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[pf3gnuchains/sourceware.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 4.1, version 2.22, from autoconf version] AC_ACVERSION)
8 LIBVERSION=4.1
9
10 AC_INIT(readline.h)
11 AC_CONFIG_HEADER(config.h)
12
13 dnl make sure we are using a recent autoconf version
14 AC_PREREQ(2.10)
15
16 dnl AC_CONFIG_AUX_DIR(./support)
17
18 AC_CANONICAL_HOST
19
20 dnl configure defaults
21 opt_curses=no
22 opt_shared=no
23
24 dnl arguments to configure
25 AC_ARG_WITH(curses, --with-curses               use the curses library instead of the termcap library,opt_curses=$withval)
26
27 if test "$opt_curses" = "yes"; then
28         prefer_curses=yes
29 fi
30
31 # We want these before the checks, so the checks can modify their values.
32 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
33
34 AC_PROG_CC
35 dnl AC_AIX
36 AC_MINIX
37
38 dnl BEGIN changes for CYGNUS cross-building for Cygwin
39  
40 dnl load up the cross-building cache file -- add more cases and cache
41 dnl files as necessary
42 if test "x$cross_compiling" = "xyes"; then
43     case "${host}" in
44     *-cygwin*)
45         cross_cache=${srcdir}/cross-build/cygwin.cache
46         if test -r "${cross_cache}"; then
47             echo "loading cross-build cache file ${cross_cache}"
48             . ${cross_cache}
49         fi
50         LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
51         unset cross_cache
52         ;;
53     *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
54         ;;
55     esac
56 fi
57  
58 if test "x$cross_compiling" = "xyes"; then
59   CROSS_COMPILING_FLAG=-DCROSS_COMPILING
60 else
61   CROSS_COMPILING_FLAG=
62 fi
63 AC_SUBST(CROSS_COMPILING_FLAG)
64  
65 if test -z "$CC_FOR_BUILD"; then
66     if test "x$cross_compiling" = "xno"; then
67         CC_FOR_BUILD='$(CC)'
68     else
69         CC_FOR_BUILD=gcc
70     fi
71 fi
72 AC_SUBST(CC_FOR_BUILD)
73  
74 dnl END changes for CYGNUS cross-building for Cygwin
75
76 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
77 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
78
79 AC_PROG_GCC_TRADITIONAL
80 AC_PROG_INSTALL
81 AC_CHECK_PROG(AR, ar, ar)
82 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
83 dnl This allows people to set it when running configure or make
84 test -n "$ARFLAGS" || ARFLAGS="cr"
85 AC_PROG_RANLIB
86
87 MAKE_SHELL=/bin/sh
88 AC_SUBST(MAKE_SHELL)
89
90 AC_RETSIGTYPE
91
92 AC_HEADER_STAT
93 AC_HEADER_DIRENT
94
95 AC_CHECK_FUNCS(lstat memmove putenv select setenv setlocale \
96                 strcasecmp tcgetattr)
97
98 AC_FUNC_STRCOLL
99
100 AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h \
101                 sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
102                 termcap.h termios.h termio.h sys/file.h locale.h)
103
104 BASH_SIGNAL_CHECK
105 BASH_REINSTALL_SIGHANDLERS
106
107 BASH_FUNC_POSIX_SETJMP
108 BASH_FUNC_LSTAT
109 BASH_CHECK_GETPW_FUNCS
110 BASH_FUNC_STRCOLL
111
112 BASH_TYPE_SIGHANDLER
113 BASH_HAVE_TIOCGWINSZ
114 BASH_HAVE_TIOCSTAT
115 BASH_HAVE_FIONREAD
116 BASH_MISC_SPEED_T
117 BASH_STRUCT_WINSIZE
118 BASH_STRUCT_DIRENT_D_INO
119 BASH_STRUCT_DIRENT_D_FILENO
120
121 dnl yuck
122 case "$host_os" in
123 aix*)   prefer_curses=yes ;;
124 esac
125 BASH_CHECK_LIB_TERMCAP
126 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
127         TERMCAP_LIB=-ltermcap   #default
128 fi
129
130 case "$host_cpu" in
131 *cray*) LOCAL_CFLAGS=-DCRAY ;;
132 esac
133
134 case "$host_os" in
135 isc*)   LOCAL_CFLAGS=-Disc386 ;;
136 esac
137
138 # shared library configuration section
139 #
140 # Shared object configuration section.  These values are generated by
141 # ${srcdir}/support/shobj-conf
142 #
143 if test -f ${srcdir}/support/shobj-conf; then
144         AC_MSG_CHECKING(configuration for building shared libraries)
145         eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
146         AC_SUBST(SHOBJ_CC)
147         AC_SUBST(SHOBJ_CFLAGS)
148         AC_SUBST(SHOBJ_LD)
149         AC_SUBST(SHOBJ_LDFLAGS)
150         AC_SUBST(SHOBJ_XLDFLAGS)
151         AC_SUBST(SHOBJ_LIBS)
152         AC_SUBST(SHOBJ_STATUS)
153         AC_SUBST(SHLIB_STATUS)
154         AC_SUBST(SHLIB_XLDFLAGS)
155         AC_SUBST(SHLIB_LIBSUFF)
156         AC_SUBST(SHLIB_LIBVERSION)
157         AC_SUBST(SHLIB_LIBS)
158         AC_MSG_RESULT($SHLIB_STATUS)
159
160         # shared library versioning
161         # quoted for m4 so I can use character classes
162         SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
163         SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
164         AC_SUBST(SHLIB_MAJOR)
165         AC_SUBST(SHLIB_MINOR)
166 fi
167
168 case "$host_os" in
169 msdosdjgpp*)    BUILD_DIR=`pwd.exe` ;;  # to prevent //d/path/file
170 *)              BUILD_DIR=`pwd` ;;
171 esac
172
173 AC_SUBST(BUILD_DIR)
174
175 AC_SUBST(CFLAGS)
176 AC_SUBST(LOCAL_CFLAGS)
177 AC_SUBST(LOCAL_LDFLAGS)
178 AC_SUBST(LOCAL_DEFS)
179
180 AC_SUBST(AR)
181 AC_SUBST(ARFLAGS)
182
183 AC_SUBST(host_cpu)
184 AC_SUBST(host_os)
185
186 AC_SUBST(LIBVERSION)
187
188 AC_SUBST(TERMCAP_LIB)
189
190 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
191 [
192 # Makefile uses this timestamp file to record whether config.h is up to date.
193 echo > stamp-h
194 ])