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
27m4_include([../config/override.m4])
28
29AC_INIT(readline, 5.1-release, bug-readline@gnu.org)
30
31dnl make sure we are using a recent autoconf version
32AC_PREREQ(2.50)
33
34AC_CONFIG_SRCDIR(readline.h)
35dnl GDB LOCAL
36dnl AC_CONFIG_AUX_DIR(./support)
37AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
38AC_CONFIG_HEADERS(config.h)
39
40dnl update the value of RL_READLINE_VERSION in readline.h when this changes
41LIBVERSION=5.1
42
43AC_CANONICAL_HOST
44
45dnl configure defaults
46opt_curses=no
47opt_purify=no
48
49dnl arguments to configure
50AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
51AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)
52
53if test "$opt_curses" = "yes"; then
54	prefer_curses=yes
55fi
56
57if test "$opt_purify" = yes; then
58	PURIFY="purify"
59else
60	PURIFY=
61fi
62
63dnl option parsing for optional features
64opt_multibyte=yes
65opt_static_libs=yes
66opt_shared_libs=no
67
68AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
69dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
70AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
71
72if test $opt_multibyte = no; then
73AC_DEFINE(NO_MULTIBYTE_SUPPORT)
74fi
75
76dnl load up the cross-building cache file -- add more cases and cache
77dnl files as necessary
78
79dnl Note that host and target machine are the same, and different than the
80dnl build machine.
81
82CROSS_COMPILE=
83if test "x$cross_compiling" = "xyes"; then
84    case "${host}" in
85    *-cygwin*)
86        cross_cache=${srcdir}/cross-build/cygwin.cache
87        ;;
88    *-mingw*)
89        cross_cache=${srcdir}/cross-build/mingw.cache
90        ;;
91    i[[3456]]86-*-beos*)
92        cross_cache=${srcdir}/cross-build/x86-beos.cache
93        ;;
94    *)  echo "configure: cross-compiling for $host is not supported" >&2
95        ;;
96    esac
97    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
98        echo "loading cross-build cache file ${cross_cache}"
99        . ${cross_cache}
100    fi
101    unset cross_cache
102    CROSS_COMPILE='-DCROSS_COMPILING'
103    AC_SUBST(CROSS_COMPILE)
104fi
105
106echo ""
107echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
108echo ""
109
110# We want these before the checks, so the checks can modify their values.
111test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
112
113AC_PROG_MAKE_SET
114AC_PROG_CC
115dnl AC_AIX
116AC_MINIX
117
118dnl BEGIN changes for CYGNUS cross-building for Cygwin
119dnl NOTE: Some of these changes may no longer be necessary.
120
121dnl load up the cross-building cache file -- add more cases and cache
122dnl files as necessary
123if test "x$cross_compiling" = "xyes"; then
124    case "${host}" in
125    *-cygwin*)
126	cross_cache=${srcdir}/cross-build/cygwin.cache
127	LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
128	;;
129   *-mingw32*)
130	cross_cache=${srcdir}/cross-build/mingw.cache
131        ;;
132    *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
133	;;
134    esac
135
136    if test "x$cross_cache" != "x"; then
137	if test -r "${cross_cache}"; then
138	    echo "loading cross-build cache file ${cross_cache}"
139	    . ${cross_cache}
140	fi
141	unset cross_cache
142    fi
143fi
144
145if test -z "$CC_FOR_BUILD"; then
146    if test "x$cross_compiling" = "xno"; then
147        CC_FOR_BUILD='$(CC)'
148    else
149        CC_FOR_BUILD=gcc
150    fi
151fi
152AC_SUBST(CC_FOR_BUILD)
153
154dnl END changes for CYGNUS cross-building for Cygwin
155
156# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
157test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
158
159AC_PROG_GCC_TRADITIONAL
160AC_PROG_INSTALL
161AC_CHECK_PROG(AR, ar, , ar)
162dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
163dnl This allows people to set it when running configure or make
164test -n "$ARFLAGS" || ARFLAGS="cr"
165AC_PROG_RANLIB
166
167MAKE_SHELL=/bin/sh
168AC_SUBST(MAKE_SHELL)
169
170AC_C_CONST
171AC_C_PROTOTYPES
172AC_C_CHAR_UNSIGNED
173
174AC_TYPE_SIGNAL
175
176AC_TYPE_SIZE_T
177AC_CHECK_TYPE(ssize_t, int)
178
179AC_HEADER_STDC
180
181AC_HEADER_STAT
182AC_HEADER_DIRENT
183
184AC_CHECK_FUNCS(fcntl kill lstat)
185AC_CHECK_FUNCS(memmove putenv select setenv setlocale \
186		strcasecmp strpbrk tcgetattr vsnprintf)
187AC_CHECK_FUNCS(isascii isxdigit)
188AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
189
190AC_FUNC_STRCOLL
191
192AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
193		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
194AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h)
195
196AC_CHECK_HEADERS(sys/ptem.h,,,
197[[
198#if HAVE_SYS_STREAM_H
199#  include <sys/stream.h>
200#endif
201]])
202
203BASH_SYS_SIGNAL_VINTAGE
204BASH_SYS_REINSTALL_SIGHANDLERS
205
206BASH_FUNC_POSIX_SETJMP
207BASH_FUNC_LSTAT
208BASH_FUNC_STRCOLL
209BASH_FUNC_CTYPE_NONASCII
210
211BASH_CHECK_GETPW_FUNCS
212
213AC_HEADER_TIOCGWINSZ
214
215BASH_TYPE_SIGHANDLER
216BASH_HAVE_TIOCSTAT
217BASH_HAVE_FIONREAD
218BASH_CHECK_SPEED_T
219BASH_STRUCT_WINSIZE
220BASH_STRUCT_DIRENT_D_INO
221BASH_STRUCT_DIRENT_D_FILENO
222
223dnl yuck
224case "$host_os" in
225aix*)   prefer_curses=yes ;;
226esac
227BASH_CHECK_LIB_TERMCAP
228if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
229	if test "$prefer_curses" = yes; then
230		TERMCAP_LIB=-lcurses
231	else
232		TERMCAP_LIB=-ltermcap	#default
233	fi
234fi
235
236BASH_CHECK_MULTIBYTE
237
238case "$host_cpu" in
239*cray*)	LOCAL_CFLAGS=-DCRAY ;;
240*s390*) LOCAL_CFLAGS=-fsigned-char ;;
241esac
242
243case "$host_os" in
244isc*)	LOCAL_CFLAGS=-Disc386 ;;
245esac
246
247# shared library configuration section
248#
249# Shared object configuration section.  These values are generated by
250# ${srcdir}/support/shobj-conf
251#
252if test -f ${srcdir}/support/shobj-conf; then
253        AC_MSG_CHECKING(configuration for building shared libraries)
254        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
255
256#	case "$SHLIB_LIBS" in
257#	*curses*|*termcap*|*termlib*)	;;
258#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
259#	esac
260
261        AC_SUBST(SHOBJ_CC)
262        AC_SUBST(SHOBJ_CFLAGS)
263        AC_SUBST(SHOBJ_LD)
264        AC_SUBST(SHOBJ_LDFLAGS)
265	AC_SUBST(SHOBJ_XLDFLAGS)
266        AC_SUBST(SHOBJ_LIBS)
267        AC_SUBST(SHOBJ_STATUS)
268	AC_SUBST(SHLIB_STATUS)
269	AC_SUBST(SHLIB_XLDFLAGS)
270	AC_SUBST(SHLIB_DOT)
271	AC_SUBST(SHLIB_LIBPREF)
272	AC_SUBST(SHLIB_LIBSUFF)
273	AC_SUBST(SHLIB_LIBVERSION)
274	AC_SUBST(SHLIB_DLLVERSION)
275	AC_SUBST(SHLIB_LIBS)
276        AC_MSG_RESULT($SHLIB_STATUS)
277
278	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
279	# `unsupported', turn off any default shared library building
280	if test "$SHLIB_STATUS" = 'unsupported'; then
281		opt_shared_libs=no
282	fi
283
284	# shared library versioning
285	# quoted for m4 so I can use character classes
286	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
287	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
288	AC_SUBST(SHLIB_MAJOR)
289	AC_SUBST(SHLIB_MINOR)
290fi
291
292if test "$opt_static_libs" = "yes"; then
293	STATIC_TARGET=static
294	STATIC_INSTALL_TARGET=install-static
295fi
296if test "$opt_shared_libs" = "yes"; then
297	SHARED_TARGET=shared
298	SHARED_INSTALL_TARGET=install-shared
299fi
300
301AC_SUBST(STATIC_TARGET)
302AC_SUBST(SHARED_TARGET)
303AC_SUBST(STATIC_INSTALL_TARGET)
304AC_SUBST(SHARED_INSTALL_TARGET)
305
306case "$host_os" in
307msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
308*)		BUILD_DIR=`pwd` ;;
309esac
310
311case "$BUILD_DIR" in
312*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
313*)	;;
314esac
315
316AC_SUBST(PURIFY)
317AC_SUBST(BUILD_DIR)
318
319AC_SUBST(CFLAGS)
320AC_SUBST(LOCAL_CFLAGS)
321AC_SUBST(LOCAL_LDFLAGS)
322AC_SUBST(LOCAL_DEFS)
323
324AC_SUBST(AR)
325AC_SUBST(ARFLAGS)
326
327AC_SUBST(host_cpu)
328AC_SUBST(host_os)
329
330AC_SUBST(LIBVERSION)
331
332AC_SUBST(TERMCAP_LIB)
333
334AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
335[
336# Makefile uses this timestamp file to record whether config.h is up to date.
337echo > stamp-h
338])
339