readline/configure.ac

   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
   8 # Copyright (C) 1987-2016 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 3 of the License, or
  13 #   (at your option) 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, see <http://www.gnu.org/licenses/>.
  22
  23 AC_REVISION([for Readline 7.0, version 2.81])
  24
  25 m4_include([../config/override.m4])
  26
  27 AC_INIT(readline, 7.0, bug-readline@gnu.org)
  28
  29 dnl make sure we are using a recent autoconf version
  30 AC_PREREQ(2.50)
  31
  32 AC_CONFIG_SRCDIR(readline.h)
  33 dnl GDB LOCAL
  34 dnl AC_CONFIG_AUX_DIR(./support)
  35 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
  36 AC_CONFIG_HEADERS(config.h)
  37
  38 dnl update the value of RL_READLINE_VERSION in readline.h when this changes
  39 LIBVERSION=7.0
  40
  41 AC_CANONICAL_HOST
  42 AC_CANONICAL_BUILD
  43
  44 dnl configure defaults
  45 opt_curses=no
  46
  47 dnl arguments to configure
  48 AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
  49
  50 if test "$opt_curses" = "yes"; then
  51         prefer_curses=yes
  52 fi
  53
  54 dnl option parsing for optional features
  55 opt_multibyte=yes
  56 opt_static_libs=yes
  57 opt_shared_libs=no
  58
  59 AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
  60 dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
  61 AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
  62
  63 if test $opt_multibyte = no; then
  64 AC_DEFINE(NO_MULTIBYTE_SUPPORT)
  65 fi
  66
  67 dnl load up the cross-building cache file -- add more cases and cache
  68 dnl files as necessary
  69
  70 dnl Note that host and target machine are the same, and different than the
  71 dnl build machine.
  72
  73 CROSS_COMPILE=
  74 if test "x$cross_compiling" = "xyes"; then
  75     case "${host}" in
  76     *-cygwin*)
  77         cross_cache=${srcdir}/cross-build/cygwin.cache
  78         ;;
  79     *-mingw*)
  80         cross_cache=${srcdir}/cross-build/mingw.cache
  81         ;;
  82     i[[3456]]86-*-beos*)
  83         cross_cache=${srcdir}/cross-build/x86-beos.cache
  84         ;;
  85     *)  echo "configure: cross-compiling for $host is not supported" >&2
  86         ;;
  87     esac
  88     if test -n "${cross_cache}" && test -r "${cross_cache}"; then
  89         echo "loading cross-build cache file ${cross_cache}"
  90         . ${cross_cache}
  91     fi
  92     unset cross_cache
  93     CROSS_COMPILE='-DCROSS_COMPILING'
  94     AC_SUBST(CROSS_COMPILE)
  95 fi
  96
  97 echo ""
  98 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
  99 echo ""
 100
 101 # We want these before the checks, so the checks can modify their values.
 102 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
 103
 104 AC_PROG_MAKE_SET
 105 AC_PROG_CC
 106 dnl AC_AIX
 107 AC_MINIX
 108
 109 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
 110 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
 111
 112 AC_PROG_GCC_TRADITIONAL
 113 AC_PROG_INSTALL
 114 AC_CHECK_TOOL(AR, ar)
 115 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
 116 dnl This allows people to set it when running configure or make
 117 test -n "$ARFLAGS" || ARFLAGS="cr"
 118 AC_PROG_RANLIB
 119
 120 MAKE_SHELL=/bin/sh
 121 AC_SUBST(MAKE_SHELL)
 122
 123 AC_C_CONST
 124 AC_C_PROTOTYPES
 125 AC_C_CHAR_UNSIGNED
 126 AC_C_VOLATILE
 127
 128 AC_TYPE_SIGNAL
 129
 130 AC_TYPE_SIZE_T
 131 AC_CHECK_TYPE(ssize_t, int)
 132
 133 AC_HEADER_STDC
 134
 135 AC_HEADER_STAT
 136 AC_HEADER_DIRENT
 137
 138 AC_CHECK_FUNCS(fcntl kill lstat readlink)
 139 AC_CHECK_FUNCS(memmove pselect putenv select setenv setlocale \
 140                 strcasecmp strpbrk tcgetattr vsnprintf)
 141 AC_CHECK_FUNCS(isascii isxdigit)
 142 AC_CHECK_FUNCS(getpwent getpwnam getpwuid)
 143
 144 AC_FUNC_CHOWN
 145 AC_FUNC_STRCOLL
 146
 147 AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h stdbool.h \
 148                 string.h strings.h \
 149                 limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)
 150 AC_CHECK_HEADERS(sys/ioctl.h sys/pte.h sys/stream.h sys/select.h sys/file.h)
 151
 152 AC_CHECK_HEADERS(sys/ptem.h,,,
 153 [[
 154 #if HAVE_SYS_STREAM_H
 155 #  include <sys/stream.h>
 156 #endif
 157 ]])
 158
 159 AC_SYS_LARGEFILE
 160
 161 BASH_SYS_SIGNAL_VINTAGE
 162 BASH_SYS_REINSTALL_SIGHANDLERS
 163
 164 BASH_FUNC_POSIX_SETJMP
 165 BASH_FUNC_LSTAT
 166 BASH_FUNC_STRCOLL
 167 BASH_FUNC_CTYPE_NONASCII
 168
 169 BASH_CHECK_GETPW_FUNCS
 170
 171 AC_HEADER_TIOCGWINSZ
 172
 173 BASH_TYPE_SIG_ATOMIC_T
 174 BASH_TYPE_SIGHANDLER
 175
 176 BASH_HAVE_TIOCSTAT
 177 BASH_HAVE_FIONREAD
 178 BASH_CHECK_SPEED_T
 179 BASH_STRUCT_WINSIZE
 180 BASH_STRUCT_DIRENT_D_INO
 181 BASH_STRUCT_DIRENT_D_FILENO
 182
 183 AC_CHECK_HEADERS(libaudit.h)
 184 AC_CHECK_DECLS([AUDIT_USER_TTY],,, [[#include <linux/audit.h>]])
 185
 186 dnl yuck
 187 case "$host_os" in
 188 aix*)   prefer_curses=yes ;;
 189 esac
 190 BASH_CHECK_LIB_TERMCAP
 191 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
 192         if test "$prefer_curses" = yes; then
 193                 TERMCAP_LIB=-lcurses
 194         else
 195                 TERMCAP_LIB=-ltermcap   #default
 196         fi
 197 fi
 198 # Windows ncurses installation
 199 if test "$TERMCAP_LIB" = "-lncurses"; then
 200         AC_CHECK_HEADERS(ncurses/termcap.h)
 201 fi
 202
 203 BASH_CHECK_MULTIBYTE
 204
 205 case "$host_cpu" in
 206 *cray*) LOCAL_CFLAGS=-DCRAY ;;
 207 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
 208 esac
 209
 210 case "$host_os" in
 211 isc*)   LOCAL_CFLAGS=-Disc386 ;;
 212 esac
 213
 214 # shared library configuration section
 215 #
 216 # Shared object configuration section.  These values are generated by
 217 # ${srcdir}/support/shobj-conf
 218 #
 219 if test -f ${srcdir}/support/shobj-conf; then
 220         AC_MSG_CHECKING(configuration for building shared libraries)
 221         eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
 222
 223 #       case "$SHLIB_LIBS" in
 224 #       *curses*|*termcap*|*termlib*)   ;;
 225 #       *)                      SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
 226 #       esac
 227
 228         AC_SUBST(SHOBJ_CC)
 229         AC_SUBST(SHOBJ_CFLAGS)
 230         AC_SUBST(SHOBJ_LD)
 231         AC_SUBST(SHOBJ_LDFLAGS)
 232         AC_SUBST(SHOBJ_XLDFLAGS)
 233         AC_SUBST(SHOBJ_LIBS)
 234         AC_SUBST(SHOBJ_STATUS)
 235         AC_SUBST(SHLIB_STATUS)
 236         AC_SUBST(SHLIB_XLDFLAGS)
 237         AC_SUBST(SHLIB_DOT)
 238         AC_SUBST(SHLIB_LIBPREF)
 239         AC_SUBST(SHLIB_LIBSUFF)
 240         AC_SUBST(SHLIB_LIBVERSION)
 241         AC_SUBST(SHLIB_DLLVERSION)
 242         AC_SUBST(SHLIB_LIBS)
 243         AC_MSG_RESULT($SHLIB_STATUS)
 244
 245         # SHLIB_STATUS is either `supported' or `unsupported'.  If it's
 246         # `unsupported', turn off any default shared library building
 247         if test "$SHLIB_STATUS" = 'unsupported'; then
 248                 opt_shared_libs=no
 249         fi
 250
 251         # shared library versioning
 252         # quoted for m4 so I can use character classes
 253         SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
 254         SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
 255         AC_SUBST(SHLIB_MAJOR)
 256         AC_SUBST(SHLIB_MINOR)
 257 fi
 258
 259 if test "$opt_static_libs" = "yes"; then
 260         STATIC_TARGET=static
 261         STATIC_INSTALL_TARGET=install-static
 262 fi
 263 if test "$opt_shared_libs" = "yes"; then
 264         SHARED_TARGET=shared
 265         SHARED_INSTALL_TARGET=install-shared
 266 fi
 267
 268 AC_SUBST(STATIC_TARGET)
 269 AC_SUBST(SHARED_TARGET)
 270 AC_SUBST(STATIC_INSTALL_TARGET)
 271 AC_SUBST(SHARED_INSTALL_TARGET)
 272
 273 case "$build_os" in
 274 msdosdjgpp*)    BUILD_DIR=`pwd.exe` ;;  # to prevent //d/path/file
 275 *)              BUILD_DIR=`pwd` ;;
 276 esac
 277
 278 case "$BUILD_DIR" in
 279 *\ *)   BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
 280 *)      ;;
 281 esac
 282
 283 AC_SUBST(BUILD_DIR)
 284
 285 AC_SUBST(CFLAGS)
 286 AC_SUBST(LOCAL_CFLAGS)
 287 AC_SUBST(LOCAL_LDFLAGS)
 288 AC_SUBST(LOCAL_DEFS)
 289
 290 AC_SUBST(AR)
 291 AC_SUBST(ARFLAGS)
 292
 293 AC_SUBST(host_cpu)
 294 AC_SUBST(host_os)
 295
 296 AC_SUBST(LIBVERSION)
 297
 298 AC_SUBST(TERMCAP_LIB)
 299
 300 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
 301 [
 302 # Makefile uses this timestamp file to record whether config.h is up to date.
 303 echo > stamp-h
 304 ])