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) 1987-2009 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 3 of the License, or
13#   (at your option) 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, see <http://www.gnu.org/licenses/>.
22
23AC_REVISION([for Readline 6.2, version 2.67])
24
25m4_include([../config/override.m4])
26
27AC_INIT(readline, 6.2, 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 $srcdir;pwd`/..)
36AC_CONFIG_HEADERS(config.h)
37
38dnl update the value of RL_READLINE_VERSION in readline.h when this changes
39LIBVERSION=6.2
40
41AC_CANONICAL_HOST
42
43dnl configure defaults
44opt_curses=no
45opt_purify=no
46
47dnl arguments to configure
48AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$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
116# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
117test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
118
119AC_PROG_GCC_TRADITIONAL
120AC_PROG_INSTALL
121AC_CHECK_PROG(AR, ar, , ar)
122dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
123dnl This allows people to set it when running configure or make
124test -n "$ARFLAGS" || ARFLAGS="cr"
125AC_PROG_RANLIB
126
127MAKE_SHELL=/bin/sh
128AC_SUBST(MAKE_SHELL)
129
130AC_C_CONST
131AC_C_PROTOTYPES
132AC_C_CHAR_UNSIGNED
133AC_C_VOLATILE
134
135AC_TYPE_SIGNAL
136
137AC_TYPE_SIZE_T
138AC_CHECK_TYPE(ssize_t, int)
139
140AC_HEADER_STDC
141
142AC_HEADER_STAT
143AC_HEADER_DIRENT
144
145AC_CHECK_FUNCS(fcntl kill lstat)
146AC_CHECK_FUNCS(memmove putenv select setenv setlocale \
147		strcasecmp strpbrk tcgetattr vsnprintf)
148AC_CHECK_FUNCS(isascii isxdigit)
149AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
150
151AC_FUNC_STRCOLL
152
153AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
154		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
155AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h)
156
157AC_CHECK_HEADERS(sys/ptem.h,,,
158[[
159#if HAVE_SYS_STREAM_H
160#  include <sys/stream.h>
161#endif
162]])
163
164AC_SYS_LARGEFILE
165
166BASH_SYS_SIGNAL_VINTAGE
167BASH_SYS_REINSTALL_SIGHANDLERS
168
169BASH_FUNC_POSIX_SETJMP
170BASH_FUNC_LSTAT
171BASH_FUNC_STRCOLL
172BASH_FUNC_CTYPE_NONASCII
173
174BASH_CHECK_GETPW_FUNCS
175
176AC_HEADER_TIOCGWINSZ
177
178BASH_TYPE_SIG_ATOMIC_T
179BASH_TYPE_SIGHANDLER
180
181BASH_HAVE_TIOCSTAT
182BASH_HAVE_FIONREAD
183BASH_CHECK_SPEED_T
184BASH_STRUCT_WINSIZE
185BASH_STRUCT_DIRENT_D_INO
186BASH_STRUCT_DIRENT_D_FILENO
187
188dnl yuck
189case "$host_os" in
190aix*)   prefer_curses=yes ;;
191esac
192BASH_CHECK_LIB_TERMCAP
193if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
194	if test "$prefer_curses" = yes; then
195		TERMCAP_LIB=-lcurses
196	else
197		TERMCAP_LIB=-ltermcap	#default
198	fi
199fi
200
201BASH_CHECK_MULTIBYTE
202
203case "$host_cpu" in
204*cray*)	LOCAL_CFLAGS=-DCRAY ;;
205*s390*) LOCAL_CFLAGS=-fsigned-char ;;
206esac
207
208case "$host_os" in
209isc*)	LOCAL_CFLAGS=-Disc386 ;;
210esac
211
212# shared library configuration section
213#
214# Shared object configuration section.  These values are generated by
215# ${srcdir}/support/shobj-conf
216#
217if test -f ${srcdir}/support/shobj-conf; then
218        AC_MSG_CHECKING(configuration for building shared libraries)
219        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
220
221#	case "$SHLIB_LIBS" in
222#	*curses*|*termcap*|*termlib*)	;;
223#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
224#	esac
225
226        AC_SUBST(SHOBJ_CC)
227        AC_SUBST(SHOBJ_CFLAGS)
228        AC_SUBST(SHOBJ_LD)
229        AC_SUBST(SHOBJ_LDFLAGS)
230	AC_SUBST(SHOBJ_XLDFLAGS)
231        AC_SUBST(SHOBJ_LIBS)
232        AC_SUBST(SHOBJ_STATUS)
233	AC_SUBST(SHLIB_STATUS)
234	AC_SUBST(SHLIB_XLDFLAGS)
235	AC_SUBST(SHLIB_DOT)
236	AC_SUBST(SHLIB_LIBPREF)
237	AC_SUBST(SHLIB_LIBSUFF)
238	AC_SUBST(SHLIB_LIBVERSION)
239	AC_SUBST(SHLIB_DLLVERSION)
240	AC_SUBST(SHLIB_LIBS)
241        AC_MSG_RESULT($SHLIB_STATUS)
242
243	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
244	# `unsupported', turn off any default shared library building
245	if test "$SHLIB_STATUS" = 'unsupported'; then
246		opt_shared_libs=no
247	fi
248
249	# shared library versioning
250	# quoted for m4 so I can use character classes
251	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
252	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
253	AC_SUBST(SHLIB_MAJOR)
254	AC_SUBST(SHLIB_MINOR)
255fi
256
257if test "$opt_static_libs" = "yes"; then
258	STATIC_TARGET=static
259	STATIC_INSTALL_TARGET=install-static
260fi
261if test "$opt_shared_libs" = "yes"; then
262	SHARED_TARGET=shared
263	SHARED_INSTALL_TARGET=install-shared
264fi
265
266AC_SUBST(STATIC_TARGET)
267AC_SUBST(SHARED_TARGET)
268AC_SUBST(STATIC_INSTALL_TARGET)
269AC_SUBST(SHARED_INSTALL_TARGET)
270
271case "$host_os" in
272msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
273*)		BUILD_DIR=`pwd` ;;
274esac
275
276case "$BUILD_DIR" in
277*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
278*)	;;
279esac
280
281AC_SUBST(PURIFY)
282AC_SUBST(BUILD_DIR)
283
284AC_SUBST(CFLAGS)
285AC_SUBST(LOCAL_CFLAGS)
286AC_SUBST(LOCAL_LDFLAGS)
287AC_SUBST(LOCAL_DEFS)
288
289AC_SUBST(AR)
290AC_SUBST(ARFLAGS)
291
292AC_SUBST(host_cpu)
293AC_SUBST(host_os)
294
295AC_SUBST(LIBVERSION)
296
297AC_SUBST(TERMCAP_LIB)
298
299AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
300[
301# Makefile uses this timestamp file to record whether config.h is up to date.
302echo > stamp-h
303])
304