2 dnl Configure script for readline library
4 dnl report bugs to chet@po.cwru.edu
6 dnl Process this file with autoconf to produce a configure script.
8 # Copyright (C) 1987-2018 Free Software Foundation, Inc.
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.
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.
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/>.
23 AC_REVISION([for Readline 8.0, version 2.85])
25 m4_include([../../config/override.m4])
27 AC_INIT(readline, 8.0, bug-readline@gnu.org)
29 dnl make sure we are using a recent autoconf version
32 AC_CONFIG_SRCDIR(readline.h)
34 dnl AC_CONFIG_AUX_DIR(./support)
35 AC_CONFIG_AUX_DIR(../..)
36 AC_CONFIG_HEADERS(config.h)
38 dnl update the value of RL_READLINE_VERSION in readline.h when this changes
44 dnl configure defaults
47 dnl arguments to configure
48 AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
50 if test "$opt_curses" = "yes"; then
54 dnl option parsing for optional features
58 opt_install_examples=no
60 AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
61 dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
62 AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
63 AC_ARG_ENABLE(install-examples, AC_HELP_STRING([--disable-install-examples], [don't install examples [[default=install]]]), opt_install_examples=$enableval)
65 if test $opt_multibyte = no; then
66 AC_DEFINE(NO_MULTIBYTE_SUPPORT)
69 dnl load up the cross-building cache file -- add more cases and cache
70 dnl files as necessary
72 dnl Note that host and target machine are the same, and different than the
76 if test "x$cross_compiling" = "xyes"; then
79 cross_cache=${srcdir}/cross-build/cygwin.cache
82 cross_cache=${srcdir}/cross-build/mingw.cache
85 cross_cache=${srcdir}/cross-build/x86-beos.cache
87 *) echo "configure: cross-compiling for $host is not supported" >&2
90 if test -n "${cross_cache}" && test -r "${cross_cache}"; then
91 echo "loading cross-build cache file ${cross_cache}"
95 CROSS_COMPILE='-DCROSS_COMPILING'
96 AC_SUBST(CROSS_COMPILE)
100 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
103 # We want these before the checks, so the checks can modify their values.
104 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
111 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
112 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
114 AC_PROG_GCC_TRADITIONAL
116 AC_CHECK_TOOL(AR, ar)
117 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
118 dnl This allows people to set it when running configure or make
119 test -n "$ARFLAGS" || ARFLAGS="cr"
133 AC_CHECK_TYPE(ssize_t, int)
140 AC_CHECK_FUNCS(fcntl kill lstat readlink)
141 AC_CHECK_FUNCS(fnmatch memmove pselect putenv select setenv setlocale \
142 strcasecmp strpbrk tcgetattr vsnprintf)
143 AC_CHECK_FUNCS(isascii isxdigit)
144 AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
149 AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h stdbool.h \
151 limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
152 AC_CHECK_HEADERS(sys/ioctl.h sys/pte.h sys/stream.h sys/select.h sys/file.h)
154 AC_CHECK_HEADERS(sys/ptem.h,,,
156 #if HAVE_SYS_STREAM_H
157 # include <sys/stream.h>
163 BASH_SYS_SIGNAL_VINTAGE
164 BASH_SYS_REINSTALL_SIGHANDLERS
166 BASH_FUNC_POSIX_SETJMP
169 BASH_FUNC_CTYPE_NONASCII
171 BASH_CHECK_GETPW_FUNCS
175 BASH_TYPE_SIG_ATOMIC_T
182 BASH_STRUCT_DIRENT_D_INO
183 BASH_STRUCT_DIRENT_D_FILENO
185 AC_CHECK_HEADERS(libaudit.h)
186 AC_CHECK_DECLS([AUDIT_USER_TTY],,, [[#include <linux/audit.h>]])
190 aix*) prefer_curses=yes ;;
192 BASH_CHECK_LIB_TERMCAP
193 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
194 if test "$prefer_curses" = yes; then
197 TERMCAP_LIB=-ltermcap #default
200 # Windows ncurses installation
201 if test "$TERMCAP_LIB" = "-lncurses"; then
202 AC_CHECK_HEADERS(ncurses/termcap.h)
205 case "$TERMCAP_LIB" in
206 -ltinfo) TERMCAP_PKG_CONFIG_LIB=tinfo ;;
207 -lcurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
208 -lncurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
209 -ltermcap) TERMCAP_PKG_CONFIG_LIB=termcap ;;
210 *) TERMCAP_PKG_CONFIG_LIB=termcap ;;
216 *cray*) LOCAL_CFLAGS=-DCRAY ;;
217 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
221 isc*) LOCAL_CFLAGS=-Disc386 ;;
224 # shared library configuration section
226 # Shared object configuration section. These values are generated by
227 # ${srcdir}/support/shobj-conf
229 if test -f ${srcdir}/support/shobj-conf; then
230 AC_MSG_CHECKING(configuration for building shared libraries)
231 eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
233 # case "$SHLIB_LIBS" in
234 # *curses*|*termcap*|*termlib*) ;;
235 # *) SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
239 AC_SUBST(SHOBJ_CFLAGS)
241 AC_SUBST(SHOBJ_LDFLAGS)
242 AC_SUBST(SHOBJ_XLDFLAGS)
244 AC_SUBST(SHOBJ_STATUS)
245 AC_SUBST(SHLIB_STATUS)
246 AC_SUBST(SHLIB_XLDFLAGS)
248 AC_SUBST(SHLIB_LIBPREF)
249 AC_SUBST(SHLIB_LIBSUFF)
250 AC_SUBST(SHLIB_LIBVERSION)
251 AC_SUBST(SHLIB_DLLVERSION)
253 AC_MSG_RESULT($SHLIB_STATUS)
255 # SHLIB_STATUS is either `supported' or `unsupported'. If it's
256 # `unsupported', turn off any default shared library building
257 if test "$SHLIB_STATUS" = 'unsupported'; then
261 # shared library versioning
262 # quoted for m4 so I can use character classes
263 SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
264 SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
265 AC_SUBST(SHLIB_MAJOR)
266 AC_SUBST(SHLIB_MINOR)
269 if test "$opt_static_libs" = "yes"; then
271 STATIC_INSTALL_TARGET=install-static
273 if test "$opt_shared_libs" = "yes"; then
275 SHARED_INSTALL_TARGET=install-shared
278 AC_SUBST(STATIC_TARGET)
279 AC_SUBST(SHARED_TARGET)
280 AC_SUBST(STATIC_INSTALL_TARGET)
281 AC_SUBST(SHARED_INSTALL_TARGET)
283 if test "$opt_install_examples" = "yes"; then
284 EXAMPLES_INSTALL_TARGET=install-examples
286 AC_SUBST(EXAMPLES_INSTALL_TARGET)
289 msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
290 *) BUILD_DIR=`pwd` ;;
294 *\ *) BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
301 AC_SUBST(LOCAL_CFLAGS)
302 AC_SUBST(LOCAL_LDFLAGS)
313 AC_SUBST(TERMCAP_LIB)
314 AC_SUBST(TERMCAP_PKG_CONFIG_LIB)
316 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
318 # Makefile uses this timestamp file to record whether config.h is up to date.