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) 1987-2018 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 8.0, version 2.85])
  24
  25 m4_include([../config/override.m4])
  26
  27 AC_INIT(readline, 8.0, 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 $srcdir;pwd`/..)
  36 AC_CONFIG_HEADERS(config.h)
  37
  38 dnl update the value of RL_READLINE_VERSION in readline.h when this changes
  39 LIBVERSION=8.0
  40
  41 AC_CANONICAL_HOST
  42 AC_CANONICAL_BUILD
  43
  44 dnl configure defaults
  45 opt_curses=no
  46
  47 dnl arguments to configure
  48 AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
  49
  50 if test "$opt_curses" = "yes"; then
  51         prefer_curses=yes
  52 fi
  53
  54 dnl option parsing for optional features
  55 opt_multibyte=yes
  56 opt_static_libs=yes
  57 opt_shared_libs=no
  58 opt_install_examples=no
  59
  60 AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$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)
  64
  65 if test $opt_multibyte = no; then
  66 AC_DEFINE(NO_MULTIBYTE_SUPPORT)
  67 fi
  68
  69 dnl load up the cross-building cache file -- add more cases and cache
  70 dnl files as necessary
  71
  72 dnl Note that host and target machine are the same, and different than the
  73 dnl build machine.
  74
  75 CROSS_COMPILE=
  76 if test "x$cross_compiling" = "xyes"; then
  77     case "${host}" in
  78     *-cygwin*)
  79         cross_cache=${srcdir}/cross-build/cygwin.cache
  80         ;;
  81     *-mingw*)
  82         cross_cache=${srcdir}/cross-build/mingw.cache
  83         ;;
  84     i[[3456]]86-*-beos*)
  85         cross_cache=${srcdir}/cross-build/x86-beos.cache
  86         ;;
  87     *)  echo "configure: cross-compiling for $host is not supported" >&2
  88         ;;
  89     esac
  90     if test -n "${cross_cache}" && test -r "${cross_cache}"; then
  91         echo "loading cross-build cache file ${cross_cache}"
  92         . ${cross_cache}
  93     fi
  94     unset cross_cache
  95     CROSS_COMPILE='-DCROSS_COMPILING'
  96     AC_SUBST(CROSS_COMPILE)
  97 fi
  98
  99 echo ""
 100 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
 101 echo ""
 102
 103 # We want these before the checks, so the checks can modify their values.
 104 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
 105
 106 AC_PROG_MAKE_SET
 107 AC_PROG_CC
 108 dnl AC_AIX
 109 AC_MINIX
 110
 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="$CFLAGS -O"
 113
 114 AC_PROG_GCC_TRADITIONAL
 115 AC_PROG_INSTALL
 116 AC_CHECK_TOOL(AR, ar)
 117 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
 118 dnl This allows people to set it when running configure or make
 119 test -n "$ARFLAGS" || ARFLAGS="cr"
 120 AC_PROG_RANLIB
 121
 122 MAKE_SHELL=/bin/sh
 123 AC_SUBST(MAKE_SHELL)
 124
 125 AC_C_CONST
 126 AC_C_PROTOTYPES
 127 AC_C_CHAR_UNSIGNED
 128 AC_C_VOLATILE
 129
 130 AC_TYPE_SIGNAL
 131
 132 AC_TYPE_SIZE_T
 133 AC_CHECK_TYPE(ssize_t, int)
 134
 135 AC_HEADER_STDC
 136
 137 AC_HEADER_STAT
 138 AC_HEADER_DIRENT
 139
 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)
 145
 146 AC_FUNC_CHOWN
 147 AC_FUNC_STRCOLL
 148
 149 AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h stdbool.h \
 150                 string.h strings.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)
 153
 154 AC_CHECK_HEADERS(sys/ptem.h,,,
 155 [[
 156 #if HAVE_SYS_STREAM_H
 157 #  include <sys/stream.h>
 158 #endif
 159 ]])
 160
 161 AC_SYS_LARGEFILE
 162
 163 BASH_SYS_SIGNAL_VINTAGE
 164 BASH_SYS_REINSTALL_SIGHANDLERS
 165
 166 BASH_FUNC_POSIX_SETJMP
 167 BASH_FUNC_LSTAT
 168 BASH_FUNC_STRCOLL
 169 BASH_FUNC_CTYPE_NONASCII
 170
 171 BASH_CHECK_GETPW_FUNCS
 172
 173 AC_HEADER_TIOCGWINSZ
 174
 175 BASH_TYPE_SIG_ATOMIC_T
 176 BASH_TYPE_SIGHANDLER
 177
 178 BASH_HAVE_TIOCSTAT
 179 BASH_HAVE_FIONREAD
 180 BASH_CHECK_SPEED_T
 181 BASH_STRUCT_WINSIZE
 182 BASH_STRUCT_DIRENT_D_INO
 183 BASH_STRUCT_DIRENT_D_FILENO
 184
 185 AC_CHECK_HEADERS(libaudit.h)
 186 AC_CHECK_DECLS([AUDIT_USER_TTY],,, [[#include <linux/audit.h>]])
 187
 188 dnl yuck
 189 case "$host_os" in
 190 aix*)   prefer_curses=yes ;;
 191 esac
 192 BASH_CHECK_LIB_TERMCAP
 193 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
 194         if test "$prefer_curses" = yes; then
 195                 TERMCAP_LIB=-lcurses
 196         else
 197                 TERMCAP_LIB=-ltermcap   #default
 198         fi
 199 fi
 200 # Windows ncurses installation
 201 if test "$TERMCAP_LIB" = "-lncurses"; then
 202         AC_CHECK_HEADERS(ncurses/termcap.h)
 203 fi
 204
 205 case "$TERMCAP_LIB" in
 206 -ltinfo)  TERMCAP_PKG_CONFIG_LIB=tinfo ;;
 207 -lcurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
 208 -lncurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
 209 -ltermcap) TERMCAP_PKG_CONFIG_LIB=termcap ;;
 210 *) TERMCAP_PKG_CONFIG_LIB=termcap ;;
 211 esac
 212
 213 BASH_CHECK_MULTIBYTE
 214
 215 case "$host_cpu" in
 216 *cray*) LOCAL_CFLAGS=-DCRAY ;;
 217 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
 218 esac
 219
 220 case "$host_os" in
 221 isc*)   LOCAL_CFLAGS=-Disc386 ;;
 222 esac
 223
 224 # shared library configuration section
 225 #
 226 # Shared object configuration section.  These values are generated by
 227 # ${srcdir}/support/shobj-conf
 228 #
 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 ${host_vendor}`
 232
 233 #       case "$SHLIB_LIBS" in
 234 #       *curses*|*termcap*|*termlib*)   ;;
 235 #       *)                      SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;
 236 #       esac
 237
 238         AC_SUBST(SHOBJ_CC)
 239         AC_SUBST(SHOBJ_CFLAGS)
 240         AC_SUBST(SHOBJ_LD)
 241         AC_SUBST(SHOBJ_LDFLAGS)
 242         AC_SUBST(SHOBJ_XLDFLAGS)
 243         AC_SUBST(SHOBJ_LIBS)
 244         AC_SUBST(SHOBJ_STATUS)
 245         AC_SUBST(SHLIB_STATUS)
 246         AC_SUBST(SHLIB_XLDFLAGS)
 247         AC_SUBST(SHLIB_DOT)
 248         AC_SUBST(SHLIB_LIBPREF)
 249         AC_SUBST(SHLIB_LIBSUFF)
 250         AC_SUBST(SHLIB_LIBVERSION)
 251         AC_SUBST(SHLIB_DLLVERSION)
 252         AC_SUBST(SHLIB_LIBS)
 253         AC_MSG_RESULT($SHLIB_STATUS)
 254
 255         # SHLIB_STATUS is either `supported' or `unsupported'.  If it's
 256         # `unsupported', turn off any default shared library building
 257         if test "$SHLIB_STATUS" = 'unsupported'; then
 258                 opt_shared_libs=no
 259         fi
 260
 261         # shared library versioning
 262         # quoted for m4 so I can use character classes
 263         SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
 264         SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
 265         AC_SUBST(SHLIB_MAJOR)
 266         AC_SUBST(SHLIB_MINOR)
 267 fi
 268
 269 if test "$opt_static_libs" = "yes"; then
 270         STATIC_TARGET=static
 271         STATIC_INSTALL_TARGET=install-static
 272 fi
 273 if test "$opt_shared_libs" = "yes"; then
 274         SHARED_TARGET=shared
 275         SHARED_INSTALL_TARGET=install-shared
 276 fi
 277
 278 AC_SUBST(STATIC_TARGET)
 279 AC_SUBST(SHARED_TARGET)
 280 AC_SUBST(STATIC_INSTALL_TARGET)
 281 AC_SUBST(SHARED_INSTALL_TARGET)
 282
 283 if test "$opt_install_examples" = "yes"; then
 284         EXAMPLES_INSTALL_TARGET=install-examples
 285 fi
 286 AC_SUBST(EXAMPLES_INSTALL_TARGET)
 287
 288 case "$build_os" in
 289 msdosdjgpp*)    BUILD_DIR=`pwd.exe` ;;  # to prevent //d/path/file
 290 *)              BUILD_DIR=`pwd` ;;
 291 esac
 292
 293 case "$BUILD_DIR" in
 294 *\ *)   BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;
 295 *)      ;;
 296 esac
 297
 298 AC_SUBST(BUILD_DIR)
 299
 300 AC_SUBST(CFLAGS)
 301 AC_SUBST(LOCAL_CFLAGS)
 302 AC_SUBST(LOCAL_LDFLAGS)
 303 AC_SUBST(LOCAL_DEFS)
 304
 305 AC_SUBST(AR)
 306 AC_SUBST(ARFLAGS)
 307
 308 AC_SUBST(host_cpu)
 309 AC_SUBST(host_os)
 310
 311 AC_SUBST(LIBVERSION)
 312
 313 AC_SUBST(TERMCAP_LIB)
 314 AC_SUBST(TERMCAP_PKG_CONFIG_LIB)
 315
 316 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
 317 [
 318 # Makefile uses this timestamp file to record whether config.h is up to date.
 319 echo > stamp-h
 320 ])