configure1.in

   1
   2 ### The above line is deliberately left blank.  If it starts with a #,
   3 ### some CSH's will think this is a csh script.
   4
   5 #### Configuration script for GNU Emacs
   6 #### Copyright (C) 1992 Free Software Foundation, Inc.
   7
   8 ### This file is part of GNU Emacs.
   9
  10 ### GNU Emacs 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 1, or (at your option)
  13 ### any later version.
  14
  15 ### GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
  22 ### the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ### Shell script to edit files and make symlinks in preparation for
  25 ### compiling Emacs.
  26 ###
  27 ### Usage: configure config_name
  28 ###
  29 ### If configure succeeds, it leaves its status in config.status.
  30 ### If configure fails after disturbing the status quo,
  31 ###     config.status is removed.
  32 ###
  33
  34
  35 ### Remove any leading "." elements from the path name.  If we don't
  36 ### remove them, then another "./" will be prepended to the file name
  37 ### each time we use config.status, and the program name will get larger
  38 ### and larger.  This wouldn't be a problem, except that since progname
  39 ### gets recorded in all the Makefiles this script produces,
  40 ### move-if-change thinks they're different when they're not.
  41 ###
  42 ### It would be nice if we could put the ./ in a \( \) group and then
  43 ### apply the * operator to that, so we remove as many leading ./././'s
  44 ### as are present, but some seds (like Ultrix's sed) don't allow you to
  45 ### apply * to a \( \) group.  Bleah.
  46 progname="`echo $0 | sed 's:^\./::'`"
  47
  48
  49 #### Usage messages.
  50
  51 short_usage="Type \`${progname} --usage' for more information about options."
  52
  53 long_usage="Usage: ${progname} CONFIGURATION [-OPTION[=VALUE] ...]
  54
  55 Set compilation and installation parameters for GNU Emacs, and report.
  56 CONFIGURATION specifies the machine and operating system to build for.
  57 For example:
  58         ${progname} sparc-sun-sunos4.1
  59 configures Emacs to build on a Sun Sparc machine running SunOS 4.1, and
  60         ${progname} decstation
  61 configures Emacs to run on a DECstation running Ultrix.  See \`etc/MACHINES'.
  62
  63 The --with-x, --with-x11 and --with-x10 options specify what window
  64         system to use; if all are omitted, use X11 if present.  If you
  65         don't want X, specify \`--with-x=no'.
  66
  67 The --with-gcc option says that the build process should use GCC to
  68         compile Emacs.  If you have GCC but don't want to use it,
  69         specify \`--with-gcc=no'.  \`configure' tries to guess whether
  70         or not you have GCC by searching your executable path, but if
  71         it guesses incorrectly, you may need to use this.
  72
  73 The --srcdir=DIR option specifies that the configuration and build
  74         processes should look for the Emacs source code in DIR, when
  75         DIR is not the current directory.  This option doesn't work yet.
  76
  77 If successful, ${progname} leaves its status in config.status.  If
  78 unsuccessful after disturbing the status quo, it removes config.status."
  79
  80
  81 #### Option processing.
  82
  83 ### These are the names of CPP symbols we want to define or leave undefined
  84 ### in src/config.h; their values are given by the shell variables of the same
  85 ### names.
  86 config_h_opts=" \
  87 HAVE_X_WINDOWS HAVE_X11 HAVE_X_MENU \
  88 SIGTYPE GNU_MALLOC REL_ALLOC LISP_FLOAT_TYPE "
  89
  90 ### Record all the arguments, so we can save them in config.status.
  91 arguments="$@"
  92
  93 while [ $# != 0 ]; do
  94   arg="$1"
  95   case "${arg}" in
  96
  97     ## Anything starting with a hyphen we assume is an option.
  98     -* )
  99
 100       ## Separate the switch name from the value it's being given.
 101       case "${arg}" in
 102         -*=*)
 103           opt=`echo ${arg} | sed 's:^-*\([^=]*\)=.*$:\1:'`
 104           val=`echo ${arg} | sed 's:^-*[^=]*=\(.*\)$:\1:'`
 105           valomitted=no
 106         ;;
 107         -*)
 108           ## If FOO is a boolean argument, --FOO is equivalent to
 109           ## --FOO=yes.  Otherwise, the value comes from the next
 110           ## argument - see below.
 111           opt=`echo ${arg} | sed 's:^-*\(.*\)$:\1:'`
 112           val="yes"
 113           valomitted=yes
 114         ;;
 115       esac
 116
 117       ## Change `-' in the option name to `_'.
 118       opt="`echo ${opt} | tr - _`"
 119
 120       ## Process the option.
 121       case "${opt}" in
 122
 123         ## Has the user specified which window systems they want to support?
 124         "with_x" | "with_x11" | "with_x10" )
 125           ## Make sure the value given was either "yes" or "no".
 126           case "${val}" in
 127             y | ye | yes )      val=yes ;;
 128             n | no )            val=no  ;;
 129             * )
 130               (echo "${progname}: the \`--${opt}' option is supposed to have a boolean value.
 131 Set it to either \`yes' or \`no'."
 132                echo "${short_usage}") >&2
 133               exit 1
 134             ;;
 135           esac
 136           eval "${opt}=\"${val}\""
 137         ;;
 138
 139         ## Has the user specified whether or not they want GCC?
 140         "with_gcc" )
 141           ## Make sure the value given was either "yes" or "no".
 142           case "${val}" in
 143             y | ye | yes )      val=yes ;;
 144             n | no )            val=no  ;;
 145             * )
 146               (echo "${progname}: the \`--${opt}' option is supposed to have a boolean value.
 147 Set it to either \`yes' or \`no'."
 148                echo "${short_usage}") >&2
 149               exit 1
 150             ;;
 151           esac
 152           eval "${opt}=\"${val}\""
 153         ;;
 154
 155         ## Has the user specified a source directory?
 156         "srcdir" )
 157           ## If the value was omitted, get it from the next argument.
 158           if [ "${valomitted}" = "yes" ]; then
 159             ## Get the next argument from the argument list, if there is one.
 160             if [ $# = 1 ]; then
 161               (echo "${progname}: You must give a value for the \`--${opt}' option, as in
 162     \`--${opt}=FOO'."
 163                echo "${short_usage}") >&2
 164               exit 1
 165             fi
 166             shift; val="$1"
 167           fi
 168           srcdir="${val}"
 169
 170           echo "${progname}: Beware - the \`--srcdir' option doesn't work yet." >&2
 171         ;;
 172
 173         ## Has the user asked for some help?
 174         "usage" | "help" )
 175           echo "${long_usage}" | more
 176           exit
 177         ;;
 178
 179         ## We ignore all other options silently.
 180       esac
 181     ;;
 182
 183     ## Anything not starting with a hyphen we assume is a
 184     ## configuration name.
 185     *)
 186       configuration=${arg}
 187     ;;
 188
 189   esac
 190   shift
 191 done
 192
 193 if [ "${configuration}" = "" ]; then
 194   (echo "${progname}: You must specify a configuration name as an argument."
 195    echo "${short_usage}") >&2
 196   exit 1
 197 fi
 198
 199
 200 #### Decide where the source is.
 201 case "${srcdir}" in
 202
 203   ## If it's not specified, see if  `.' or `..' might work.
 204   "" )
 205     if [ -f "./src/lisp.h" -a -f "./lisp/version.el" ]; then
 206       srcdir=`pwd`
 207     else
 208       if [ -f "../src/lisp.h" -a -f "../lisp/version.el" ]; then
 209         srcdir=`(cd .. ; pwd)`
 210       else
 211         (echo "\
 212 ${progname}: Neither the current directory nor its parent seem to
 213 contain the Emacs sources.  If you do not want to build Emacs in its
 214 source tree, you should run \`${progname}' in the directory in which
 215 you wish to build Emacs, using its \`--srcdir' option to say where the
 216 sources may be found."
 217          echo "${short_usage}") >&2
 218         exit 1
 219       fi
 220     fi
 221   ;;
 222
 223   ## Otherwise, check if the directory they specified is okay.
 224   * )
 225     if [ ! -d "${srcdir}" -o ! -f "${srcdir}/src/lisp.h" -o ! -f "${srcdir}/lisp/version.el" ]; then
 226       (echo "\
 227 ${progname}: The directory specified with the \`--srcdir' option,
 228 \`${srcdir}', doesn't seem to contain the Emacs sources.  You should
 229 either run the \`${progname}' script at the top of the Emacs source
 230 tree, or use the \`--srcdir' option to specify where the Emacs sources
 231 are."
 232        echo "${short_usage}") >&2
 233       exit 1
 234     fi
 235   ;;
 236
 237 esac
 238
 239 ### Make the necessary directories, if they don't exist.
 240 if [ ! -d ./src ]; then
 241   mkdir ./src
 242 fi
 243 if [ ! -d ./lib-src ]; then
 244   mkdir ./lib-src
 245 fi
 246 if [ ! -d ./cpp ]; then
 247   mkdir ./cpp
 248 fi
 249 if [ ! -d ./oldXMenu ]; then
 250   mkdir ./oldXMenu
 251 fi
 252
 253
 254 #### Given the configuration name, set machfile and opsysfile to the
 255 #### names of the m/*.h and s/*.h files we should use.
 256
 257 ### Canonicalize the configuration name.
 258 echo "Checking the configuration name."
 259 if configuration=`${srcdir}/config.sub "${configuration}"` ; then : ; else
 260   exit $?
 261 fi
 262
 263 ### You would hope that you could choose an m/*.h file pretty much
 264 ### based on the machine portion of the configuration name, and an s-
 265 ### file based on the operating system portion.  However, it turns out
 266 ### that each m/*.h file is pretty manufacturer-specific - for
 267 ### example, apollo.h, hp9000s300.h, mega68k, news.h, and tad68k are
 268 ### all 68000 machines; mips.h, pmax.h, and news-risc are all MIPS
 269 ### machines.  So we basically have to have a special case for each
 270 ### configuration name.
 271
 272 ### As far as handling version numbers on operating systems is
 273 ### concerned, make sure things will fail in a fixable way.  If
 274 ### /etc/MACHINES doesn't say anything about version numbers, be
 275 ### prepared to handle anything reasonably.  If version numbers
 276 ### matter, be sure /etc/MACHINES says something about it.
 277 machine='' opsys='' unported='false'
 278 case "${configuration}" in
 279
 280   ## Alliant machines
 281   ## Strictly speaking, we need the version of the alliant operating
 282   ## system to choose the right machine file, but currently the
 283   ## configuration name doesn't tell us enough to choose the right
 284   ## one; we need to give alliants their own operating system name to
 285   ## do this right.  When someone cares, they can help us.
 286   fx80-alliant-* )
 287     machine=alliant4 opsys=bsd4-2
 288   ;;
 289   i860-alliant-* )
 290     machine=alliant-2800 opsys=bsd4-3
 291   ;;
 292
 293   ## Altos 3068
 294   m68*-altos-sysv* )
 295     machine=altos opsys=usg5-2
 296   ;;
 297
 298   ## Amdahl UTS
 299   580-amdahl-sysv* )
 300     machine=amdahl opsys=usg5-2-2
 301   ;;
 302
 303   ## Appallings - I mean, Apollos - running Domain
 304   m68*-apollo* )
 305     machine=apollo opsysfile=bsd4-2.h
 306   ;;
 307
 308   ## AT&T 3b2, 3b5, 3b15, 3b20
 309   we32k-att-sysv* )
 310     machine=att3b opsys=usg5-2-2
 311   ;;
 312
 313   ## AT&T 3b1 - The Mighty Unix PC!
 314   m68*-att-sysv* )
 315     machine=7300 opsys=usg5-2-2
 316   ;;
 317
 318   ## Bull sps7
 319   m68*-bull-sysv* )
 320     machine=sps7 opsys=usg5-2
 321   ;;
 322
 323   ## CCI 5/32, 6/32 -- see "Tahoe".
 324
 325   ## Celerity
 326   ## I don't know what configuration name to use for this; config.sub
 327   ## doesn't seem to know anything about it.  Hey, Celerity users, get
 328   ## in touch with us!
 329   celerity-celerity-bsd* )
 330     machine=celerity opsys=bsd4-2
 331   ;;
 332
 333   ## Clipper
 334   ## What operating systems does this chip run that Emacs has been
 335   ## tested on?
 336   clipper-* )
 337     machine=clipper
 338     ## We'll use the catch-all code at the bottom to guess the
 339     ## operating system.
 340   ;;
 341
 342   ## Convex
 343   *-convex-bsd* )
 344     machine=convex opsys=bsd4-3
 345   ;;
 346
 347   ## Cubix QBx/386
 348   i386-cubix-sysv* )
 349     machine=intel386 opsys=usg5-3
 350   ;;
 351
 352   ## Cydra 5
 353   cydra*-cydrome-sysv* )
 354     machine=cydra5 opsys=usg5-3
 355   ;;
 356
 357   ## DECstations
 358   mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0 | mips-dec-bsd4.2 )
 359     machine=pmax opsys=bsd4-2
 360   ;;
 361   mips-dec-ultrix* | mips-dec-bsd* )
 362     machine=pmax opsys=bsd4-3
 363   ;;
 364   mips-dec-osf* )
 365     machine=pmax opsys=osf1
 366   ;;
 367
 368   ## Motorola Delta machines
 369   m68*-motorola-sysv* )
 370     machine=delta opsys=usg5-3
 371   ;;
 372   m88k-motorola-sysv* | m88k-motorola-m88kbcs* )
 373     machine=delta88k opsys=usg5-3
 374   ;;
 375
 376   ## Dual machines
 377   m68*-dual-sysv* )
 378     machine=dual opsys=usg5-2
 379   ;;
 380   m68*-dual-uniplus* )
 381     machine=dual opsys=unipl5-2
 382   ;;
 383
 384   ## Elxsi 6400
 385   elxsi-elxsi-sysv* )
 386     machine=elxsi opsys=usg5-2
 387   ;;
 388
 389   ## Encore machines
 390   ns16k-encore-bsd* )
 391     machine=ns16000 opsys=umax
 392   ;;
 393
 394   ## The GEC 93 - apparently, this port isn't really finished yet.
 395
 396   ## Gould Power Node and NP1
 397   pn-gould-bsd4.2 )
 398     machine=gould opsys=bsd4-2
 399   ;;
 400   pn-gould-bsd4.3 )
 401     machine=gould opsys=bsd4-3
 402   ;;
 403   np1-gould-bsd* )
 404     machine=gould-np1 opsys=bsd4-3
 405   ;;
 406
 407   ## Honeywell XPS100
 408   xps*-honeywell-sysv* )
 409     machine=xps100 opsys=usg5-2
 410   ;;
 411
 412   ## HP 9000 series 200 or 300
 413   m68*-hp-bsd* )
 414     machine=hp9000s300 opsys=bsd4-3
 415   ;;
 416   ## HP/UX 8 doesn't run on these machines, so use HP/UX 7.
 417   m68*-hp-hpux* )
 418     machine=hp9000s300 opsys=hpux
 419   ;;
 420
 421   ## HP 9000 series 800, running HP/UX
 422   hppa1.0-hp-hpux* )
 423     machine=hp9000s800 opsys=hpux
 424   ;;
 425
 426   ## Orion machines
 427   orion-orion-bsd* )
 428     machine=orion opsys=bsd4-2
 429   ;;
 430   clipper-orion-bsd* )
 431     machine=orion105 opsys=bsd4-2
 432   ;;
 433
 434   ## IBM machines
 435   i386-ibm-aix1.1 )
 436     machine=ibmps2-aix opsys=usg5-2-2
 437   ;;
 438   i386-ibm-aix1.2 )
 439     machine=ibmps2-aix opsys=usg5-3
 440   ;;
 441   rs6000-ibm-aix* )
 442     machine=ibmrs6000 opsys=aix3-1
 443   ;;
 444   romp-ibm-bsd* )
 445     machine=ibmrt opsys=bsd4-2
 446   ;;
 447   romp-ibm-aix* )
 448     machine=ibmrt-aix opsys=usg5-2-2
 449   ;;
 450
 451   ## Integrated Solutions `Optimum V'
 452   m68*-isi-bsd4.2 )
 453     machine=isi-ov opsys=bsd4-2
 454   ;;
 455   m68*-isi-bsd4.3 )
 456     machine=isi-ov opsys=bsd4-3
 457   ;;
 458
 459   ## Intel 386 machines where we do care about the manufacturer
 460   i[34]86-intsys-sysv* )
 461     machine=is386 opsys=usg5-2-2
 462   ;;
 463   ## Intel 386 machines where we don't care about the manufacturer
 464   i[34]86-* )
 465     machine=intel386
 466     case "${configuration}" in
 467       *-isc1.* | *-isc2.[01]* ) opsys=386-ix ;;
 468       *-isc* )                  opsys=isc2-2 ;;
 469       *-esix* )                 opsys=esix ;;
 470       *-xenix* )                opsys=xenix ;;
 471       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 472     esac
 473   ;;
 474
 475   ## Silicon Graphics machines
 476   ## Iris 2500 and Iris 2500 Turbo (aka the Iris 3030)
 477   m68*-sgi-iris3.5 )
 478     machine=irist opsys=iris3-5
 479   ;;
 480   m68*-sgi-iris3.6 | m68*-sgi-iris*)
 481     machine=irist opsys=iris3-6
 482   ;;
 483   ## Iris 4D
 484   mips-sgi-irix3.* )
 485     machine=iris4d opsys=irix3-3
 486   ;;
 487   mips-sgi-irix4.* | mips-sgi-irix* )
 488     machine=iris4d opsys=irix4-0
 489   ;;
 490
 491   ## Masscomp machines
 492   m68*-masscomp-rtu )
 493     machine=masscomp opsys=rtu
 494   ;;
 495
 496   ## Megatest machines
 497   m68*-megatest-bsd* )
 498     machine=mega68 opsys=bsd4-2
 499   ;;
 500
 501   ## Workstations sold by MIPS
 502   ## This is not necessarily all workstations using the MIPS processor -
 503   ## Irises are produced by SGI, and DECstations by DEC.
 504
 505   ## etc/MACHINES lists mips.h and mips4.h as possible machine files,
 506   ## and usg5-2-2 and bsd4-3 as possible OS files.  The only guidance
 507   ## it gives for choosing between the alternatives seems to be "Use
 508   ## -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
 509   ## the BSD world."  I'll assume that these are instructions for
 510   ## handling two odd situations, and that every other situation
 511   ## should use mips.h and usg5-2-2, they being listed first.
 512   mips-mips-riscos4* )
 513     machine=mips4 opsys=usg5-2-2
 514   ;;
 515   mips-mips-bsd* )
 516     machine=mips opsys=bsd4-3
 517   ;;
 518   mips-mips-* )
 519     machine=mips opsys=usg5-2-2
 520   ;;
 521
 522   ## The complete machine from National Semiconductor
 523   ns32k-ns-genix* )
 524     machine=ns32000 opsys=usg5-2
 525   ;;
 526
 527   ## NCR machines
 528   m68*-ncr-sysv2* )
 529     machine=tower32 opsys=usg5-2-2
 530   ;;
 531   m68*-ncr-sysv3* )
 532     machine=tower32v3 opsys=usg5-3
 533   ;;
 534
 535   ## Nixdorf Targon 31
 536   m68*-nixdorf-sysv* )
 537     machine=targon31 opsys=usg5-2-2
 538   ;;
 539
 540   ## Nu (TI or LMI)
 541   m68*-nu-sysv* )
 542     machine=nu opsys=usg5-2
 543   ;;
 544
 545   ## Plexus
 546   m68*-plexus-sysv* )
 547     machine=plexus opsys=usg5-2
 548   ;;
 549
 550   ## Prime EXL
 551   i386-prime-sysv* )
 552     machine=i386 opsys=usg5-3
 553   ;;
 554
 555   ## Pyramid machines
 556   ## I don't really have any idea what sort of processor the Pyramid has,
 557   ## so I'm assuming it is its own architecture.
 558   pyramid-pyramid-bsd* )
 559     machine=pyramid opsys=bsd4-2
 560   ;;
 561
 562   ## Sequent Balance
 563   ns32k-sequent-bsd4.2 )
 564     machine=sequent opsys=bsd4-2
 565   ;;
 566   ns32k-sequent-bsd4.3 )
 567     machine=sequent opsys=bsd4-3
 568   ;;
 569   ## Sequent Symmetry
 570   i386-sequent-bsd* )
 571     machine=symmetry opsys=bsd4-3
 572   ;;
 573
 574   ## SONY machines
 575   m68*-sony-bsd4.2 )
 576     machine=news opsys=bsd4-2
 577   ;;
 578   m68*-sony-bsd4.3 )
 579     machine=news opsys=bsd4-3
 580   ;;
 581   mips-sony-bsd* )
 582     machine=news-risc opsys=bsd4-3
 583   ;;
 584
 585   ## Stride
 586   m68*-stride-sysv* )
 587     machine=stride opsys=usg5-2
 588   ;;
 589
 590   ## Suns
 591   *-sun-sunos* | *-sun-bsd* )
 592     case "${configuration}" in
 593       m68*-sunos1* )    machine=sun1 ;;
 594       m68*-sunos2* )    machine=sun2 ;;
 595       m68* )            machine=sun3 ;;
 596       i[34]86* )        machine=sun386 ;;
 597       sparc* )          machine=sparc ;;
 598       * )               unported=true ;;
 599     esac
 600     case "${configuration}" in
 601       *-sunos4.0*         ) opsys=sunos4-0 ;;
 602       *-sunos4* | *-sunos ) opsys=sunos4-1 ;;
 603       *                   ) opsys=bsd4-2   ;;
 604     esac
 605   ;;
 606
 607   ## Tadpole 68k
 608   m68*-tadpole-sysv* )
 609     machine=tad68k opsys=usg5-3
 610   ;;
 611
 612   ## Tahoe machines
 613   tahoe-tahoe-bsd4.2 )
 614     machine=tahoe opsys=bsd4-2
 615   ;;
 616   tahoe-tahoe-bsd4.3 )
 617     machine=tahoe opsys=bsd4-3
 618   ;;
 619
 620   ## Tandem Integrity S2
 621   mips-tandem-sysv* )
 622     machine=tandem-s2 opsys=usg5-3
 623   ;;
 624
 625   ## Tektronix 16000 box (6130?)
 626   ns16k-tektronix-bsd* )
 627     machine=ns16000 opsys=bsd4-2
 628   ;;
 629   ## Tektronix 4300
 630   ## src/m/tek4300.h hints that this is a m68k machine.
 631   m68*-tektronix-bsd* )
 632     machine=tex4300 opsys=bsd4-3
 633   ;;
 634
 635   ## Titan P2 or P3
 636   ## We seem to have lost the machine-description file titan.h!
 637   titan-titan-sysv* )
 638     machine=titan opsys=usg5-3
 639   ;;
 640
 641   ## Ustation E30 (SS5E)
 642   m68*-unisys-uniplus* )
 643     machine=ustation opsystem=unipl5-2
 644   ;;
 645
 646   ## Vaxen.
 647   vax-dec-* )
 648     machine=vax
 649     case "${configuration}" in
 650       *-bsd4.1 ) opsys=bsd4-1 ;;
 651       *-bsd4.2 | *-ultrix[0-3].* | *-ultrix4.0 ) opsys=bsd4-2 ;;
 652       *-bsd4.3 | *-ultrix* ) opsys=bsd4-3 ;;
 653       *-sysv[01]* ) opsys=usg5-0 ;;
 654       *-sysv2* ) opsys=usg5-2 ;;
 655       *-vms* ) opsys=vms ;;
 656       * ) unported=true
 657     esac
 658   ;;
 659
 660   ## Whitechapel MG1
 661   ns16k-whitechapel-* )
 662     machine=mg1
 663     ## We don't know what sort of OS runs on these; we'll let the
 664     ## operating system guessing code below try.
 665   ;;
 666
 667   ## Wicat
 668   m68*-wicat-sysv* )
 669     machine=wicat opsys=usg5-2
 670   ;;
 671
 672   * )
 673     unported=true
 674   ;;
 675 esac
 676
 677 ### If the code above didn't choose an operating system, just choose
 678 ### an operating system based on the configuration name.  You really
 679 ### only want to use this when you have no idea what the right
 680 ### operating system is; if you know what operating systems a machine
 681 ### runs, it's cleaner to make it explicit in the case statement
 682 ### above.
 683 if [ ! "${opsys}" ]; then
 684   case "${configuration}" in
 685     *-bsd4.[01] )       opsys=bsd4-1 ;;
 686     *-bsd4.2 )          opsys=bsd4-2 ;;
 687     *-bsd4.3 )          opsys=bsd4-3 ;;
 688     *-sysv0 )           opsys=usg5-0 ;;
 689     *-sysv2 )           opsys=usg5-2 ;;
 690     *-sysv2.2 )         opsys=usg5-2-2 ;;
 691     *-sysv3 )           opsys=usg5-3 ;;
 692     *-sysv4 )           opsys=usg5-4 ;;
 693     * )
 694       unported=true
 695     ;;
 696   esac
 697 fi
 698
 699 if $unported ; then
 700   (echo "${progname}: Emacs hasn't been ported to \`${configuration}' systems."
 701    echo "${progname}: Check \`etc/MACHINES' for recognized configuration names."
 702   ) >&2
 703   exit 1
 704 fi
 705
 706 machfile="m/${machine}.h"
 707 opsysfile="s/${opsys}.h"
 708
 709
 710 #### Choose a window system.
 711 echo "Checking window system."
 712 window_system=''
 713 case "${with_x}" in
 714   yes )
 715     window_system=${window_system}x11
 716   ;;
 717   no )
 718     window_system=${window_system}none
 719 esac
 720 case "${with_x11}" in
 721   yes )
 722     window_system=${window_system}x11
 723   ;;
 724 esac
 725 case "${with_x10}" in
 726   yes )
 727     window_system=${window_system}x10
 728   ;;
 729 esac
 730
 731 case "${window_system}" in
 732   "none" | "x11" | "x10" ) ;;
 733   "" )
 734     echo "  No window system specifed.  Looking for X Windows."
 735     window_system=none
 736     if [ -r /usr/lib/libX11.a -o -d /usr/include/X11 ]; then
 737       window_system=x11
 738     fi
 739   ;;
 740   * )
 741     echo "Don\'t specify the window system more than once." >&2
 742     exit 1
 743   ;;
 744 esac
 745
 746 case "${window_system}" in
 747   x11 )
 748     HAVE_X_WINDOWS=yes
 749     HAVE_X11=yes
 750     echo "  Using X11."
 751   ;;
 752   x10 )
 753     HAVE_X_WINDOWS=yes
 754     HAVE_X11=no
 755     echo "  Using X10."
 756   ;;
 757   none )
 758     HAVE_X_WINDOWS=no
 759     HAVE_X11=no
 760     echo "  Using no window system."
 761   ;;
 762 esac
 763
 764 ### If we're using X11, we should use the X menu package.
 765 HAVE_X_MENU=no
 766 case ${HAVE_X11} in
 767   yes )
 768     HAVE_X_MENU=yes
 769   ;;
 770 esac
 771
 772
 773 #### Choose a compiler.
 774 echo "Checking compilers."
 775 if [ "${with_gcc}" = "" ]; then
 776   echo "  Searching load path for GCC."
 777   temppath=`echo $PATH | sed 's/^:/.:/
 778                               s/::/:.:/g
 779                               s/:$/:./
 780                               s/:/ /g'`
 781   default_cc=`(
 782     for dir in ${temppath}; do
 783       if [ -f ${dir}/gcc ]; then echo gcc; exit 0; fi
 784     done
 785     echo cc
 786   )`
 787 else
 788   case ${with_gcc} in
 789     "yes" ) default_cc="gcc" ;;
 790     "no"  ) default_cc="cc"  ;;
 791   esac
 792 fi
 793
 794 case "${default_cc}" in
 795   "gcc" )
 796     echo "  Using GCC."
 797     default_cflags='-g -O'
 798   ;;
 799   "*" )
 800     echo "  Using the system's CC."
 801     default_cflags='-g'
 802   ;;
 803 esac
 804
 805
 806 #### What is the return type of a signal handler?
 807
 808 ### We run /usr/include/signal.h through cpp and grep for the
 809 ### declaration of the signal function.  Yuck.
 810 echo "Looking for return type of signal handler functions."
 811 signal_h_file=''
 812 if [ -r /usr/include/signal.h ]; then
 813   signal_h_file=/usr/include/signal.h
 814 elif [ -r /usr/include/sys/signal.h ]; then
 815   signal_h_file=/usr/include/sys/signal.h
 816 fi
 817 SIGTYPE=void
 818 if [ "${signal_h_file}" ]; then
 819   sigpattern='[         ]*([    ]*\*[   ]*signal[       ]*('
 820
 821   ## We make a copy whose name ends in .c, so the compiler
 822   ## won't complain about having only been given a .h file.
 823   tempcname="configure.tmp.$$.c"
 824   cp ${signal_h_file}  ${tempcname}
 825   if ${default_cc} -E ${tempcname} | grep "int${sigpattern}" > /dev/null; then
 826     SIGTYPE=int
 827   fi
 828   rm -f ${tempcname}
 829 fi
 830 echo "  Guessing that signals return \`${SIGTYPE}'."
 831
 832
 833 #### Extract some information from the operating system and machine files.
 834
 835 echo "Examining the machine- and system-dependent files to find out"
 836 echo " - which libraries the lib-src programs will want, and"
 837 echo " - whether the GNU malloc routines are usable."
 838 tempcname="configure.tmp.$$.c"
 839 echo '
 840 #include "'${srcdir}'/src/'${opsysfile}'"
 841 #include "'${srcdir}'/src/'${machfile}'"
 842 #ifndef LIBS_MACHINE
 843 #define LIBS_MACHINE
 844 #endif
 845 #ifndef LIBS_SYSTEM
 846 #define LIBS_SYSTEM
 847 #endif
 848 @configure@ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
 849 #ifdef SYSTEM_MALLOC
 850 @configure@ system_malloc=yes
 851 #else
 852 @configure@ system_malloc=no
 853 #endif
 854 ' > ${tempcname}
 855 eval `${default_cc} -E ${tempcname} \
 856       | grep '@configure@' \
 857       | sed -e 's/^@configure@//'`
 858 rm ${tempcname}
 859
 860 # Do the opsystem or machine files prohibit the use of the GNU malloc?
 861 # Assume not, until told otherwise.
 862 GNU_MALLOC=yes
 863 if [ "${system_malloc}" = "yes" ]; then
 864   GNU_MALLOC=no
 865   GNU_MALLOC_reason="
 866   (The GNU allocators don't work with this system configuration.)"
 867 fi
 868
 869 if [ ! "${REL_ALLOC}" ]; then
 870   REL_ALLOC=${GNU_MALLOC}
 871 fi
 872
 873 LISP_FLOAT_TYPE=yes
 874
 875
 876 #### Find out which version of Emacs this is.
 877 version=`grep 'defconst[         ]*emacs-version' ${srcdir}/lisp/version.el \
 878          | sed -e 's/^.*"\([0-9][0-9]*\.[0-9][0-9]*\)\..*$/\1/'`
 879 if [ ! "${version}" ]; then
 880   echo "${progname}: can't find current emacs version in
 881         \`${srcdir}/lisp/version.el'." >&2
 882   exit 1
 883 fi
 884
 885
 886 #### Make the proper settings in `src/config.h'.
 887 rm -f config.status
 888 set -e
 889
 890 echo "Making \`./src/config.h' from \`${srcdir}/src/config.h.in'."
 891 sed_flags="-e 's:@machine@:${machfile}:' -e 's:@opsystem@:${opsysfile}:'"
 892
 893 for flag in ${config_h_opts}; do
 894   val=`eval echo '$'${flag}`
 895   case ${val} in
 896     no | "")
 897       f="-e 's:.*#define ${flag}.*:/\\* #define ${flag} \\*/:'"
 898     ;;
 899     yes)
 900       f="-e 's:.*#define ${flag}.*:#define ${flag}:'"
 901     ;;
 902     *)
 903       f="-e 's:.*#define ${flag}.*:#define ${flag} ${val}:'"
 904     ;;
 905   esac
 906   sed_flags="${sed_flags} ${f}"
 907 done
 908
 909 rm -f ./src/config.h.tmp
 910 (echo "/* This file is generated by \`${progname}' from"
 911  echo "   \`${srcdir}/src/config.h.in'."
 912  echo "   If you are thinking about editing it, you should seriously consider"
 913  echo "   running \`${progname} instead, or editing"
 914  echo "   \`${srcdir}/src/config.h.in' itself."
 915  eval '/bin/sed '${sed_flags}' < "${srcdir}/src/config.h.in"'
 916 ) > src/config.h.tmp
 917 ${srcdir}/move-if-change src/config.h.tmp src/config.h
 918 ### Remind people not to edit this.
 919 chmod -w src/config.h
 920
 921
 922 #### Modify the parameters in the top-level Makefile.
 923 echo "Producing \`Makefile' from \`${srcdir}/Makefile.in'."
 924 rm -f Makefile.tmp
 925 (echo "\
 926 # This file is generated by \`${progname}' from
 927 # \`${srcdir}/Makefile.in'.
 928 # If you are thinking about editing it, you should seriously consider
 929 # running \`${progname}' instead, or editing
 930 # \`${srcdir}/Makefile.in' itself."
 931  /bin/sed < ${srcdir}/Makefile.in                               \
 932  -e 's|^configname *=.*$|configname='"${configuration}"'|'      \
 933  -e 's|^version *=.*$|version='"${version}"'|'          \
 934  -e 's|^srcdir *=.*$|srcdir='"${srcdir}"'|'                     \
 935  -e 's|^CC *=.*$|CC='"${default_cc}"'|'                 \
 936  -e 's|^CONFIG_CFLAGS *=.*$|CONFIG_CFLAGS='"${default_cflags}"'|'       \
 937  -e 's|^LOADLIBES *=.*$|LOADLIBES='"${libsrc_libs}"'|'  \
 938  -e '/^# DIST: /d') > Makefile.tmp
 939 ${srcdir}/move-if-change Makefile.tmp Makefile
 940
 941 ### I'm commenting out this section until I bring the `build-install' script
 942 ### into line with the rest of the configuration stuff.
 943
 944 ### # Modify the parameters in the `build-install' script.
 945 ### echo "Producing \`./build-install' from \`${srcdir}/build-install.in'."
 946 ### rm -f ./build-install.tmp
 947 ### (echo "\
 948 ### # This file is generated by \`${progname}' from \`${srcdir}/build-install.in'.
 949 ### # If you are thinking about editing it, you should seriously consider
 950 ### # editing \`./build-install.in' itself, or running \`${progname}' instead."
 951 ###  /bin/sed < ${srcdir}/build-install.in                      \
 952 ###  -e 's;^\(prefix=\).*$;\1'"${prefix};"                      \
 953 ###  -e 's;^\(bindir=\).*$;\1'"${bindir};"                      \
 954 ###  -e 's;^\(lisppath=\).*$;\1'"${lisppath};"          \
 955 ###  -e 's;^\(datadir=\).*$;\1'"${datadir};"            \
 956 ###  -e 's;^\(lockdir=\).*$;\1'"${lockdir};"            \
 957 ###  -e 's;^\(libdir=\).*$;\1'"${libdir};") > ./build-install.tmp
 958 ### ${srcdir}/move-if-change build-install.tmp build-install
 959 ### # Remind people not to edit this.
 960 ### chmod -w build-install
 961 ### chmod +x build-install
 962
 963
 964 #### Describe the results.
 965
 966 ### Create a verbal description of what we have done.
 967 message="Configured for \`${configuration}'.
 968
 969   What operating system and machine description files should Emacs use?
 970         \`${opsysfile}' and \`${machfile}'
 971   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
 972   Should Emacs use the relocating allocator for buffers?  ${REL_ALLOC}
 973   What window system should Emacs use?                    ${window_system}
 974   What compiler should emacs be built with?               ${default_cc}
 975   Should the compilation use \`-g' and/or \`-O'?            ${default_cflags- neither}"
 976
 977 ### Write config.status, documenting the damage we have done.
 978
 979 (echo "\
 980 #!/bin/sh
 981 ### This file is generated by \`${progname}.'
 982 ### If you are thinking about editing it, you should seriously consider
 983 ### running \`${progname}' instead.
 984 "
 985  echo "${message}" | sed -e 's/^/# /'
 986  echo "exec '${progname}' ${arguments} "'$@') > config.status
 987
 988 ### Remind people not to edit this.
 989 chmod -w config.status
 990 chmod +x config.status
 991
 992 ### Print the description.
 993 echo
 994 echo "${message}"
 995
 996 exit 0