From Martin Simmons:
[external/binutils.git] / readline / configure.in
1 dnl
2 dnl Configure script for readline library
3 dnl
4 dnl report bugs to chet@po.cwru.edu
5 dnl
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)
8
9 AC_INIT(readline, 4.3, bug-readline@gnu.org)
10
11 dnl make sure we are using a recent autoconf version
12 AC_PREREQ(2.50)
13
14 AC_CONFIG_SRCDIR(readline.h)
15 dnl AC_CONFIG_AUX_DIR(./support)
16 AC_CONFIG_HEADERS(config.h)
17
18 dnl update the value of RL_READLINE_VERSION in readline.h when this changes
19 LIBVERSION=4.3
20
21 AC_CANONICAL_HOST
22
23 dnl configure defaults
24 opt_curses=no
25
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=$withval)
28
29 if test "$opt_curses" = "yes"; then
30         prefer_curses=yes
31 fi
32
33 dnl option parsing for optional features
34 opt_static_libs=yes
35 opt_shared_libs=no
36
37 AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
38
39 echo ""
40 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
41 echo ""
42
43 # We want these before the checks, so the checks can modify their values.
44 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
45
46 AC_PROG_MAKE_SET
47 AC_PROG_CC
48 dnl AC_AIX
49 AC_MINIX
50
51 dnl BEGIN changes for CYGNUS cross-building for Cygwin
52  
53 dnl load up the cross-building cache file -- add more cases and cache
54 dnl files as necessary
55 if test "x$cross_compiling" = "xyes"; then
56     case "${host}" in
57     *-cygwin*)
58         cross_cache=${srcdir}/cross-build/cygwin.cache
59         LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
60         ;;
61    *-mingw32*)  
62         cross_cache=${srcdir}/cross-build/mingw.cache
63         ;;
64     *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
65         ;;
66     esac
67
68     if test "x$cross_cache" != "x"; then
69         if test -r "${cross_cache}"; then
70             echo "loading cross-build cache file ${cross_cache}"
71             . ${cross_cache}
72         fi
73         unset cross_cache
74     fi
75 fi
76  
77 if test "x$cross_compiling" = "xyes"; then
78   CROSS_COMPILING_FLAG=-DCROSS_COMPILING
79 else
80   CROSS_COMPILING_FLAG=
81 fi
82 AC_SUBST(CROSS_COMPILING_FLAG)
83  
84 if test -z "$CC_FOR_BUILD"; then
85     if test "x$cross_compiling" = "xno"; then
86         CC_FOR_BUILD='$(CC)'
87     else
88         CC_FOR_BUILD=gcc
89     fi
90 fi
91 AC_SUBST(CC_FOR_BUILD)
92  
93 dnl END changes for CYGNUS cross-building for Cygwin
94
95 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
96 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
97
98 AC_PROG_GCC_TRADITIONAL
99 AC_PROG_INSTALL
100 AC_CHECK_PROG(AR, ar, , ar)
101 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
102 dnl This allows people to set it when running configure or make
103 test -n "$ARFLAGS" || ARFLAGS="cr"
104 AC_PROG_RANLIB
105
106 MAKE_SHELL=/bin/sh
107 AC_SUBST(MAKE_SHELL)
108
109 AC_C_CONST
110 AC_C_PROTOTYPES
111 AC_C_CHAR_UNSIGNED
112
113 AC_TYPE_SIGNAL
114
115 AC_TYPE_SIZE_T
116 AC_CHECK_TYPE(ssize_t, int)
117
118 AC_HEADER_STAT
119 AC_HEADER_DIRENT
120
121 AC_CHECK_FUNCS(fcntl kill lstat memmove putenv select setenv setlocale \
122                strcasecmp strpbrk tcgetattr vsnprintf isascii isxdigit \
123                getpwnam getpwent getpwuid)
124
125 AC_FUNC_STRCOLL
126
127 AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
128                 limits.h sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
129                 termcap.h termios.h termio.h sys/file.h locale.h memory.h \
130                 pwd.h)
131
132 BASH_SYS_SIGNAL_VINTAGE
133 BASH_SYS_REINSTALL_SIGHANDLERS
134
135 BASH_FUNC_POSIX_SETJMP
136 BASH_FUNC_LSTAT
137 BASH_FUNC_STRCOLL
138
139 BASH_CHECK_GETPW_FUNCS
140
141 AC_HEADER_TIOCGWINSZ
142
143 BASH_TYPE_SIGHANDLER
144 BASH_HAVE_TIOCSTAT
145 BASH_HAVE_FIONREAD
146 BASH_CHECK_SPEED_T
147 BASH_STRUCT_WINSIZE
148 BASH_STRUCT_DIRENT_D_INO
149 BASH_STRUCT_DIRENT_D_FILENO
150
151 dnl yuck
152 case "$host_os" in
153 aix*)   prefer_curses=yes ;;
154 esac
155 BASH_CHECK_LIB_TERMCAP
156 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
157         if test "$prefer_curses" = yes; then
158                 TERMCAP_LIB=-lcurses
159         else
160                 TERMCAP_LIB=-ltermcap   #default
161         fi
162 fi
163
164 BASH_CHECK_MULTIBYTE
165
166 case "$host_cpu" in
167 *cray*) LOCAL_CFLAGS=-DCRAY ;;
168 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
169 esac
170
171 case "$host_os" in
172 isc*)   LOCAL_CFLAGS=-Disc386 ;;
173 esac
174
175 # shared library configuration section
176 #
177 # Shared object configuration section.  These values are generated by
178 # ${srcdir}/support/shobj-conf
179 #
180 if test -f ${srcdir}/support/shobj-conf; then
181         AC_MSG_CHECKING(configuration for building shared libraries)
182         eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
183         AC_SUBST(SHOBJ_CC)
184         AC_SUBST(SHOBJ_CFLAGS)
185         AC_SUBST(SHOBJ_LD)
186         AC_SUBST(SHOBJ_LDFLAGS)
187         AC_SUBST(SHOBJ_XLDFLAGS)
188         AC_SUBST(SHOBJ_LIBS)
189         AC_SUBST(SHOBJ_STATUS)
190         AC_SUBST(SHLIB_STATUS)
191         AC_SUBST(SHLIB_XLDFLAGS)
192         AC_SUBST(SHLIB_LIBSUFF)
193         AC_SUBST(SHLIB_LIBVERSION)
194         AC_SUBST(SHLIB_LIBS)
195         AC_MSG_RESULT($SHLIB_STATUS)
196
197         # SHLIB_STATUS is either `supported' or `unsupported'.  If it's
198         # `unsupported', turn off any default shared library building
199         if test "$SHLIB_STATUS" = 'unsupported'; then
200                 opt_shared_libs=no
201         fi
202
203         # shared library versioning
204         # quoted for m4 so I can use character classes
205         SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
206         SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
207         AC_SUBST(SHLIB_MAJOR)
208         AC_SUBST(SHLIB_MINOR)
209 fi
210
211 if test "$opt_static_libs" = "yes"; then
212         STATIC_TARGET=static
213         STATIC_INSTALL_TARGET=install-static
214 fi
215 if test "$opt_shared_libs" = "yes"; then
216         SHARED_TARGET=shared
217         SHARED_INSTALL_TARGET=install-shared
218 fi
219
220 AC_SUBST(STATIC_TARGET)
221 AC_SUBST(SHARED_TARGET)
222 AC_SUBST(STATIC_INSTALL_TARGET)
223 AC_SUBST(SHARED_INSTALL_TARGET)
224
225 case "$host_os" in
226 msdosdjgpp*)    BUILD_DIR=`pwd.exe` ;;  # to prevent //d/path/file
227 *)              BUILD_DIR=`pwd` ;;
228 esac
229
230 AC_SUBST(BUILD_DIR)
231
232 AC_SUBST(CFLAGS)
233 AC_SUBST(LOCAL_CFLAGS)
234 AC_SUBST(LOCAL_LDFLAGS)
235 AC_SUBST(LOCAL_DEFS)
236
237 AC_SUBST(AR)
238 AC_SUBST(ARFLAGS)
239
240 AC_SUBST(host_cpu)
241 AC_SUBST(host_os)
242
243 AC_SUBST(LIBVERSION)
244
245 AC_SUBST(TERMCAP_LIB)
246
247 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
248 [
249 # Makefile uses this timestamp file to record whether config.h is up to date.
250 echo > stamp-h
251 ])