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Remove some doc for no-longer-used systems; update URLs

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Paul Eggert 2024-10-26 17:00:31 -07:00
parent 36fa24859f
commit 85b81c91fc
9 changed files with 26 additions and 55 deletions
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2
ChangeLog.3
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@ -20064,7 +20064,7 @@
2001-12-12 Steven G. Johnson <stevenj@alum.mit.edu>
* lib/autoconf/fortran.m4 (_AC_PROG_F77_V_OUTPUT): Fix failed
C/Fortran linking on HP/UX, by extracting the Fortran library
C/Fortran linking on HP-UX, by extracting the Fortran library
search path from the LPATH line in the $F77 -v output.
2001-12-12 Kevin Ryde <user42@zip.com.au>

2
NEWS
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@ -2072,7 +2072,7 @@ Release tips:
- The top level $prefix is propagated to the AC_CONFIG_SUBDIRS configures.
- AC_TRY_RUN
Under the user pressure, $? is finally available. Probably a mistake.
- AC_F77_LIBRARY_LDFLAGS now supports the HP/UX f90 compiler.
- AC_F77_LIBRARY_LDFLAGS now supports the HP-UX f90 compiler.
- Precious variables accumulation
config.status could stack several copies of the precious variables
assignments.

60
doc/autoconf.texi
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@ -5620,7 +5620,7 @@ portability problems of this function.
@cvindex HAVE_STRFTIME
@c @fuindex strftime
@prindex @code{strftime}
Check for @code{strftime} in the @file{intl} library, for SCO Unix.
Check for @code{strftime} in the @file{intl} library.
Then, if @code{strftime} is available, define @code{HAVE_STRFTIME}.
This macro is obsolescent, as no current systems require the @file{intl}
@ -6102,7 +6102,7 @@ of type @code{struct dirent}, not @code{struct direct}, and would access
the length of a directory entry name by passing a pointer to a
@code{struct dirent} to the @code{NAMLEN} macro.
This macro also checks for the SCO Xenix @file{dir} and @file{x} libraries.
This macro also checks for the obsolete @file{dir} and @file{x} libraries.
This macro is obsolescent, as all current systems with directory
libraries have @code{<dirent.h>}. New programs need not use this macro.
@ -7203,7 +7203,7 @@ etc.).
@caindex prog_cxx_openmp
@caindex prog_f77_openmp
@caindex prog_fc_openmp
@uref{http://@/www.openmp.org/, OpenMP} specifies extensions of C, C++,
@uref{https://@/www.openmp.org/, OpenMP} specifies extensions of C, C++,
and Fortran that simplify optimization of shared memory parallelism,
which is a common problem on multi-core CPUs.
@ -8844,12 +8844,12 @@ compiler. Also, when using this macro in concert with
@code{AC_CONFIG_HEADERS}, be sure that @file{config.h} is included
before any system header.
The following preprocessor macros are defined unconditionally:
Define the following preprocessor macros unconditionally:
@table @code
@item _ALL_SOURCE
@cvindex _ALL_SOURCE
Enable extensions on AIX 3 and Interix.
Enable extensions on AIX and z/OS.
@item _DARWIN_C_SOURCE
@cvindex _DARWIN_C_SOURCE
Enable extensions on macOS.
@ -8922,7 +8922,7 @@ Programs that need to recognize Minix should use @code{AC_CANONICAL_HOST}.
@item _XOPEN_SOURCE
@cvindex _XOPEN_SOURCE
Defined (with value 500) only if needed to make @file{wchar.h} declare
@code{mbstate_t}. This is known to be necessary on some versions of HP/UX.
@code{mbstate_t}. This is known to be necessary on some versions of HP-UX.
@end table
@cvindex __STDC_WANT_DEC_FP__
@ -8932,7 +8932,7 @@ ISO/IEC TR 24732:2009 was superseded by ISO/IEC TS 18661-2:2015.
@cvindex __STDC_WANT_LIB_EXT1__
The C preprocessor macro @code{__STDC_WANT_LIB_EXT1__} is not defined,
as the C standard's Annex K is problematic. See: O'Donell C, Sebor M.
@uref{http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1967.htm, Field
@uref{https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1967.htm, Field
Experience With Annex K---Bounds Checking Interfaces}.
The Autoconf macro @code{AC_USE_SYSTEM_EXTENSIONS} was introduced in
@ -15427,13 +15427,13 @@ by users.
systems} are derived from the
@uref{https://@/en.wikipedia.org/@/wiki/@/Unix, Unix operating system}.
The @uref{http://@/bhami.com/@/rosetta.html, Rosetta Stone for Unix}
The @uref{https://@/bhami.com/@/rosetta.html, Rosetta Stone for Unix}
contains a table correlating the features of various Posix-conforming
systems. @uref{https://@/www.levenez.com/@/unix/, Unix History} is a
simplified diagram of how many Unix systems were derived from each
other.
@uref{http://@/heirloom.sourceforge.net/, The Heirloom Project}
@uref{https://@/heirloom.sourceforge.net/, The Heirloom Project}
provides some variants of traditional implementations of Unix utilities.
@table @asis
@ -17156,11 +17156,6 @@ environment variables be set to @samp{C} if the C locale is desired;
@file{configure} scripts and M4sh do that for you.
Export these variables after setting them.
@c However, some older, nonstandard
@c systems (notably SCO) break if locale environment variables
@c are set to @samp{C}, so when running on these systems
@c Autoconf-generated scripts unset the variables instead.
@item LANGUAGE
@evindex LANGUAGE
@ -21879,7 +21874,7 @@ alleviates some symptoms of a bug while not fixing the bug in general.
Almost all modern systems use IEEE-754 floating point, and it is safe to
assume IEEE-754 in most portable code these days. For more information,
please see David Goldberg's classic paper
@uref{http://@/www.validlab.com/@/goldberg/@/paper.pdf, What Every Computer
@uref{https://@/www.validlab.com/@/goldberg/@/paper.pdf, What Every Computer
Scientist Should Know About Floating-Point Arithmetic}.
@node Exiting Portably
@ -24008,15 +24003,8 @@ Removed because of limited usefulness.
@defmac AC_SCO_INTL
@acindex{SCO_INTL}
@ovindex LIBS
If on SCO Unix, add @option{-lintl} to output variable @code{LIBS}. This
macro used to do this:
@example
AC_CHECK_LIB([intl], [strftime], [LIBS="-lintl $LIBS"])
@end example
@noindent
Now it just calls @code{AC_FUNC_STRFTIME} instead (@pxref{AC_FUNC_STRFTIME}).
Equivalent to the obsolescent macro @code{AC_FUNC_STRFTIME}.
@xref{AC_FUNC_STRFTIME}.
@end defmac
@defmac AC_SETVBUF_REVERSED
@ -24359,22 +24347,8 @@ Replaced by @code{AC_C_BIGENDIAN} (@pxref{AC_C_BIGENDIAN}).
@defmac AC_XENIX_DIR
@acindex{XENIX_DIR}
@ovindex LIBS
This macro used to add @option{-lx} to output variable @code{LIBS} if on
Xenix. Also, if @file{dirent.h} is being checked for, added
@option{-ldir} to @code{LIBS}. Now it is merely an alias of
@code{AC_HEADER_DIRENT} instead, plus some code to detect whether
running XENIX on which you should not depend:
@example
AC_MSG_CHECKING([for Xenix])
AC_EGREP_CPP([yes],
[#if defined M_XENIX && !defined M_UNIX
yes
#endif],
[AC_MSG_RESULT([yes]); XENIX=yes],
[AC_MSG_RESULT([no]); XENIX=])
@end example
@noindent
This macro is equivalent to the obsolescent @code{AC_HEADER_DIRENT}
macro, plus it also sets the shell variable @code{XENIX}.
Don't use this macro, the dignified means to check the nature of the
host is using @code{AC_CANONICAL_HOST} (@pxref{Canonicalizing}).
@end defmac
@ -26538,7 +26512,7 @@ search for markers like @samp{checking for} a particular test in the
@item
Alternatively, you might use a shell with debugging capabilities like
@uref{http://bashdb.sourceforge.net/, bashdb}.
@uref{https://bashdb.sourceforge.net/, bashdb}.
@item
When @command{configure} tests produce invalid results for your system,
@ -26968,7 +26942,7 @@ introduced in this document.
@c LocalWords: lstat rpl MEMCMP memcmp OpenStep MBRTOWC mbrtowc MKTIME mktime
@c LocalWords: localtime MMAP mmap OBSTACK obstack obstacks ARGTYPES timeval
@c LocalWords: SETPGRP setpgrp defmacx Hurd SETVBUF setvbuf STRCOLL strcoll
@c LocalWords: STRTOD strtod DECL STRFTIME strftime SCO UTIME utime VPRINTF
@c LocalWords: STRTOD strtod DECL STRFTIME strftime UTIME utime VPRINTF
@c LocalWords: DOPRNT vprintf doprnt sp unfixable LIBSOURCE LIBSOURCES Eggert
@c LocalWords: linux netinet ia Tru XFree DIRENT NDIR dirent ndir multitable
@c LocalWords: NAMLEN strlen namlen MKDEV SYSMACROS makedev RESOLV resolv DNS
@ -27029,7 +27003,7 @@ introduced in this document.
@c LocalWords: yywrap xflex lexyy YFLAGS yacc divnum libs fuindex ffs
@c LocalWords: environ sigaction extern ftello nonnull STRTOLD LLONG
@c LocalWords: strtold vfprintf ULLONG strcasecmp strncasecmp MSVC th
@c LocalWords: NDEBUG Xenix INO libc ISDIR ISREG Tektronix Amdahl ino
@c LocalWords: NDEBUG INO libc ISDIR ISREG Tektronix Amdahl ino
@c LocalWords: typedef pxref fileblocks submembers INTMAX intmax UINT
@c LocalWords: INTPTR intptr SSIZE ssize uint UINTPTR uintptr OPENMP
@c LocalWords: openmp OpenMP omp Alignas Alignof Noreturn UTF vals gl

2
lib/autoconf/fortran.m4
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@ -519,7 +519,7 @@ _AC_LANG_PREFIX[]FLAGS=$ac_save_[]_AC_LANG_PREFIX[]FLAGS
rm -rf conftest*
# On HP/UX there is a line like: "LPATH is: /foo:/bar:/baz" where
# On HP-UX there is a line like: "LPATH is: /foo:/bar:/baz" where
# /foo, /bar, and /baz are search directories for the Fortran linker.
# Here, we change these into -L/foo -L/bar -L/baz (and put it first):
ac_[]_AC_LANG_ABBREV[]_v_output=`AS_ECHO(["$ac_[]_AC_LANG_ABBREV[]_v_output"])|

4
lib/autoconf/functions.m4
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@ -558,7 +558,7 @@ AC_DEFUN([_AC_FUNC_FNMATCH_IF],
[AC_CACHE_CHECK(
[for working $1 fnmatch],
[$2],
[# Some versions of Solaris, SCO, and the GNU C Library
[# Some versions of Solaris and the GNU C Library
# have a broken or incompatible fnmatch.
# So we run a test program. If we are cross-compiling, take no chance.
# Thanks to John Oleynick, François Pinard, and Paul Eggert for this test.
@ -669,7 +669,7 @@ m4_define([_AC_FUNC_FSEEKO_TEST_PROGRAM],
# Check for correctly prototyped declarations of fseeko and ftello;
# define HAVE_FSEEKO if they are available. If it is necessary to
# define _LARGEFILE_SOURCE=1 to make these declarations available,
# do that (this is needed on 32-bit HP/UX). We used to try defining
# do that (this is needed on 32-bit HP-UX). We used to try defining
# _XOPEN_SOURCE=500 too, to work around a bug in glibc 2.1.3, but that
# breaks too many other things. If you want fseeko and ftello with
# glibc, upgrade to a fixed glibc.

4
lib/autoconf/programs.m4
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@ -586,8 +586,8 @@ case $as_dir in @%:@((
?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
/usr/ucb/* ) ;;
*)]
# OSF1 and SCO ODT 3.0 have their own names for install.
# Don't use installbsd from OSF since it installs stuff as root
# OSF/1 and SCO ODT 3.0 have their own names for install.
# Don't use installbsd from OSF/1 since it installs stuff as root
# by default.
for ac_prog in ginstall scoinst install; do
for ac_exec_ext in '' $ac_executable_extensions; do

2
lib/autoconf/specific.m4
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@ -339,7 +339,7 @@ AC_CONFIG_COMMANDS_PRE([_AC_SYS_YEAR2038_ENABLE])])
# By default, many hosts won't let programs access large files;
# one must use special compiler options to get large-file access to work.
# For more details about this brain damage please see:
# http://www.unix.org/version2/whatsnew/lfs20mar.html
# https://unix.org/version2/whatsnew/lfs20mar.html
# Additionally, on Linux file systems with 64-bit inodes a file that happens
# to have a 64-bit inode number cannot be accessed by 32-bit applications on
# Linux x86/x86_64. This can occur with file systems such as XFS and NFS.

3
lib/m4sugar/m4sh.m4
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@ -192,9 +192,6 @@ m4_define([_AS_DETECT_SUGGESTED_PRUNE],
# and on HP-UX 11.11, see the failure of test 120 in
# <https://lists.gnu.org/archive/html/bug-autoconf/2006-10/msg00003.html>
#
# FIXME: The code should test for the OSF bug described in
# <https://lists.gnu.org/archive/html/autoconf-patches/2006-03/msg00081.html>.
#
# This code is run outside any trap 0 context, hence we can simplify AS_EXIT.
m4_defun([_AS_DETECT_BETTER_SHELL],
dnl

2
tests/torture.at
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@ -812,7 +812,7 @@ AT_CLEANUP
## Substitute a 2000-byte string. ##
## ------------------------------- ##
# Solaris 9 /usr/ucb/sed that rejects commands longer than 4000 bytes. HP/UX
# Solaris 9 /usr/ucb/sed that rejects commands longer than 4000 bytes. HP-UX
# sed dumps core around 8 KiB. However, POSIX says that sed need not
# handle lines longer than 2048 bytes (including the trailing newline).
# So we'll just test a 2000-byte value, and for awk, we test a line with