1dnl
2dnl Configure script for readline library
3dnl
4dnl report bugs to chet@po.cwru.edu
5dnl
6dnl 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
25AC_REVISION([for Readline 5.1, version 2.59])
26
27AC_INIT(readline, 5.1-release, bug-readline@gnu.org)
28
29dnl make sure we are using a recent autoconf version
30AC_PREREQ(2.50)
31
32AC_CONFIG_SRCDIR(readline.h)
33dnl GDB LOCAL
34dnl AC_CONFIG_AUX_DIR(./support)
35AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
36AC_CONFIG_HEADERS(config.h)
37
38dnl update the value of RL_READLINE_VERSION in readline.h when this changes
39LIBVERSION=5.1
40
41AC_CANONICAL_HOST
42
43dnl configure defaults
44opt_curses=no
45opt_purify=no
46
47dnl arguments to configure
48AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
49AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)
50
51if test "$opt_curses" = "yes"; then
52	prefer_curses=yes
53fi
54
55if test "$opt_purify" = yes; then
56	PURIFY="purify"
57else
58	PURIFY=
59fi
60
61dnl option parsing for optional features
62opt_multibyte=yes
63opt_static_libs=yes
64opt_shared_libs=no
65
66AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
67dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
68AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
69
70if test $opt_multibyte = no; then
71AC_DEFINE(NO_MULTIBYTE_SUPPORT)
72fi
73
74dnl load up the cross-building cache file -- add more cases and cache
75dnl files as necessary
76
77dnl Note that host and target machine are the same, and different than the
78dnl build machine.
79
80CROSS_COMPILE=
81if test "x$cross_compiling" = "xyes"; then
82    case "${host}" in
83    *-cygwin*)
84        cross_cache=${srcdir}/cross-build/cygwin.cache
85        ;;
86    *-mingw*)
87        cross_cache=${srcdir}/cross-build/mingw.cache
88        ;;
89    i[[3456]]86-*-beos*)
90        cross_cache=${srcdir}/cross-build/x86-beos.cache
91        ;;
92    *)  echo "configure: cross-compiling for $host is not supported" >&2
93        ;;
94    esac
95    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
96        echo "loading cross-build cache file ${cross_cache}"
97        . ${cross_cache}
98    fi
99    unset cross_cache
100    CROSS_COMPILE='-DCROSS_COMPILING'
101    AC_SUBST(CROSS_COMPILE)
102fi
103
104echo ""
105echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
106echo ""
107
108# We want these before the checks, so the checks can modify their values.
109test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
110
111AC_PROG_MAKE_SET
112AC_PROG_CC
113dnl AC_AIX
114AC_MINIX
115
116dnl BEGIN changes for CYGNUS cross-building for Cygwin
117dnl NOTE: Some of these changes may no longer be necessary.
118
119dnl load up the cross-building cache file -- add more cases and cache
120dnl files as necessary
121if test "x$cross_compiling" = "xyes"; then
122    case "${host}" in
123    *-cygwin*)
124	cross_cache=${srcdir}/cross-build/cygwin.cache
125	LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
126	;;
127   *-mingw32*)	
128	cross_cache=${srcdir}/cross-build/mingw.cache
129        ;;
130    *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
131	;;
132    esac
133
134    if test "x$cross_cache" != "x"; then
135	if test -r "${cross_cache}"; then
136	    echo "loading cross-build cache file ${cross_cache}"
137	    . ${cross_cache}
138	fi
139	unset cross_cache
140    fi
141fi
142
143if test -z "$CC_FOR_BUILD"; then
144    if test "x$cross_compiling" = "xno"; then
145        CC_FOR_BUILD='$(CC)'
146    else
147        CC_FOR_BUILD=gcc
148    fi
149fi
150AC_SUBST(CC_FOR_BUILD)
151 
152dnl END changes for CYGNUS cross-building for Cygwin
153
154# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
155test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
156
157AC_PROG_GCC_TRADITIONAL
158AC_PROG_INSTALL
159AC_CHECK_PROG(AR, ar, , ar)
160dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
161dnl This allows people to set it when running configure or make
162test -n "$ARFLAGS" || ARFLAGS="cr"
163AC_PROG_RANLIB
164
165MAKE_SHELL=/bin/sh
166AC_SUBST(MAKE_SHELL)
167
168AC_C_CONST
169AC_C_PROTOTYPES
170AC_C_CHAR_UNSIGNED
171
172AC_TYPE_SIGNAL
173
174AC_TYPE_SIZE_T
175AC_CHECK_TYPE(ssize_t, int)
176
177AC_HEADER_STDC
178
179AC_HEADER_STAT
180AC_HEADER_DIRENT
181
182AC_CHECK_FUNCS(fcntl kill lstat)
183AC_CHECK_FUNCS(memmove putenv select setenv setlocale \
184		strcasecmp strpbrk tcgetattr vsnprintf)
185AC_CHECK_FUNCS(isascii isxdigit)
186AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
187
188AC_FUNC_STRCOLL
189
190AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
191		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
192AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h)
193
194AC_CHECK_HEADERS(sys/ptem.h,,,
195[[
196#if HAVE_SYS_STREAM_H
197#  include <sys/stream.h>
198#endif
199]])
200
201BASH_SYS_SIGNAL_VINTAGE
202BASH_SYS_REINSTALL_SIGHANDLERS
203
204BASH_FUNC_POSIX_SETJMP
205BASH_FUNC_LSTAT
206BASH_FUNC_STRCOLL
207BASH_FUNC_CTYPE_NONASCII
208
209BASH_CHECK_GETPW_FUNCS
210
211AC_HEADER_TIOCGWINSZ
212
213BASH_TYPE_SIGHANDLER
214BASH_HAVE_TIOCSTAT
215BASH_HAVE_FIONREAD
216BASH_CHECK_SPEED_T
217BASH_STRUCT_WINSIZE
218BASH_STRUCT_DIRENT_D_INO
219BASH_STRUCT_DIRENT_D_FILENO
220
221dnl yuck
222case "$host_os" in
223aix*)   prefer_curses=yes ;;
224esac
225BASH_CHECK_LIB_TERMCAP
226if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
227	if test "$prefer_curses" = yes; then
228		TERMCAP_LIB=-lcurses
229	else
230		TERMCAP_LIB=-ltermcap	#default
231	fi
232fi
233
234BASH_CHECK_MULTIBYTE
235
236case "$host_cpu" in
237*cray*)	LOCAL_CFLAGS=-DCRAY ;;
238*s390*) LOCAL_CFLAGS=-fsigned-char ;;
239esac
240
241case "$host_os" in
242isc*)	LOCAL_CFLAGS=-Disc386 ;;
243esac
244
245# shared library configuration section
246#
247# Shared object configuration section.  These values are generated by
248# ${srcdir}/support/shobj-conf
249#
250if test -f ${srcdir}/support/shobj-conf; then
251        AC_MSG_CHECKING(configuration for building shared libraries)
252        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
253
254#	case "$SHLIB_LIBS" in
255#	*curses*|*termcap*|*termlib*)	;;
256#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
257#	esac
258	
259        AC_SUBST(SHOBJ_CC)
260        AC_SUBST(SHOBJ_CFLAGS)
261        AC_SUBST(SHOBJ_LD)
262        AC_SUBST(SHOBJ_LDFLAGS)
263	AC_SUBST(SHOBJ_XLDFLAGS)
264        AC_SUBST(SHOBJ_LIBS)
265        AC_SUBST(SHOBJ_STATUS)
266	AC_SUBST(SHLIB_STATUS)
267	AC_SUBST(SHLIB_XLDFLAGS)
268	AC_SUBST(SHLIB_DOT)
269	AC_SUBST(SHLIB_LIBPREF)
270	AC_SUBST(SHLIB_LIBSUFF)
271	AC_SUBST(SHLIB_LIBVERSION)
272	AC_SUBST(SHLIB_DLLVERSION)
273	AC_SUBST(SHLIB_LIBS)
274        AC_MSG_RESULT($SHLIB_STATUS)
275
276	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
277	# `unsupported', turn off any default shared library building
278	if test "$SHLIB_STATUS" = 'unsupported'; then
279		opt_shared_libs=no
280	fi
281
282	# shared library versioning
283	# quoted for m4 so I can use character classes
284	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
285	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
286	AC_SUBST(SHLIB_MAJOR)
287	AC_SUBST(SHLIB_MINOR)
288fi
289
290if test "$opt_static_libs" = "yes"; then
291	STATIC_TARGET=static
292	STATIC_INSTALL_TARGET=install-static
293fi
294if test "$opt_shared_libs" = "yes"; then
295	SHARED_TARGET=shared
296	SHARED_INSTALL_TARGET=install-shared
297fi
298
299AC_SUBST(STATIC_TARGET)
300AC_SUBST(SHARED_TARGET)
301AC_SUBST(STATIC_INSTALL_TARGET)
302AC_SUBST(SHARED_INSTALL_TARGET)
303
304case "$host_os" in
305msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
306*)		BUILD_DIR=`pwd` ;;
307esac
308
309case "$BUILD_DIR" in
310*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
311*)	;;
312esac
313
314AC_SUBST(PURIFY)
315AC_SUBST(BUILD_DIR)
316
317AC_SUBST(CFLAGS)
318AC_SUBST(LOCAL_CFLAGS)
319AC_SUBST(LOCAL_LDFLAGS)
320AC_SUBST(LOCAL_DEFS)
321
322AC_SUBST(AR)
323AC_SUBST(ARFLAGS)
324
325AC_SUBST(host_cpu)
326AC_SUBST(host_os)
327
328AC_SUBST(LIBVERSION)
329
330AC_SUBST(TERMCAP_LIB)
331
332AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
333[
334# Makefile uses this timestamp file to record whether config.h is up to date.
335echo > stamp-h
336])
337