configure.in

   1 dnl  Autoconf script for GNU Emacs
   2 dnl To rebuild the `configure' script from this, execute the command
   3 dnl     autoconf
   4 dnl in the directory containing this script.
   5 dnl
   6 dnl  Copyright (C) 1994, 1995, 1996, 1999, 2000 Free Software Foundation, Inc.
   7 dnl
   8 dnl  This file is part of GNU Emacs.
   9 dnl
  10 dnl  GNU Emacs is free software; you can redistribute it and/or modify
  11 dnl  it under the terms of the GNU General Public License as published by
  12 dnl  the Free Software Foundation; either version 2, or (at your option)
  13 dnl  any later version.
  14 dnl
  15 dnl  GNU Emacs is distributed in the hope that it will be useful,
  16 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 dnl  GNU General Public License for more details.
  19 dnl
  20 dnl  You should have received a copy of the GNU General Public License
  21 dnl  along with GNU Emacs; see the file COPYING.  If not, write to the
  22 dnl  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 dnl  Boston, MA 02111-1307, USA.
  24
  25 AC_PREREQ(2.8)dnl
  26 AC_INIT(src/lisp.h)
  27 AC_CONFIG_HEADER(src/config.h:src/config.in)
  28
  29 lispdir='${datadir}/emacs/${version}/lisp'
  30 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  31 '${datadir}/emacs/site-lisp:${datadir}/emacs/${version}/leim'
  32 lisppath='${locallisppath}:${lispdir}'
  33 etcdir='${datadir}/emacs/${version}/etc'
  34 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  35 docdir='${datadir}/emacs/${version}/etc'
  36
  37 AC_ARG_WITH(gcc,
  38 [  --without-gcc           don't use GCC to compile Emacs if GCC is found])
  39 AC_ARG_WITH(pop,
  40 [  --without-pop           don't support POP mail retrieval with movemail],
  41 [if test "$withval" = yes; then
  42    AC_DEFINE(MAIL_USE_POP)
  43 else :
  44 fi],
  45 AC_DEFINE(MAIL_USE_POP))
  46 AC_ARG_WITH(kerberos,
  47 [  --with-kerberos         support Kerberos-authenticated POP],
  48 [AC_DEFINE(KERBEROS)])
  49 AC_ARG_WITH(kerberos5,
  50 [  --with-kerberos5        support Kerberos version 5 authenticated POP],
  51 [if test "${with_kerberos5+set}" = set; then
  52   if test "${with_kerberos+set}" != set; then
  53     with_kerberos=yes
  54     AC_DEFINE(KERBEROS)
  55   fi
  56 fi
  57 AC_DEFINE(KERBEROS5)])
  58 AC_ARG_WITH(hesiod,
  59 [  --with-hesiod           support Hesiod to get the POP server host],
  60 [AC_DEFINE(HESIOD)])
  61 dnl This should be the last --with option, because --with-x is
  62 dnl added later on when we find the path of X, and it's best to
  63 dnl keep them together visually.
  64 AC_ARG_WITH(x-toolkit,
  65 [  --with-x-toolkit=KIT    use an X toolkit (KIT = yes/lucid/athena/motif/no)],
  66 [         case "${withval}" in
  67             y | ye | yes )      val=athena ;;
  68             n | no )            val=no  ;;
  69             l | lu | luc | luci | lucid )       val=lucid ;;
  70             a | at | ath | athe | athen | athena )      val=athena ;;
  71             m | mo | mot | moti | motif )       val=motif ;;
  72 dnl These don't currently work.
  73 dnl         o | op | ope | open | open- | open-l | open-lo \
  74 dnl             | open-loo | open-look )        val=open-look ;;
  75             * )
  76 dnl AC_MSG_ERROR([the \`--with-x-toolkit' option is supposed to have a value
  77 dnl which is \`yes', \`no', \`lucid', \`athena', \`motif' or \`open-look'.])
  78 AC_MSG_ERROR([\`--with-x-toolkit=$withval' is invalid\;
  79 this option's value should be \`yes', \`no', \`lucid', \`athena', or \`motif'.
  80 Currently, \`yes', \`athena' and \`lucid' are synonyms.])
  81             ;;
  82           esac
  83           with_x_toolkit=$val
  84 ])
  85 AC_ARG_WITH(xpm,
  86 [  --with-xpm              use -lXpm for displaying XPM images])
  87 AC_ARG_WITH(jpeg,
  88 [  --with-jpeg             use -ljpeg for displaying JPEG images])
  89 AC_ARG_WITH(tiff,
  90 [  --with-tiff             use -ltiff for displaying TIFF images])
  91 AC_ARG_WITH(gif,
  92 [  --with-gif              use -lungif for displaying GIF images])
  93 AC_ARG_WITH(png,
  94 [  --with-png              use -lpng for displaying PNG images])
  95 AC_ARG_WITH(toolkit-scroll-bars,
  96 [  --without-toolkit-scroll-bars
  97                            don't use Motif or Xaw3d scroll bars])
  98 AC_ARG_WITH(xim,
  99 [  --without-xim           don't use X11 XIM])
 100
 101 #### Make srcdir absolute, if it isn't already.  It's important to
 102 #### avoid running the path through pwd unnecessary, since pwd can
 103 #### give you automounter prefixes, which can go away.  We do all this
 104 #### so Emacs can find its files when run uninstalled.
 105 case "${srcdir}" in
 106   /* ) ;;
 107   . )
 108     ## We may be able to use the $PWD environment variable to make this
 109     ## absolute.  But sometimes PWD is inaccurate.
 110     ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 111     unset CDPATH
 112     if test "${PWD}" != "" && test "`(cd ${PWD} ; sh -c pwd)`" = "`pwd`"  ;
 113     then
 114       srcdir="$PWD"
 115     else
 116       srcdir="`(cd ${srcdir}; pwd)`"
 117     fi
 118   ;;
 119   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
 120 esac
 121
 122 #### Check if the source directory already has a configured system in it.
 123 if test `pwd` != `(cd ${srcdir} && pwd)` \
 124    && test -f "${srcdir}/src/config.h" ; then
 125   AC_MSG_WARN([The directory tree \`${srcdir}' is being used
 126    as a build directory right now; it has been configured in its own
 127    right.  To configure in another directory as well, you MUST
 128    use GNU make.  If you do not have GNU make, then you must
 129    now do \`make distclean' in ${srcdir},
 130    and then run $0 again.])
 131
 132 changequote(, )dnl
 133   extrasub='/^VPATH[     ]*=/c\
 134 changequote([, ])dnl
 135 vpath %.c $(srcdir)\
 136 vpath %.h $(srcdir)\
 137 vpath %.y $(srcdir)\
 138 vpath %.l $(srcdir)\
 139 vpath %.s $(srcdir)\
 140 vpath %.in $(srcdir)\
 141 vpath %.texi $(srcdir)'
 142 fi
 143
 144 #### Given the configuration name, set machfile and opsysfile to the
 145 #### names of the m/*.h and s/*.h files we should use.
 146
 147 ### Canonicalize the configuration name.
 148
 149 AC_CANONICAL_HOST
 150 canonical=$host
 151 configuration=$host_alias
 152
 153 changequote(, )dnl
 154
 155 ### If you add support for a new configuration, add code to this
 156 ### switch statement to recognize your configuration name and select
 157 ### the appropriate operating system and machine description files.
 158
 159 ### You would hope that you could choose an m/*.h file pretty much
 160 ### based on the machine portion of the configuration name, and an s-
 161 ### file based on the operating system portion.  However, it turns out
 162 ### that each m/*.h file is pretty manufacturer-specific - for
 163 ### example, apollo.h, hp9000s300.h, mega68k, news.h, and tad68k are
 164 ### all 68000 machines; mips.h, pmax.h, and news-risc are all MIPS
 165 ### machines.  So we basically have to have a special case for each
 166 ### configuration name.
 167 ###
 168 ### As far as handling version numbers on operating systems is
 169 ### concerned, make sure things will fail in a fixable way.  If
 170 ### /etc/MACHINES doesn't say anything about version numbers, be
 171 ### prepared to handle anything reasonably.  If version numbers
 172 ### matter, be sure /etc/MACHINES says something about it.
 173 ###
 174 ### Eric Raymond says we should accept strings like "sysvr4" to mean
 175 ### "System V Release 4"; he writes, "The old convention encouraged
 176 ### confusion between `system' and `release' levels'."
 177
 178 machine='' opsys='' unported=no
 179 case "${canonical}" in
 180
 181   ## NetBSD ports
 182   *-*-netbsd* )
 183     opsys=netbsd
 184     case "${canonical}" in
 185       alpha*-*-netbsd*) machine=alpha ;;
 186       i[3456]86-*-netbsd*) machine=intel386 ;;
 187       m68k-*-netbsd*)
 188                         # This is somewhat bogus.
 189                         machine=hp9000s300 ;;
 190       powerpc-apple-netbsd*) machine=macppc ;;
 191       mips-*-netbsd*)   machine=pmax ;;
 192       mipsel-*-netbsd*) machine=pmax ;;
 193       ns32k-*-netbsd*)  machine=ns32000 ;;
 194       powerpc-*-netbsd*) machine=macppc ;;
 195       sparc-*-netbsd*)  machine=sparc ;;
 196       vax-*-netbsd*)    machine=vax ;;
 197       arm-*-netbsd*)    machine=arm ;;
 198     esac
 199   ;;
 200
 201   ## OpenBSD ports
 202   *-*-openbsd* )
 203     opsys=openbsd
 204     case "${canonical}" in
 205       alpha*-*-openbsd*)        machine=alpha ;;
 206       i386-*-openbsd*)  machine=intel386 ;;
 207       m68k-*-openbsd*)  machine=hp9000s300 ;;
 208       mipsel-*-openbsd*) machine=pmax ;;
 209       ns32k-*-openbsd*) machine=ns32000 ;;
 210       sparc-*-openbsd*) machine=sparc ;;
 211       vax-*-openbsd*)   machine=vax ;;
 212     esac
 213   ;;
 214
 215   ## Acorn RISCiX:
 216   arm-acorn-riscix1.1* )
 217     machine=acorn opsys=riscix1-1
 218   ;;
 219   arm-acorn-riscix1.2* | arm-acorn-riscix )
 220     ## This name is riscix12 instead of riscix1.2
 221     ## to avoid a file name conflict on MSDOS.
 222     machine=acorn opsys=riscix12
 223   ;;
 224
 225   ## BSDI ports
 226   *-*-bsdi* )
 227     opsys=bsdi
 228     case "${canonical}" in
 229       i[345]86-*-bsdi*) machine=intel386 ;;
 230       sparc-*-bsdi*)  machine=sparc ;;
 231       powerpc-*-bsdi*)  machine=powerpc ;;
 232     esac
 233     case "${canonical}" in
 234       *-*-bsd386* | *-*-bsdi1* )        opsys=bsd386 ;;
 235       *-*-bsdi2.0* )            opsys=bsdos2 ;;
 236       *-*-bsdi2* )              opsys=bsdos2-1 ;;
 237       *-*-bsdi3* )              opsys=bsdos3 ;;
 238       *-*-bsdi4* )              opsys=bsdos4 ;;
 239     esac
 240   ;;
 241
 242   ## Alliant machines
 243   ## Strictly speaking, we need the version of the alliant operating
 244   ## system to choose the right machine file, but currently the
 245   ## configuration name doesn't tell us enough to choose the right
 246   ## one; we need to give alliants their own operating system name to
 247   ## do this right.  When someone cares, they can help us.
 248   fx80-alliant-* )
 249     machine=alliant4 opsys=bsd4-2
 250   ;;
 251   i860-alliant-* )
 252     machine=alliant-2800 opsys=bsd4-3
 253   ;;
 254
 255   ## Alpha (DEC) machines.
 256   alpha*-dec-osf* )
 257     machine=alpha opsys=osf1
 258     # This is needed to find X11R6.1 libraries for certain tests.
 259     NON_GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
 260     GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
 261     case "${canonical}" in
 262     # This is necessary on 5.0 to avoid mangling src/Makefile.
 263     # Separated out in case it causes problems on earlier versions.
 264     alpha*-dec-osf[5-9]*)
 265       opsys=osf5-0
 266       NON_GNU_CPP='cpp' ;;
 267     esac
 268   ;;
 269
 270   alpha*-*-linux-gnu* )
 271     machine=alpha opsys=gnu-linux
 272   ;;
 273
 274   arm*-*-linux-gnu* )
 275     machine=arm opsys=gnu-linux
 276   ;;
 277
 278   ppc-*-linux | \
 279   powerpc-*-linux* )
 280     machine=powerpc opsys=gnu-linux
 281   ;;
 282
 283   ## Altos 3068
 284   m68*-altos-sysv* )
 285     machine=altos opsys=usg5-2
 286   ;;
 287
 288   ## Amdahl UTS
 289   580-amdahl-sysv* )
 290     machine=amdahl opsys=usg5-2-2
 291   ;;
 292
 293   ## Apollo, Domain/OS
 294   m68*-apollo-* )
 295     machine=apollo opsys=bsd4-3
 296   ;;
 297
 298   ## AT&T 3b2, 3b5, 3b15, 3b20
 299   we32k-att-sysv* )
 300     machine=att3b opsys=usg5-2-2
 301   ;;
 302
 303   ## AT&T 3b1 - The Mighty Unix PC!
 304   m68*-att-sysv* )
 305     machine=7300 opsys=usg5-2-2
 306   ;;
 307
 308   ## Bull dpx20
 309   rs6000-bull-bosx* )
 310     machine=ibmrs6000 opsys=aix3-2
 311   ;;
 312
 313   ## Bull dpx2
 314   m68*-bull-sysv3* )
 315     machine=dpx2 opsys=usg5-3
 316   ;;
 317
 318   ## Bull sps7
 319   m68*-bull-sysv2* )
 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* | *-convex-convexos* )
 344     machine=convex opsys=bsd4-3
 345     ## Prevents spurious white space in makefiles - d.m.cooke@larc.nasa.gov
 346     NON_GNU_CPP="cc -E -P"
 347   ;;
 348
 349   ## Cubix QBx/386
 350   i[3456]86-cubix-sysv* )
 351     machine=intel386 opsys=usg5-3
 352   ;;
 353
 354   ## Cydra 5
 355   cydra*-cydrome-sysv* )
 356     machine=cydra5 opsys=usg5-3
 357   ;;
 358
 359   ## Data General AViiON Machines
 360   ## DG changed naming conventions with the release of 5.4.4.10, they
 361   ## dropped the initial 5.4 but left the intervening R.  Because of the
 362   ## R this shouldn't conflict with older versions of the OS (which I
 363   ## think were named like dgux4.*). In addition, DG new AViiONs series
 364   ## uses either Motorola M88k or Intel Pentium CPUs.
 365   m88k-dg-dguxR4.* | m88k-dg-dgux4* )
 366     machine=aviion opsys=dgux4
 367   ;;
 368   m88k-dg-dgux5.4R3* | m88k-dg-dgux5.4.3* )
 369     ## This name is dgux5-4-3 instead of dgux5-4r3
 370     ## to avoid a file name conflict on MSDOS.
 371     machine=aviion opsys=dgux5-4-3
 372   ;;
 373   m88k-dg-dgux5.4R2* | m88k-dg-dgux5.4.2* )
 374     machine=aviion opsys=dgux5-4r2
 375   ;;
 376   m88k-dg-dgux* )
 377     machine=aviion opsys=dgux
 378   ;;
 379
 380   ## Data General AViiON Intel (x86) Machines
 381   ## Exists from 5.4.3 (current i586-dg-dguxR4.11)
 382   ## Ehud Karni, 1998-may-30, ehud@unix.simonwiesel.co.il
 383   i[345]86-dg-dguxR4* )
 384     machine=aviion-intel opsys=dgux4
 385   ;;
 386
 387   ## DECstations
 388   mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0* | mips-dec-bsd4.2* )
 389     machine=pmax opsys=bsd4-2
 390   ;;
 391   mips-dec-ultrix4.[12]* | mips-dec-bsd* )
 392     machine=pmax opsys=bsd4-3
 393   ;;
 394   mips-dec-ultrix* )
 395     machine=pmax opsys=ultrix4-3
 396   ;;
 397   mips-dec-osf* )
 398     machine=pmax opsys=osf1
 399   ;;
 400   mips-dec-mach_bsd4.3* )
 401     machine=pmax opsys=mach-bsd4-3
 402   ;;
 403
 404   ## Motorola Delta machines
 405   m68k-motorola-sysv* | m68000-motorola-sysv* )
 406     machine=delta opsys=usg5-3
 407     if test -z "`type gnucc | grep 'not found'`"
 408     then
 409       if test -s /etc/167config
 410       then CC="gnucc -m68040"
 411       else CC="gnucc -m68881"
 412       fi
 413     else
 414       if test -z "`type gcc | grep 'not found'`"
 415       then CC=gcc
 416       else CC=cc
 417       fi
 418     fi
 419   ;;
 420   m88k-motorola-sysv4* )
 421     # jbotte@bnr.ca says that UNIX_System_V <hostName> 4.0 R40V4.3 m88k mc88110
 422     # needs POSIX_SIGNALS and therefore needs usg5-4-2.
 423     # I hope there are not other 4.0 versions for this machine
 424     # which really need usg5-4 instead.
 425     machine=delta88k opsys=usg5-4-2
 426   ;;
 427   m88k-motorola-sysv* | m88k-motorola-m88kbcs* )
 428     machine=delta88k opsys=usg5-3
 429   ;;
 430
 431   ## Dual machines
 432   m68*-dual-sysv* )
 433     machine=dual opsys=usg5-2
 434   ;;
 435   m68*-dual-uniplus* )
 436     machine=dual opsys=unipl5-2
 437   ;;
 438
 439   ## Elxsi 6400
 440   elxsi-elxsi-sysv* )
 441     machine=elxsi opsys=usg5-2
 442   ;;
 443
 444   ## Encore machines
 445   ns16k-encore-bsd* )
 446     machine=ns16000 opsys=umax
 447   ;;
 448
 449   ## The GEC 63 - apparently, this port isn't really finished yet.
 450   #  I'm sure we finished off the last of the machines, though.  -- fx
 451
 452   ## Gould Power Node and NP1
 453   pn-gould-bsd4.2* )
 454     machine=gould opsys=bsd4-2
 455   ;;
 456   pn-gould-bsd4.3* )
 457     machine=gould opsys=bsd4-3
 458   ;;
 459   np1-gould-bsd* )
 460     machine=gould-np1 opsys=bsd4-3
 461   ;;
 462
 463   ## Harris Night Hawk machines running CX/UX (a 5000 looks just like a 4000
 464   ## as far as Emacs is concerned).
 465   m88k-harris-cxux* )
 466     # Build needs to be different on 7.0 and later releases
 467     case "`uname -r`" in
 468        [56].[0-9] ) machine=nh4000 opsys=cxux ;;
 469        [7].[0-9] ) machine=nh4000 opsys=cxux7 ;;
 470     esac
 471     NON_GNU_CPP="/lib/cpp"
 472   ;;
 473   ## Harris ecx or gcx running CX/UX (Series 1200, Series 3000)
 474   m68k-harris-cxux* )
 475     machine=nh3000 opsys=cxux
 476   ;;
 477   ## Harris power pc NightHawk running Power UNIX (Series 6000)
 478   powerpc-harris-powerunix )
 479     machine=nh6000 opsys=powerunix
 480     NON_GNU_CPP="cc -Xo -E -P"
 481   ;;
 482   ## SR2001/SR2201 running HI-UX/MPP
 483   hppa1.1-hitachi-hiuxmpp* )
 484     machine=sr2k opsys=hiuxmpp
 485   ;;
 486   ## Honeywell XPS100
 487   xps*-honeywell-sysv* )
 488     machine=xps100 opsys=usg5-2
 489   ;;
 490
 491   ## HP 9000 series 200 or 300
 492   m68*-hp-bsd* )
 493     machine=hp9000s300 opsys=bsd4-3
 494   ;;
 495   ## HP/UX 7, 8, 9, and 10 are supported on these machines.
 496   m68*-hp-hpux* )
 497     case "`uname -r`" in
 498       ## Someone's system reports A.B8.05 for this.
 499       ## I wonder what other possibilities there are.
 500       *.B8.* ) machine=hp9000s300 opsys=hpux8 ;;
 501       *.08.* ) machine=hp9000s300 opsys=hpux8 ;;
 502       *.09.* ) machine=hp9000s300 opsys=hpux9 ;;
 503       *.1[0-9].* ) machine=hp9000s300 opsys=hpux9shr ;;
 504       *) machine=hp9000s300 opsys=hpux ;;
 505     esac
 506   ;;
 507
 508   ## HP 9000 series 700 and 800, running HP/UX
 509   hppa*-hp-hpux7* )
 510     machine=hp800 opsys=hpux
 511   ;;
 512   hppa*-hp-hpux8* )
 513     machine=hp800 opsys=hpux8
 514   ;;
 515   hppa*-hp-hpux9shr* )
 516     machine=hp800 opsys=hpux9shr
 517   ;;
 518   hppa*-hp-hpux9* )
 519     machine=hp800 opsys=hpux9
 520   ;;
 521   hppa*-hp-hpux1[0-9]* )
 522     machine=hp800 opsys=hpux10
 523   ;;
 524
 525   ## HP 9000 series 700 and 800, running HP/UX
 526   hppa*-hp-hpux* )
 527     ## Cross-compilation?  Nah!
 528     case "`uname -r`" in
 529       ## Someone's system reports A.B8.05 for this.
 530       ## I wonder what other possibilities there are.
 531       *.B8.* ) machine=hp800 opsys=hpux8 ;;
 532       *.08.* ) machine=hp800 opsys=hpux8 ;;
 533       *.09.* ) machine=hp800 opsys=hpux9 ;;
 534       *) machine=hp800 opsys=hpux10 ;;
 535     esac
 536   ;;
 537   hppa*-*-nextstep* )
 538     machine=hp800 opsys=nextstep
 539   ;;
 540
 541   ## Orion machines
 542   orion-orion-bsd* )
 543     machine=orion opsys=bsd4-2
 544   ;;
 545   clipper-orion-bsd* )
 546     machine=orion105 opsys=bsd4-2
 547   ;;
 548
 549   ## IBM machines
 550   i[3456]86-ibm-aix1.1* )
 551     machine=ibmps2-aix opsys=usg5-2-2
 552   ;;
 553   i[3456]86-ibm-aix1.[23]* | i[3456]86-ibm-aix* )
 554     machine=ibmps2-aix opsys=usg5-3
 555   ;;
 556   i370-ibm-aix*)
 557     machine=ibm370aix opsys=usg5-3
 558   ;;
 559   rs6000-ibm-aix3.1* | powerpc-ibm-aix3.1*  )
 560     machine=ibmrs6000 opsys=aix3-1
 561   ;;
 562   rs6000-ibm-aix3.2.5 | powerpc-ibm-aix3.2.5 )
 563     machine=ibmrs6000 opsys=aix3-2-5
 564   ;;
 565   rs6000-ibm-aix4.1* | powerpc-ibm-aix4.1*  )
 566     machine=ibmrs6000 opsys=aix4-1
 567   ;;
 568   rs6000-ibm-aix4.2* | powerpc-ibm-aix4.2*  )
 569     machine=ibmrs6000 opsys=aix4-2
 570   ;;
 571   rs6000-ibm-aix4.0* | powerpc-ibm-aix4.0*  )
 572     machine=ibmrs6000 opsys=aix4
 573   ;;
 574   rs6000-ibm-aix4* | powerpc-ibm-aix4*  )
 575     machine=ibmrs6000 opsys=aix4-1
 576   ;;
 577   rs6000-ibm-aix* | powerpc-ibm-aix* )
 578     machine=ibmrs6000 opsys=aix3-2
 579   ;;
 580   romp-ibm-bsd4.3* )
 581     machine=ibmrt opsys=bsd4-3
 582   ;;
 583   romp-ibm-bsd4.2* )
 584     machine=ibmrt opsys=bsd4-2
 585   ;;
 586   romp-ibm-aos4.3* )
 587     machine=ibmrt opsys=bsd4-3
 588   ;;
 589   romp-ibm-aos4.2* )
 590     machine=ibmrt opsys=bsd4-2
 591   ;;
 592   romp-ibm-aos* )
 593     machine=ibmrt opsys=bsd4-3
 594   ;;
 595   romp-ibm-bsd* )
 596     machine=ibmrt opsys=bsd4-3
 597   ;;
 598   romp-ibm-aix* )
 599     machine=ibmrt-aix opsys=usg5-2-2
 600   ;;
 601
 602   ## Integrated Solutions `Optimum V'
 603   m68*-isi-bsd4.2* )
 604     machine=isi-ov opsys=bsd4-2
 605   ;;
 606   m68*-isi-bsd4.3* )
 607     machine=isi-ov opsys=bsd4-3
 608   ;;
 609
 610   ## Intel 386 machines where we do care about the manufacturer
 611   i[3456]86-intsys-sysv* )
 612     machine=is386 opsys=usg5-2-2
 613   ;;
 614
 615   ## Prime EXL
 616   i[3456]86-prime-sysv* )
 617     machine=i386 opsys=usg5-3
 618   ;;
 619
 620   ## Sequent Symmetry running Dynix
 621   i[3456]86-sequent-bsd* )
 622     machine=symmetry opsys=bsd4-3
 623   ;;
 624
 625   ## Sequent Symmetry running ptx 4, which is a modified SVR4.
 626   i[3456]86-sequent-ptx4* | i[3456]86-sequent-sysv4* )
 627     machine=sequent-ptx opsys=ptx4
 628     NON_GNU_CPP=/lib/cpp
 629   ;;
 630
 631   ## Sequent Symmetry running DYNIX/ptx
 632   ## Use the old cpp rather than the newer ANSI one.
 633   i[3456]86-sequent-ptx* )
 634     machine=sequent-ptx opsys=ptx
 635     NON_GNU_CPP="/lib/cpp"
 636   ;;
 637
 638   ## ncr machine running svr4.3.
 639   i[3456]86-ncr-sysv4.3 )
 640     machine=ncr386 opsys=usg5-4-3
 641   ;;
 642
 643   ## Unspecified sysv on an ncr machine defaults to svr4.2.
 644   ## (Plain usg5-4 doesn't turn on POSIX signals, which we need.)
 645   i[3456]86-ncr-sysv* )
 646     machine=ncr386 opsys=usg5-4-2
 647   ;;
 648
 649   ## Intel Paragon OSF/1
 650   i860-intel-osf1* )
 651     machine=paragon opsys=osf1 NON_GNU_CPP=/usr/mach/lib/cpp
 652   ;;
 653
 654   ## Intel 860
 655   i860-*-sysv4* )
 656     machine=i860 opsys=usg5-4
 657     NON_GNU_CC="/bin/cc" # Ie, not the one in /usr/ucb/cc.
 658     NON_GNU_CPP="/usr/ccs/lib/cpp" # cc -E tokenizes macro expansion.
 659   ;;
 660
 661   ## Macintosh PowerPC
 662   powerpc*-*-linux-gnu* )
 663     machine=macppc opsys=gnu-linux
 664   ;;
 665
 666   ## Masscomp machines
 667   m68*-masscomp-rtu* )
 668     machine=masscomp opsys=rtu
 669   ;;
 670
 671   ## Megatest machines
 672   m68*-megatest-bsd* )
 673     machine=mega68 opsys=bsd4-2
 674   ;;
 675
 676   ## Workstations sold by MIPS
 677   ## This is not necessarily all workstations using the MIPS processor -
 678   ## Irises are produced by SGI, and DECstations by DEC.
 679
 680   ## etc/MACHINES lists mips.h and mips4.h as possible machine files,
 681   ## and usg5-2-2 and bsd4-3 as possible OS files.  The only guidance
 682   ## it gives for choosing between the alternatives seems to be "Use
 683   ## -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
 684   ## the BSD world."  I'll assume that these are instructions for
 685   ## handling two odd situations, and that every other situation
 686   ## should use mips.h and usg5-2-2, they being listed first.
 687   mips-mips-usg* )
 688     machine=mips4
 689     ## Fall through to the general code at the bottom to decide on the OS.
 690   ;;
 691   mips-mips-riscos4* )
 692     machine=mips4 opsys=bsd4-3
 693     NON_GNU_CC="cc -systype bsd43"
 694     NON_GNU_CPP="cc -systype bsd43 -E"
 695   ;;
 696   mips-mips-riscos5* )
 697     machine=mips4 opsys=riscos5
 698     NON_GNU_CC="cc -systype bsd43"
 699     NON_GNU_CPP="cc -systype bsd43 -E"
 700   ;;
 701   mips-mips-bsd* )
 702     machine=mips opsys=bsd4-3
 703   ;;
 704   mips-mips-* )
 705     machine=mips opsys=usg5-2-2
 706   ;;
 707
 708   ## NeXT
 709   m68*-next-* | m68k-*-nextstep* )
 710     machine=m68k opsys=nextstep
 711   ;;
 712
 713   ## The complete machine from National Semiconductor
 714   ns32k-ns-genix* )
 715     machine=ns32000 opsys=usg5-2
 716   ;;
 717
 718   ## NCR machines
 719   m68*-ncr-sysv2* | m68*-ncr-sysvr2* )
 720     machine=tower32 opsys=usg5-2-2
 721   ;;
 722   m68*-ncr-sysv3* | m68*-ncr-sysvr3* )
 723     machine=tower32v3 opsys=usg5-3
 724   ;;
 725
 726   ## NEC EWS4800
 727   mips-nec-sysv4*)
 728   machine=ews4800 opsys=ux4800
 729   ;;
 730
 731   ## Nixdorf Targon 31
 732   m68*-nixdorf-sysv* )
 733     machine=targon31 opsys=usg5-2-2
 734   ;;
 735
 736   ## Nu (TI or LMI)
 737   m68*-nu-sysv* )
 738     machine=nu opsys=usg5-2
 739   ;;
 740
 741   ## Plexus
 742   m68*-plexus-sysv* )
 743     machine=plexus opsys=usg5-2
 744   ;;
 745
 746   ## PowerPC reference platform
 747   powerpcle-*-solaris2* )
 748     machine=prep
 749     opsys=sol2-5
 750   ;;
 751
 752   ## Pyramid machines
 753   ## I don't really have any idea what sort of processor the Pyramid has,
 754   ## so I'm assuming it is its own architecture.
 755   pyramid-pyramid-bsd* )
 756     machine=pyramid opsys=bsd4-2
 757   ;;
 758
 759   ## Sequent Balance
 760   ns32k-sequent-bsd4.2* )
 761     machine=sequent opsys=bsd4-2
 762   ;;
 763   ns32k-sequent-bsd4.3* )
 764     machine=sequent opsys=bsd4-3
 765   ;;
 766
 767   ## Siemens Nixdorf
 768   mips-siemens-sysv* | mips-sni-sysv*)
 769     machine=mips-siemens opsys=usg5-4
 770     NON_GNU_CC=/usr/ccs/bin/cc
 771     NON_GNU_CPP=/usr/ccs/lib/cpp
 772   ;;
 773
 774   ## Silicon Graphics machines
 775   ## Iris 2500 and Iris 2500 Turbo (aka the Iris 3030)
 776   m68*-sgi-iris3.5* )
 777     machine=irist opsys=iris3-5
 778   ;;
 779   m68*-sgi-iris3.6* | m68*-sgi-iris*)
 780     machine=irist opsys=iris3-6
 781   ;;
 782   ## Iris 4D
 783   mips-sgi-irix3* )
 784     machine=iris4d opsys=irix3-3
 785   ;;
 786   mips-sgi-irix4* )
 787     machine=iris4d opsys=irix4-0
 788   ;;
 789   mips-sgi-irix6.5 )
 790     machine=iris4d opsys=irix6-5
 791     # Without defining _LANGUAGE_C, things get masked out in the headers
 792     # so that, for instance, grepping for `free' in stdlib.h fails and
 793     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 794     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 795     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 796   ;;
 797   mips-sgi-irix6* )
 798     machine=iris4d opsys=irix6-0
 799     # It's not clear whether -D_LANGUAGE_C is necessary as it is for 6.5,
 800     # but presumably it does no harm.
 801     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 802     # -32 probably isn't necessary in later v.6s -- anyone know which?
 803     NON_GCC_TEST_OPTIONS=-32
 804   ;;
 805   mips-sgi-irix5.[01]* )
 806     machine=iris4d opsys=irix5-0
 807   ;;
 808   mips-sgi-irix5* | mips-sgi-irix* )
 809     machine=iris4d opsys=irix5-2
 810   ;;
 811
 812   ## SONY machines
 813   m68*-sony-bsd4.2* )
 814     machine=news opsys=bsd4-2
 815   ;;
 816   m68*-sony-bsd4.3* )
 817     machine=news opsys=bsd4-3
 818   ;;
 819   m68*-sony-newsos3* | m68*-sony-news3*)
 820     machine=news opsys=bsd4-3
 821   ;;
 822   mips-sony-bsd* | mips-sony-newsos4* | mips-sony-news4*)
 823     machine=news-risc opsys=bsd4-3
 824   ;;
 825   mips-sony-newsos6* )
 826     machine=news-r6 opsys=newsos6
 827   ;;
 828   mips-sony-news* )
 829     machine=news-risc opsys=newsos5
 830   ;;
 831
 832   ## Stride
 833   m68*-stride-sysv* )
 834     machine=stride opsys=usg5-2
 835   ;;
 836
 837   ## Suns
 838   sparc-*-linux-gnu* | sparc64-*-linux-gnu* )
 839     machine=sparc opsys=gnu-linux
 840   ;;
 841
 842   *-auspex-sunos* | *-sun-sunos* | *-sun-bsd* | *-sun-solaris* \
 843     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* | powerpc*-*-solaris2* \
 844     | rs6000-*-solaris2*)
 845     case "${canonical}" in
 846       m68*-sunos1* )    machine=sun1 ;;
 847       m68*-sunos2* )    machine=sun2 ;;
 848       m68* )            machine=sun3 ;;
 849       i[3456]86-sun-sunos[34]* )        machine=sun386 ;;
 850       i[3456]86-*-* )     machine=intel386 ;;
 851       powerpcle* )      machine=powerpcle ;;
 852       powerpc* | rs6000* )  machine=ibmrs6000 ;;
 853       sparc* )          machine=sparc ;;
 854       * )               unported=yes ;;
 855     esac
 856     case "${canonical}" in
 857       ## The Sun386 didn't get past 4.0.
 858       i[3456]86-*-sunos4          ) opsys=sunos4-0 ;;
 859       *-sunos4.0*         ) opsys=sunos4-0 ;;
 860       *-sunos4.1.[3-9]*noshare )
 861                 ## This name is sunos413 instead of sunos4-1-3
 862                 ## to avoid a file name conflict on MSDOS.
 863                 opsys=sunos413
 864                 NON_GNU_CPP=/usr/lib/cpp
 865                 NON_GCC_TEST_OPTIONS=-Bstatic
 866                 GCC_TEST_OPTIONS=-static
 867                 ;;
 868       *-sunos4.1.[3-9]* | *-sunos4shr*)
 869                 opsys=sunos4shr
 870                 NON_GNU_CPP=/usr/lib/cpp
 871                 ;;
 872       *-sunos4* | *-sunos )
 873                 opsys=sunos4-1
 874                 NON_GCC_TEST_OPTIONS=-Bstatic
 875                 GCC_TEST_OPTIONS=-static
 876                 ;;
 877       *-sunos5.3* | *-solaris2.3* )
 878                 opsys=sol2-3
 879                 NON_GNU_CPP=/usr/ccs/lib/cpp
 880                 ;;
 881       *-sunos5.4* | *-solaris2.4* )
 882                 opsys=sol2-4
 883                 NON_GNU_CPP=/usr/ccs/lib/cpp
 884                 RANLIB="ar -ts"
 885                 ;;
 886       *-sunos5.5* | *-solaris2.5* )
 887                 opsys=sol2-5
 888                 NON_GNU_CPP=/usr/ccs/lib/cpp
 889                 RANLIB="ar -ts"
 890                 ;;
 891       *-sunos5* | *-solaris* )
 892                 opsys=sol2-5
 893                 NON_GNU_CPP=/usr/ccs/lib/cpp
 894                 ;;
 895       *                   ) opsys=bsd4-2   ;;
 896     esac
 897     ## Watch out for a compiler that we know will not work.
 898     case "${canonical}" in
 899      *-solaris* | *-sunos5* )
 900                 if [ "x$CC" = x/usr/ucb/cc ]; then
 901                   ## /usr/ucb/cc doesn't work;
 902                   ## we should find some other compiler that does work.
 903                   unset CC
 904                 fi
 905                 ;;
 906       *) ;;
 907     esac
 908   ;;
 909   sparc-*-nextstep* )
 910     machine=sparc opsys=nextstep
 911   ;;
 912
 913   ## Tadpole 68k
 914   m68*-tadpole-sysv* )
 915     machine=tad68k opsys=usg5-3
 916   ;;
 917
 918   ## Tahoe machines
 919   tahoe-tahoe-bsd4.2* )
 920     machine=tahoe opsys=bsd4-2
 921   ;;
 922   tahoe-tahoe-bsd4.3* )
 923     machine=tahoe opsys=bsd4-3
 924   ;;
 925
 926   ## Tandem Integrity S2
 927   mips-tandem-sysv* )
 928     machine=tandem-s2 opsys=usg5-3
 929   ;;
 930
 931   ## Tektronix XD88
 932   m88k-tektronix-sysv3* )
 933   machine=tekxd88 opsys=usg5-3
 934   ;;
 935
 936   ## Tektronix 16000 box (6130?)
 937   ns16k-tektronix-bsd* )
 938     machine=ns16000 opsys=bsd4-2
 939   ;;
 940   ## Tektronix 4300
 941   ## src/m/tek4300.h hints that this is a m68k machine.
 942   m68*-tektronix-bsd* )
 943     machine=tek4300 opsys=bsd4-3
 944   ;;
 945
 946   ## Titan P2 or P3
 947   ## We seem to have lost the machine-description file titan.h!
 948   titan-titan-sysv* )
 949     machine=titan opsys=usg5-3
 950   ;;
 951
 952   ## Ustation E30 (SS5E)
 953   m68*-unisys-uniplus* )
 954     machine=ustation opsystem=unipl5-2
 955   ;;
 956
 957   ## Vaxen.
 958   vax-dec-* )
 959     machine=vax
 960     case "${canonical}" in
 961       *-bsd4.1* )                                       opsys=bsd4-1 ;;
 962       *-bsd4.2* | *-ultrix[0-3].* | *-ultrix4.0* )      opsys=bsd4-2 ;;
 963       *-bsd4.3* | *-ultrix* )                           opsys=bsd4-3 ;;
 964       *-sysv[01]* | *-sysvr[01]* )                      opsys=usg5-0 ;;
 965       *-sysv2* | *-sysvr2* )                            opsys=usg5-2 ;;
 966       *-vms* )                                          opsys=vms ;;
 967       * )                                               unported=yes
 968     esac
 969   ;;
 970
 971   ## Whitechapel MG1
 972   ns16k-whitechapel-* )
 973     machine=mg1
 974     ## We don't know what sort of OS runs on these; we'll let the
 975     ## operating system guessing code below try.
 976   ;;
 977
 978   ## Wicat
 979   m68*-wicat-sysv* )
 980     machine=wicat opsys=usg5-2
 981   ;;
 982
 983   ## IA-64
 984   ia64*-*-linux* )
 985     machine=ia64 opsys=gnu-linux
 986   ;;
 987
 988   ## Intel 386 machines where we don't care about the manufacturer
 989   i[3456]86-*-* )
 990     machine=intel386
 991     case "${canonical}" in
 992       *-lynxos* )               opsys=lynxos ;;
 993       *-isc1.* | *-isc2.[01]* ) opsys=386-ix ;;
 994       *-isc2.2* )               opsys=isc2-2 ;;
 995       *-isc4.0* )               opsys=isc4-0 ;;
 996       *-isc4.* )                opsys=isc4-1
 997                                 GCC_TEST_OPTIONS=-posix
 998                                 NON_GCC_TEST_OPTIONS=-Xp
 999                                 ;;
1000       *-isc* )                  opsys=isc3-0 ;;
1001       *-esix5* )                opsys=esix5r4; NON_GNU_CPP=/usr/lib/cpp ;;
1002       *-esix* )                 opsys=esix ;;
1003       *-xenix* )                opsys=xenix ;;
1004       *-linux-gnu* )            opsys=gnu-linux ;;
1005       *-sco3.2v4* )             opsys=sco4 ; NON_GNU_CPP=/lib/cpp  ;;
1006       *-sco3.2v5* )             opsys=sco5
1007                                 NON_GNU_CPP=/lib/cpp
1008                                 # Prevent -belf from being passed to $CPP.
1009                                 # /lib/cpp does not accept it.
1010                                 OVERRIDE_CPPFLAGS=" "
1011                                 ;;
1012       *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
1013       *-386bsd* )               opsys=386bsd ;;
1014       *-freebsd* )              opsys=freebsd ;;
1015       *-nextstep* )             opsys=nextstep ;;
1016       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
1017     esac
1018   ;;
1019
1020   ## m68k Linux-based GNU system
1021   m68k-*-linux-gnu* )
1022     machine=m68k opsys=gnu-linux
1023   ;;
1024
1025   ## Mips Linux-based GNU system
1026   mips-*-linux-gnu* )
1027     machine=mips opsys=gnu-linux
1028   ;;
1029
1030   ## UXP/DS
1031   sparc-fujitsu-sysv4* )
1032     machine=sparc opsys=uxpds
1033     NON_GNU_CPP=/usr/ccs/lib/cpp
1034     RANLIB="ar -ts"
1035   ;;
1036
1037   ## UXP/V
1038   f301-fujitsu-uxpv4.1)
1039     machine=f301 opsys=uxpv
1040   ;;
1041
1042   * )
1043     unported=yes
1044   ;;
1045 esac
1046
1047 ### If the code above didn't choose an operating system, just choose
1048 ### an operating system based on the configuration name.  You really
1049 ### only want to use this when you have no idea what the right
1050 ### operating system is; if you know what operating systems a machine
1051 ### runs, it's cleaner to make it explicit in the case statement
1052 ### above.
1053 if test x"${opsys}" = x; then
1054   case "${canonical}" in
1055     *-gnu* )                            opsys=gnu ;;
1056     *-bsd4.[01] )                       opsys=bsd4-1 ;;
1057     *-bsd4.2 )                          opsys=bsd4-2 ;;
1058     *-bsd4.3 )                          opsys=bsd4-3 ;;
1059     *-sysv0 | *-sysvr0 )                opsys=usg5-0 ;;
1060     *-sysv2 | *-sysvr2 )                opsys=usg5-2 ;;
1061     *-sysv2.2 | *-sysvr2.2 )            opsys=usg5-2-2 ;;
1062     *-sysv3* | *-sysvr3* )              opsys=usg5-3 ;;
1063     *-sysv4.2uw* )                      opsys=unixware ;;
1064     *-sysv4.1* | *-sysvr4.1* )
1065         NON_GNU_CPP=/usr/lib/cpp
1066         opsys=usg5-4 ;;
1067     *-sysv4.[2-9]* | *-sysvr4.[2-9]* )
1068         if [ x$NON_GNU_CPP = x ]; then
1069           if [ -f /usr/ccs/lib/cpp ]; then
1070             NON_GNU_CPP=/usr/ccs/lib/cpp
1071           else
1072             NON_GNU_CPP=/lib/cpp
1073           fi
1074         fi
1075         opsys=usg5-4-2 ;;
1076     *-sysv4* | *-sysvr4* )              opsys=usg5-4 ;;
1077     * )
1078       unported=yes
1079     ;;
1080   esac
1081 fi
1082
1083 changequote([, ])dnl
1084
1085 if test $unported = yes; then
1086   AC_MSG_ERROR([Emacs hasn't been ported to \`${canonical}' systems.
1087 Check \`etc/MACHINES' for recognized configuration names.])
1088 fi
1089
1090 machfile="m/${machine}.h"
1091 opsysfile="s/${opsys}.h"
1092
1093
1094 #### Choose a compiler.
1095 test -n "$CC" && cc_specified=yes
1096
1097 # Save the value of CFLAGS that the user specified.
1098 SPECIFIED_CFLAGS="$CFLAGS"
1099
1100 case ${with_gcc} in
1101   "yes" ) CC="gcc" GCC=yes ;;
1102   "no"  ) : ${CC=cc} ;;
1103   * ) AC_PROG_CC
1104 esac
1105
1106 # On Suns, sometimes $CPP names a directory.
1107 if test -n "$CPP" && test -d "$CPP"; then
1108   CPP=
1109 fi
1110
1111 #### Some systems specify a CPP to use unless we are using GCC.
1112 #### Now that we know whether we are using GCC, we can decide whether
1113 #### to use that one.
1114 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
1115 then
1116   CPP="$NON_GNU_CPP"
1117 fi
1118
1119 #### Some systems specify a CC to use unless we are using GCC.
1120 #### Now that we know whether we are using GCC, we can decide whether
1121 #### to use that one.
1122 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
1123   test x$cc_specified != xyes
1124 then
1125   CC="$NON_GNU_CC"
1126 fi
1127
1128 if test x$GCC = xyes && test "x$GCC_TEST_OPTIONS" != x
1129 then
1130   CC="$CC $GCC_TEST_OPTIONS"
1131 fi
1132
1133 if test x$GCC = x && test "x$NON_GCC_TEST_OPTIONS" != x
1134 then
1135   CC="$CC $NON_GCC_TEST_OPTIONS"
1136 fi
1137
1138 if test x$GCC = xyes && test "x$GCC_LINK_TEST_OPTIONS" != x
1139 then
1140   ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1141 fi
1142
1143 if test x$GCC = x && test "x$NON_GCC_LINK_TEST_OPTIONS" != x
1144 then
1145   ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1146 fi
1147
1148 #### Some other nice autoconf tests.  If you add a test here which
1149 #### should make an entry in src/config.h, don't forget to add an
1150 #### #undef clause to src/config.h.in for autoconf to modify.
1151
1152 dnl checks for programs
1153 AC_PROG_LN_S
1154 AC_PROG_CPP
1155 AC_PROG_INSTALL
1156 AC_PROG_YACC
1157 if test "x$RANLIB" = x; then
1158   AC_PROG_RANLIB
1159 fi
1160
1161 dnl checks for Unix variants
1162 AC_AIX
1163
1164 #### Extract some information from the operating system and machine files.
1165
1166 AC_CHECKING([the machine- and system-dependent files to find out
1167  - which libraries the lib-src programs will want, and
1168  - whether the GNU malloc routines are usable])
1169
1170 ### First figure out CFLAGS (which we use for running the compiler here)
1171 ### and REAL_CFLAGS (which we use for real compilation).
1172 ### The two are the same except on a few systems, where they are made
1173 ### different to work around various lossages.  For example,
1174 ### GCC 2.5 on GNU/Linux needs them to be different because it treats -g
1175 ### as implying static linking.
1176
1177 ### If the CFLAGS env var is specified, we use that value
1178 ### instead of the default.
1179
1180 ### It's not important that this name contain the PID; you can't run
1181 ### two configures in the same directory and have anything work
1182 ### anyway.
1183 tempcname="conftest.c"
1184
1185 echo '
1186 #include "'${srcdir}'/src/'${opsysfile}'"
1187 #include "'${srcdir}'/src/'${machfile}'"
1188 #ifndef LIBS_MACHINE
1189 #define LIBS_MACHINE
1190 #endif
1191 #ifndef LIBS_SYSTEM
1192 #define LIBS_SYSTEM
1193 #endif
1194 #ifndef C_SWITCH_SYSTEM
1195 #define C_SWITCH_SYSTEM
1196 #endif
1197 #ifndef C_SWITCH_MACHINE
1198 #define C_SWITCH_MACHINE
1199 #endif
1200 configure___ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
1201 configure___ c_switch_system=C_SWITCH_SYSTEM
1202 configure___ c_switch_machine=C_SWITCH_MACHINE
1203
1204 #ifndef LIB_X11_LIB
1205 #define LIB_X11_LIB -lX11
1206 #endif
1207
1208 #ifndef LIBX11_MACHINE
1209 #define LIBX11_MACHINE
1210 #endif
1211
1212 #ifndef LIBX11_SYSTEM
1213 #define LIBX11_SYSTEM
1214 #endif
1215 configure___ LIBX=LIB_X11_LIB LIBX11_MACHINE LIBX11_SYSTEM
1216
1217 #ifdef UNEXEC
1218 configure___ unexec=UNEXEC
1219 #else
1220 configure___ unexec=unexec.o
1221 #endif
1222
1223 #ifdef SYSTEM_MALLOC
1224 configure___ system_malloc=yes
1225 #else
1226 configure___ system_malloc=no
1227 #endif
1228
1229 #ifndef C_DEBUG_SWITCH
1230 #define C_DEBUG_SWITCH -g
1231 #endif
1232
1233 #ifndef C_OPTIMIZE_SWITCH
1234 #ifdef __GNUC__
1235 #define C_OPTIMIZE_SWITCH -O2
1236 #else
1237 #define C_OPTIMIZE_SWITCH -O
1238 #endif
1239 #endif
1240
1241 #ifndef LD_SWITCH_MACHINE
1242 #define LD_SWITCH_MACHINE
1243 #endif
1244
1245 #ifndef LD_SWITCH_SYSTEM
1246 #define LD_SWITCH_SYSTEM
1247 #endif
1248
1249 #ifndef LD_SWITCH_X_SITE_AUX
1250 #define LD_SWITCH_X_SITE_AUX
1251 #endif
1252
1253 configure___ ld_switch_system=LD_SWITCH_SYSTEM
1254 configure___ ld_switch_machine=LD_SWITCH_MACHINE
1255
1256 #ifdef THIS_IS_CONFIGURE
1257
1258 /* Get the CFLAGS for tests in configure.  */
1259 #ifdef __GNUC__
1260 configure___ CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1261 #else
1262 configure___ CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1263 #endif
1264
1265 #else /* not THIS_IS_CONFIGURE */
1266
1267 /* Get the CFLAGS for real compilation.  */
1268 #ifdef __GNUC__
1269 configure___ REAL_CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1270 #else
1271 configure___ REAL_CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1272 #endif
1273
1274 #endif /* not THIS_IS_CONFIGURE */
1275 ' > ${tempcname}
1276
1277 # The value of CPP is a quoted variable reference, so we need to do this
1278 # to get its actual value...
1279 CPP=`eval "echo $CPP"`
1280 changequote(, )dnl
1281 eval `${CPP} -Isrc ${tempcname} \
1282        | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1283 if test "x$SPECIFIED_CFLAGS" = x; then
1284   eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \
1285          | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1286 else
1287   REAL_CFLAGS="$CFLAGS"
1288 fi
1289 changequote([, ])dnl
1290 rm ${tempcname}
1291
1292 ac_link="$ac_link $ld_switch_machine $ld_switch_system"
1293
1294 ### Make sure subsequent tests use flags consistent with the build flags.
1295
1296 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1297   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1298 else
1299   CPPFLAGS="$c_switch_system $c_switch_machine $CPPFLAGS"
1300 fi
1301
1302 dnl Do this early because it can frob feature test macros for Unix-98 &c.
1303 AC_SYS_LARGEFILE
1304
1305 # Sound support for GNU/Linux and the free BSDs.
1306 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h)
1307 # Emulation library used on NetBSD.
1308 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1309 AC_SUBST(LIBSOUND)
1310
1311 dnl checks for header files
1312 AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \
1313   linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \
1314   termcap.h stdio_ext.h fcntl.h term.h)
1315 AC_HEADER_STDC
1316 AC_HEADER_TIME
1317 AC_DECL_SYS_SIGLIST
1318 AC_HEADER_SYS_WAIT
1319
1320 dnl Some systems have utime.h but don't declare the struct anyplace.
1321 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1322 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1323 #include <sys/time.h>
1324 #include <time.h>
1325 #else
1326 #ifdef HAVE_SYS_TIME_H
1327 #include <sys/time.h>
1328 #else
1329 #include <time.h>
1330 #endif
1331 #endif
1332 #ifdef HAVE_UTIME_H
1333 #include <utime.h>
1334 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1335   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1336 if test $emacs_cv_struct_utimbuf = yes; then
1337   AC_DEFINE(HAVE_STRUCT_UTIMBUF)
1338 fi
1339
1340 dnl checks for typedefs
1341 AC_TYPE_SIGNAL
1342
1343 dnl Check for speed_t typedef.
1344 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1345 AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1346   emacs_cv_speed_t=yes))
1347 if test $emacs_cv_speed_t = yes; then
1348   AC_DEFINE(HAVE_SPEED_T)
1349 fi
1350
1351 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1352 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1353 #include <sys/time.h>
1354 #include <time.h>
1355 #else
1356 #ifdef HAVE_SYS_TIME_H
1357 #include <sys/time.h>
1358 #else
1359 #include <time.h>
1360 #endif
1361 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1362   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1363 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1364 if test $emacs_cv_struct_timeval = yes; then
1365   AC_DEFINE(HAVE_TIMEVAL)
1366 fi
1367
1368 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1369 AC_TRY_COMPILE([#include <math.h>],
1370 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1371   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1372 HAVE_EXCEPTION=$emacs_cv_struct_exception
1373 if test $emacs_cv_struct_exception != yes; then
1374   AC_DEFINE(NO_MATHERR)
1375 fi
1376
1377 dnl checks for structure members
1378 AC_STRUCT_TM
1379 AC_STRUCT_TIMEZONE
1380 AC_CACHE_CHECK(for tm_gmtoff in struct tm, emacs_cv_tm_gmtoff,
1381 AC_TRY_LINK([#include <time.h>], [struct tm t; t.tm_gmtoff = 0],
1382   emacs_cv_tm_gmtoff=yes,
1383   emacs_cv_tm_gmtoff=no))
1384 if test $emacs_cv_tm_gmtoff = yes; then
1385   AC_DEFINE(HAVE_TM_GMTOFF)
1386 fi
1387
1388 dnl checks for compiler characteristics
1389
1390 dnl Testing __STDC__ to determine prototype support isn't good enough.
1391 dnl DEC C, for instance, doesn't define it with default options, and
1392 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1393 dnl and void *.
1394 AC_C_PROTOTYPES
1395 AC_C_VOLATILE
1396 AC_C_CONST
1397 dnl This isn't useful because we can't turn on use of `inline' unless
1398 dnl the compiler groks `extern inline'.
1399 dnl AC_C_INLINE
1400 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1401   [AC_TRY_COMPILE(, [void * foo;],
1402                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1403 if test $emacs_cv_void_star = yes; then
1404   AC_DEFINE(POINTER_TYPE, void)
1405 else
1406   AC_DEFINE(POINTER_TYPE, char)
1407 fi
1408
1409 dnl check for Make feature
1410 AC_PROG_MAKE_SET
1411
1412 dnl checks for operating system services
1413 AC_SYS_LONG_FILE_NAMES
1414
1415 #### Choose a window system.
1416
1417 AC_PATH_X
1418 if test "$no_x" = yes; then
1419   window_system=none
1420 else
1421   window_system=x11
1422 fi
1423
1424 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1425   LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1426   LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1427   x_default_search_path=""
1428   for x_library in `echo ${x_libraries} | sed -e "s/:/ /g"`; do
1429     x_search_path="${x_library}/X11/%L/%T/%N%C%S:\
1430 ${x_library}/X11/%L/%T/%N%C%S:${x_libary}/X11/%l/%T/%N%C%S:\
1431 ${x_library}/X11/%T/%N%C%S:${x_library}/X11/%L/%T/%N%S:\
1432 ${x_library}/X11/%l/%T/%N%S:${x_library}/X11/%T/%N%S"
1433     if test x"${x_default_search_path}" = x; then
1434       x_default_search_path=${x_search_path}
1435     else
1436       x_default_search_path="${x_search_path}:${x_default_search_path}"
1437     fi
1438   done
1439 fi
1440 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1441   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1442 fi
1443
1444 if test x"${x_includes}" = x; then
1445   bitmapdir=/usr/include/X11/bitmaps
1446 else
1447   # accumulate include directories that have X11 bitmap subdirectories
1448   bmd_acc="dummyval"
1449   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1450     if test -d "${bmd}/X11/bitmaps"; then
1451       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1452     fi
1453     if test -d "${bmd}/bitmaps"; then
1454       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1455     fi
1456   done
1457   if test ${bmd_acc} != "dummyval"; then
1458     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1459   fi
1460 fi
1461
1462 case "${window_system}" in
1463   x11 )
1464     HAVE_X_WINDOWS=yes
1465     HAVE_X11=yes
1466     case "${with_x_toolkit}" in
1467       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1468       motif ) USE_X_TOOLKIT=MOTIF ;;
1469 dnl      open-look ) USE_X_TOOLKIT=OPEN_LOOK ;;
1470       no ) USE_X_TOOLKIT=none ;;
1471 dnl If user did not say whether to use a toolkit,
1472 dnl make this decision later: use the toolkit if we have X11R5 or newer.
1473       * ) USE_X_TOOLKIT=maybe ;;
1474     esac
1475   ;;
1476   none )
1477     HAVE_X_WINDOWS=no
1478     HAVE_X11=no
1479     USE_X_TOOLKIT=none
1480   ;;
1481 esac
1482
1483 ### If we're using X11, we should use the X menu package.
1484 HAVE_MENUS=no
1485 case ${HAVE_X11} in
1486   yes ) HAVE_MENUS=yes ;;
1487 esac
1488
1489 if test "${opsys}" = "hpux9"; then
1490   case "${x_libraries}" in
1491     *X11R4* )
1492       opsysfile="s/hpux9-x11r4.h"
1493       ;;
1494   esac
1495 fi
1496
1497 if test "${opsys}" = "hpux9shr"; then
1498   case "${x_libraries}" in
1499     *X11R4* )
1500       opsysfile="s/hpux9shxr4.h"
1501       ;;
1502   esac
1503 fi
1504
1505 ### Compute the unexec source name from the object name.
1506 UNEXEC_SRC="`echo ${unexec} | sed 's/\.o/.c/'`"
1507
1508 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1509 # Assume not, until told otherwise.
1510 GNU_MALLOC=yes
1511 doug_lea_malloc=yes
1512 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1513 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1514 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1515                emacs_cv_var___after_morecore_hook,
1516 AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1517   emacs_cv_var___after_morecore_hook=yes,
1518   emacs_cv_var___after_morecore_hook=no))
1519 if test $emacs_cv_var___after_morecore_hook = no; then
1520   doug_lea_malloc=no
1521 fi
1522 if test "${system_malloc}" = "yes"; then
1523   GNU_MALLOC=no
1524   GNU_MALLOC_reason="
1525     (The GNU allocators don't work with this system configuration.)"
1526 fi
1527 if test "$doug_lea_malloc" = "yes" ; then
1528   if test "$GNU_MALLOC" = yes ; then
1529     GNU_MALLOC_reason="
1530       (Using Doug Lea's new malloc from the GNU C Library.)"
1531   fi
1532   AC_DEFINE(DOUG_LEA_MALLOC)
1533 fi
1534
1535 if test x"${REL_ALLOC}" = x; then
1536   REL_ALLOC=${GNU_MALLOC}
1537 fi
1538
1539 LIBS="$libsrc_libs $LIBS"
1540
1541 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1542 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1543 AC_CHECK_LIB(dnet, dnet_ntoa)
1544 dnl This causes -lresolv to get used in subsequent tests,
1545 dnl which causes failures on some systems such as HPUX 9.
1546 dnl AC_CHECK_LIB(resolv, gethostbyname)
1547
1548 dnl FIXME replace main with a function we actually want from this library.
1549 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1550
1551 AC_CHECK_LIB(pthreads, cma_open)
1552
1553 AC_MSG_CHECKING(for XFree86 in /usr/X386)
1554 if test -d /usr/X386/include; then
1555   HAVE_XFREE386=yes
1556   : ${C_SWITCH_X_SITE="-I/usr/X386/include"}
1557 else
1558   HAVE_XFREE386=no
1559 fi
1560 AC_MSG_RESULT($HAVE_XFREE386)
1561
1562 # Change CFLAGS temporarily so that C_SWITCH_X_SITE gets used
1563 # for the tests that follow.  We set it back to REAL_CFLAGS later on.
1564
1565 REAL_CPPFLAGS="$CPPFLAGS"
1566
1567 if test "${HAVE_X11}" = "yes"; then
1568   DEFS="$C_SWITCH_X_SITE $DEFS"
1569   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1570   LIBS="$LIBX $LIBS"
1571   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1572   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1573
1574   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1575   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1576   # but it's more convenient here to set LD_RUN_PATH
1577   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1578   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1579     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1580     export LD_RUN_PATH
1581   fi
1582
1583   if test "${opsys}" = "gnu-linux"; then
1584     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1585     AC_TRY_LINK([],
1586      [XOpenDisplay ("foo");],
1587      [xlinux_first_failure=no],
1588      [xlinux_first_failure=yes])
1589     if test "${xlinux_first_failure}" = "yes"; then
1590       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1591       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1592       OLD_CPPFLAGS="$CPPFLAGS"
1593       OLD_LIBS="$LIBS"
1594       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1595       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1596       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1597       LIBS="$LIBS -b i486-linuxaout"
1598       AC_TRY_LINK([],
1599        [XOpenDisplay ("foo");],
1600        [xlinux_second_failure=no],
1601        [xlinux_second_failure=yes])
1602       if test "${xlinux_second_failure}" = "yes"; then
1603         # If we get the same failure with -b, there is no use adding -b.
1604         # So take it out.  This plays safe.
1605         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1606         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1607         CPPFLAGS="$OLD_CPPFLAGS"
1608         LIBS="$OLD_LIBS"
1609         AC_MSG_RESULT(no)
1610       else
1611         AC_MSG_RESULT(yes)
1612       fi
1613     else
1614       AC_MSG_RESULT(no)
1615     fi
1616   fi
1617
1618   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1619 XScreenNumberOfScreen XSetWMProtocols)
1620 fi
1621
1622 if test "${window_system}" = "x11"; then
1623   AC_MSG_CHECKING(X11 version 6)
1624   AC_CACHE_VAL(emacs_cv_x11_version_6,
1625   AC_TRY_LINK([#include <X11/Xlib.h>],
1626 [#if XlibSpecificationRelease < 6
1627 fail;
1628 #endif
1629 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no))
1630   if test $emacs_cv_x11_version_6 = yes; then
1631     AC_MSG_RESULT(6 or newer)
1632     AC_DEFINE(HAVE_X11R6)
1633   else
1634     AC_MSG_RESULT(before 6)
1635   fi
1636 fi
1637
1638 if test "${window_system}" = "x11"; then
1639   AC_MSG_CHECKING(X11 version 5)
1640   AC_CACHE_VAL(emacs_cv_x11_version_5,
1641   AC_TRY_LINK([#include <X11/Xlib.h>],
1642 [#if XlibSpecificationRelease < 5
1643 fail;
1644 #endif
1645 ], emacs_cv_x11_version_5=yes, emacs_cv_x11_version_5=no))
1646   if test $emacs_cv_x11_version_5 = yes; then
1647     AC_MSG_RESULT(5 or newer)
1648     HAVE_X11R5=yes
1649     AC_DEFINE(HAVE_X11R5)
1650   else
1651     HAVE_X11R5=no
1652     AC_MSG_RESULT(before 5)
1653   fi
1654 fi
1655
1656 dnl Do not put whitespace before the #include statements below.
1657 dnl Older compilers (eg sunos4 cc) choke on it.
1658 if test x"${USE_X_TOOLKIT}" = xmaybe; then
1659   if test x"${HAVE_X11R5}" = xyes; then
1660     AC_MSG_CHECKING(X11 version 5 with Xaw)
1661     AC_CACHE_VAL(emacs_cv_x11_version_5_with_xaw,
1662     AC_TRY_LINK([
1663 #include <X11/Intrinsic.h>
1664 #include <X11/Xaw/Simple.h>],
1665       [],
1666       emacs_cv_x11_version_5_with_xaw=yes,
1667       emacs_cv_x11_version_5_with_xaw=no))
1668     if test $emacs_cv_x11_version_5_with_xaw = yes; then
1669       AC_MSG_RESULT([5 or newer, with Xaw; use toolkit by default])
1670       USE_X_TOOLKIT=LUCID
1671     else
1672       AC_MSG_RESULT(before 5 or no Xaw; do not use toolkit by default)
1673       USE_X_TOOLKIT=none
1674     fi
1675   else
1676     USE_X_TOOLKIT=none
1677   fi
1678 fi
1679
1680 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
1681
1682 if test "${USE_X_TOOLKIT}" != "none"; then
1683   AC_MSG_CHECKING(X11 toolkit version)
1684   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
1685   AC_TRY_LINK([#include <X11/Intrinsic.h>],
1686 [#if XtSpecificationRelease < 6
1687 fail;
1688 #endif
1689 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no))
1690   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
1691   if test $emacs_cv_x11_toolkit_version_6 = yes; then
1692     AC_MSG_RESULT(6 or newer)
1693     AC_DEFINE(HAVE_X11XTR6)
1694   else
1695     AC_MSG_RESULT(before 6)
1696   fi
1697
1698 dnl If using toolkit, check whether libXmu.a exists.
1699 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
1700   OLDLIBS="$LIBS"
1701   if test x$HAVE_X11XTR6 = xyes; then
1702     LIBS="-lXt -lSM -lICE $LIBS"
1703   else
1704     LIBS="-lXt $LIBS"
1705   fi
1706   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
1707   LIBS="$OLDLIBS"
1708 fi
1709
1710 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1711   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
1712   AC_TRY_COMPILE([#include <Xm/Xm.h>],
1713     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
1714 int x = 5;
1715 #else
1716 Motif version prior to 2.1.
1717 #endif],
1718     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no))
1719   HAVE_MOTIF_2_1=$emacs_cv_motif_version_2_1
1720   if test $emacs_cv_motif_version_2_1 = yes; then
1721     AC_DEFINE(HAVE_MOTIF_2_1)
1722     AC_CHECK_LIB(Xp, XpCreateContext, HAVE_LIBXP=yes, , -lXext)
1723     if test ${HAVE_LIBXP} = yes; then
1724       AC_DEFINE(HAVE_LIBXP)
1725     fi
1726   fi
1727 fi
1728
1729 ### Is -lXaw3d available?
1730 HAVE_XAW3D=no
1731 if test "${HAVE_X11}" = "yes"; then
1732   if test "${USE_X_TOOLKIT}" != "none"; then
1733     old_c_flags="${CFLAGS}"
1734     CFLAGS="${LD_SWITCH_X_SITE}"
1735     AC_CHECK_HEADER(X11/Xaw3d/Scrollbar.h,
1736         AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb, HAVE_XAW3D=yes, , -lX11))
1737     CFLAGS="${old_c_flags}"
1738
1739     if test "${HAVE_XAW3D}" = "yes"; then
1740         AC_DEFINE(HAVE_XAW3D)
1741     fi
1742   fi
1743 fi
1744
1745 dnl Use toolkit scroll bars if configured for X toolkit and either
1746 dnl using Motif or Xaw3d is available, and unless
1747 dnl --with-toolkit-scroll-bars=no was specified.
1748
1749 USE_TOOLKIT_SCROLL_BARS=no
1750 if test "${with_toolkit_scroll_bars}" != "no"; then
1751   if test "${USE_X_TOOLKIT}" != "none"; then
1752     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1753       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1754       HAVE_XAW3D=no
1755       USE_TOOLKIT_SCROLL_BARS=yes
1756     elif test "${HAVE_XAW3D}" = "yes"; then
1757       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1758       USE_TOOLKIT_SCROLL_BARS=yes
1759     fi
1760   fi
1761 fi
1762
1763 dnl Don't use X11 input methods if user specifies he doesn't want it
1764 dnl with `--with-xim=no'.
1765
1766 if test "${with_xim}" != "no"; then
1767   AC_DEFINE(USE_XIM)
1768 fi
1769
1770 ### Use -lXpm if available, unless `--with-xpm=no'.
1771 HAVE_XPM=no
1772 if test "${HAVE_X11}" = "yes"; then
1773   if test "${with_xpm}" != "no"; then
1774     old_c_flags="${CFLAGS}"
1775     CFLAGS="${LD_SWITCH_X_SITE}"
1776     AC_CHECK_HEADER(X11/xpm.h,
1777       AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11))
1778     if test "${HAVE_XPM}" = "yes"; then
1779        AC_EGREP_CPP(no_return_alloc_pixels,
1780        [#include "X11/xpm.h"
1781 #ifndef XpmReturnAllocPixels
1782 no_return_alloc_pixels
1783 #endif
1784         ], HAVE_XPM=no, HAVE_XPM=yes)
1785     fi
1786     CFLAGS="${old_c_flags}"
1787   fi
1788
1789   if test "${HAVE_XPM}" = "yes"; then
1790     AC_DEFINE(HAVE_XPM)
1791   fi
1792 fi
1793
1794 ### Use -ljpeg if available, unless `--with-jpeg=no'.
1795 HAVE_JPEG=no
1796 if test "${HAVE_X11}" = "yes"; then
1797   if test "${with_jpeg}" != "no"; then
1798     old_c_flags="${CFLAGS}"
1799     CFLAGS="${LD_SWITCH_X_SITE} ${CFLAGS}"
1800     dnl Checking for jpeglib.h can lose becsue of a redefinition of
1801     dnl  HAVE_STDLIB_H.
1802     AC_CHECK_HEADER(jerror.h,
1803       AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes, , -lX11))
1804     CFLAGS="${old_c_flags}"
1805   fi
1806
1807   if test "${HAVE_JPEG}" = "yes"; then
1808     AC_DEFINE(HAVE_JPEG)
1809   fi
1810 fi
1811
1812 ### Use -lpng if available, unless `--with-png=no'.
1813 HAVE_PNG=no
1814 if test "${HAVE_X11}" = "yes"; then
1815   if test "${with_png}" != "no"; then
1816     old_c_flags="${CFLAGS}"
1817     CFLAGS="${LD_SWITCH_X_SITE} ${CFLAGS}"
1818     AC_CHECK_HEADER(png.h,
1819       AC_CHECK_LIB(png, png_set_expand, HAVE_PNG=yes, , -lX11 -lz -lm))
1820     CFLAGS="${old_c_flags}"
1821   fi
1822
1823   if test "${HAVE_PNG}" = "yes"; then
1824     AC_DEFINE(HAVE_PNG)
1825   fi
1826 fi
1827
1828 ### Use -ltiff if available, unless `--with-tiff=no'.
1829 HAVE_TIFF=no
1830 if test "${HAVE_X11}" = "yes"; then
1831   if test "${with_tiff}" != "no"; then
1832     old_c_flags="${CFLAGS}"
1833     CFLAGS="${LD_SWITCH_X_SITE} ${CFLAGS}"
1834     AC_CHECK_HEADER(tiffio.h,
1835       tifflibs="-lX11 -lz -lm"
1836       # At least one tiff package requires the jpeg library.
1837       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
1838       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs))
1839     CFLAGS="${old_c_flags}"
1840   fi
1841
1842   if test "${HAVE_TIFF}" = "yes"; then
1843     AC_DEFINE(HAVE_TIFF)
1844   fi
1845 fi
1846
1847 ### Use -lgif if available, unless `--with-gif=no'.
1848 HAVE_GIF=no
1849 if test "${HAVE_X11}" = "yes"; then
1850   if test "${with_gif}" != "no"; then
1851     old_c_flags="${CFLAGS}"
1852     CFLAGS="${LD_SWITCH_X_SITE} ${CFLAGS}"
1853     AC_CHECK_HEADER(gif_lib.h,
1854       AC_CHECK_LIB(ungif, DGifOpen, HAVE_GIF=yes, , -lX11))
1855     CFLAGS="${old_c_flags}"
1856   fi
1857
1858   if test "${HAVE_GIF}" = "yes"; then
1859     AC_DEFINE(HAVE_GIF)
1860   fi
1861 fi
1862
1863 # If netdb.h doesn't declare h_errno, we must declare it by hand.
1864 AC_CACHE_CHECK(whether netdb declares h_errno,
1865                emacs_cv_netdb_declares_h_errno,
1866 AC_TRY_LINK([#include <netdb.h>],
1867   [return h_errno;],
1868   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no))
1869 if test $emacs_cv_netdb_declares_h_errno = yes; then
1870   AC_DEFINE(HAVE_H_ERRNO)
1871 fi
1872
1873 AC_FUNC_ALLOCA
1874
1875 # fmod, logb, and frexp are found in -lm on most systems.
1876 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
1877 AC_CHECK_LIB(m, sqrt)
1878
1879 # Check for mail-locking functions in a "mail" library
1880 AC_CHECK_LIB(mail, maillock)
1881 dnl Debian, at least:
1882 dnl AC_CHECK_LIB(lockfile, maillock, [AC_DEFINE(HAVE_LIBMAIL)])
1883 AC_CHECK_LIB(lockfile, maillock)
1884 # If we have the shared liblockfile, assume we must use it for mail
1885 # locking (e.g. Debian).  If we couldn't link against liblockfile
1886 # (no liblockfile.a installed), ensure that we don't need to.
1887 if test "$ac_cv_lib_lockfile_maillock" = no; then
1888   dnl This works for files generally, not just executables.
1889   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
1890   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
1891                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
1892   if test $ac_cv_prog_liblockfile = yes; then
1893     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
1894 This probably means that movemail could lose mail.
1895 There may be a \`development' package to install containing liblockfile.])
1896   else AC_DEFINE(LIBMAIL, -llockfile)
1897   fi
1898   else :
1899 fi
1900 AC_CHECK_FUNCS(touchlock)
1901 AC_CHECK_HEADERS(maillock.h)
1902
1903 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
1904 rename closedir mkdir rmdir sysinfo \
1905 random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime res_init setsid \
1906 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
1907 utimes setrlimit setpgid getcwd getwd shutdown strftime getaddrinfo \
1908 __fpending mblen mbrlen strsignal setitimer ualarm)
1909
1910 AC_FUNC_MKTIME
1911 if test "$ac_cv_func_working_mktime" = no; then
1912   AC_DEFINE(BROKEN_MKTIME)
1913 fi
1914
1915 AC_FUNC_GETLOADAVG
1916
1917 AC_CHECK_FUNCS(ftello)
1918
1919 # UNIX98 PTYs.  AC_SYS_LARGEFILE should have defined _XOPEN_SOURCE
1920 # if we need it.
1921 AC_CHECK_FUNCS(grantpt)
1922
1923 # PTY-related GNU extensions.
1924 AC_CHECK_FUNCS(getpt)
1925
1926 # Check this now, so that we will NOT find the above functions in ncurses.
1927 # That is because we have not set up to link ncurses in lib-src.
1928 # It's better to believe a function is not available
1929 # than to expect to find it in ncurses.
1930 AC_CHECK_LIB(ncurses, tparm)
1931
1932 # These tell us which Kerberos-related libraries to use.
1933 if test "${with_kerberos+set}" = set; then
1934   AC_CHECK_LIB(com_err, com_err)
1935   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt)
1936   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt)
1937   AC_CHECK_LIB(krb5, krb5_init_context)
1938   if test "${with_kerberos5+set}" != set; then
1939     AC_CHECK_LIB(des425, des_cbc_encrypt,,
1940                  AC_CHECK_LIB(des, des_cbc_encrypt))
1941     AC_CHECK_LIB(krb4, krb_get_cred,,
1942                  AC_CHECK_LIB(krb, krb_get_cred))
1943   fi
1944
1945   if test "${with_kerberos5+set}" = set; then
1946     AC_CHECK_HEADERS(krb5.h)
1947   else
1948     AC_CHECK_HEADERS(des.h,,
1949                      AC_CHECK_HEADERS(kerberosIV/des.h,,
1950                                       AC_CHECK_HEADERS(kerberos/des.h)))
1951     AC_CHECK_HEADERS(krb.h,,
1952                      AC_CHECK_HEADERS(kerberosIV/krb.h,,
1953                                       AC_CHECK_HEADERS(kerberos/krb.h)))
1954   fi
1955   AC_CHECK_HEADERS(com_err.h)
1956 fi
1957
1958 # Solaris requires -lintl if you want strerror (which calls dgettext)
1959 # to return localized messages.
1960 AC_CHECK_LIB(intl, dgettext)
1961
1962 AC_MSG_CHECKING(whether localtime caches TZ)
1963 AC_CACHE_VAL(emacs_cv_localtime_cache,
1964 [if test x$ac_cv_func_tzset = xyes; then
1965 AC_TRY_RUN([#include <time.h>
1966 extern char **environ;
1967 unset_TZ ()
1968 {
1969   char **from, **to;
1970   for (to = from = environ; (*to = *from); from++)
1971     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
1972       to++;
1973 }
1974 char TZ_GMT0[] = "TZ=GMT0";
1975 char TZ_PST8[] = "TZ=PST8";
1976 main()
1977 {
1978   time_t now = time ((time_t *) 0);
1979   int hour_GMT0, hour_unset;
1980   if (putenv (TZ_GMT0) != 0)
1981     exit (1);
1982   hour_GMT0 = localtime (&now)->tm_hour;
1983   unset_TZ ();
1984   hour_unset = localtime (&now)->tm_hour;
1985   if (putenv (TZ_PST8) != 0)
1986     exit (1);
1987   if (localtime (&now)->tm_hour == hour_GMT0)
1988     exit (1);
1989   unset_TZ ();
1990   if (localtime (&now)->tm_hour != hour_unset)
1991     exit (1);
1992   exit (0);
1993 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
1994 [# If we have tzset, assume the worst when cross-compiling.
1995 emacs_cv_localtime_cache=yes])
1996 else
1997         # If we lack tzset, report that localtime does not cache TZ,
1998         # since we can't invalidate the cache if we don't have tzset.
1999         emacs_cv_localtime_cache=no
2000 fi])dnl
2001 AC_MSG_RESULT($emacs_cv_localtime_cache)
2002 if test $emacs_cv_localtime_cache = yes; then
2003   AC_DEFINE(LOCALTIME_CACHE)
2004 fi
2005
2006 if test "x$HAVE_TIMEVAL" = xyes; then
2007   AC_CHECK_FUNCS(gettimeofday)
2008   AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
2009                  emacs_cv_gettimeofday_two_arguments,
2010   AC_TRY_COMPILE([
2011 #ifdef TIME_WITH_SYS_TIME
2012 #include <sys/time.h>
2013 #include <time.h>
2014 #else
2015 #ifdef HAVE_SYS_TIME_H
2016 #include <sys/time.h>
2017 #else
2018 #include <time.h>
2019 #endif
2020 #endif],
2021     [struct timeval time;
2022      gettimeofday (&time, 0);],
2023     emacs_cv_gettimeofday_two_arguments=yes,
2024     emacs_cv_gettimeofday_two_arguments=no))
2025   if test $emacs_cv_gettimeofday_two_arguments = no; then
2026     AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT)
2027   fi
2028 fi
2029
2030 dnl Note that AC_STRUCT_TIMEZONE doesn't do what you might expect.
2031 if test "$ac_cv_func_gettimeofday" = yes; then
2032   AC_CACHE_CHECK([for struct timezone], emacs_cv_struct_timezone,
2033     [AC_TRY_COMPILE([#include <sys/time.h>],
2034     [struct timezone tz;],
2035     dnl It may be that we can't call gettimeofday with a non-null pointer,
2036     dnl even though we have struct timezone (e.g. HPUX).  In that case
2037     dnl we'll lie about struct timezone.
2038     [AC_TRY_RUN([
2039 #ifdef TIME_WITH_SYS_TIME
2040 #include <sys/time.h>
2041 #include <time.h>
2042 #else
2043 #ifdef HAVE_SYS_TIME_H
2044 #include <sys/time.h>
2045 #else
2046 #include <time.h>
2047 #endif
2048 #endif
2049 main () {
2050   struct timeval time;
2051   struct timezone dummy;
2052   exit (gettimeofday (&time, &dummy));
2053 }],
2054       emacs_cv_struct_timezone=yes,
2055       emacs_cv_struct_timezone=no, emacs_cv_struct_timezone=yes)],
2056     emacs_cv_struct_timezone=no)])
2057 fi
2058
2059 ok_so_far=yes
2060 AC_CHECK_FUNC(socket, , ok_so_far=no)
2061 if test $ok_so_far = yes; then
2062   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
2063 fi
2064 if test $ok_so_far = yes; then
2065   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
2066 fi
2067 if test $ok_so_far = yes; then
2068   AC_DEFINE(HAVE_INET_SOCKETS)
2069 fi
2070
2071 if test -f /usr/lpp/X11/bin/smt.exp; then
2072   AC_DEFINE(HAVE_AIX_SMT_EXP)
2073 fi
2074
2075 AC_MSG_CHECKING(whether system supports dynamic ptys)
2076 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
2077   AC_MSG_RESULT(yes)
2078   AC_DEFINE(HAVE_DEV_PTMX)
2079 else
2080   AC_MSG_RESULT(no)
2081 fi
2082
2083 AC_FUNC_VFORK
2084
2085 # Fixme: This should be replaced when we have autoconf 2.14.
2086 AC_SIZE_T
2087
2088 # Set up the CFLAGS for real compilation, so we can substitute it.
2089 CFLAGS="$REAL_CFLAGS"
2090 CPPFLAGS="$REAL_CPPFLAGS"
2091
2092 changequote(, )dnl
2093 #### Find out which version of Emacs this is.
2094 version=`grep 'defconst[         ]*emacs-version' ${srcdir}/lisp/version.el \
2095          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
2096 changequote([, ])dnl
2097 if test x"${version}" = x; then
2098   AC_MSG_ERROR(can't find current emacs version in \`${srcdir}/lisp/version.el'.)
2099 fi
2100
2101 ### Specify what sort of things we'll be editing into Makefile and config.h.
2102 ### Use configuration here uncanonicalized to avoid exceeding size limits.
2103 AC_SUBST(version)
2104 AC_SUBST(configuration)
2105 AC_SUBST(canonical)
2106 AC_SUBST(srcdir)
2107 AC_SUBST(prefix)
2108 AC_SUBST(exec_prefix)
2109 AC_SUBST(bindir)
2110 AC_SUBST(datadir)
2111 AC_SUBST(sharedstatedir)
2112 AC_SUBST(libexecdir)
2113 AC_SUBST(mandir)
2114 AC_SUBST(infodir)
2115 AC_SUBST(lispdir)
2116 AC_SUBST(locallisppath)
2117 AC_SUBST(lisppath)
2118 AC_SUBST(x_default_search_path)
2119 AC_SUBST(etcdir)
2120 AC_SUBST(archlibdir)
2121 AC_SUBST(docdir)
2122 AC_SUBST(bitmapdir)
2123 AC_SUBST(c_switch_system)
2124 AC_SUBST(c_switch_machine)
2125 AC_SUBST(LD_SWITCH_X_SITE)
2126 AC_SUBST(LD_SWITCH_X_SITE_AUX)
2127 AC_SUBST(C_SWITCH_X_SITE)
2128 AC_SUBST(CFLAGS)
2129 AC_SUBST(X_TOOLKIT_TYPE)
2130 AC_SUBST(machfile)
2131 AC_SUBST(opsysfile)
2132 AC_SUBST(GETLOADAVG_LIBS)
2133
2134 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}")
2135 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}")
2136 AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}")
2137 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}")
2138 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE, ${LD_SWITCH_X_SITE})
2139 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE_AUX, ${LD_SWITCH_X_SITE_AUX})
2140 AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C_SWITCH_X_SITE})
2141 AC_DEFINE_UNQUOTED(UNEXEC_SRC,       ${UNEXEC_SRC})
2142
2143 if test "${HAVE_X_WINDOWS}" = "yes" ; then
2144   AC_DEFINE(HAVE_X_WINDOWS)
2145 fi
2146 if test "${USE_X_TOOLKIT}" != "none" ; then
2147   AC_DEFINE(USE_X_TOOLKIT)
2148 fi
2149 if test "${HAVE_X11}" = "yes" ; then
2150   AC_DEFINE(HAVE_X11)
2151 fi
2152 if test "${HAVE_XFREE386}" = "yes" ; then
2153   AC_DEFINE(HAVE_XFREE386)
2154 fi
2155 if test "${HAVE_MENUS}" = "yes" ; then
2156   AC_DEFINE(HAVE_MENUS)
2157 fi
2158 if test "${GNU_MALLOC}" = "yes" ; then
2159   AC_DEFINE(GNU_MALLOC)
2160 fi
2161 if test "${REL_ALLOC}" = "yes" ; then
2162   AC_DEFINE(REL_ALLOC)
2163 fi
2164
2165 #### Report on what we decided to do.
2166 echo "
2167 Configured for \`${canonical}'.
2168
2169   Where should the build process find the source code?    ${srcdir}
2170   What operating system and machine description files should Emacs use?
2171         \`${opsysfile}' and \`${machfile}'
2172   What compiler should emacs be built with?               ${CC} ${CFLAGS}
2173   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
2174   Should Emacs use the relocating allocator for buffers?  ${REL_ALLOC}
2175   What window system should Emacs use?                    ${window_system}
2176   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
2177
2178 if test -n "${x_includes}"; then
2179 echo "  Where do we find X Windows header files?                ${x_includes}"
2180 else
2181 echo "  Where do we find X Windows header files?                Standard dirs"
2182 fi
2183 if test -n "${x_libraries}"; then
2184 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
2185 else
2186 echo "  Where do we find X Windows libraries?                   Standard dirs"
2187 fi
2188
2189 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
2190 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
2191 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
2192 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
2193 echo "  Does Emacs use -lungif?                                 ${HAVE_GIF}"
2194 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
2195 echo "  Does Emacs use X toolkit scroll bars?                   ${USE_TOOLKIT_SCROLL_BARS}"
2196 echo
2197
2198 # Remove any trailing slashes in these variables.
2199 changequote(, )dnl
2200 test "${prefix}" != NONE &&
2201   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
2202 test "${exec_prefix}" != NONE &&
2203   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`
2204 changequote([, ])dnl
2205
2206 AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \
2207         man/Makefile lwlib/Makefile src/Makefile.c:src/Makefile.in \
2208         lisp/Makefile leim/Makefile, [
2209
2210 ### Make the necessary directories, if they don't exist.
2211 for dir in etc lisp ; do
2212   test -d ${dir} || mkdir ${dir}
2213 done
2214
2215 # Build src/Makefile from ${srcdir}/src/Makefile.c
2216 # and lib-src/Makefile from ${srcdir}/lib-src/Makefile.c
2217 # This must be done after src/config.h is built, since we rely on that file.
2218
2219 changequote(, )dnl The horror, the horror.
2220 # Now get this: Some word that is part of the ${srcdir} directory name
2221 # or the ${configuration} value might, just might, happen to be an
2222 # identifier like `sun4' or `i386' or something, and be predefined by
2223 # the C preprocessor to some helpful value like 1, or maybe the empty
2224 # string.  Needless to say consequent macro substitutions are less
2225 # than conducive to the makefile finding the correct directory.
2226 undefs="`echo $top_srcdir $configuration $canonical |
2227 sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
2228     -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g' \
2229 `"
2230 changequote([, ])dnl
2231
2232 echo creating src/epaths.h
2233 make epaths-force
2234
2235 echo creating lib-src/Makefile
2236 ( cd lib-src
2237   rm -f junk.c junk1.c junk2.c
2238   sed -e '/start of cpp stuff/q' \
2239       < Makefile.c > junk1.c
2240   sed -e '1,/start of cpp stuff/d'\
2241       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
2242       < Makefile.c > junk.c
2243   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
2244       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
2245   cat junk1.c junk2.c > Makefile.new
2246   rm -f junk.c junk1.c junk2.c
2247   chmod 444 Makefile.new
2248   mv -f Makefile.new Makefile
2249 )
2250
2251 echo creating src/Makefile
2252 ( cd src
2253   rm -f junk.c junk1.c junk2.c
2254   sed -e '/start of cpp stuff/q' \
2255       < Makefile.c > junk1.c
2256   sed -e '1,/start of cpp stuff/d'\
2257       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
2258       < Makefile.c > junk.c
2259   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
2260       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
2261   cat junk1.c junk2.c > Makefile.new
2262   rm -f junk.c junk1.c junk2.c
2263   chmod 444 Makefile.new
2264   mv -f Makefile.new Makefile
2265 )
2266
2267 if test ! -f src/.gdbinit && test -f $top_srcdir/src/.gdbinit; then
2268   echo creating src/.gdbinit
2269   echo source $top_srcdir/src/.gdbinit > src/.gdbinit
2270 fi
2271
2272 # This is how we know whether to re-run configure in certain cases.
2273 touch src/config.stamp
2274
2275 ], [CPP="$CPP" CPPFLAGS="$CPPFLAGS"])