configure1.in

   1 #!/bin/sh
   2 # Configuration script for GNU Emacs
   3 #   Copyright (C) 1992 Free Software Foundation, Inc.
   4
   5 #This file is part of GNU Emacs.
   6
   7 #GNU Emacs is free software; you can redistribute it and/or modify
   8 #it under the terms of the GNU General Public License as published by
   9 #the Free Software Foundation; either version 1, or (at your option)
  10 #any later version.
  11
  12 #GNU Emacs is distributed in the hope that it will be useful,
  13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #GNU General Public License for more details.
  16
  17 #You should have received a copy of the GNU General Public License
  18 #along with GNU Emacs; see the file COPYING.  If not, write to
  19 #the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 # Shell script to edit files and make symlinks in preparation for
  22 # compiling Emacs.
  23 #
  24 # Usage: configure machine
  25 #
  26 # If configure succeeds, it leaves its status in config.status.
  27 # If configure fails after disturbing the status quo,
  28 #       config.status is removed.
  29 #
  30
  31 # Remove any leading "." elements from the path name.  If we don't
  32 # remove them, then another "./" will be prepended to the file name
  33 # each time we use config.status, and the program name will get larger
  34 # and larger.  This wouldn't be a problem, except that since progname
  35 # gets recorded in all the Makefiles this script produces,
  36 # move-if-changed thinks they're different when they're not.
  37 #
  38 # It would be nice if we could put the ./ in a \( \) group and then
  39 # apply the * operator to that, so we remove as many leading ./././'s
  40 # as are present, but some seds (like Ultrix's sed) don't allow you to
  41 # apply * to a \( \) group.  Bleah.
  42 progname="`echo $0 | sed 's:^\./::'`"
  43
  44 short_usage="Type \`${progname} -usage' for more information about options."
  45
  46 usage_message="Usage: ${progname} MACHINENAME [-OPTION[=VALUE] ...]
  47
  48 This message needs to be updated.
  49
  50 Set compilation and installation parameters for GNU Emacs, and report.
  51 MACHINENAME is the machine to build for.  See \`etc/MACHINES'.
  52 Options are:
  53   --opsystem=SYSTEM - operating system to build for; see \`etc/MACHINES'.
  54   --prefix=DIR - where to install Emacs's library files
  55 These options have reasonable defaults (in []s), and may not be needed:
  56   -g, -O - Passed to the compiler.  Default is -g, plus -O if using gcc.
  57   --cc=COMPILER - Which compiler to use.  Defaults to gcc if available.
  58   --libdir=DIR - where to look for arch-dependent library files
  59   --datadir=DIR - where to look for architecture-independent library files
  60   --bindir=DIR - where to install the Emacs executable, and some friends
  61   --lisppath=PATH - colon-separated list of Emacs Lisp directories
  62   --lockdir=DIR - where Emacs should do its file-locking stuff
  63   --with-x or --with-x10 - what window system to use;
  64          default is to use X11 if present
  65 If successful, ${progname} leaves its status in config.status.  If
  66 unsuccessful after disturbing the status quo, config.status is removed."
  67 # These are omitted since users should not mess with them.
  68 #  --gnu-malloc=[yes] or no - use the GNU memory allocator
  69 #  --rel-alloc=[yes] or no - use compacting allocator for buffers
  70 #  --lisp-float-type=[yes] or no - Support floating point in Emacs Lisp.
  71 # --window-system is omitted because --with... follow the conventions.
  72
  73 if [ ! -r ./src/lisp.h ]; then
  74   echo "${progname}: Can't find Emacs sources in \`./src'.
  75 Run this config script in the top directory of the Emacs source tree." >&2
  76   exit 1
  77 fi
  78
  79 # The option names defined here are actually the shell variable names.
  80 # They should have `_' in place of `-'.
  81 options=":\
  82 usage:help:\
  83 machine:opsystem:\
  84 g:O:cc:\
  85 prefix:bindir:emacsdir:datadir:lispdir:locallisppath:\
  86 lisppath:buildlisppath:statedir:lockdir:libdir:mandir:infodir:\
  87 gnu_malloc:rel_alloc:lisp_float_type:\
  88 window_system:\
  89 "
  90
  91 boolean_opts=":\
  92 g:O:\
  93 gnu_malloc:rel_alloc:lisp_float_type:have_x_menu:with_x:with_x11:with_x10:\
  94 "
  95
  96 config_h_opts=":\
  97 gnu_malloc:rel_alloc:lisp_float_type:\
  98 have_x_windows:have_x11:\
  99 c_switch_site:sigtype:\
 100 "
 101
 102 prefix=
 103 bindir=/usr/local/bin
 104 gnu_malloc=yes
 105 lisp_float_type=yes
 106
 107 # The default values for the following options are guessed at after other
 108 # options have been checked and given values, so we set them to null here.
 109 lisppath=""
 110 datadir=""
 111 libdir=""
 112 lockdir=""
 113 window_system=""
 114
 115 # Record all the arguments, so we can save them in config.status.
 116 arguments="$*"
 117
 118 echo "Examining options."
 119 while [ $# != 0 ]; do
 120   arg="$1"
 121   case "${arg}" in
 122     -*)
 123       # Separate the switch name from the value it's being given.
 124       # Also change `-' in the option name to `_'.
 125       case "${arg}" in
 126         -*=*)
 127           opt=`echo ${arg} | sed 's:^-*\([^=]*\)=.*$:\1:' | tr - _`
 128           val=`echo ${arg} | sed 's:^-*[^=]*=\(.*\)$:\1:'`
 129           valomitted=no
 130         ;;
 131         -*)
 132           # If FOO is a boolean argument, -FOO is equivalent to
 133           # -FOO=yes.  Otherwise, the value comes from the next
 134           # argument - see below.
 135           opt=`echo ${arg} | sed 's:^-*\(.*\)$:\1:' | tr - _`
 136           val="yes"
 137           valomitted=yes
 138         ;;
 139       esac
 140
 141       # Make sure the argument is valid and unambiguous.
 142       case ${options} in
 143         *:${opt}:* )    # Exact match.
 144           optvar=${opt}
 145         ;;
 146         *:${opt}*:${opt}*:* )   # Ambiguous prefix.
 147           echo "\`-${opt}' is an ambiguous switch; it could be any of the following:"
 148           # We can't just use tr to translate colons to newlines, since
 149           # BSD sed and SYSV sed use different syntaxes for that.
 150           spaced_options=`echo ${options} | tr ':' ' '`
 151           echo `(for option in ${spaced_options}; do echo $option; done) \
 152                 | grep "^${opt}"`
 153           echo ${short_usage}
 154           exit 1
 155         ;;
 156         *:${opt}*:* )           # Unambigous prefix.
 157           optvar=`echo ${options} | sed 's/^.*:\('${opt}'[^:]*\):.*$/\1/'`
 158         ;;
 159         * )
 160           (echo "\`-${opt}' is not a valid option."
 161            echo "${short_usage}") | more
 162           exit 1
 163         ;;
 164       esac
 165
 166       case "${optvar}" in
 167         usage | help)
 168           echo "${usage_message}" | more
 169           exit 1
 170         ;;
 171       esac
 172
 173       # If the variable is supposed to be boolean, make sure the value
 174       # given is either "yes" or "no".  If not, make sure some value
 175       # was given.
 176       case "${boolean_opts}" in
 177         *:${optvar}:* )
 178           case "${val}" in
 179             y | ye | yes )      val=yes ;;
 180             n | no )            val=no  ;;
 181             * )
 182               echo "The \`-${optvar}' option (\`-${opt}') is supposed to have a boolean
 183   value - set it to either \`yes' or \`no'." >&2
 184               exit 1
 185             ;;
 186           esac
 187         ;;
 188         *)
 189           if [ "${valomitted}" = "yes" ]; then
 190             if [ $# = 1 ]; then
 191               (echo "${progname}: You must give a value for the \`-${opt}' option, as in
 192     \`-${opt}=FOO'."
 193                echo "${short_usage}") | more
 194               exit 1
 195             fi
 196             shift; val="$1"
 197           fi
 198         ;;
 199       esac
 200
 201       eval "${optvar}=\"${val}\""
 202     ;;
 203     *)
 204       machine=${arg}
 205     ;;
 206   esac
 207   shift
 208 done
 209
 210 if [ "${machine}" = "" ]; then
 211   (echo "You must specify a machine name as an argument to ${progname}."
 212    echo "${short_usage}") | more
 213   exit 1
 214 fi
 215
 216 echo "Checking the machine."
 217 machfile="m/${machine}.h"
 218 if [ ! -r src/${machfile} ]; then
 219   echo "${progname}: Emacs has no configuration info for the machine called
 220 \`${machine}'.  Look at etc/MACHINES for the names of machines
 221 that Emacs has been ported to." >&2
 222   exit 1
 223 fi
 224
 225 echo "Checking the operating system."
 226 if [ "${opsystem}" = "" ]; then
 227
 228   echo "  No operating system explicitly specified."
 229   echo "  Guessing, based on machine."
 230   # Get the default operating system to go with the specified machine.
 231   opsystem=`grep 'USUAL-OPSYS="' src/${machfile} \
 232             | sed 's/^.*USUAL-OPSYS="\([^"]*\)".*$/\1/'`
 233
 234   if [ "${opsystem}" = "" ]; then
 235     echo "${progname}: Emacs's configuration files don't suggest what operating
 236 system a \`${machine}' machine might run.  Try specifying the
 237 operating system explicitly by passing ${progname} an
 238 \`-opsystem=SYSTEM-NAME' flag.  Look at etc/MACHINES for the
 239 names of operating systems that Emacs has been ported to." >&2
 240     exit 1
 241   fi
 242
 243   if [ "${opsystem}" = "note" ]; then
 244     echo "The \`${machine}' machine can be used with more than one operating
 245 system, and Emacs's configuration info isn't clever enough to figure
 246 out which one you're running.  Run ${progname} with -machine and
 247 -opsystem arguments as specified below for the appropriate system.
 248 (This information comes from the file \`etc/MACHINES' - see that
 249 file for more detail.)
 250
 251 " >&2
 252     sed < src/${machfile} -e '1,/NOTE-START/d' -e '/NOTE-END/,$d' | more
 253     echo
 254     exit 1
 255   fi
 256
 257   opsysfile="s/${opsystem}.h"
 258   if [ ! -r src/${opsysfile} ]; then
 259     echo "${progname}: Emacs's configuration files say that the default
 260 operating system for the machine \`${machine}' is \`${opsystem}',
 261 but there is no configuration file for \`${opsystem}', so Emacs's
 262 default info is screwed up.  Try specifying the operating system
 263 explicitly by passing ${progname} an \`-opsystem=SYSTEM-NAME' flag." >&2
 264     exit 1
 265   fi
 266 else
 267   opsysfile="s/${opsystem}.h"
 268   if [ ! -r src/${opsysfile} ]; then
 269     echo "${progname}: Emacs has no configuration info for the operating system
 270 \`${opsystem}'.  Look at etc/MACHINES for the names of operating
 271 systems that Emacs has been ported to." >&2
 272     exit 1
 273   fi
 274 fi
 275
 276 if [ ! "${prefix}" ]; then
 277   prefix="/usr/local"
 278 fi
 279
 280 if [ ! "${emacsdir}" ]; then
 281   emacsdir="${prefix}/emacs-19.0"
 282 fi
 283
 284 if [ ! "${datadir}" ]; then
 285   datadir="${emacsdir}/etc"
 286 fi
 287
 288 if [ ! "${lispdir}" ]; then
 289   lispdir="${emacsdir}/lisp"
 290 fi
 291
 292 if [ ! "${locallisppath}" ]; then
 293   locallisppath="${emacsdir}/local-lisp"
 294 fi
 295
 296 if [ ! "${lisppath}" ]; then
 297   lisppath="${locallisppath}:${lispdir}"
 298 fi
 299
 300 if [ ! "${buildlisppath}" ]; then
 301   buildlisppath=../lisp
 302 fi
 303
 304 if [ ! "${statedir}" ]; then
 305   statedir="${emacsdir}"
 306 fi
 307
 308 if [ ! "${lockdir}" ]; then
 309   lockdir="${statedir}/lock"
 310 fi
 311
 312 if [ "${libdir}" = "" ]; then
 313   libdir="${emacsdir}/arch-lib"
 314 fi
 315
 316 if [ ! "${mandir}" ]; then
 317   mandir="/usr/man/man1"
 318 fi
 319
 320 if [ ! "${infodir}" ]; then
 321   infodir="${prefix}/info"
 322 fi
 323
 324 echo "Checking window system."
 325 case "${with_x11}" in
 326   yes )
 327     window_system=${window_system}x11
 328     ;;
 329 esac
 330 case "${with_x}" in
 331   yes )
 332     window_system=${window_system}x11
 333     ;;
 334 esac
 335 case "${with_x10}" in
 336   yes )
 337     window_system=${window_system}x10
 338     ;;
 339 esac
 340
 341 # Note that SYSV `tr' doesn't handle character ranges.
 342 window_system="`echo ${window_system} \
 343                 | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
 344 case "${window_system}" in
 345   "none" | "x11" | "x10" ) ;;
 346   "x" ) window_system=x11 ;;
 347   "" )
 348     echo "  No window system specifed.  Looking for X Windows."
 349     window_system=none
 350     if [ -r /usr/lib/libX11.a -o -d /usr/include/X11 ]; then
 351       window_system=x11
 352     fi
 353   ;;
 354   * )
 355     echo "Don\'t specify the window system more than once." >&2
 356     exit 1
 357   ;;
 358 esac
 359
 360 case "${window_system}" in
 361   x11 )
 362     have_x_windows=yes
 363     have_x11=yes
 364   ;;
 365   x10 )
 366     have_x_windows=yes
 367     have_x11=no
 368   ;;
 369   none )
 370     have_x_windows=no
 371     have_x11=no
 372   ;;
 373 esac
 374
 375 echo "Checking for GCC."
 376 case "${cc}" in
 377   "" )
 378     temppath=`echo $PATH | sed 's/^:/.:/
 379                                 s/::/:.:/g
 380                                 s/:$/:./
 381                                 s/:/ /g'`
 382     cc=`(
 383       for dir in ${temppath}; do
 384         if [ -f ${dir}/gcc ]; then echo gcc; exit 0; fi
 385       done
 386       echo cc
 387     )`
 388   ;;
 389 esac
 390
 391 case "${cc}" in
 392   "gcc" )
 393     # With GCC, both O and g should default to yes, no matter what
 394     # the other is.
 395     case "${O},${g}" in
 396       ,  ) O=yes; g=yes ;;
 397       ,* ) O=yes;       ;;
 398       *, )        g=yes ;;
 399     esac
 400   ;;
 401   "*" )
 402     # With other compilers, treat them as mutually exclusive,
 403     # defaulting to debug.
 404     case "${O},${g}" in
 405       ,    ) O=no ; g=yes ;;
 406       ,no  ) O=yes;       ;;
 407       ,yes ) O=no ;       ;;
 408       no,  )        g=yes ;;
 409       yes, )        g=no  ;;
 410     esac
 411   ;;
 412 esac
 413
 414 # What is the return type of a signal handler?  We run
 415 # /usr/include/signal.h through cpp and grep for the declaration of
 416 # the signal function.  Yuck.
 417 echo "Looking for return type of signal handler functions."
 418 signal_h_file=''
 419 if [ -r /usr/include/signal.h ]; then
 420   signal_h_file=/usr/include/signal.h
 421 elif [ -r /usr/include/sys/signal.h ]; then
 422   signal_h_file=/usr/include/sys/signal.h
 423 fi
 424 sigtype=void
 425 if [ "${signal_h_file}" ]; then
 426   sigpattern='[         ]*([    ]*\*[   ]*signal[       ]*('
 427
 428   # We make a copy whose name ends in .c, so the compiler
 429   # won't complain about having only been given a .h file.
 430   tempcname="configure.tmp.$$.c"
 431   cp ${signal_h_file}  ${tempcname}
 432   if ${cc} -E ${tempcname} | grep "int${sigpattern}" > /dev/null; then
 433     sigtype=int
 434   fi
 435   rm -f ${tempcname}
 436 fi
 437
 438 echo "Examining the machine- and system-dependent files to find out"
 439 echo " - which libraries the lib-src programs will want, and"
 440 echo " - whether the GNU malloc routines are usable."
 441 tempcname="configure.tmp.$$.c"
 442 echo '#include "src/'${opsysfile}'"
 443 #include "src/'${machfile}'"
 444 #ifndef LIBS_MACHINE
 445 #define LIBS_MACHINE
 446 #endif
 447 #ifndef LIBS_SYSTEM
 448 #define LIBS_SYSTEM
 449 #endif
 450 @configure@ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
 451 #ifdef SYSTEM_MALLOC
 452 @configure@ system_malloc=yes
 453 #else
 454 @configure@ system_malloc=no
 455 #endif
 456 ' > ${tempcname}
 457 eval `${cc} -E ${tempcname} \
 458       | grep '@configure@' \
 459       | sed -e 's/^@configure@//'`
 460 rm ${tempcname}
 461
 462 # Do the opsystem or machine files prohibit the use of the GNU malloc?
 463 if [ "${system_malloc}" = "yes" ]; then
 464   gnu_malloc=no
 465   gnu_malloc_reason="
 466   (The GNU allocators don't work with this machine and/or operating system.)"
 467 fi
 468
 469 if [ ! "${rel_alloc}" ]; then
 470   rel_alloc=${gnu_malloc}
 471 fi
 472
 473 rm -f config.status
 474 set -e
 475
 476 # Make the proper settings in the config file.
 477 echo "Making src/config.h from src/config.h.in"
 478 case "${g}" in
 479   "yes" ) c_switch_site="${c_switch_site} -g" ;;
 480 esac
 481 case "${O}" in
 482   "yes" ) c_switch_site="${c_switch_site} -O" ;;
 483 esac
 484 sed_flags="-e 's:@machine@:${machfile}:'"
 485 sed_flags="${sed_flags} -e 's:@opsystem@:${opsysfile}:'"
 486 for flag in `echo ${config_h_opts} | tr ':' ' '`; do
 487   # Note that SYSV `tr' doesn't handle character ranges.
 488   cflagname=`echo ${flag} \
 489              | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 490   val=`eval echo '$'${flag}`
 491   case ${val} in
 492     no | "")
 493       f="-e 's:.*#define ${cflagname}.*:/\\* #define ${cflagname} \\*/:'"
 494     ;;
 495     yes)
 496       f="-e 's:.*#define ${cflagname}.*:#define ${cflagname}:'"
 497     ;;
 498     *)
 499       f="-e 's:.*#define ${cflagname}.*:#define ${cflagname} ${val}:'"
 500     ;;
 501   esac
 502   sed_flags="${sed_flags} ${f}"
 503 done
 504 rm -f src/config.h.tmp
 505 eval '/bin/sed '${sed_flags}' < src/config.h.in > src/config.h.tmp'
 506 ./move-if-change src/config.h.tmp src/config.h
 507 # Remind people not to edit this.
 508 chmod -w src/config.h
 509
 510 # Modify the parameters in the top makefile.
 511 echo "Producing ./Makefile from ./Makefile.in."
 512 rm -f Makefile.tmp
 513 (echo "# This file is generated by \`${progname}' from \`./Makefile.in'.
 514 # If you are thinking about editing it, you should seriously consider
 515 # editing \`./Makefile.in' itself, or running \`${progname}' instead."
 516  /bin/sed < Makefile.in                                 \
 517  -e '/^# DIST: /d'                                      \
 518  -e 's;^\(prefix=\).*$;\1'"${prefix};"                  \
 519  -e 's;^\(bindir=\).*$;\1'"${bindir};"                  \
 520  -e 's;^\(emacsdir=\).*$;\1'"${emacsdir};"              \
 521  -e 's;^\(datadir=\).*$;\1'"${datadir};"                \
 522  -e 's;^\(lispdir=\).*$;\1'"${lispdir};"                \
 523  -e 's;^\(locallisppath=\).*$;\1'"${locallisppath};"    \
 524  -e 's;^\(lisppath=\).*$;\1'"${lisppath};"              \
 525  -e 's;^\(buildlisppath=\).*$;\1'"${buildlisppath};"    \
 526  -e 's;^\(statedir=\).*$;\1'"${statedir};"              \
 527  -e 's;^\(lockdir=\).*$;\1'"${lockdir};"                \
 528  -e 's;^\(libdir=\).*$;\1'"${libdir};"                  \
 529  -e 's;^\(mandir=\).*$;\1'"${mandir};"                  \
 530  -e 's;^\(infodir=\).*$;\1'"${infodir};"                \
 531 ) > ./Makefile.tmp
 532 ./move-if-change Makefile.tmp Makefile
 533 # Remind people not to edit this.
 534 chmod -w ./Makefile
 535
 536 # Modify the parameters in the `build-install' script.
 537 echo "Producing ./build-install from ./build-install.in."
 538 rm -f ./build-install.tmp
 539 (echo "# This file is generated by \`${progname}' from \`./build-install.in'.
 540 # If you are thinking about editing it, you should seriously consider
 541 # editing \`./build-install.in' itself, or running \`${progname}' instead."
 542  /bin/sed < build-install.in                            \
 543  -e 's;^\(prefix=\).*$;\1'"${prefix};"                  \
 544  -e 's;^\(bindir=\).*$;\1'"${bindir};"                  \
 545  -e 's;^\(lisppath=\).*$;\1'"${lisppath};"              \
 546  -e 's;^\(datadir=\).*$;\1'"${datadir};"                \
 547  -e 's;^\(lockdir=\).*$;\1'"${lockdir};"                \
 548  -e 's;^\(libdir=\).*$;\1'"${libdir};") > ./build-install.tmp
 549 ./move-if-change build-install.tmp build-install
 550 # Remind people not to edit this.
 551 chmod -w build-install
 552 chmod +x build-install
 553
 554 # Modify the parameters in the src makefile.
 555 echo "Producing src/Makefile from src/Makefile.in."
 556 rm -f src/Makefile.tmp
 557 (echo "# This file is generated by \`${progname}' from \`Makefile.in'.
 558 # If you are thinking about editing it, you should seriously consider
 559 # editing \`Makefile.in' itself, or running \`${progname}' instead."
 560  /bin/sed < src/Makefile.in                             \
 561  -e '/^# DIST: /d'                                      \
 562  -e 's;^\(CC[ ]*=\).*$;\1'"${cc};") > src/Makefile.tmp
 563 ./move-if-change src/Makefile.tmp src/Makefile
 564 # Remind people not to edit this.
 565 chmod -w src/Makefile
 566
 567 # Modify the parameters in the lib-src makefile.
 568 echo "Producing lib-src/Makefile from lib-src/Makefile.in."
 569 rm -f lib-src/Makefile.tmp
 570 (echo "# This file is generated by \`${progname}' from \`Makefile.in'.
 571 # If you are thinking about editing it, you should seriously consider
 572 # editing \`Makefile.in' itself, or running \`${progname}' instead."
 573  /bin/sed < lib-src/Makefile.in                         \
 574  -e '/^# DIST: /d'                                      \
 575  -e 's;^\(CFLAGS=\).*$;\1'"${c_switch_site};"           \
 576  -e 's;^\(LOADLIBES=\).*$;\1'"${libsrc_libs};"          \
 577  -e 's;^\(CC=\).*$;\1'"${cc};") > lib-src/Makefile.tmp
 578 ./move-if-change lib-src/Makefile.tmp lib-src/Makefile
 579 # Remind people not to edit this.
 580 chmod -w lib-src/Makefile
 581
 582
 583 # Create a verbal description of what we have done.
 584 message="Configured for machine \`${machine}' running \`${opsystem}'.
 585 The following values have been set in ./Makefile and ./build-install:
 586   \`make install' or \`build-install' will placed executables in
 587         ${bindir}.
 588   Emacs's lisp search path will be
 589         \`${lisppath}'.
 590   Emacs will look for its architecture-independent data in
 591         ${datadir}.
 592   Emacs will look for its utility programs and other architecture-
 593   dependent data in
 594         ${libdir}.
 595   Emacs will keep track of file-locking in
 596         ${lockdir}.
 597 The following values have been set in src/config.h:
 598   Should Emacs use the GNU version of malloc?             ${gnu_malloc}${gnu_malloc_reason}
 599   Should Emacs use the relocating allocator for buffers?  ${rel_alloc}
 600   Should Emacs support a floating point data type?        ${lisp_float_type}
 601   What window system should Emacs use?                    ${window_system}
 602   What compiler should emacs be built with?               ${cc}
 603   Should the compilation use \`-g' and/or \`-O'?           ${c_switch_site- neither}"
 604
 605 # Document the damage we have done by writing config.status.
 606
 607 echo '#!/bin/sh' > config.status
 608
 609 echo "# This file is generated by \`${progname}.'
 610 # If you are thinking about editing it, you should seriously consider
 611 # running \`${progname}' instead.
 612 " >> config.status
 613 echo "${message}" | sed -e 's/^/# /' >> config.status
 614 echo "'${progname}' ${arguments} "'$@' >> config.status
 615 # Remind people not to edit this.
 616 chmod -w config.status
 617 chmod +x config.status
 618
 619 # Print the description.
 620 echo
 621 echo "${message}"
 622
 623 exit 0