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=${srcdir}/cross-build/cygwin.cache
  59         if test -r "${cross_cache}"; then
  60             echo "loading cross-build cache file ${cross_cache}"
  61             . ${cross_cache}
  62         fi
  63         LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
  64         unset cross_cache
  65         ;;
  66     *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
  67         ;;
  68     esac
  69 fi
  70
  71 if test "x$cross_compiling" = "xyes"; then
  72   CROSS_COMPILING_FLAG=-DCROSS_COMPILING
  73 else
  74   CROSS_COMPILING_FLAG=
  75 fi
  76 AC_SUBST(CROSS_COMPILING_FLAG)
  77
  78 if test -z "$CC_FOR_BUILD"; then
  79     if test "x$cross_compiling" = "xno"; then
  80         CC_FOR_BUILD='$(CC)'
  81     else
  82         CC_FOR_BUILD=gcc
  83     fi
  84 fi
  85 AC_SUBST(CC_FOR_BUILD)
  86
  87 dnl END changes for CYGNUS cross-building for Cygwin
  88
  89 # If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
  90 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
  91
  92 AC_PROG_GCC_TRADITIONAL
  93 AC_PROG_INSTALL
  94 AC_CHECK_PROG(AR, ar, , ar)
  95 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
  96 dnl This allows people to set it when running configure or make
  97 test -n "$ARFLAGS" || ARFLAGS="cr"
  98 AC_PROG_RANLIB
  99
 100 MAKE_SHELL=/bin/sh
 101 AC_SUBST(MAKE_SHELL)
 102
 103 AC_C_CONST
 104 AC_C_PROTOTYPES
 105 AC_C_CHAR_UNSIGNED
 106
 107 AC_TYPE_SIGNAL
 108
 109 AC_TYPE_SIZE_T
 110 AC_CHECK_TYPE(ssize_t, int)
 111
 112 AC_HEADER_STAT
 113 AC_HEADER_DIRENT
 114
 115 AC_CHECK_FUNCS(lstat memmove putenv select setenv setlocale \
 116                 strcasecmp strpbrk tcgetattr vsnprintf isascii isxdigit)
 117
 118 AC_FUNC_STRCOLL
 119
 120 AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
 121                 limits.h sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
 122                 termcap.h termios.h termio.h sys/file.h locale.h memory.h )
 123
 124 BASH_SYS_SIGNAL_VINTAGE
 125 BASH_SYS_REINSTALL_SIGHANDLERS
 126
 127 BASH_FUNC_POSIX_SETJMP
 128 BASH_FUNC_LSTAT
 129 BASH_FUNC_STRCOLL
 130
 131 BASH_CHECK_GETPW_FUNCS
 132
 133 AC_HEADER_TIOCGWINSZ
 134
 135 BASH_TYPE_SIGHANDLER
 136 BASH_HAVE_TIOCSTAT
 137 BASH_HAVE_FIONREAD
 138 BASH_CHECK_SPEED_T
 139 BASH_STRUCT_WINSIZE
 140 BASH_STRUCT_DIRENT_D_INO
 141 BASH_STRUCT_DIRENT_D_FILENO
 142
 143 dnl yuck
 144 case "$host_os" in
 145 aix*)   prefer_curses=yes ;;
 146 esac
 147 BASH_CHECK_LIB_TERMCAP
 148 if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
 149         if test "$prefer_curses" = yes; then
 150                 TERMCAP_LIB=-lcurses
 151         else
 152                 TERMCAP_LIB=-ltermcap   #default
 153         fi
 154 fi
 155
 156 BASH_CHECK_MULTIBYTE
 157
 158 case "$host_cpu" in
 159 *cray*) LOCAL_CFLAGS=-DCRAY ;;
 160 *s390*) LOCAL_CFLAGS=-fsigned-char ;;
 161 esac
 162
 163 case "$host_os" in
 164 isc*)   LOCAL_CFLAGS=-Disc386 ;;
 165 esac
 166
 167 # shared library configuration section
 168 #
 169 # Shared object configuration section.  These values are generated by
 170 # ${srcdir}/support/shobj-conf
 171 #
 172 if test -f ${srcdir}/support/shobj-conf; then
 173         AC_MSG_CHECKING(configuration for building shared libraries)
 174         eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
 175         AC_SUBST(SHOBJ_CC)
 176         AC_SUBST(SHOBJ_CFLAGS)
 177         AC_SUBST(SHOBJ_LD)
 178         AC_SUBST(SHOBJ_LDFLAGS)
 179         AC_SUBST(SHOBJ_XLDFLAGS)
 180         AC_SUBST(SHOBJ_LIBS)
 181         AC_SUBST(SHOBJ_STATUS)
 182         AC_SUBST(SHLIB_STATUS)
 183         AC_SUBST(SHLIB_XLDFLAGS)
 184         AC_SUBST(SHLIB_LIBSUFF)
 185         AC_SUBST(SHLIB_LIBVERSION)
 186         AC_SUBST(SHLIB_LIBS)
 187         AC_MSG_RESULT($SHLIB_STATUS)
 188
 189         # SHLIB_STATUS is either `supported' or `unsupported'.  If it's
 190         # `unsupported', turn off any default shared library building
 191         if test "$SHLIB_STATUS" = 'unsupported'; then
 192                 opt_shared_libs=no
 193         fi
 194
 195         # shared library versioning
 196         # quoted for m4 so I can use character classes
 197         SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
 198         SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
 199         AC_SUBST(SHLIB_MAJOR)
 200         AC_SUBST(SHLIB_MINOR)
 201 fi
 202
 203 if test "$opt_static_libs" = "yes"; then
 204         STATIC_TARGET=static
 205         STATIC_INSTALL_TARGET=install-static
 206 fi
 207 if test "$opt_shared_libs" = "yes"; then
 208         SHARED_TARGET=shared
 209         SHARED_INSTALL_TARGET=install-shared
 210 fi
 211
 212 AC_SUBST(STATIC_TARGET)
 213 AC_SUBST(SHARED_TARGET)
 214 AC_SUBST(STATIC_INSTALL_TARGET)
 215 AC_SUBST(SHARED_INSTALL_TARGET)
 216
 217 case "$host_os" in
 218 msdosdjgpp*)    BUILD_DIR=`pwd.exe` ;;  # to prevent //d/path/file
 219 *)              BUILD_DIR=`pwd` ;;
 220 esac
 221
 222 AC_SUBST(BUILD_DIR)
 223
 224 AC_SUBST(CFLAGS)
 225 AC_SUBST(LOCAL_CFLAGS)
 226 AC_SUBST(LOCAL_LDFLAGS)
 227 AC_SUBST(LOCAL_DEFS)
 228
 229 AC_SUBST(AR)
 230 AC_SUBST(ARFLAGS)
 231
 232 AC_SUBST(host_cpu)
 233 AC_SUBST(host_os)
 234
 235 AC_SUBST(LIBVERSION)
 236
 237 AC_SUBST(TERMCAP_LIB)
 238
 239 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
 240 [
 241 # Makefile uses this timestamp file to record whether config.h is up to date.
 242 echo > stamp-h
 243 ])