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.
7 AC_REVISION([for Readline 4.3, version 2.45, from autoconf version] AC_ACVERSION)
9 AC_INIT(readline, 4.3, bug-readline@gnu.org)
11 dnl make sure we are using a recent autoconf version
14 AC_CONFIG_SRCDIR(readline.h)
15 dnl AC_CONFIG_AUX_DIR(./support)
16 AC_CONFIG_HEADERS(config.h)
18 dnl update the value of RL_READLINE_VERSION in readline.h when this changes
23 dnl configure defaults
26 dnl arguments to configure
27 AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
29 if test "$opt_curses" = "yes"; then
33 dnl option parsing for optional features
37 AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
38 AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
41 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
44 # We want these before the checks, so the checks can modify their values.
45 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
52 dnl BEGIN changes for CYGNUS cross-building for Cygwin
54 dnl load up the cross-building cache file -- add more cases and cache
55 dnl files as necessary
56 if test "x$cross_compiling" = "xyes"; then
59 cross_cache=${srcdir}/cross-build/cygwin.cache
60 if test -r "${cross_cache}"; then
61 echo "loading cross-build cache file ${cross_cache}"
64 LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
67 *) echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
72 if test "x$cross_compiling" = "xyes"; then
73 CROSS_COMPILING_FLAG=-DCROSS_COMPILING
77 AC_SUBST(CROSS_COMPILING_FLAG)
79 if test -z "$CC_FOR_BUILD"; then
80 if test "x$cross_compiling" = "xno"; then
86 AC_SUBST(CC_FOR_BUILD)
88 dnl END changes for CYGNUS cross-building for Cygwin
90 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
91 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
93 AC_PROG_GCC_TRADITIONAL
95 AC_CHECK_PROG(AR, ar, , ar)
96 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
97 dnl This allows people to set it when running configure or make
98 test -n "$ARFLAGS" || ARFLAGS="cr"
111 AC_CHECK_TYPE(ssize_t, int)
116 AC_CHECK_FUNCS(lstat memmove putenv select setenv setlocale \
117 strcasecmp strpbrk tcgetattr vsnprintf isascii isxdigit)
121 AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
122 limits.h sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
123 termcap.h termios.h termio.h sys/file.h locale.h memory.h )
125 BASH_SYS_SIGNAL_VINTAGE
126 BASH_SYS_REINSTALL_SIGHANDLERS
128 BASH_FUNC_POSIX_SETJMP
132 BASH_CHECK_GETPW_FUNCS
141 BASH_STRUCT_DIRENT_D_INO
142 BASH_STRUCT_DIRENT_D_FILENO
146 aix*) prefer_curses=yes ;;
148 BASH_CHECK_LIB_TERMCAP
149 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
150 if test "$prefer_curses" = yes; then
153 TERMCAP_LIB=-ltermcap #default
160 *cray*) LOCAL_CFLAGS=-DCRAY ;;
161 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
165 isc*) LOCAL_CFLAGS=-Disc386 ;;
168 # shared library configuration section
170 # Shared object configuration section. These values are generated by
171 # ${srcdir}/support/shobj-conf
173 if test -f ${srcdir}/support/shobj-conf; then
174 AC_MSG_CHECKING(configuration for building shared libraries)
175 eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
177 AC_SUBST(SHOBJ_CFLAGS)
179 AC_SUBST(SHOBJ_LDFLAGS)
180 AC_SUBST(SHOBJ_XLDFLAGS)
182 AC_SUBST(SHOBJ_STATUS)
183 AC_SUBST(SHLIB_STATUS)
184 AC_SUBST(SHLIB_XLDFLAGS)
185 AC_SUBST(SHLIB_LIBSUFF)
186 AC_SUBST(SHLIB_LIBVERSION)
188 AC_MSG_RESULT($SHLIB_STATUS)
190 # SHLIB_STATUS is either `supported' or `unsupported'. If it's
191 # `unsupported', turn off any default shared library building
192 if test "$SHLIB_STATUS" = 'unsupported'; then
196 # shared library versioning
197 # quoted for m4 so I can use character classes
198 SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
199 SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
200 AC_SUBST(SHLIB_MAJOR)
201 AC_SUBST(SHLIB_MINOR)
204 if test "$opt_static_libs" = "yes"; then
206 STATIC_INSTALL_TARGET=install-static
208 if test "$opt_shared_libs" = "yes"; then
210 SHARED_INSTALL_TARGET=install-shared
213 AC_SUBST(STATIC_TARGET)
214 AC_SUBST(SHARED_TARGET)
215 AC_SUBST(STATIC_INSTALL_TARGET)
216 AC_SUBST(SHARED_INSTALL_TARGET)
219 msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
220 *) BUILD_DIR=`pwd` ;;
226 AC_SUBST(LOCAL_CFLAGS)
227 AC_SUBST(LOCAL_LDFLAGS)
238 AC_SUBST(TERMCAP_LIB)
240 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
242 # Makefile uses this timestamp file to record whether config.h is up to date.