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Last change on this file was 3228, checked in by bird, 18 years ago
bash 3.1
File size: 33.1 KB

Rev	Line
[3228]	1	dnl
	2	dnl Configure script for bash-3.1
	3	dnl
	4	dnl report bugs to chet@po.cwru.edu
	5	dnl
	6	dnl Process this file with autoconf to produce a configure script.
	7
	8	# Copyright (C) 1987-2005 Free Software Foundation, Inc.
	9
	10	# This program is free software; you can redistribute it and/or modify
	11	# it under the terms of the GNU General Public License as published by
	12	# the Free Software Foundation; either version 2, or (at your option)
	13	# any later version.
	14
	15	# This program is distributed in the hope that it will be useful,
	16	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	# GNU General Public License for more details.
	19
	20	# You should have received a copy of the GNU General Public License
	21	# along with this program; if not, write to the Free Software
	22	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	23	# 02111-1307, USA.
	24
	25	AC_REVISION([for Bash 3.1, version 3.183])dnl
	26
	27	define(bashvers, 3.1)
	28	define(relstatus, release)
	29
	30	AC_INIT(bash, bashvers-relstatus, bug-bash@gnu.org)
	31
	32	dnl make sure we are using a recent autoconf version
	33	AC_PREREQ(2.50)
	34
	35	AC_CONFIG_SRCDIR(shell.h)
	36	dnl where to find install.sh, config.sub, and config.guess
	37	AC_CONFIG_AUX_DIR(./support)
	38	AC_CONFIG_HEADERS(config.h)
	39
	40	dnl checks for version info
	41	BASHVERS=bashvers
	42	RELSTATUS=relstatus
	43
	44	dnl defaults for debug settings
	45	case "$RELSTATUS" in
	46	alp\|bet\|dev\|rc) DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;;
	47	*) DEBUG= MALLOC_DEBUG= ;;
	48	esac
	49
	50	dnl canonicalize the host and os so we can do some tricky things before
	51	dnl parsing options
	52	AC_CANONICAL_HOST
	53
	54	dnl configure defaults
	55	opt_bash_malloc=yes
	56	opt_purify=no
	57	opt_purecov=no
	58	opt_afs=no
	59	opt_curses=no
	60	opt_with_installed_readline=no
	61
	62	#htmldir=
	63
	64	dnl some systems should be configured without the bash malloc by default
	65	dnl and some need a special compiler or loader
	66	dnl look in the NOTES file for more
	67	case "${host_cpu}-${host_os}" in
	68	alpha-) opt_bash_malloc=no ;; # alpha running osf/1 or linux
	69	[[Cc]]ray-*) opt_bash_malloc=no ;; # Crays
	70	-osf1) opt_bash_malloc=no ;; # other osf/1 machines
	71	sparc-svr4*) opt_bash_malloc=no ;; # sparc SVR4, SVR4.2
	72	sparc-netbsd*) opt_bash_malloc=no ;; # needs 8-byte alignment
	73	mips-irix6*) opt_bash_malloc=no ;; # needs 8-byte alignment
	74	m68k-sysv) opt_bash_malloc=no ;; # fixes file descriptor leak in closedir
	75	sparc-linux*) opt_bash_malloc=no ;; # sparc running linux; requires ELF
	76	#-freebsd-gnu) opt_bash_malloc=no ;; # there's some undetermined problem here
	77	#-freebsd) opt_bash_malloc=no ;; # they claim it's better; I disagree
	78	-openbsd) opt_bash_malloc=no ;; # they claim it needs eight-bit alignment
	79	-aix) opt_bash_malloc=no ;; # AIX machines
	80	-nextstep) opt_bash_malloc=no ;; # NeXT machines running NeXTstep
	81	-macos) opt_bash_malloc=no ;; # Apple MacOS X
	82	-rhapsody) opt_bash_malloc=no ;; # Apple Rhapsody (MacOS X)
	83	-darwin) opt_bash_malloc=no ;; # Apple Darwin (MacOS X)
	84	-dgux) opt_bash_malloc=no ;; # DG/UX machines
	85	-qnx) opt_bash_malloc=no ;; # QNX 4.2, QNX 6.x
	86	*-machten4) opt_bash_malloc=no ;; # MachTen 4.x
	87	-bsdi2.1\|-bsdi3.?) opt_bash_malloc=no ; : ${CC:=shlicc2} ;; # for loadable builtins
	88	-beos) opt_bash_malloc=no ;; # they say it's suitable
	89	-cygwin) opt_bash_malloc=no ;; # Cygnus's CYGWIN environment
	90	-opennt\|-interix) opt_bash_malloc=no ;; # Interix, now owned by Microsoft
	91	esac
	92
	93	# memory scrambling on free()
	94	case "${host_os}" in
	95	sco3.2v5\|sco3.2v4) opt_memscramble=no ;;
	96	*) opt_memscramble=yes ;;
	97	esac
	98
	99	dnl
	100	dnl macros for the bash debugger
	101	dnl
	102	AM_PATH_LISPDIR
	103	AC_ARG_VAR(DEBUGGER_START_FILE, [location of bash debugger initialization file])
	104
	105	dnl arguments to configure
	106	dnl packages
	107	AC_ARG_WITH(afs, AC_HELP_STRING([--with-afs], [if you are running AFS]), opt_afs=$withval)
	108	AC_ARG_WITH(bash-malloc, AC_HELP_STRING([--with-bash-malloc], [use the Bash version of malloc]), opt_bash_malloc=$withval)
	109	AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
	110	AC_ARG_WITH(gnu-malloc, AC_HELP_STRING([--with-gnu-malloc], [synonym for --with-bash-malloc]), opt_bash_malloc=$withval)
	111	AC_ARG_WITH(installed-readline, AC_HELP_STRING([--with-installed-readline], [use a version of the readline library that is already installed]), opt_with_installed_readline=$withval)
	112	AC_ARG_WITH(purecov, AC_HELP_STRING([--with-purecov], [configure to postprocess with pure coverage]), opt_purecov=$withval)
	113	AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)
	114
	115	if test "$opt_bash_malloc" = yes; then
	116	MALLOC_TARGET=malloc
	117	MALLOC_SRC=malloc.c
	118
	119	MALLOC_LIB='-lmalloc'
	120	MALLOC_LIBRARY='$(ALLOC_LIBDIR)/libmalloc.a'
	121	MALLOC_LDFLAGS='-L$(ALLOC_LIBDIR)'
	122	MALLOC_DEP='$(MALLOC_LIBRARY)'
	123
	124	AC_DEFINE(USING_BASH_MALLOC)
	125	else
	126	MALLOC_LIB=
	127	MALLOC_LIBRARY=
	128	MALLOC_LDFLAGS=
	129	MALLOC_DEP=
	130	fi
	131
	132	if test "$opt_purify" = yes; then
	133	PURIFY="purify "
	134	AC_DEFINE(DISABLE_MALLOC_WRAPPERS)
	135	else
	136	PURIFY=
	137	fi
	138
	139	if test "$opt_purecov" = yes; then
	140	PURIFY="${PURIFY}purecov"
	141	fi
	142
	143	if test "$opt_afs" = yes; then
	144	AC_DEFINE(AFS)
	145	fi
	146
	147	if test "$opt_curses" = yes; then
	148	prefer_curses=yes
	149	fi
	150
	151	if test -z "${DEBUGGER_START_FILE}"; then
	152	DEBUGGER_START_FILE=${ac_default_prefix}/lib/bashdb/bashdb-main.inc
	153	fi
	154
	155	dnl optional shell features in config.h.in
	156	opt_minimal_config=no
	157
	158	opt_job_control=yes
	159	opt_alias=yes
	160	opt_readline=yes
	161	opt_history=yes
	162	opt_bang_history=yes
	163	opt_dirstack=yes
	164	opt_restricted=yes
	165	opt_process_subst=yes
	166	opt_prompt_decoding=yes
	167	opt_select=yes
	168	opt_help=yes
	169	opt_array_variables=yes
	170	opt_dparen_arith=yes
	171	opt_extended_glob=yes
	172	opt_brace_expansion=yes
	173	opt_disabled_builtins=no
	174	opt_command_timing=yes
	175	opt_xpg_echo=no
	176	opt_strict_posix=no
	177	opt_cond_command=yes
	178	opt_cond_regexp=yes
	179	opt_arith_for_command=yes
	180	opt_net_redirs=yes
	181	opt_progcomp=yes
	182	opt_separate_help=no
	183	opt_multibyte=yes
	184	opt_debugger=yes
	185	opt_single_longdoc_strings=yes
	186
	187	dnl options that affect how bash is compiled and linked
	188	opt_static_link=no
	189	opt_profiling=no
	190
	191	dnl argument parsing for optional features
	192	AC_ARG_ENABLE(minimal-config, AC_HELP_STRING([--enable-minimal-config], [a minimal sh-like configuration]), opt_minimal_config=$enableval)
	193
	194	dnl a minimal configuration turns everything off, but features can be
	195	dnl added individually
	196	if test $opt_minimal_config = yes; then
	197	opt_job_control=no opt_alias=no opt_readline=no
	198	opt_history=no opt_bang_history=no opt_dirstack=no
	199	opt_restricted=no opt_process_subst=no opt_prompt_decoding=no
	200	opt_select=no opt_help=no opt_array_variables=no opt_dparen_arith=no
	201	opt_brace_expansion=no opt_disabled_builtins=no opt_command_timing=no
	202	opt_extended_glob=no opt_cond_command=no opt_arith_for_command=no
	203	opt_net_redirs=no opt_progcomp=no opt_separate_help=no
	204	opt_multibyte=yes opt_cond_regexp=no
	205	fi
	206
	207	AC_ARG_ENABLE(alias, AC_HELP_STRING([--enable-alias], [enable shell aliases]), opt_alias=$enableval)
	208	AC_ARG_ENABLE(arith-for-command, AC_HELP_STRING([--enable-arith-for-command], [enable arithmetic for command]), opt_arith_for_command=$enableval)
	209	AC_ARG_ENABLE(array-variables, AC_HELP_STRING([--enable-array-variables], [include shell array variables]), opt_array_variables=$enableval)
	210	AC_ARG_ENABLE(bang-history, AC_HELP_STRING([--enable-bang-history], [turn on csh-style history substitution]), opt_bang_history=$enableval)
	211	AC_ARG_ENABLE(brace-expansion, AC_HELP_STRING([--enable-brace-expansion], [include brace expansion]), opt_brace_expansion=$enableval)
	212	AC_ARG_ENABLE(command-timing, AC_HELP_STRING([--enable-command-timing], [enable the time reserved word and command timing]), opt_command_timing=$enableval)
	213	AC_ARG_ENABLE(cond-command, AC_HELP_STRING([--enable-cond-command], [enable the conditional command]), opt_cond_command=$enableval)
	214	AC_ARG_ENABLE(cond-regexp, AC_HELP_STRING([--enable-cond-regexp], [enable extgended regular expression matching in conditional commands]), opt_cond_regexp=$enableval)
	215	AC_ARG_ENABLE(debugger, AC_HELP_STRING([--enable-debugger], [enable support for bash debugger]), opt_debugger=$enableval)
	216	AC_ARG_ENABLE(directory-stack, AC_HELP_STRING([--enable-directory-stack], [enable builtins pushd/popd/dirs]), opt_dirstack=$enableval)
	217	AC_ARG_ENABLE(disabled-builtins, AC_HELP_STRING([--enable-disabled-builtins], [allow disabled builtins to still be invoked]), opt_disabled_builtins=$enableval)
	218	AC_ARG_ENABLE(dparen-arithmetic, AC_HELP_STRING([--enable-dparen-arithmetic], [include ((...)) command]), opt_dparen_arith=$enableval)
	219	AC_ARG_ENABLE(extended-glob, AC_HELP_STRING([--enable-extended-glob], [include ksh-style extended pattern matching]), opt_extended_glob=$enableval)
	220	AC_ARG_ENABLE(help-builtin, AC_HELP_STRING([--enable-help-builtin], [include the help builtin]), opt_help=$enableval)
	221	AC_ARG_ENABLE(history, AC_HELP_STRING([--enable-history], [turn on command history]), opt_history=$enableval)
	222	AC_ARG_ENABLE(job-control, AC_HELP_STRING([--enable-job-control], [enable job control features]), opt_job_control=$enableval)
	223	AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
	224	AC_ARG_ENABLE(net-redirections, AC_HELP_STRING([--enable-net-redirections], [enable /dev/tcp/host/port redirection]), opt_net_redirs=$enableval)
	225	AC_ARG_ENABLE(process-substitution, AC_HELP_STRING([--enable-process-substitution], [enable process substitution]), opt_process_subst=$enableval)
	226	AC_ARG_ENABLE(progcomp, AC_HELP_STRING([--enable-progcomp], [enable programmable completion and the complete builtin]), opt_progcomp=$enableval)
	227	AC_ARG_ENABLE(prompt-string-decoding, AC_HELP_STRING([--enable-prompt-string-decoding], [turn on escape character decoding in prompts]), opt_prompt_decoding=$enableval)
	228	AC_ARG_ENABLE(readline, AC_HELP_STRING([--enable-readline], [turn on command line editing]), opt_readline=$enableval)
	229	AC_ARG_ENABLE(restricted, AC_HELP_STRING([--enable-restricted], [enable a restricted shell]), opt_restricted=$enableval)
	230	AC_ARG_ENABLE(select, AC_HELP_STRING([--enable-select], [include select command]), opt_select=$enableval)
	231	AC_ARG_ENABLE(separate-helpfiles, AC_HELP_STRING([--enable-separate-helpfiles], [use external files for help builtin documentation]), opt_separate_help=$enableval)
	232	AC_ARG_ENABLE(single-help-strings, AC_HELP_STRING([--enable-single-help-strings], [store help documentation as a single string to ease translation]), opt_single_longdoc_strings=$enableval)
	233	AC_ARG_ENABLE(strict-posix-default, AC_HELP_STRING([--enable-strict-posix-default], [configure bash to be posix-conformant by default]), opt_strict_posix=$enableval)
	234	AC_ARG_ENABLE(usg-echo-default, AC_HELP_STRING([--enable-usg-echo-default], [a synonym for --enable-xpg-echo-default]), opt_xpg_echo=$enableval)
	235	AC_ARG_ENABLE(xpg-echo-default, AC_HELP_STRING([--enable-xpg-echo-default], [make the echo builtin expand escape sequences by default]), opt_xpg_echo=$enableval)
	236
	237	dnl options that alter how bash is compiled and linked
	238	AC_ARG_ENABLE(mem-scramble, AC_HELP_STRING([--enable-mem-scramble], [scramble memory on calls to malloc and free]), opt_memscramble=$enableval)
	239	AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling], [allow profiling with gprof]), opt_profiling=$enableval)
	240	AC_ARG_ENABLE(static-link, AC_HELP_STRING([--enable-static-link], [link bash statically, for use as a root shell]), opt_static_link=$enableval)
	241
	242	dnl opt_job_control is handled later, after BASH_JOB_CONTROL_MISSING runs
	243
	244	dnl opt_readline and opt_history are handled later, because AC_PROG_CC needs
	245	dnl to be run before we can check the version of an already-installed readline
	246	dnl library
	247
	248	if test $opt_alias = yes; then
	249	AC_DEFINE(ALIAS)
	250	fi
	251	if test $opt_dirstack = yes; then
	252	AC_DEFINE(PUSHD_AND_POPD)
	253	fi
	254	if test $opt_restricted = yes; then
	255	AC_DEFINE(RESTRICTED_SHELL)
	256	fi
	257	if test $opt_process_subst = yes; then
	258	AC_DEFINE(PROCESS_SUBSTITUTION)
	259	fi
	260	if test $opt_prompt_decoding = yes; then
	261	AC_DEFINE(PROMPT_STRING_DECODE)
	262	fi
	263	if test $opt_select = yes; then
	264	AC_DEFINE(SELECT_COMMAND)
	265	fi
	266	if test $opt_help = yes; then
	267	AC_DEFINE(HELP_BUILTIN)
	268	fi
	269	if test $opt_array_variables = yes; then
	270	AC_DEFINE(ARRAY_VARS)
	271	fi
	272	if test $opt_dparen_arith = yes; then
	273	AC_DEFINE(DPAREN_ARITHMETIC)
	274	fi
	275	if test $opt_brace_expansion = yes; then
	276	AC_DEFINE(BRACE_EXPANSION)
	277	fi
	278	if test $opt_disabled_builtins = yes; then
	279	AC_DEFINE(DISABLED_BUILTINS)
	280	fi
	281	if test $opt_command_timing = yes; then
	282	AC_DEFINE(COMMAND_TIMING)
	283	fi
	284	if test $opt_xpg_echo = yes ; then
	285	AC_DEFINE(DEFAULT_ECHO_TO_XPG)
	286	fi
	287	if test $opt_strict_posix = yes; then
	288	AC_DEFINE(STRICT_POSIX)
	289	fi
	290	if test $opt_extended_glob = yes ; then
	291	AC_DEFINE(EXTENDED_GLOB)
	292	fi
	293	if test $opt_cond_command = yes ; then
	294	AC_DEFINE(COND_COMMAND)
	295	fi
	296	if test $opt_cond_regexp = yes ; then
	297	AC_DEFINE(COND_REGEXP)
	298	fi
	299	if test $opt_arith_for_command = yes; then
	300	AC_DEFINE(ARITH_FOR_COMMAND)
	301	fi
	302	if test $opt_net_redirs = yes; then
	303	AC_DEFINE(NETWORK_REDIRECTIONS)
	304	fi
	305	if test $opt_progcomp = yes; then
	306	AC_DEFINE(PROGRAMMABLE_COMPLETION)
	307	fi
	308	if test $opt_multibyte = no; then
	309	AC_DEFINE(NO_MULTIBYTE_SUPPORT)
	310	fi
	311	if test $opt_debugger = yes; then
	312	AC_DEFINE(DEBUGGER)
	313	fi
	314
	315	if test $opt_memscramble = yes; then
	316	AC_DEFINE(MEMSCRAMBLE)
	317	fi
	318
	319	if test "$opt_minimal_config" = yes; then
	320	TESTSCRIPT=run-minimal
	321	else
	322	TESTSCRIPT=run-all
	323	fi
	324
	325	HELPDIR= HELPDIRDEFINE= HELPINSTALL=
	326	if test "$opt_separate_help" != no; then
	327	if test "$opt_separate_help" = "yes" ; then
	328	HELPDIR='${datadir}/bash'
	329	else
	330	HELPDIR=$opt_separate_help
	331	fi
	332	HELPDIRDEFINE='-H ${HELPDIR}'
	333	HELPINSTALL='install-help'
	334	fi
	335	HELPSTRINGS=
	336	if test "$opt_single_longdoc_strings" != "yes"; then
	337	HELPSTRINGS='-S'
	338	fi
	339
	340	dnl now substitute in the values generated by arguments
	341	AC_SUBST(TESTSCRIPT)
	342	AC_SUBST(PURIFY)
	343	AC_SUBST(MALLOC_TARGET)
	344	AC_SUBST(MALLOC_SRC)
	345
	346	AC_SUBST(MALLOC_LIB)
	347	AC_SUBST(MALLOC_LIBRARY)
	348	AC_SUBST(MALLOC_LDFLAGS)
	349	AC_SUBST(MALLOC_DEP)
	350
	351	AC_SUBST(htmldir)
	352
	353	AC_SUBST(HELPDIR)
	354	AC_SUBST(HELPDIRDEFINE)
	355	AC_SUBST(HELPINSTALL)
	356	AC_SUBST(HELPSTRINGS)
	357
	358	echo ""
	359	echo "Beginning configuration for bash-$BASHVERS-$RELSTATUS for ${host_cpu}-${host_vendor}-${host_os}"
	360	echo ""
	361
	362	dnl compilation checks
	363	dnl AC_PROG_CC sets $cross_compiling to `yes' if cross-compiling for a
	364	dnl different environment
	365	AC_PROG_CC
	366
	367	dnl test for Unix variants
	368	AC_ISC_POSIX
	369	AC_MINIX
	370
	371	AC_SYS_LARGEFILE
	372
	373	dnl BEGIN changes for cross-building (currently cygwin, minGW, and
	374	dnl (obsolete) BeOS)
	375
	376	SIGNAMES_H=lsignames.h
	377
	378	dnl load up the cross-building cache file -- add more cases and cache
	379	dnl files as necessary
	380
	381	dnl Note that host and target machine are the same, and different than the
	382	dnl build machine.
	383	dnl Set SIGNAMES_H based on whether or not we're cross-compiling.
	384
	385	if test "x$cross_compiling" = "xyes"; then
	386	case "${host}" in
	387	-cygwin)
	388	cross_cache=${srcdir}/cross-build/cygwin32.cache
	389	SIGNAMES_H='$(srcdir)/cross-build/win32sig.h'
	390	;;
	391	-mingw)
	392	cross_cache=${srcdir}/cross-build/cygwin32.cache
	393	;;
	394	i[[3456]]86--beos)
	395	cross_cache=${srcdir}/cross-build/x86-beos.cache
	396	SIGNAMES_H='${srcdir}/cross-build/beos-sig.h'
	397	;;
	398	*) echo "configure: cross-compiling for $host is not supported" >&2
	399	;;
	400	esac
	401	if test -n "${cross_cache}" && test -r "${cross_cache}"; then
	402	echo "loading cross-build cache file ${cross_cache}"
	403	. ${cross_cache}
	404	fi
	405	unset cross_cache
	406	CROSS_COMPILE='-DCROSS_COMPILING'
	407	AC_SUBST(CROSS_COMPILE)
	408	fi
	409	AC_SUBST(SIGNAMES_H)
	410
	411	if test -z "$CC_FOR_BUILD"; then
	412	if test "x$cross_compiling" = "xno"; then
	413	CC_FOR_BUILD='$(CC)'
	414	else
	415	CC_FOR_BUILD=gcc
	416	fi
	417	fi
	418	AC_SUBST(CC_FOR_BUILD)
	419
	420	dnl END changes for cross-building
	421
	422	dnl We want these before the checks, so the checks can modify their values.
	423	test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
	424
	425	dnl If we're using gcc and the user hasn't specified CFLAGS, add -O2 to CFLAGS.
	426	test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O2"
	427
	428	dnl handle options that alter how bash is compiled and linked
	429	dnl these must come after the test for cc/gcc
	430	if test "$opt_profiling" = "yes"; then
	431	PROFILE_FLAGS=-pg
	432	case "$host_os" in
	433	solaris2*) ;;
	434	*) opt_static_link=yes ;;
	435	esac
	436	DEBUG= MALLOC_DEBUG=
	437	fi
	438
	439	if test "$opt_static_link" = yes; then
	440	# if we're using gcc, add `-static' to LDFLAGS, except on Solaris >= 2
	441	if test -n "$GCC" \|\| test "$ac_cv_prog_gcc" = "yes"; then
	442	STATIC_LD="-static"
	443	case "$host_os" in
	444	solaris2*) ;;
	445	*) LDFLAGS="$LDFLAGS -static" ;; # XXX experimental
	446	esac
	447	fi
	448	fi
	449
	450	if test "X$cross_compiling" = "Xno"; then
	451	CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-"$CPPFLAGS"}
	452	LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-'$(LDFLAGS)'}
	453	else
	454	CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-""}
	455	LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-""}
	456	fi
	457
	458	test -z "$CFLAGS_FOR_BUILD" && CFLAGS_FOR_BUILD="-g"
	459
	460	AC_SUBST(CFLAGS)
	461	AC_SUBST(CPPFLAGS)
	462	AC_SUBST(LDFLAGS)
	463	AC_SUBST(STATIC_LD)
	464
	465	AC_SUBST(CFLAGS_FOR_BUILD)
	466	AC_SUBST(CPPFLAGS_FOR_BUILD)
	467	AC_SUBST(LDFLAGS_FOR_BUILD)
	468
	469	AC_PROG_GCC_TRADITIONAL
	470
	471	dnl BEGIN READLINE and HISTORY LIBRARY SECTION
	472	dnl prepare to allow bash to be linked against an already-installed readline
	473
	474	dnl first test that the readline version is new enough to link bash against
	475	if test "$opt_readline" = yes && test "$opt_with_installed_readline" != "no"
	476	then
	477	# If the user specified --with-installed-readline=PREFIX and PREFIX
	478	# is not `yes', set ac_cv_rl_prefix to PREFIX
	479	test $opt_with_installed_readline != "yes" && ac_cv_rl_prefix=$opt_with_installed_readline
	480
	481	RL_LIB_READLINE_VERSION
	482
	483	case "$ac_cv_rl_version" in
	484	5\|6\|7\|8\|9*) ;;
	485	*) opt_with_installed_readline=no
	486	AC_MSG_WARN(installed readline library is too old to be linked with bash)
	487	AC_MSG_WARN(using private bash version)
	488	;;
	489	esac
	490	fi
	491
	492	TILDE_LIB=-ltilde
	493	if test $opt_readline = yes; then
	494	AC_DEFINE(READLINE)
	495	if test "$opt_with_installed_readline" != "no" ; then
	496	case "$opt_with_installed_readline" in
	497	yes) RL_INCLUDE= ;;
	498	*) case "$RL_INCLUDEDIR" in
	499	/usr/include) ;;
	500	*) RL_INCLUDE='-I${RL_INCLUDEDIR}' ;;
	501	esac
	502	;;
	503	esac
	504	READLINE_DEP=
	505	READLINE_LIB=-lreadline
	506	# section for OS versions that don't allow unresolved symbols
	507	# to be compiled into dynamic libraries.
	508	case "$host_os" in
	509	cygwin*) TILDE_LIB= ;;
	510	esac
	511	else
	512	RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
	513	READLINE_DEP='$(READLINE_LIBRARY)'
	514	# section for OS versions that ship an older/broken version of
	515	# readline as a standard dynamic library and don't allow a
	516	# static version specified as -llibname to override the
	517	# dynamic version
	518	case "${host_os}" in
	519	darwin8*) READLINE_LIB='${READLINE_LIBRARY}' ;;
	520	*) READLINE_LIB=-lreadline ;;
	521	esac
	522	fi
	523	else
	524	RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
	525	READLINE_LIB= READLINE_DEP=
	526	fi
	527	if test $opt_history = yes \|\| test $opt_bang_history = yes; then
	528	if test $opt_history = yes; then
	529	AC_DEFINE(HISTORY)
	530	fi
	531	if test $opt_bang_history = yes; then
	532	AC_DEFINE(BANG_HISTORY)
	533	fi
	534	if test "$opt_with_installed_readline" != "no"; then
	535	HIST_LIBDIR=$RL_LIBDIR
	536	HISTORY_DEP=
	537	HISTORY_LIB=-lhistory
	538	case "$opt_with_installed_readline" in
	539	yes) RL_INCLUDE= ;;
	540	*) case "$RL_INCLUDEDIR" in
	541	/usr/include) ;;
	542	*) RL_INCLUDE='-I${RL_INCLUDEDIR}' ;;
	543	esac
	544	;;
	545	esac
	546	else
	547	HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
	548	HISTORY_DEP='$(HISTORY_LIBRARY)'
	549	# section for OS versions that ship an older version of
	550	# readline as a standard dynamic library and don't allow a
	551	# static version specified as -llibname to override the
	552	# dynamic version
	553	case "${host_os}" in
	554	darwin8*) HISTORY_LIB='${HISTORY_LIBRARY}' ;;
	555	*) HISTORY_LIB=-lhistory ;;
	556	esac
	557	fi
	558	else
	559	HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
	560	HISTORY_LIB= HISTORY_DEP=
	561	fi
	562	AC_SUBST(READLINE_LIB)
	563	AC_SUBST(READLINE_DEP)
	564	AC_SUBST(RL_LIBDIR)
	565	AC_SUBST(RL_INCLUDEDIR)
	566	AC_SUBST(RL_INCLUDE)
	567	AC_SUBST(HISTORY_LIB)
	568	AC_SUBST(HISTORY_DEP)
	569	AC_SUBST(HIST_LIBDIR)
	570	AC_SUBST(TILDE_LIB)
	571
	572	dnl END READLINE and HISTORY LIBRARY SECTION
	573
	574	dnl programs needed by the build and install process
	575	AC_PROG_INSTALL
	576	AC_CHECK_PROG(AR, ar, , ar)
	577	dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
	578	dnl This allows people to set it when running configure or make
	579	test -n "$ARFLAGS" \|\| ARFLAGS="cr"
	580	AC_PROG_RANLIB
	581	AC_PROG_YACC
	582	AC_PROG_MAKE_SET
	583
	584	case "$host_os" in
	585	opennt\|interix) MAKE_SHELL="$INTERIX_ROOT/bin/sh" ;;
	586	*) MAKE_SHELL=/bin/sh ;;
	587	esac
	588	AC_SUBST(MAKE_SHELL)
	589
	590	dnl this is similar to the expanded AC_PROG_RANLIB
	591	if test x$SIZE = x; then
	592	if test x$ac_tool_prefix = x; then
	593	SIZE=size
	594	else
	595	SIZE=${ac_tool_prefix}size
	596	save_IFS=$IFS ; IFS=:
	597	size_found=0
	598	for dir in $PATH; do
	599	if test -x $dir/$SIZE ; then
	600	size_found=1
	601	break
	602	fi
	603	done
	604	if test $size_found -eq 0; then
	605	SIZE=:
	606	fi
	607	IFS=$save_IFS
	608	fi
	609	fi
	610	AC_SUBST(SIZE)
	611
	612	dnl Turn on any extensions available in the GNU C library.
	613	AC_DEFINE(_GNU_SOURCE, 1)
	614
	615	dnl C compiler characteristics
	616	AC_C_CONST
	617	AC_C_INLINE
	618	AC_C_BIGENDIAN
	619	AC_C_STRINGIZE
	620	AC_C_LONG_DOUBLE
	621	AC_C_PROTOTYPES
	622	AC_C_CHAR_UNSIGNED
	623
	624	dnl initialize GNU gettext
	625	AM_GNU_GETTEXT([no-libtool], [need-ngettext], [lib/intl])
	626
	627	dnl header files
	628	AC_HEADER_DIRENT
	629	AC_HEADER_TIME
	630
	631	BASH_HEADER_INTTYPES
	632
	633	AC_CHECK_HEADERS(unistd.h stdlib.h stdarg.h varargs.h limits.h string.h \
	634	memory.h locale.h termcap.h termio.h termios.h dlfcn.h \
	635	stddef.h stdint.h netdb.h pwd.h grp.h strings.h regex.h)
	636	AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h \
	637	sys/resource.h sys/param.h sys/socket.h sys/stat.h \
	638	sys/time.h sys/times.h sys/types.h sys/wait.h)
	639	AC_CHECK_HEADERS(netinet/in.h arpa/inet.h)
	640
	641	dnl sys/ptem.h requires definitions from sys/stream.h on systems where it
	642	dnl exists
	643	AC_CHECK_HEADER(sys/ptem.h, , ,[[
	644	#if HAVE_SYS_STREAM_H
	645	# include <sys/stream.h>
	646	#endif
	647	]])
	648
	649	dnl special checks for libc functions
	650	AC_FUNC_ALLOCA
	651	AC_FUNC_GETPGRP
	652	AC_FUNC_SETVBUF_REVERSED
	653	AC_FUNC_VPRINTF
	654	AC_FUNC_STRCOLL
	655
	656	dnl if we're not using the bash malloc but require the C alloca, set things
	657	dnl up to build a libmalloc.a containing only alloca.o
	658
	659	if test "$ac_cv_func_alloca_works" = "no" && test "$opt_bash_malloc" = "no"; then
	660	MALLOC_TARGET=alloca
	661	MALLOC_SRC=alloca.c
	662
	663	MALLOC_LIB='-lmalloc'
	664	MALLOC_LIBRARY='$(ALLOC_LIBDIR)/libmalloc.a'
	665	MALLOC_LDFLAGS='-L$(ALLOC_LIBDIR)'
	666	MALLOC_DEP='$(MALLOC_LIBRARY)'
	667	fi
	668
	669	dnl if vprintf is not in libc, see if it's defined in stdio.h
	670	if test "$ac_cv_func_vprintf" = no; then
	671	AC_MSG_CHECKING(for declaration of vprintf in stdio.h)
	672	AC_EGREP_HEADER([[int[ ]*vprintf[^a-zA-Z0-9]]],stdio.h,ac_cv_func_vprintf=yes)
	673	AC_MSG_RESULT($ac_cv_func_vprintf)
	674	if test $ac_cv_func_vprintf = yes; then
	675	AC_DEFINE(HAVE_VPRINTF)
	676	fi
	677	fi
	678
	679	if test "$ac_cv_func_vprintf" = no && test "$ac_cv_func__doprnt" = "yes"; then
	680	AC_LIBOBJ(vprint)
	681	fi
	682
	683	dnl signal stuff
	684	AC_TYPE_SIGNAL
	685
	686	dnl checks for certain version-specific system calls and libc functions
	687	AC_CHECK_FUNC(__setostype, AC_DEFINE(HAVE_SETOSTYPE))
	688	AC_CHECK_FUNC(wait3, AC_DEFINE(HAVE_WAIT3))
	689	AC_CHECK_FUNC(isinf, AC_DEFINE(HAVE_ISINF_IN_LIBC))
	690
	691	dnl checks for missing libc functions
	692	AC_CHECK_FUNC(mkfifo,AC_DEFINE(HAVE_MKFIFO),AC_DEFINE(MKFIFO_MISSING))
	693
	694	dnl checks for system calls
	695	AC_CHECK_FUNCS(dup2 fcntl getdtablesize getgroups gethostname getpagesize \
	696	getpeername getrlimit getrusage gettimeofday kill killpg \
	697	lstat readlink sbrk select setdtablesize tcgetpgrp uname \
	698	ulimit waitpid)
	699	AC_REPLACE_FUNCS(rename)
	700
	701	dnl checks for c library functions
	702	AC_CHECK_FUNCS(bcopy bzero confstr fnmatch \
	703	getaddrinfo gethostbyname getservbyname getservent inet_aton \
	704	memmove pathconf putenv raise regcomp regexec \
	705	setenv setlinebuf setlocale setvbuf siginterrupt strchr \
	706	sysconf tcgetattr times ttyname tzset unsetenv)
	707
	708	AC_CHECK_FUNCS(vsnprintf snprintf vasprintf asprintf)
	709	AC_CHECK_FUNCS(isascii isblank isgraph isprint isspace isxdigit)
	710	AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
	711	AC_REPLACE_FUNCS(getcwd memset strcasecmp strerror strftime strnlen strpbrk strstr)
	712	AC_REPLACE_FUNCS(strtod strtol strtoul strtoll strtoull strtoimax strtoumax)
	713
	714	AC_CHECK_DECLS([confstr])
	715	AC_CHECK_DECLS([printf])
	716	AC_CHECK_DECLS([sbrk])
	717	AC_CHECK_DECLS([strcpy])
	718	AC_CHECK_DECLS([strsignal])
	719
	720	dnl Extra test to detect the horribly broken HP/UX 11.00 strtold(3)
	721	AC_CHECK_DECLS([strtold], [
	722	AC_MSG_CHECKING([for broken strtold])
	723	AC_CACHE_VAL(bash_cv_strtold_broken,
	724	[AC_TRY_COMPILE(
	725	[#include <stdlib.h>],
	726	[int main() { long double r; char *foo, bar; r = strtold(foo, &bar);}],
	727	bash_cv_strtold_broken=no, bash_cv_strtold_broken=yes,
	728	[AC_MSG_WARN(cannot check for broken strtold if cross-compiling, defaulting to no)])
	729	]
	730	)
	731	AC_MSG_RESULT($bash_cv_strtold_broken)
	732	if test "$bash_cv_strtold_broken" = "yes" ; then
	733	AC_DEFINE(STRTOLD_BROKEN)
	734	fi
	735	])
	736
	737
	738	BASH_CHECK_DECL(strtoimax)
	739	BASH_CHECK_DECL(strtol)
	740	BASH_CHECK_DECL(strtoll)
	741	BASH_CHECK_DECL(strtoul)
	742	BASH_CHECK_DECL(strtoull)
	743	BASH_CHECK_DECL(strtoumax)
	744
	745	AC_FUNC_MKTIME
	746
	747	dnl
	748	dnl Checks for lib/intl and related code (uses some of the output from
	749	dnl AM_GNU_GETTEXT)
	750	dnl
	751
	752	AC_CHECK_HEADERS([argz.h errno.h fcntl.h malloc.h stdio_ext.h])
	753
	754	dnl AC_FUNC_MALLOC
	755	AC_FUNC_MMAP
	756	AC_CHECK_FUNCS([__argz_count __argz_next __argz_stringify dcgettext mempcpy \
	757	munmap stpcpy strcspn strdup])
	758
	759	INTL_DEP= INTL_INC= LIBINTL_H=
	760	if test "x$USE_INCLUDED_LIBINTL" = "xyes"; then
	761	INTL_DEP='${INTL_LIBDIR}/libintl.a'
	762	INTL_INC='-I${INTL_LIBSRC} -I${INTL_BUILDDIR}'
	763	LIBINTL_H='${INTL_BUILDDIR}/libintl.h'
	764	fi
	765	AC_SUBST(INTL_DEP)
	766	AC_SUBST(INTL_INC)
	767	AC_SUBST(LIBINTL_H)
	768
	769	dnl
	770	dnl End of checks needed by files in lib/intl
	771	dnl
	772
	773	BASH_CHECK_MULTIBYTE
	774
	775	dnl checks for the dynamic loading library functions in libc and libdl
	776	if test "$opt_static_link" != yes; then
	777	AC_CHECK_LIB(dl, dlopen)
	778	AC_CHECK_FUNCS(dlopen dlclose dlsym)
	779	fi
	780
	781	dnl this defines SYS_SIGLIST_DECLARED
	782	AC_DECL_SYS_SIGLIST
	783
	784	dnl network functions -- check for inet_aton again
	785	if test "$ac_cv_func_inet_aton" != 'yes'; then
	786	BASH_FUNC_INET_ATON
	787	fi
	788
	789	dnl libraries
	790	dnl this is reportedly no longer necessary for irix[56].?
	791	case "$host_os" in
	792	irix4*) AC_CHECK_LIB(sun, getpwent) ;;
	793	esac
	794
	795	dnl check for getpeername in the socket library only if it's not in libc
	796	if test "$ac_cv_func_getpeername" = no; then
	797	BASH_CHECK_LIB_SOCKET
	798	fi
	799	dnl check for gethostbyname in socket libraries if it's not in libc
	800	if test "$ac_cv_func_gethostbyname" = no; then
	801	BASH_FUNC_GETHOSTBYNAME
	802	fi
	803
	804	dnl system types
	805	AC_TYPE_GETGROUPS
	806	AC_TYPE_OFF_T
	807	AC_TYPE_MODE_T
	808	AC_TYPE_UID_T
	809	AC_TYPE_PID_T
	810	AC_TYPE_SIZE_T
	811	AC_CHECK_TYPE(ssize_t, int)
	812	AC_CHECK_TYPE(time_t, long)
	813
	814	BASH_TYPE_LONG_LONG
	815	BASH_TYPE_UNSIGNED_LONG_LONG
	816
	817	AC_TYPE_SIGNAL
	818
	819	AC_CHECK_SIZEOF(char, 1)
	820	AC_CHECK_SIZEOF(short, 2)
	821	AC_CHECK_SIZEOF(int, 4)
	822	AC_CHECK_SIZEOF(long, 4)
	823	AC_CHECK_SIZEOF(char *, 4)
	824	AC_CHECK_SIZEOF(double, 8)
	825	AC_CHECK_SIZEOF([long long], 8)
	826
	827	AC_CHECK_TYPE(u_int, [unsigned int])
	828	AC_CHECK_TYPE(u_long, [unsigned long])
	829
	830	BASH_TYPE_BITS16_T
	831	BASH_TYPE_U_BITS16_T
	832	BASH_TYPE_BITS32_T
	833	BASH_TYPE_U_BITS32_T
	834	BASH_TYPE_BITS64_T
	835
	836	BASH_TYPE_PTRDIFF_T
	837
	838	dnl structures
	839	AC_HEADER_STAT
	840
	841	dnl system services
	842	AC_SYS_INTERPRETER
	843	if test $ac_cv_sys_interpreter = yes; then
	844	AC_DEFINE(HAVE_HASH_BANG_EXEC)
	845	fi
	846
	847	dnl Miscellaneous Bash tests
	848	if test "$ac_cv_func_lstat" = "no"; then
	849	BASH_FUNC_LSTAT
	850	fi
	851
	852	dnl behavior of system calls and library functions
	853	BASH_FUNC_CTYPE_NONASCII
	854	BASH_FUNC_DUP2_CLOEXEC_CHECK
	855	BASH_SYS_PGRP_SYNC
	856	BASH_SYS_SIGNAL_VINTAGE
	857
	858	dnl checking for the presence of certain library symbols
	859	BASH_SYS_ERRLIST
	860	BASH_SYS_SIGLIST
	861	BASH_UNDER_SYS_SIGLIST
	862
	863	dnl various system types
	864	BASH_TYPE_SIGHANDLER
	865	BASH_CHECK_TYPE(clock_t, [#include <sys/times.h>], long)
	866	BASH_CHECK_TYPE(sigset_t, [#include <signal.h>], int)
	867	BASH_CHECK_TYPE(quad_t, , long, HAVE_QUAD_T)
	868	BASH_CHECK_TYPE(intmax_t, , $bash_cv_type_long_long)
	869	BASH_CHECK_TYPE(uintmax_t, , $bash_cv_type_unsigned_long_long)
	870	if test "$ac_cv_header_sys_socket_h" = "yes"; then
	871	BASH_CHECK_TYPE(socklen_t, [#include <sys/socket.h>], int, HAVE_SOCKLEN_T)
	872	fi
	873	BASH_TYPE_RLIMIT
	874
	875	dnl presence and contents of structures used by system calls
	876	BASH_STRUCT_TERMIOS_LDISC
	877	BASH_STRUCT_TERMIO_LDISC
	878	BASH_STRUCT_DIRENT_D_INO
	879	BASH_STRUCT_DIRENT_D_FILENO
	880	BASH_STRUCT_DIRENT_D_NAMLEN
	881	BASH_STRUCT_WINSIZE
	882	BASH_STRUCT_TIMEVAL
	883	AC_CHECK_MEMBERS([struct stat.st_blocks])
	884	AC_STRUCT_TM
	885	AC_STRUCT_TIMEZONE
	886	BASH_STRUCT_TIMEZONE
	887
	888	dnl presence and behavior of C library functions
	889	BASH_FUNC_STRSIGNAL
	890	BASH_FUNC_OPENDIR_CHECK
	891	BASH_FUNC_ULIMIT_MAXFDS
	892	BASH_FUNC_GETENV
	893	if test "$ac_cv_func_getcwd" = "yes"; then
	894	BASH_FUNC_GETCWD
	895	fi
	896	BASH_FUNC_POSIX_SETJMP
	897	BASH_FUNC_STRCOLL
	898
	899	dnl If putenv or unsetenv is not present, set the right define so the
	900	dnl prototype and declaration in lib/sh/getenv.c will be standard-conformant
	901
	902	if test "$ac_cv_func_putenv" = "yes"; then
	903	BASH_FUNC_STD_PUTENV
	904	else
	905	AC_DEFINE(HAVE_STD_PUTENV)
	906	fi
	907	if test "$ac_cv_func_unsetenv" = "yes"; then
	908	BASH_FUNC_STD_UNSETENV
	909	else
	910	AC_DEFINE(HAVE_STD_UNSETENV)
	911	fi
	912
	913	BASH_FUNC_PRINTF_A_FORMAT
	914
	915	dnl presence and behavior of OS functions
	916	BASH_SYS_REINSTALL_SIGHANDLERS
	917	BASH_SYS_JOB_CONTROL_MISSING
	918	BASH_SYS_NAMED_PIPES
	919
	920	dnl presence of certain CPP defines
	921	AC_HEADER_TIOCGWINSZ
	922	BASH_HAVE_TIOCSTAT
	923	BASH_HAVE_FIONREAD
	924
	925	BASH_CHECK_WCONTINUED
	926
	927	dnl miscellaneous
	928	BASH_CHECK_SPEED_T
	929	BASH_CHECK_GETPW_FUNCS
	930	BASH_CHECK_RTSIGS
	931	BASH_CHECK_SYS_SIGLIST
	932
	933	dnl special checks
	934	case "$host_os" in
	935	hpux*) BASH_CHECK_KERNEL_RLIMIT ;;
	936	esac
	937
	938	if test "$opt_readline" = yes; then
	939	dnl yuck
	940	case "$host_os" in
	941	aix*) prefer_curses=yes ;;
	942	esac
	943	BASH_CHECK_LIB_TERMCAP
	944	fi
	945	AC_SUBST(TERMCAP_LIB)
	946	AC_SUBST(TERMCAP_DEP)
	947
	948	BASH_CHECK_DEV_FD
	949	BASH_CHECK_DEV_STDIN
	950	BASH_SYS_DEFAULT_MAIL_DIR
	951
	952	if test "$bash_cv_job_control_missing" = missing; then
	953	opt_job_control=no
	954	fi
	955
	956	if test "$opt_job_control" = yes; then
	957	AC_DEFINE(JOB_CONTROL)
	958	JOBS_O=jobs.o
	959	else
	960	JOBS_O=nojobs.o
	961	fi
	962
	963	AC_SUBST(JOBS_O)
	964
	965	dnl Defines that we want to propagate to the Makefiles in subdirectories,
	966	dnl like glob and readline
	967
	968	LOCAL_DEFS=-DSHELL
	969
	970	dnl use this section to possibly define more cpp variables, specify local
	971	dnl libraries, and specify any additional local cc flags
	972	dnl
	973	dnl this should really go away someday
	974
	975	case "${host_os}" in
	976	sysv4.2*) AC_DEFINE(SVR4_2)
	977	AC_DEFINE(SVR4) ;;
	978	sysv4*) AC_DEFINE(SVR4) ;;
	979	sysv5*) AC_DEFINE(SVR5) ;;
	980	hpux9*) LOCAL_CFLAGS="-DHPUX9 -DHPUX" ;;
	981	hpux*) LOCAL_CFLAGS=-DHPUX ;;
	982	dgux*) LOCAL_CFLAGS=-D_DGUX_SOURCE; LOCAL_LIBS=-ldgc ;;
	983	isc*) LOCAL_CFLAGS=-Disc386 ;;
	984	rhapsody*) LOCAL_CFLAGS=-DRHAPSODY ;;
	985	darwin*) LOCAL_CFLAGS=-DMACOSX ;;
	986	sco3.2v5*) LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DPATH_MAX=1024" ;;
	987	sco3.2v4*) LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DPATH_MAX=1024" ;;
	988	sco3.2*) LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
	989	sunos4*) LOCAL_CFLAGS=-DSunOS4 ;;
	990	solaris2.5*) LOCAL_CFLAGS=-DSunOS5 ;;
	991	lynxos*) LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
	992	linux*) LOCAL_LDFLAGS=-rdynamic # allow dynamic loading
	993	case "`uname -r`" in
	994	2.[[456789]]\|3) AC_DEFINE(PGRP_PIPE) ;;
	995	esac ;;
	996	qnx6) LOCAL_CFLAGS="-Dqnx -Dqnx6" LOCAL_LIBS="-lncurses" ;;
	997	qnx) LOCAL_CFLAGS="-Dqnx -F -3s" LOCAL_LDFLAGS="-3s" LOCAL_LIBS="-lunix -lncurses" ;;
	998	powerux*) LOCAL_LIBS="-lgen" ;;
	999	cygwin*) LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
	1000	opennt\|interix) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG -DBROKEN_DIRENT_D_INO -D_POSIX_SOURCE" ;;
	1001	esac
	1002
	1003	dnl Stanza for OS/compiler pair-specific flags
	1004	case "${host_os}-${CC}" in
	1005	aix4.2-gcc*) LOCAL_LDFLAGS="-Xlinker -bexpall -Xlinker -brtl" ;;
	1006	aix4.2*) LOCAL_LDFLAGS="-bexpall -brtl" ;;
	1007	bsdi4-gcc*) LOCAL_LDFLAGS="-rdynamic" ;; # allow dynamic loading, like Linux
	1008	esac
	1009
	1010	dnl FreeBSD-3.x can have either a.out or ELF
	1011	case "${host_os}" in
	1012	freebsd[[3-9]]*)
	1013	if test -x /usr/bin/objformat && test "`/usr/bin/objformat`" = "elf" ; then
	1014	LOCAL_LDFLAGS=-rdynamic # allow dynamic loading
	1015	fi ;;
	1016	freebsdelf*) LOCAL_LDFLAGS=-rdynamic ;; # allow dynamic loading
	1017	dragonfly*) LOCAL_LDFLAGS=-rdynamic ;; # allow dynamic loading
	1018	esac
	1019
	1020	case "$host_cpu" in
	1021	cray) LOCAL_CFLAGS="-DCRAY" ;; # shell var so config.h can use it
	1022	esac
	1023
	1024	case "$host_cpu-$host_os" in
	1025	ibmrt-bsd4) LOCAL_CFLAGS="-ma -U__STDC__" ;;
	1026	esac
	1027
	1028	case "$host_cpu-$host_vendor-$host_os" in
	1029	m88k-motorola-sysv3) LOCAL_CFLAGS=-DWAITPID_BROKEN ;;
	1030	mips-pyramid-sysv4) LOCAL_CFLAGS=-Xa ;;
	1031	esac
	1032
	1033	#
	1034	# Shared object configuration section. These values are generated by
	1035	# ${srcdir}/support/shobj-conf
	1036	#
	1037	if test "$ac_cv_func_dlopen" = "yes" && test -f ${srcdir}/support/shobj-conf
	1038	then
	1039	AC_MSG_CHECKING(shared object configuration for loadable builtins)
	1040	eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c "${host_cpu}" -o "${host_os}" -v "${host_vendor}"`
	1041	AC_SUBST(SHOBJ_CC)
	1042	AC_SUBST(SHOBJ_CFLAGS)
	1043	AC_SUBST(SHOBJ_LD)
	1044	AC_SUBST(SHOBJ_LDFLAGS)
	1045	AC_SUBST(SHOBJ_XLDFLAGS)
	1046	AC_SUBST(SHOBJ_LIBS)
	1047	AC_SUBST(SHOBJ_STATUS)
	1048	AC_MSG_RESULT($SHOBJ_STATUS)
	1049	fi
	1050
	1051	# try to create a directory tree if the source is elsewhere
	1052	# this should be packaged into a script accessible via ${srcdir}/support
	1053	case "$srcdir" in
	1054	.) ;;
	1055	*) for d in doc tests support lib examples; do # dirs
	1056	test -d $d \|\| mkdir $d
	1057	done
	1058	for ld in readline glob tilde malloc sh termcap; do # libdirs
	1059	test -d lib/$ld \|\| mkdir lib/$ld
	1060	done
	1061	test -d examples/loadables \|\| mkdir examples/loadables # loadable builtins
	1062	test -d examples/loadables/perl \|\| mkdir examples/loadables/perl
	1063	;;
	1064	esac
	1065
	1066	BUILD_DIR=`pwd`
	1067	case "$BUILD_DIR" in
	1068	\ ) BUILD_DIR=`echo "$BUILD_DIR" \| sed 's: :\\\\ :g'` ;;
	1069	*) ;;
	1070	esac
	1071
	1072	AC_SUBST(PROFILE_FLAGS)
	1073
	1074	AC_SUBST(incdir)
	1075	AC_SUBST(BUILD_DIR)
	1076
	1077	AC_SUBST(YACC)
	1078	AC_SUBST(AR)
	1079	AC_SUBST(ARFLAGS)
	1080
	1081	AC_SUBST(BASHVERS)
	1082	AC_SUBST(RELSTATUS)
	1083	AC_SUBST(DEBUG)
	1084	AC_SUBST(MALLOC_DEBUG)
	1085
	1086	AC_SUBST(host_cpu)
	1087	AC_SUBST(host_vendor)
	1088	AC_SUBST(host_os)
	1089
	1090	AC_SUBST(LOCAL_LIBS)
	1091	AC_SUBST(LOCAL_CFLAGS)
	1092	AC_SUBST(LOCAL_LDFLAGS)
	1093	AC_SUBST(LOCAL_DEFS)
	1094
	1095	#AC_SUBST(ALLOCA_SOURCE)
	1096	#AC_SUBST(ALLOCA_OBJECT)
	1097
	1098	AC_OUTPUT([Makefile builtins/Makefile lib/readline/Makefile lib/glob/Makefile \
	1099	lib/intl/Makefile \
	1100	lib/malloc/Makefile lib/sh/Makefile lib/termcap/Makefile \
	1101	lib/tilde/Makefile doc/Makefile support/Makefile po/Makefile.in \
	1102	examples/loadables/Makefile examples/loadables/perl/Makefile \
	1103	pathnames.h],
	1104	[
	1105	# Makefile uses this timestamp file to record whether config.h is up to date.
	1106	echo timestamp > stamp-h
	1107	])

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