
-these few. (These aliases work in other GNU software as well.)
-
-@smallexample
-decstation
-hp320-bsd4.3 hp300bsd
-i486-gnu
-i586-linux
-i386-sco
-i386-sco3.2v4
-i386-sequent-dynix
-i386-svr4
-news
-sun3-sunos4.@var{n} sun3
-sun4-solaris2.@var{n} sun4-sunos5.@var{n}
-sun4-sunos4.@var{n} sun4
-@end smallexample
+available on all of them. If you want the library to use instructions
+only available on newer processors, give GCC the appropriate @samp{-m}
+switches via @var{CFLAGS}.
+
+@node Linux
+@appendixsec Specific advice for Linux systems
+@cindex upgrading from libc5
+@cindex kernel header files
+
+If you are installing GNU libc on a Linux system, you need to have the
+header files from a development kernel around for reference. You do not
+need to use the development kernel, just have its headers where glibc
+can get at them. The easiest way to do this is to unpack a development
+kernel in a directory such as @file{/usr/src/linux-dev}. In that
+directory, run @samp{make config} and accept all the defaults. Then
+configure glibc with the option
+@samp{--with-headers=/usr/src/linux-dev/include}. Use the latest
+development kernel you can get your hands on.
+
+An alternate tactic is to unpack the development kernel and run
+@samp{make config} as above. Then rename or delete @file{/usr/include},
+create a new @file{/usr/include}, and make the usual symbolic links of
+@file{/usr/include/linux} and @file{/usr/include/asm} into the
+development kernel sources. You can then configure glibc with no
+special options. This tactic is recommended if you are upgrading from
+libc5, since you need to get rid of the old header files anyway.
+
+Note that @file{/usr/include/net} and @file{/usr/include/scsi} should
+@strong{not} be symlinks into the kernel sources. GNU libc provides its
+own versions of these files.
+
+Linux expects some components of the libc installation to be in
+@file{/lib} and some in @file{/usr/lib}. This is handled automatically
+if you configure glibc with @samp{--prefix=/usr}. If you set some other
+prefix or allow it to default to @file{/usr/local}, then all the
+components are installed there.
+
+If you are upgrading from libc5, you need to recompile every shared
+library on your system against the new library for the sake of new code,
+but keep the old libraries around for old binaries to use. This is
+complicated and difficult. Consult the Glibc2 HOWTO at
+@url{http://www.imaxx.net/~thrytis/glibc} for details.
+
+You cannot use @code{nscd} with 2.0 kernels, due to bugs in the
+kernel-side thread support. @code{nscd} happens to hit these bugs
+particularly hard, but you might have problems with any threaded
+program.
@node Reporting Bugs
@appendixsec Reporting Bugs
good way to do this is to see if the GNU C library behaves the same way
some other C library does. If so, probably you are wrong and the
libraries are right (but not necessarily). If not, one of the libraries
-is probably wrong.
+is probably wrong. It might not be the GNU library. Many historical
+Unix C libraries permit things that we don't, such as closing a file
+twice.
+
+If you think you have found some way in which the GNU C library does not
+conform to the ISO and POSIX standards (@pxref{Standards and
+Portability}), that is definitely a bug. Report it!
Once you're sure you've found a bug, try to narrow it down to the
smallest test case that reproduces the problem. In the case of a C
function call, if possible. This should not be too difficult.
The final step when you have a simple test case is to report the bug.
-When reporting a bug, send your test case, the results you got, the
-results you expected, what you think the problem might be (if you've
-thought of anything), your system type, and the version of the GNU C
-library which you are using. Also include the files
-@file{config.status} and @file{config.make} which are created by running
-@file{configure}; they will be in whatever directory was current when
-you ran @file{configure}.
-
-If you think you have found some way in which the GNU C library does not
-conform to the ISO and POSIX standards (@pxref{Standards and
-Portability}), that is definitely a bug. Report it!@refill
-
-Send bug reports to the Internet address @email{bug-glibc@@gnu.org}
-using the @code{glibcbug} script which is installed by the GNU C
-library. If you have other problems with installation or use, please
-report those as well.@refill
+Do this using the @code{glibcbug} script. It is installed with libc, or
+if you haven't installed it, will be in your build directory. Send your
+test case, the results you got, the results you expected, and what you
+think the problem might be (if you've thought of anything).
+@code{glibcbug} will insert the configuration information we need to
+see, and ship the report off to @email{bug-glibc@@gnu.org}. Don't send
+a message there directly; it is fed to a program that expects mail to be
+formatted in a particular way. Use the script.
If you are not sure how a function should behave, and this manual
doesn't tell you, that's a bug in the manual. Report that too! If the
@setchapternewpage odd
@comment Tell install-info what to do.
-@dircategory GNU libraries:
+@dircategory GNU libraries
@direntry
* Libc: (libc). C library.
@end direntry
/* Prototype declarations for complex math functions;
helper file for <complex.h>.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
#error "Never use <bits/cmathcalls.h> directly; include <complex.h> instead."
#endif
-#define _Mdouble_complex_ _Mdouble_ complex
+#define _Mdouble_complex_ _Mdouble_ _Complex
/* Trigonometric functions. */
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
#include <features.h>
+/* Get general and ISO C 9X specific information. */
+#include <bits/mathdef.h>
+
__BEGIN_DECLS
/* We might need to add support for more compilers here. But once ISO
C 9X is out hopefully all maintained compilers will provide the data
types `float complex' and `double complex'. */
#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ > 2
-# define complex __complex__
+# define _Complex __complex__
#endif
/* Now the float versions. */
#ifndef _Mfloat_
-#define _Mfloat_ float
+# define _Mfloat_ float
#endif
#define _Mdouble_ _Mfloat_
#ifdef __STDC__
-#define __MATH_PRECNAME(name) name##f
+# define __MATH_PRECNAME(name) name##f
#else
-#define __MATH_PRECNAME(name) name/**/f
+# define __MATH_PRECNAME(name) name/**/f
#endif
#include <bits/cmathcalls.h>
#undef _Mdouble_
/* And the long double versions. It is non-critical to define them
here unconditionally since `long double' is required in ISO C 9X. */
-#ifndef _Mlong_double_
-#define _Mlong_double_ long double
+#if __STDC__ - 0 || __GNUC__ - 0 && !defined __NO_LONG_DOUBLE_MATH
+# ifndef _Mlong_double_
+# define _Mlong_double_ long double
+# endif
+# define _Mdouble_ _Mlong_double_
+# ifdef __STDC__
+# define __MATH_PRECNAME(name) name##l
+# else
+# define __MATH_PRECNAME(name) name/**/l
+# endif
+# include <bits/cmathcalls.h>
#endif
-#define _Mdouble_ _Mlong_double_
-#ifdef __STDC__
-#define __MATH_PRECNAME(name) name##l
-#else
-#define __MATH_PRECNAME(name) name/**/l
-#endif
-#include <bits/cmathcalls.h>
#undef _Mdouble_
#undef __MATH_PRECNAME
#undef __MATHDECL_1
projects / thirdparty / glibc.git / commitdiff
