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, 2001
   7 dnl  Free Software Foundation, Inc.
   8 dnl
   9 dnl  This file is part of GNU Emacs.
  10 dnl
  11 dnl  GNU Emacs is free software; you can redistribute it and/or modify
  12 dnl  it under the terms of the GNU General Public License as published by
  13 dnl  the Free Software Foundation; either version 2, or (at your option)
  14 dnl  any later version.
  15 dnl
  16 dnl  GNU Emacs is distributed in the hope that it will be useful,
  17 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 dnl  GNU General Public License for more details.
  20 dnl
  21 dnl  You should have received a copy of the GNU General Public License
  22 dnl  along with GNU Emacs; see the file COPYING.  If not, write to the
  23 dnl  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 dnl  Boston, MA 02111-1307, USA.
  25
  26 AC_PREREQ(2.8)dnl
  27 AC_INIT(src/lisp.h)
  28 AC_CONFIG_HEADER(src/config.h:src/config.in)
  29
  30 lispdir='${datadir}/emacs/${version}/lisp'
  31 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  32 '${datadir}/emacs/site-lisp:${datadir}/emacs/${version}/leim'
  33 lisppath='${locallisppath}:${lispdir}'
  34 etcdir='${datadir}/emacs/${version}/etc'
  35 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  36 docdir='${datadir}/emacs/${version}/etc'
  37
  38 AC_ARG_WITH(gcc,
  39 [  --without-gcc           don't use GCC to compile Emacs if GCC is found])
  40 AC_ARG_WITH(pop,
  41 [  --without-pop           don't support POP mail retrieval with movemail],
  42 [if test "$withval" = yes; then
  43    AC_DEFINE(MAIL_USE_POP)
  44 else :
  45 fi],
  46 AC_DEFINE(MAIL_USE_POP))
  47 AC_ARG_WITH(kerberos,
  48 [  --with-kerberos         support Kerberos-authenticated POP],
  49 [AC_DEFINE(KERBEROS)])
  50 AC_ARG_WITH(kerberos5,
  51 [  --with-kerberos5        support Kerberos version 5 authenticated POP],
  52 [if test "${with_kerberos5+set}" = set; then
  53   if test "${with_kerberos+set}" != set; then
  54     with_kerberos=yes
  55     AC_DEFINE(KERBEROS)
  56   fi
  57 fi
  58 AC_DEFINE(KERBEROS5)])
  59 AC_ARG_WITH(hesiod,
  60 [  --with-hesiod           support Hesiod to get the POP server host],
  61 [AC_DEFINE(HESIOD)])
  62 dnl This should be the last --with option, because --with-x is
  63 dnl added later on when we find the path of X, and it's best to
  64 dnl keep them together visually.
  65 AC_ARG_WITH(x-toolkit,
  66 [  --with-x-toolkit=KIT    use an X toolkit (KIT = yes/lucid/athena/motif/no)],
  67 [         case "${withval}" in
  68             y | ye | yes )      val=athena ;;
  69             n | no )            val=no  ;;
  70             l | lu | luc | luci | lucid )       val=lucid ;;
  71             a | at | ath | athe | athen | athena )      val=athena ;;
  72             m | mo | mot | moti | motif )       val=motif ;;
  73 dnl These don't currently work.
  74 dnl         o | op | ope | open | open- | open-l | open-lo \
  75 dnl             | open-loo | open-look )        val=open-look ;;
  76             * )
  77 dnl AC_MSG_ERROR([the \`--with-x-toolkit' option is supposed to have a value
  78 dnl which is \`yes', \`no', \`lucid', \`athena', \`motif' or \`open-look'.])
  79 AC_MSG_ERROR([\`--with-x-toolkit=$withval' is invalid\;
  80 this option's value should be \`yes', \`no', \`lucid', \`athena', or \`motif'.
  81 Currently, \`yes', \`athena' and \`lucid' are synonyms.])
  82             ;;
  83           esac
  84           with_x_toolkit=$val
  85 ])
  86 AC_ARG_WITH(xpm,
  87 [  --with-xpm              use -lXpm for displaying XPM images])
  88 AC_ARG_WITH(jpeg,
  89 [  --with-jpeg             use -ljpeg for displaying JPEG images])
  90 AC_ARG_WITH(tiff,
  91 [  --with-tiff             use -ltiff for displaying TIFF images])
  92 AC_ARG_WITH(gif,
  93 [  --with-gif              use -lungif for displaying GIF images])
  94 AC_ARG_WITH(png,
  95 [  --with-png              use -lpng for displaying PNG images])
  96 AC_ARG_WITH(toolkit-scroll-bars,
  97 [  --without-toolkit-scroll-bars
  98                            don't use Motif or Xaw3d scroll bars])
  99 AC_ARG_WITH(xim,
 100 [  --without-xim           don't use X11 XIM])
 101
 102 #### Make srcdir absolute, if it isn't already.  It's important to
 103 #### avoid running the path through pwd unnecessarily, since pwd can
 104 #### give you automounter prefixes, which can go away.  We do all this
 105 #### so Emacs can find its files when run uninstalled.
 106 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 107 unset CDPATH
 108 case "${srcdir}" in
 109   /* ) ;;
 110   . )
 111     ## We may be able to use the $PWD environment variable to make this
 112     ## absolute.  But sometimes PWD is inaccurate.
 113     if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".${PWD}"  ;
 114     then
 115       srcdir="$PWD"
 116     else
 117       srcdir="`(cd ${srcdir}; pwd)`"
 118     fi
 119   ;;
 120   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
 121 esac
 122
 123 #### Check if the source directory already has a configured system in it.
 124 if test `pwd` != `(cd ${srcdir} && pwd)` \
 125    && test -f "${srcdir}/src/config.h" ; then
 126   AC_MSG_WARN([The directory tree \`${srcdir}' is being used
 127    as a build directory right now; it has been configured in its own
 128    right.  To configure in another directory as well, you MUST
 129    use GNU make.  If you do not have GNU make, then you must
 130    now do \`make distclean' in ${srcdir},
 131    and then run $0 again.])
 132
 133 changequote(, )dnl
 134   extrasub='/^VPATH[     ]*=/c\
 135 changequote([, ])dnl
 136 vpath %.c $(srcdir)\
 137 vpath %.h $(srcdir)\
 138 vpath %.y $(srcdir)\
 139 vpath %.l $(srcdir)\
 140 vpath %.s $(srcdir)\
 141 vpath %.in $(srcdir)\
 142 vpath %.texi $(srcdir)'
 143 fi
 144
 145 #### Given the configuration name, set machfile and opsysfile to the
 146 #### names of the m/*.h and s/*.h files we should use.
 147
 148 ### Canonicalize the configuration name.
 149
 150 AC_CANONICAL_HOST
 151 canonical=$host
 152 configuration=$host_alias
 153
 154 changequote(, )dnl
 155
 156 ### If you add support for a new configuration, add code to this
 157 ### switch statement to recognize your configuration name and select
 158 ### the appropriate operating system and machine description files.
 159
 160 ### You would hope that you could choose an m/*.h file pretty much
 161 ### based on the machine portion of the configuration name, and an s-
 162 ### file based on the operating system portion.  However, it turns out
 163 ### that each m/*.h file is pretty manufacturer-specific - for
 164 ### example, apollo.h, hp9000s300.h, mega68k, news.h, and tad68k are
 165 ### all 68000 machines; mips.h, pmax.h, and news-risc are all MIPS
 166 ### machines.  So we basically have to have a special case for each
 167 ### configuration name.
 168 ###
 169 ### As far as handling version numbers on operating systems is
 170 ### concerned, make sure things will fail in a fixable way.  If
 171 ### /etc/MACHINES doesn't say anything about version numbers, be
 172 ### prepared to handle anything reasonably.  If version numbers
 173 ### matter, be sure /etc/MACHINES says something about it.
 174 ###
 175 ### Eric Raymond says we should accept strings like "sysvr4" to mean
 176 ### "System V Release 4"; he writes, "The old convention encouraged
 177 ### confusion between `system' and `release' levels'."
 178
 179 machine='' opsys='' unported=no
 180 case "${canonical}" in
 181
 182   ## NetBSD ports
 183   *-*-netbsd* )
 184     opsys=netbsd
 185     case "${canonical}" in
 186       alpha*-*-netbsd*) machine=alpha ;;
 187       i[3456]86-*-netbsd*) machine=intel386 ;;
 188       m68k-*-netbsd*)
 189                         # This is somewhat bogus.
 190                         machine=hp9000s300 ;;
 191       powerpc-apple-netbsd*) machine=macppc ;;
 192       mips-*-netbsd*)   machine=pmax ;;
 193       mipsel-*-netbsd*) machine=pmax ;;
 194       ns32k-*-netbsd*)  machine=ns32000 ;;
 195       powerpc-*-netbsd*) machine=macppc ;;
 196       sparc*-*-netbsd*) machine=sparc ;;
 197       vax-*-netbsd*)    machine=vax ;;
 198       arm-*-netbsd*)    machine=arm ;;
 199     esac
 200   ;;
 201
 202   ## OpenBSD ports
 203   *-*-openbsd* )
 204     opsys=openbsd
 205     case "${canonical}" in
 206       alpha*-*-openbsd*)        machine=alpha ;;
 207       i386-*-openbsd*)  machine=intel386 ;;
 208       m68k-*-openbsd*)  machine=hp9000s300 ;;
 209       mipsel-*-openbsd*) machine=pmax ;;
 210       ns32k-*-openbsd*) machine=ns32000 ;;
 211       sparc-*-openbsd*) machine=sparc ;;
 212       vax-*-openbsd*)   machine=vax ;;
 213     esac
 214   ;;
 215
 216   ## Acorn RISCiX:
 217   arm-acorn-riscix1.1* )
 218     machine=acorn opsys=riscix1-1
 219   ;;
 220   arm-acorn-riscix1.2* | arm-acorn-riscix )
 221     ## This name is riscix12 instead of riscix1.2
 222     ## to avoid a file name conflict on MSDOS.
 223     machine=acorn opsys=riscix12
 224   ;;
 225
 226   ## BSDI ports
 227   *-*-bsdi* )
 228     opsys=bsdi
 229     case "${canonical}" in
 230       i[345]86-*-bsdi*) machine=intel386 ;;
 231       sparc-*-bsdi*)  machine=sparc ;;
 232       powerpc-*-bsdi*)  machine=macppc ;;
 233     esac
 234     case "${canonical}" in
 235       *-*-bsd386* | *-*-bsdi1* )        opsys=bsd386 ;;
 236       *-*-bsdi2.0* )            opsys=bsdos2 ;;
 237       *-*-bsdi2* )              opsys=bsdos2-1 ;;
 238       *-*-bsdi3* )              opsys=bsdos3 ;;
 239       *-*-bsdi4* )              opsys=bsdos4 ;;
 240     esac
 241   ;;
 242
 243   ## Alliant machines
 244   ## Strictly speaking, we need the version of the alliant operating
 245   ## system to choose the right machine file, but currently the
 246   ## configuration name doesn't tell us enough to choose the right
 247   ## one; we need to give alliants their own operating system name to
 248   ## do this right.  When someone cares, they can help us.
 249   fx80-alliant-* )
 250     machine=alliant4 opsys=bsd4-2
 251   ;;
 252   i860-alliant-* )
 253     machine=alliant-2800 opsys=bsd4-3
 254   ;;
 255
 256   ## Alpha (DEC) machines.
 257   alpha*-dec-osf* )
 258     machine=alpha opsys=osf1
 259     # This is needed to find X11R6.1 libraries for certain tests.
 260     NON_GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
 261     GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
 262     # NON_GNU_CPP is necessary on 5.0 to avoid mangling src/Makefile
 263     # due to non-traditional preprocessing with the current compiler
 264     # defaults.  OSF 4 can also have that compiler version, and there
 265     # seems always to have been a usable /usr/bin/cpp.
 266     NON_GNU_CPP=/usr/bin/cpp
 267     case "${canonical}" in
 268     alpha*-dec-osf[5-9]*)
 269       opsys=osf5-0 ;;
 270     esac
 271   ;;
 272
 273   alpha*-*-linux-gnu* )
 274     machine=alpha opsys=gnu-linux
 275   ;;
 276
 277   arm*-*-linux-gnu* )
 278     machine=arm opsys=gnu-linux
 279   ;;
 280
 281   ppc-*-linux | \
 282   powerpc-*-linux* )
 283     machine=macppc opsys=gnu-linux
 284   ;;
 285
 286   ## Altos 3068
 287   m68*-altos-sysv* )
 288     machine=altos opsys=usg5-2
 289   ;;
 290
 291   ## Amdahl UTS
 292   580-amdahl-sysv* )
 293     machine=amdahl opsys=usg5-2-2
 294   ;;
 295
 296   ## Apollo, Domain/OS
 297   m68*-apollo-* )
 298     machine=apollo opsys=bsd4-3
 299   ;;
 300
 301   ## AT&T 3b2, 3b5, 3b15, 3b20
 302   we32k-att-sysv* )
 303     machine=att3b opsys=usg5-2-2
 304   ;;
 305
 306   ## AT&T 3b1 - The Mighty Unix PC!
 307   m68*-att-sysv* )
 308     machine=7300 opsys=usg5-2-2
 309   ;;
 310
 311   ## Bull dpx20
 312   rs6000-bull-bosx* )
 313     machine=ibmrs6000 opsys=aix3-2
 314   ;;
 315
 316   ## Bull dpx2
 317   m68*-bull-sysv3* )
 318     machine=dpx2 opsys=usg5-3
 319   ;;
 320
 321   ## Bull sps7
 322   m68*-bull-sysv2* )
 323     machine=sps7 opsys=usg5-2
 324   ;;
 325
 326   ## CCI 5/32, 6/32 -- see "Tahoe".
 327
 328   ## Celerity
 329   ## I don't know what configuration name to use for this; config.sub
 330   ## doesn't seem to know anything about it.  Hey, Celerity users, get
 331   ## in touch with us!
 332   celerity-celerity-bsd* )
 333     machine=celerity opsys=bsd4-2
 334   ;;
 335
 336   ## Clipper
 337   ## What operating systems does this chip run that Emacs has been
 338   ## tested on?
 339   clipper-* )
 340     machine=clipper
 341     ## We'll use the catch-all code at the bottom to guess the
 342     ## operating system.
 343   ;;
 344
 345   ## Convex
 346   *-convex-bsd* | *-convex-convexos* )
 347     machine=convex opsys=bsd4-3
 348     ## Prevents spurious white space in makefiles - d.m.cooke@larc.nasa.gov
 349     NON_GNU_CPP="cc -E -P"
 350   ;;
 351
 352   ## Cubix QBx/386
 353   i[3456]86-cubix-sysv* )
 354     machine=intel386 opsys=usg5-3
 355   ;;
 356
 357   ## Cydra 5
 358   cydra*-cydrome-sysv* )
 359     machine=cydra5 opsys=usg5-3
 360   ;;
 361
 362   ## Data General AViiON Machines
 363   ## DG changed naming conventions with the release of 5.4.4.10, they
 364   ## dropped the initial 5.4 but left the intervening R.  Because of the
 365   ## R this shouldn't conflict with older versions of the OS (which I
 366   ## think were named like dgux4.*). In addition, DG new AViiONs series
 367   ## uses either Motorola M88k or Intel Pentium CPUs.
 368   m88k-dg-dguxR4.* | m88k-dg-dgux4* )
 369     machine=aviion opsys=dgux4
 370   ;;
 371   m88k-dg-dgux5.4R3* | m88k-dg-dgux5.4.3* )
 372     ## This name is dgux5-4-3 instead of dgux5-4r3
 373     ## to avoid a file name conflict on MSDOS.
 374     machine=aviion opsys=dgux5-4-3
 375   ;;
 376   m88k-dg-dgux5.4R2* | m88k-dg-dgux5.4.2* )
 377     machine=aviion opsys=dgux5-4r2
 378   ;;
 379   m88k-dg-dgux* )
 380     machine=aviion opsys=dgux
 381   ;;
 382
 383   ## Data General AViiON Intel (x86) Machines
 384   ## Exists from 5.4.3 (current i586-dg-dguxR4.11)
 385   ## Ehud Karni, 1998-may-30, ehud@unix.simonwiesel.co.il
 386   i[345]86-dg-dguxR4* )
 387     machine=aviion-intel opsys=dgux4
 388   ;;
 389
 390   ## DECstations
 391   mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0* | mips-dec-bsd4.2* )
 392     machine=pmax opsys=bsd4-2
 393   ;;
 394   mips-dec-ultrix4.[12]* | mips-dec-bsd* )
 395     machine=pmax opsys=bsd4-3
 396   ;;
 397   mips-dec-ultrix* )
 398     machine=pmax opsys=ultrix4-3
 399   ;;
 400   mips-dec-osf* )
 401     machine=pmax opsys=osf1
 402   ;;
 403   mips-dec-mach_bsd4.3* )
 404     machine=pmax opsys=mach-bsd4-3
 405   ;;
 406
 407   ## Motorola Delta machines
 408   m68k-motorola-sysv* | m68000-motorola-sysv* )
 409     machine=delta opsys=usg5-3
 410     if test -z "`type gnucc | grep 'not found'`"
 411     then
 412       if test -s /etc/167config
 413       then CC="gnucc -m68040"
 414       else CC="gnucc -m68881"
 415       fi
 416     else
 417       if test -z "`type gcc | grep 'not found'`"
 418       then CC=gcc
 419       else CC=cc
 420       fi
 421     fi
 422   ;;
 423   m88k-motorola-sysv4* )
 424     # jbotte@bnr.ca says that UNIX_System_V <hostName> 4.0 R40V4.3 m88k mc88110
 425     # needs POSIX_SIGNALS and therefore needs usg5-4-2.
 426     # I hope there are not other 4.0 versions for this machine
 427     # which really need usg5-4 instead.
 428     machine=delta88k opsys=usg5-4-2
 429   ;;
 430   m88k-motorola-sysv* | m88k-motorola-m88kbcs* )
 431     machine=delta88k opsys=usg5-3
 432   ;;
 433
 434   ## Dual machines
 435   m68*-dual-sysv* )
 436     machine=dual opsys=usg5-2
 437   ;;
 438   m68*-dual-uniplus* )
 439     machine=dual opsys=unipl5-2
 440   ;;
 441
 442   ## Elxsi 6400
 443   elxsi-elxsi-sysv* )
 444     machine=elxsi opsys=usg5-2
 445   ;;
 446
 447   ## Encore machines
 448   ns16k-encore-bsd* )
 449     machine=ns16000 opsys=umax
 450   ;;
 451
 452   ## The GEC 63 - apparently, this port isn't really finished yet.
 453   #  I'm sure we finished off the last of the machines, though.  -- fx
 454
 455   ## Gould Power Node and NP1
 456   pn-gould-bsd4.2* )
 457     machine=gould opsys=bsd4-2
 458   ;;
 459   pn-gould-bsd4.3* )
 460     machine=gould opsys=bsd4-3
 461   ;;
 462   np1-gould-bsd* )
 463     machine=gould-np1 opsys=bsd4-3
 464   ;;
 465
 466   ## Harris Night Hawk machines running CX/UX (a 5000 looks just like a 4000
 467   ## as far as Emacs is concerned).
 468   m88k-harris-cxux* )
 469     # Build needs to be different on 7.0 and later releases
 470     case "`uname -r`" in
 471        [56].[0-9] ) machine=nh4000 opsys=cxux ;;
 472        [7].[0-9] ) machine=nh4000 opsys=cxux7 ;;
 473     esac
 474     NON_GNU_CPP="/lib/cpp"
 475   ;;
 476   ## Harris ecx or gcx running CX/UX (Series 1200, Series 3000)
 477   m68k-harris-cxux* )
 478     machine=nh3000 opsys=cxux
 479   ;;
 480   ## Harris power pc NightHawk running Power UNIX (Series 6000)
 481   powerpc-harris-powerunix )
 482     machine=nh6000 opsys=powerunix
 483     NON_GNU_CPP="cc -Xo -E -P"
 484   ;;
 485   ## SR2001/SR2201 running HI-UX/MPP
 486   hppa1.1-hitachi-hiuxmpp* )
 487     machine=sr2k opsys=hiuxmpp
 488   ;;
 489   ## Honeywell XPS100
 490   xps*-honeywell-sysv* )
 491     machine=xps100 opsys=usg5-2
 492   ;;
 493
 494   ## HP 9000 series 200 or 300
 495   m68*-hp-bsd* )
 496     machine=hp9000s300 opsys=bsd4-3
 497   ;;
 498   ## HP/UX 7, 8, 9, and 10 are supported on these machines.
 499   m68*-hp-hpux* )
 500     case "`uname -r`" in
 501       ## Someone's system reports A.B8.05 for this.
 502       ## I wonder what other possibilities there are.
 503       *.B8.* ) machine=hp9000s300 opsys=hpux8 ;;
 504       *.08.* ) machine=hp9000s300 opsys=hpux8 ;;
 505       *.09.* ) machine=hp9000s300 opsys=hpux9 ;;
 506       *.1[0-9].* ) machine=hp9000s300 opsys=hpux9shr ;;
 507       *) machine=hp9000s300 opsys=hpux ;;
 508     esac
 509   ;;
 510
 511   ## HP 9000 series 700 and 800, running HP/UX
 512   hppa*-hp-hpux7* )
 513     machine=hp800 opsys=hpux
 514   ;;
 515   hppa*-hp-hpux8* )
 516     machine=hp800 opsys=hpux8
 517   ;;
 518   hppa*-hp-hpux9shr* )
 519     machine=hp800 opsys=hpux9shr
 520   ;;
 521   hppa*-hp-hpux9* )
 522     machine=hp800 opsys=hpux9
 523   ;;
 524   hppa*-hp-hpux1[0-9]* )
 525     machine=hp800 opsys=hpux10
 526   ;;
 527
 528   ## HP 9000 series 700 and 800, running HP/UX
 529   hppa*-hp-hpux* )
 530     ## Cross-compilation?  Nah!
 531     case "`uname -r`" in
 532       ## Someone's system reports A.B8.05 for this.
 533       ## I wonder what other possibilities there are.
 534       *.B8.* ) machine=hp800 opsys=hpux8 ;;
 535       *.08.* ) machine=hp800 opsys=hpux8 ;;
 536       *.09.* ) machine=hp800 opsys=hpux9 ;;
 537       *) machine=hp800 opsys=hpux10 ;;
 538     esac
 539   ;;
 540   hppa*-*-nextstep* )
 541     machine=hp800 opsys=nextstep
 542   ;;
 543
 544   ## Orion machines
 545   orion-orion-bsd* )
 546     machine=orion opsys=bsd4-2
 547   ;;
 548   clipper-orion-bsd* )
 549     machine=orion105 opsys=bsd4-2
 550   ;;
 551
 552   ## IBM machines
 553   i[3456]86-ibm-aix1.1* )
 554     machine=ibmps2-aix opsys=usg5-2-2
 555   ;;
 556   i[3456]86-ibm-aix1.[23]* | i[3456]86-ibm-aix* )
 557     machine=ibmps2-aix opsys=usg5-3
 558   ;;
 559   i370-ibm-aix*)
 560     machine=ibm370aix opsys=usg5-3
 561   ;;
 562   rs6000-ibm-aix3.1* | powerpc-ibm-aix3.1*  )
 563     machine=ibmrs6000 opsys=aix3-1
 564   ;;
 565   rs6000-ibm-aix3.2.5 | powerpc-ibm-aix3.2.5 )
 566     machine=ibmrs6000 opsys=aix3-2-5
 567   ;;
 568   rs6000-ibm-aix4.1* | powerpc-ibm-aix4.1*  )
 569     machine=ibmrs6000 opsys=aix4-1
 570   ;;
 571   rs6000-ibm-aix4.2* | powerpc-ibm-aix4.2*  )
 572     machine=ibmrs6000 opsys=aix4-2
 573   ;;
 574   rs6000-ibm-aix4.0* | powerpc-ibm-aix4.0*  )
 575     machine=ibmrs6000 opsys=aix4
 576   ;;
 577   rs6000-ibm-aix4* | powerpc-ibm-aix4*  )
 578     machine=ibmrs6000 opsys=aix4-1
 579   ;;
 580   rs6000-ibm-aix* | powerpc-ibm-aix* )
 581     machine=ibmrs6000 opsys=aix3-2
 582   ;;
 583   romp-ibm-bsd4.3* )
 584     machine=ibmrt opsys=bsd4-3
 585   ;;
 586   romp-ibm-bsd4.2* )
 587     machine=ibmrt opsys=bsd4-2
 588   ;;
 589   romp-ibm-aos4.3* )
 590     machine=ibmrt opsys=bsd4-3
 591   ;;
 592   romp-ibm-aos4.2* )
 593     machine=ibmrt opsys=bsd4-2
 594   ;;
 595   romp-ibm-aos* )
 596     machine=ibmrt opsys=bsd4-3
 597   ;;
 598   romp-ibm-bsd* )
 599     machine=ibmrt opsys=bsd4-3
 600   ;;
 601   romp-ibm-aix* )
 602     machine=ibmrt-aix opsys=usg5-2-2
 603   ;;
 604
 605   ## Integrated Solutions `Optimum V'
 606   m68*-isi-bsd4.2* )
 607     machine=isi-ov opsys=bsd4-2
 608   ;;
 609   m68*-isi-bsd4.3* )
 610     machine=isi-ov opsys=bsd4-3
 611   ;;
 612
 613   ## Intel 386 machines where we do care about the manufacturer
 614   i[3456]86-intsys-sysv* )
 615     machine=is386 opsys=usg5-2-2
 616   ;;
 617
 618   ## Prime EXL
 619   i[3456]86-prime-sysv* )
 620     machine=i386 opsys=usg5-3
 621   ;;
 622
 623   ## Sequent Symmetry running Dynix
 624   i[3456]86-sequent-bsd* )
 625     machine=symmetry opsys=bsd4-3
 626   ;;
 627
 628   ## Sequent Symmetry running ptx 4, which is a modified SVR4.
 629   i[3456]86-sequent-ptx4* | i[3456]86-sequent-sysv4* )
 630     machine=sequent-ptx opsys=ptx4
 631     NON_GNU_CPP=/lib/cpp
 632   ;;
 633
 634   ## Sequent Symmetry running DYNIX/ptx
 635   ## Use the old cpp rather than the newer ANSI one.
 636   i[3456]86-sequent-ptx* )
 637     machine=sequent-ptx opsys=ptx
 638     NON_GNU_CPP="/lib/cpp"
 639   ;;
 640
 641   ## ncr machine running svr4.3.
 642   i[3456]86-ncr-sysv4.3 )
 643     machine=ncr386 opsys=usg5-4-3
 644   ;;
 645
 646   ## Unspecified sysv on an ncr machine defaults to svr4.2.
 647   ## (Plain usg5-4 doesn't turn on POSIX signals, which we need.)
 648   i[3456]86-ncr-sysv* )
 649     machine=ncr386 opsys=usg5-4-2
 650   ;;
 651
 652   ## Intel Paragon OSF/1
 653   i860-intel-osf1* )
 654     machine=paragon opsys=osf1 NON_GNU_CPP=/usr/mach/lib/cpp
 655   ;;
 656
 657   ## Intel 860
 658   i860-*-sysv4* )
 659     machine=i860 opsys=usg5-4
 660     NON_GNU_CC="/bin/cc" # Ie, not the one in /usr/ucb/cc.
 661     NON_GNU_CPP="/usr/ccs/lib/cpp" # cc -E tokenizes macro expansion.
 662   ;;
 663
 664   ## Macintosh PowerPC
 665   powerpc*-*-linux-gnu* )
 666     machine=macppc opsys=gnu-linux
 667   ;;
 668
 669   ## Masscomp machines
 670   m68*-masscomp-rtu* )
 671     machine=masscomp opsys=rtu
 672   ;;
 673
 674   ## Megatest machines
 675   m68*-megatest-bsd* )
 676     machine=mega68 opsys=bsd4-2
 677   ;;
 678
 679   ## Workstations sold by MIPS
 680   ## This is not necessarily all workstations using the MIPS processor -
 681   ## Irises are produced by SGI, and DECstations by DEC.
 682
 683   ## etc/MACHINES lists mips.h and mips4.h as possible machine files,
 684   ## and usg5-2-2 and bsd4-3 as possible OS files.  The only guidance
 685   ## it gives for choosing between the alternatives seems to be "Use
 686   ## -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
 687   ## the BSD world."  I'll assume that these are instructions for
 688   ## handling two odd situations, and that every other situation
 689   ## should use mips.h and usg5-2-2, they being listed first.
 690   mips-mips-usg* )
 691     machine=mips4
 692     ## Fall through to the general code at the bottom to decide on the OS.
 693   ;;
 694   mips-mips-riscos4* )
 695     machine=mips4 opsys=bsd4-3
 696     NON_GNU_CC="cc -systype bsd43"
 697     NON_GNU_CPP="cc -systype bsd43 -E"
 698   ;;
 699   mips-mips-riscos5* )
 700     machine=mips4 opsys=riscos5
 701     NON_GNU_CC="cc -systype bsd43"
 702     NON_GNU_CPP="cc -systype bsd43 -E"
 703   ;;
 704   mips-mips-bsd* )
 705     machine=mips opsys=bsd4-3
 706   ;;
 707   mips-mips-* )
 708     machine=mips opsys=usg5-2-2
 709   ;;
 710
 711   ## NeXT
 712   m68*-next-* | m68k-*-nextstep* )
 713     machine=m68k opsys=nextstep
 714   ;;
 715
 716   ## The complete machine from National Semiconductor
 717   ns32k-ns-genix* )
 718     machine=ns32000 opsys=usg5-2
 719   ;;
 720
 721   ## NCR machines
 722   m68*-ncr-sysv2* | m68*-ncr-sysvr2* )
 723     machine=tower32 opsys=usg5-2-2
 724   ;;
 725   m68*-ncr-sysv3* | m68*-ncr-sysvr3* )
 726     machine=tower32v3 opsys=usg5-3
 727   ;;
 728
 729   ## NEC EWS4800
 730   mips-nec-sysv4*)
 731   machine=ews4800 opsys=ux4800
 732   ;;
 733
 734   ## Nixdorf Targon 31
 735   m68*-nixdorf-sysv* )
 736     machine=targon31 opsys=usg5-2-2
 737   ;;
 738
 739   ## Nu (TI or LMI)
 740   m68*-nu-sysv* )
 741     machine=nu opsys=usg5-2
 742   ;;
 743
 744   ## Plexus
 745   m68*-plexus-sysv* )
 746     machine=plexus opsys=usg5-2
 747   ;;
 748
 749   ## PowerPC reference platform
 750   powerpcle-*-solaris2* )
 751     machine=prep
 752     opsys=sol2-5
 753   ;;
 754
 755   ## Pyramid machines
 756   ## I don't really have any idea what sort of processor the Pyramid has,
 757   ## so I'm assuming it is its own architecture.
 758   pyramid-pyramid-bsd* )
 759     machine=pyramid opsys=bsd4-2
 760   ;;
 761
 762   ## Sequent Balance
 763   ns32k-sequent-bsd4.2* )
 764     machine=sequent opsys=bsd4-2
 765   ;;
 766   ns32k-sequent-bsd4.3* )
 767     machine=sequent opsys=bsd4-3
 768   ;;
 769
 770   ## Siemens Nixdorf
 771   mips-siemens-sysv* | mips-sni-sysv*)
 772     machine=mips-siemens opsys=usg5-4
 773     NON_GNU_CC=/usr/ccs/bin/cc
 774     NON_GNU_CPP=/usr/ccs/lib/cpp
 775   ;;
 776
 777   ## Silicon Graphics machines
 778   ## Iris 2500 and Iris 2500 Turbo (aka the Iris 3030)
 779   m68*-sgi-iris3.5* )
 780     machine=irist opsys=iris3-5
 781   ;;
 782   m68*-sgi-iris3.6* | m68*-sgi-iris*)
 783     machine=irist opsys=iris3-6
 784   ;;
 785   ## Iris 4D
 786   mips-sgi-irix3* )
 787     machine=iris4d opsys=irix3-3
 788   ;;
 789   mips-sgi-irix4* )
 790     machine=iris4d opsys=irix4-0
 791   ;;
 792   mips-sgi-irix6.5 )
 793     machine=iris4d opsys=irix6-5
 794     # Without defining _LANGUAGE_C, things get masked out in the headers
 795     # so that, for instance, grepping for `free' in stdlib.h fails and
 796     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 797     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 798     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 799   ;;
 800   mips-sgi-irix6* )
 801     machine=iris4d opsys=irix6-0
 802     # It's not clear whether -D_LANGUAGE_C is necessary as it is for 6.5,
 803     # but presumably it does no harm.
 804     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 805     # -32 probably isn't necessary in later v.6s -- anyone know which?
 806     NON_GCC_TEST_OPTIONS=-32
 807   ;;
 808   mips-sgi-irix5.[01]* )
 809     machine=iris4d opsys=irix5-0
 810   ;;
 811   mips-sgi-irix5* | mips-sgi-irix* )
 812     machine=iris4d opsys=irix5-2
 813   ;;
 814
 815   ## SONY machines
 816   m68*-sony-bsd4.2* )
 817     machine=news opsys=bsd4-2
 818   ;;
 819   m68*-sony-bsd4.3* )
 820     machine=news opsys=bsd4-3
 821   ;;
 822   m68*-sony-newsos3* | m68*-sony-news3*)
 823     machine=news opsys=bsd4-3
 824   ;;
 825   mips-sony-bsd* | mips-sony-newsos4* | mips-sony-news4*)
 826     machine=news-risc opsys=bsd4-3
 827   ;;
 828   mips-sony-newsos6* )
 829     machine=news-r6 opsys=newsos6
 830   ;;
 831   mips-sony-news* )
 832     machine=news-risc opsys=newsos5
 833   ;;
 834
 835   ## Stride
 836   m68*-stride-sysv* )
 837     machine=stride opsys=usg5-2
 838   ;;
 839
 840   ## Suns
 841   sparc-*-linux-gnu* | sparc64-*-linux-gnu* )
 842     machine=sparc opsys=gnu-linux
 843   ;;
 844
 845   *-auspex-sunos* | *-sun-sunos* | *-sun-bsd* | *-sun-solaris* \
 846     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* | powerpc*-*-solaris2* \
 847     | rs6000-*-solaris2*)
 848     case "${canonical}" in
 849       m68*-sunos1* )    machine=sun1 ;;
 850       m68*-sunos2* )    machine=sun2 ;;
 851       m68* )            machine=sun3 ;;
 852       i[3456]86-sun-sunos[34]* )        machine=sun386 ;;
 853       i[3456]86-*-* )     machine=intel386 ;;
 854       powerpcle* )      machine=powerpcle ;;
 855       powerpc* | rs6000* )  machine=ibmrs6000 ;;
 856       sparc* )          machine=sparc ;;
 857       * )               unported=yes ;;
 858     esac
 859     case "${canonical}" in
 860       ## The Sun386 didn't get past 4.0.
 861       i[3456]86-*-sunos4          ) opsys=sunos4-0 ;;
 862       *-sunos4.0*         ) opsys=sunos4-0 ;;
 863       *-sunos4.1.[3-9]*noshare )
 864                 ## This name is sunos413 instead of sunos4-1-3
 865                 ## to avoid a file name conflict on MSDOS.
 866                 opsys=sunos413
 867                 NON_GNU_CPP=/usr/lib/cpp
 868                 NON_GCC_TEST_OPTIONS=-Bstatic
 869                 GCC_TEST_OPTIONS=-static
 870                 ;;
 871       *-sunos4.1.[3-9]* | *-sunos4shr*)
 872                 opsys=sunos4shr
 873                 NON_GNU_CPP=/usr/lib/cpp
 874                 ;;
 875       *-sunos4* | *-sunos )
 876                 opsys=sunos4-1
 877                 NON_GCC_TEST_OPTIONS=-Bstatic
 878                 GCC_TEST_OPTIONS=-static
 879                 ;;
 880       *-sunos5.3* | *-solaris2.3* )
 881                 opsys=sol2-3
 882                 NON_GNU_CPP=/usr/ccs/lib/cpp
 883                 ;;
 884       *-sunos5.4* | *-solaris2.4* )
 885                 opsys=sol2-4
 886                 NON_GNU_CPP=/usr/ccs/lib/cpp
 887                 RANLIB="ar -ts"
 888                 ;;
 889       *-sunos5.5* | *-solaris2.5* )
 890                 opsys=sol2-5
 891                 NON_GNU_CPP=/usr/ccs/lib/cpp
 892                 RANLIB="ar -ts"
 893                 ;;
 894       *-sunos5* | *-solaris* )
 895                 opsys=sol2-5
 896                 NON_GNU_CPP=/usr/ccs/lib/cpp
 897                 ;;
 898       *                   ) opsys=bsd4-2   ;;
 899     esac
 900     ## Watch out for a compiler that we know will not work.
 901     case "${canonical}" in
 902      *-solaris* | *-sunos5* )
 903                 if [ "x$CC" = x/usr/ucb/cc ]; then
 904                   ## /usr/ucb/cc doesn't work;
 905                   ## we should find some other compiler that does work.
 906                   unset CC
 907                 fi
 908                 ;;
 909       *) ;;
 910     esac
 911   ;;
 912   sparc-*-nextstep* )
 913     machine=sparc opsys=nextstep
 914   ;;
 915
 916   ## Tadpole 68k
 917   m68*-tadpole-sysv* )
 918     machine=tad68k opsys=usg5-3
 919   ;;
 920
 921   ## Tahoe machines
 922   tahoe-tahoe-bsd4.2* )
 923     machine=tahoe opsys=bsd4-2
 924   ;;
 925   tahoe-tahoe-bsd4.3* )
 926     machine=tahoe opsys=bsd4-3
 927   ;;
 928
 929   ## Tandem Integrity S2
 930   mips-tandem-sysv* )
 931     machine=tandem-s2 opsys=usg5-3
 932   ;;
 933
 934   ## Tektronix XD88
 935   m88k-tektronix-sysv3* )
 936   machine=tekxd88 opsys=usg5-3
 937   ;;
 938
 939   ## Tektronix 16000 box (6130?)
 940   ns16k-tektronix-bsd* )
 941     machine=ns16000 opsys=bsd4-2
 942   ;;
 943   ## Tektronix 4300
 944   ## src/m/tek4300.h hints that this is a m68k machine.
 945   m68*-tektronix-bsd* )
 946     machine=tek4300 opsys=bsd4-3
 947   ;;
 948
 949   ## Titan P2 or P3
 950   ## We seem to have lost the machine-description file titan.h!
 951   titan-titan-sysv* )
 952     machine=titan opsys=usg5-3
 953   ;;
 954
 955   ## Ustation E30 (SS5E)
 956   m68*-unisys-uniplus* )
 957     machine=ustation opsystem=unipl5-2
 958   ;;
 959
 960   ## Vaxen.
 961   vax-dec-* )
 962     machine=vax
 963     case "${canonical}" in
 964       *-bsd4.1* )                                       opsys=bsd4-1 ;;
 965       *-bsd4.2* | *-ultrix[0-3].* | *-ultrix4.0* )      opsys=bsd4-2 ;;
 966       *-bsd4.3* | *-ultrix* )                           opsys=bsd4-3 ;;
 967       *-sysv[01]* | *-sysvr[01]* )                      opsys=usg5-0 ;;
 968       *-sysv2* | *-sysvr2* )                            opsys=usg5-2 ;;
 969       *-vms* )                                          opsys=vms ;;
 970       * )                                               unported=yes
 971     esac
 972   ;;
 973
 974   ## Whitechapel MG1
 975   ns16k-whitechapel-* )
 976     machine=mg1
 977     ## We don't know what sort of OS runs on these; we'll let the
 978     ## operating system guessing code below try.
 979   ;;
 980
 981   ## Wicat
 982   m68*-wicat-sysv* )
 983     machine=wicat opsys=usg5-2
 984   ;;
 985
 986   ## IA-64
 987   ia64*-*-linux* )
 988     machine=ia64 opsys=gnu-linux
 989   ;;
 990
 991   ## Intel 386 machines where we don't care about the manufacturer
 992   i[3456]86-*-* )
 993     machine=intel386
 994     case "${canonical}" in
 995       *-lynxos* )               opsys=lynxos ;;
 996       *-isc1.* | *-isc2.[01]* ) opsys=386-ix ;;
 997       *-isc2.2* )               opsys=isc2-2 ;;
 998       *-isc4.0* )               opsys=isc4-0 ;;
 999       *-isc4.* )                opsys=isc4-1
1000                                 GCC_TEST_OPTIONS=-posix
1001                                 NON_GCC_TEST_OPTIONS=-Xp
1002                                 ;;
1003       *-isc* )                  opsys=isc3-0 ;;
1004       *-esix5* )                opsys=esix5r4; NON_GNU_CPP=/usr/lib/cpp ;;
1005       *-esix* )                 opsys=esix ;;
1006       *-xenix* )                opsys=xenix ;;
1007       *-linux-gnu* )            opsys=gnu-linux ;;
1008       *-sco3.2v4* )             opsys=sco4 ; NON_GNU_CPP=/lib/cpp  ;;
1009       *-sco3.2v5* )             opsys=sco5
1010                                 NON_GNU_CPP=/lib/cpp
1011                                 # Prevent -belf from being passed to $CPP.
1012                                 # /lib/cpp does not accept it.
1013                                 OVERRIDE_CPPFLAGS=" "
1014                                 ;;
1015       *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
1016       *-386bsd* )               opsys=386bsd ;;
1017       *-freebsd* )              opsys=freebsd ;;
1018       *-nextstep* )             opsys=nextstep ;;
1019       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
1020     esac
1021   ;;
1022
1023   ## m68k Linux-based GNU system
1024   m68k-*-linux-gnu* )
1025     machine=m68k opsys=gnu-linux
1026   ;;
1027
1028   ## Mips Linux-based GNU system
1029   mips-*-linux-gnu* )
1030     machine=mips opsys=gnu-linux
1031   ;;
1032
1033   ## UXP/DS
1034   sparc-fujitsu-sysv4* )
1035     machine=sparc opsys=uxpds
1036     NON_GNU_CPP=/usr/ccs/lib/cpp
1037     RANLIB="ar -ts"
1038   ;;
1039
1040   ## UXP/V
1041   f301-fujitsu-uxpv4.1)
1042     machine=f301 opsys=uxpv
1043   ;;
1044
1045   * )
1046     unported=yes
1047   ;;
1048 esac
1049
1050 ### If the code above didn't choose an operating system, just choose
1051 ### an operating system based on the configuration name.  You really
1052 ### only want to use this when you have no idea what the right
1053 ### operating system is; if you know what operating systems a machine
1054 ### runs, it's cleaner to make it explicit in the case statement
1055 ### above.
1056 if test x"${opsys}" = x; then
1057   case "${canonical}" in
1058     *-gnu* )                            opsys=gnu ;;
1059     *-bsd4.[01] )                       opsys=bsd4-1 ;;
1060     *-bsd4.2 )                          opsys=bsd4-2 ;;
1061     *-bsd4.3 )                          opsys=bsd4-3 ;;
1062     *-sysv0 | *-sysvr0 )                opsys=usg5-0 ;;
1063     *-sysv2 | *-sysvr2 )                opsys=usg5-2 ;;
1064     *-sysv2.2 | *-sysvr2.2 )            opsys=usg5-2-2 ;;
1065     *-sysv3* | *-sysvr3* )              opsys=usg5-3 ;;
1066     *-sysv4.2uw* )                      opsys=unixware ;;
1067     *-sysv4.1* | *-sysvr4.1* )
1068         NON_GNU_CPP=/usr/lib/cpp
1069         opsys=usg5-4 ;;
1070     *-sysv4.[2-9]* | *-sysvr4.[2-9]* )
1071         if [ x$NON_GNU_CPP = x ]; then
1072           if [ -f /usr/ccs/lib/cpp ]; then
1073             NON_GNU_CPP=/usr/ccs/lib/cpp
1074           else
1075             NON_GNU_CPP=/lib/cpp
1076           fi
1077         fi
1078         opsys=usg5-4-2 ;;
1079     *-sysv4* | *-sysvr4* )              opsys=usg5-4 ;;
1080     * )
1081       unported=yes
1082     ;;
1083   esac
1084 fi
1085
1086 changequote([, ])dnl
1087
1088 if test $unported = yes; then
1089   AC_MSG_ERROR([Emacs hasn't been ported to \`${canonical}' systems.
1090 Check \`etc/MACHINES' for recognized configuration names.])
1091 fi
1092
1093 machfile="m/${machine}.h"
1094 opsysfile="s/${opsys}.h"
1095
1096
1097 #### Choose a compiler.
1098 test -n "$CC" && cc_specified=yes
1099
1100 # Save the value of CFLAGS that the user specified.
1101 SPECIFIED_CFLAGS="$CFLAGS"
1102
1103 case ${with_gcc} in
1104   "yes" ) CC="gcc" GCC=yes ;;
1105   "no"  ) : ${CC=cc} ;;
1106   * ) AC_PROG_CC
1107 esac
1108
1109 # On Suns, sometimes $CPP names a directory.
1110 if test -n "$CPP" && test -d "$CPP"; then
1111   CPP=
1112 fi
1113
1114 #### Some systems specify a CPP to use unless we are using GCC.
1115 #### Now that we know whether we are using GCC, we can decide whether
1116 #### to use that one.
1117 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
1118 then
1119   CPP="$NON_GNU_CPP"
1120 fi
1121
1122 #### Some systems specify a CC to use unless we are using GCC.
1123 #### Now that we know whether we are using GCC, we can decide whether
1124 #### to use that one.
1125 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
1126   test x$cc_specified != xyes
1127 then
1128   CC="$NON_GNU_CC"
1129 fi
1130
1131 if test x$GCC = xyes && test "x$GCC_TEST_OPTIONS" != x
1132 then
1133   CC="$CC $GCC_TEST_OPTIONS"
1134 fi
1135
1136 if test x$GCC = x && test "x$NON_GCC_TEST_OPTIONS" != x
1137 then
1138   CC="$CC $NON_GCC_TEST_OPTIONS"
1139 fi
1140
1141 if test x$GCC = xyes && test "x$GCC_LINK_TEST_OPTIONS" != x
1142 then
1143   ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1144 fi
1145
1146 if test x$GCC = x && test "x$NON_GCC_LINK_TEST_OPTIONS" != x
1147 then
1148   ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1149 fi
1150
1151 #### Some other nice autoconf tests.  If you add a test here which
1152 #### should make an entry in src/config.h, don't forget to add an
1153 #### #undef clause to src/config.h.in for autoconf to modify.
1154
1155 dnl checks for programs
1156 AC_PROG_LN_S
1157 AC_PROG_CPP
1158 AC_PROG_INSTALL
1159 AC_PROG_YACC
1160 if test "x$RANLIB" = x; then
1161   AC_PROG_RANLIB
1162 fi
1163
1164 dnl checks for Unix variants
1165 AC_AIX
1166
1167 #### Extract some information from the operating system and machine files.
1168
1169 AC_CHECKING([the machine- and system-dependent files to find out
1170  - which libraries the lib-src programs will want, and
1171  - whether the GNU malloc routines are usable])
1172
1173 ### First figure out CFLAGS (which we use for running the compiler here)
1174 ### and REAL_CFLAGS (which we use for real compilation).
1175 ### The two are the same except on a few systems, where they are made
1176 ### different to work around various lossages.  For example,
1177 ### GCC 2.5 on GNU/Linux needs them to be different because it treats -g
1178 ### as implying static linking.
1179
1180 ### If the CFLAGS env var is specified, we use that value
1181 ### instead of the default.
1182
1183 ### It's not important that this name contain the PID; you can't run
1184 ### two configures in the same directory and have anything work
1185 ### anyway.
1186 tempcname="conftest.c"
1187
1188 echo '
1189 #include "'${srcdir}'/src/'${opsysfile}'"
1190 #include "'${srcdir}'/src/'${machfile}'"
1191 #ifndef LIBS_MACHINE
1192 #define LIBS_MACHINE
1193 #endif
1194 #ifndef LIBS_SYSTEM
1195 #define LIBS_SYSTEM
1196 #endif
1197 #ifndef C_SWITCH_SYSTEM
1198 #define C_SWITCH_SYSTEM
1199 #endif
1200 #ifndef C_SWITCH_MACHINE
1201 #define C_SWITCH_MACHINE
1202 #endif
1203 configure___ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
1204 configure___ c_switch_system=C_SWITCH_SYSTEM
1205 configure___ c_switch_machine=C_SWITCH_MACHINE
1206
1207 #ifndef LIB_X11_LIB
1208 #define LIB_X11_LIB -lX11
1209 #endif
1210
1211 #ifndef LIBX11_MACHINE
1212 #define LIBX11_MACHINE
1213 #endif
1214
1215 #ifndef LIBX11_SYSTEM
1216 #define LIBX11_SYSTEM
1217 #endif
1218 configure___ LIBX=LIB_X11_LIB LIBX11_MACHINE LIBX11_SYSTEM
1219
1220 #ifdef UNEXEC
1221 configure___ unexec=UNEXEC
1222 #else
1223 configure___ unexec=unexec.o
1224 #endif
1225
1226 #ifdef SYSTEM_MALLOC
1227 configure___ system_malloc=yes
1228 #else
1229 configure___ system_malloc=no
1230 #endif
1231
1232 #ifdef USE_MMAP_FOR_BUFFERS
1233 configure___ use_mmap_for_buffers=yes
1234 #else
1235 configure___ use_mmap_for_buffers=no
1236 #endif
1237
1238 #ifndef C_DEBUG_SWITCH
1239 #define C_DEBUG_SWITCH -g
1240 #endif
1241
1242 #ifndef C_OPTIMIZE_SWITCH
1243 #ifdef __GNUC__
1244 #define C_OPTIMIZE_SWITCH -O2
1245 #else
1246 #define C_OPTIMIZE_SWITCH -O
1247 #endif
1248 #endif
1249
1250 #ifndef LD_SWITCH_MACHINE
1251 #define LD_SWITCH_MACHINE
1252 #endif
1253
1254 #ifndef LD_SWITCH_SYSTEM
1255 #define LD_SWITCH_SYSTEM
1256 #endif
1257
1258 #ifndef LD_SWITCH_X_SITE_AUX
1259 #define LD_SWITCH_X_SITE_AUX
1260 #endif
1261
1262 configure___ ld_switch_system=LD_SWITCH_SYSTEM
1263 configure___ ld_switch_machine=LD_SWITCH_MACHINE
1264
1265 #ifdef THIS_IS_CONFIGURE
1266
1267 /* Get the CFLAGS for tests in configure.  */
1268 #ifdef __GNUC__
1269 configure___ CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1270 #else
1271 configure___ CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1272 #endif
1273
1274 #else /* not THIS_IS_CONFIGURE */
1275
1276 /* Get the CFLAGS for real compilation.  */
1277 #ifdef __GNUC__
1278 configure___ REAL_CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1279 #else
1280 configure___ REAL_CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1281 #endif
1282
1283 #endif /* not THIS_IS_CONFIGURE */
1284 ' > ${tempcname}
1285
1286 # The value of CPP is a quoted variable reference, so we need to do this
1287 # to get its actual value...
1288 CPP=`eval "echo $CPP"`
1289 changequote(, )dnl
1290 eval `${CPP} -Isrc ${tempcname} \
1291        | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1292 if test "x$SPECIFIED_CFLAGS" = x; then
1293   eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \
1294          | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1295 else
1296   REAL_CFLAGS="$CFLAGS"
1297 fi
1298 changequote([, ])dnl
1299 rm ${tempcname}
1300
1301 ac_link="$ac_link $ld_switch_machine $ld_switch_system"
1302
1303 ### Make sure subsequent tests use flags consistent with the build flags.
1304
1305 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1306   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1307 else
1308   CPPFLAGS="$c_switch_system $c_switch_machine $CPPFLAGS"
1309 fi
1310
1311 dnl Do this early because it can frob feature test macros for Unix-98 &c.
1312 AC_SYS_LARGEFILE
1313
1314 # Sound support for GNU/Linux and the free BSDs.
1315 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h)
1316 # Emulation library used on NetBSD.
1317 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1318 AC_SUBST(LIBSOUND)
1319
1320 dnl checks for header files
1321 AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \
1322   linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \
1323   termcap.h stdio_ext.h fcntl.h term.h strings.h)
1324 AC_HEADER_STDC
1325 AC_HEADER_TIME
1326 AC_DECL_SYS_SIGLIST
1327 AC_HEADER_SYS_WAIT
1328
1329 dnl Some systems have utime.h but don't declare the struct anyplace.
1330 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1331 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1332 #include <sys/time.h>
1333 #include <time.h>
1334 #else
1335 #ifdef HAVE_SYS_TIME_H
1336 #include <sys/time.h>
1337 #else
1338 #include <time.h>
1339 #endif
1340 #endif
1341 #ifdef HAVE_UTIME_H
1342 #include <utime.h>
1343 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1344   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1345 if test $emacs_cv_struct_utimbuf = yes; then
1346   AC_DEFINE(HAVE_STRUCT_UTIMBUF)
1347 fi
1348
1349 dnl checks for typedefs
1350 AC_TYPE_SIGNAL
1351
1352 dnl Check for speed_t typedef.
1353 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1354 AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1355   emacs_cv_speed_t=yes))
1356 if test $emacs_cv_speed_t = yes; then
1357   AC_DEFINE(HAVE_SPEED_T)
1358 fi
1359
1360 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1361 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1362 #include <sys/time.h>
1363 #include <time.h>
1364 #else
1365 #ifdef HAVE_SYS_TIME_H
1366 #include <sys/time.h>
1367 #else
1368 #include <time.h>
1369 #endif
1370 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1371   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1372 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1373 if test $emacs_cv_struct_timeval = yes; then
1374   AC_DEFINE(HAVE_TIMEVAL)
1375 fi
1376
1377 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1378 AC_TRY_COMPILE([#include <math.h>],
1379 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1380   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1381 HAVE_EXCEPTION=$emacs_cv_struct_exception
1382 if test $emacs_cv_struct_exception != yes; then
1383   AC_DEFINE(NO_MATHERR)
1384 fi
1385
1386 dnl checks for structure members
1387 AC_STRUCT_TM
1388 AC_STRUCT_TIMEZONE
1389 AC_CACHE_CHECK(for tm_gmtoff in struct tm, emacs_cv_tm_gmtoff,
1390 AC_TRY_LINK([#include <time.h>], [struct tm t; t.tm_gmtoff = 0],
1391   emacs_cv_tm_gmtoff=yes,
1392   emacs_cv_tm_gmtoff=no))
1393 if test $emacs_cv_tm_gmtoff = yes; then
1394   AC_DEFINE(HAVE_TM_GMTOFF)
1395 fi
1396
1397 dnl checks for compiler characteristics
1398
1399 dnl Testing __STDC__ to determine prototype support isn't good enough.
1400 dnl DEC C, for instance, doesn't define it with default options, and
1401 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1402 dnl and void *.
1403 AC_C_PROTOTYPES
1404 AC_C_VOLATILE
1405 AC_C_CONST
1406 dnl This isn't useful because we can't turn on use of `inline' unless
1407 dnl the compiler groks `extern inline'.
1408 dnl AC_C_INLINE
1409 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1410   [AC_TRY_COMPILE(, [void * foo;],
1411                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1412 if test $emacs_cv_void_star = yes; then
1413   AC_DEFINE(POINTER_TYPE, void)
1414 else
1415   AC_DEFINE(POINTER_TYPE, char)
1416 fi
1417
1418 dnl check for Make feature
1419 AC_PROG_MAKE_SET
1420
1421 dnl checks for operating system services
1422 AC_SYS_LONG_FILE_NAMES
1423
1424 #### Choose a window system.
1425
1426 AC_PATH_X
1427 if test "$no_x" = yes; then
1428   window_system=none
1429 else
1430   window_system=x11
1431 fi
1432
1433 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1434   LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1435   LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1436   x_default_search_path=""
1437   for x_library in `echo ${x_libraries} | sed -e "s/:/ /g"`; do
1438     x_search_path="\
1439 ${x_library}/X11/%L/%T/%N%C%S:\
1440 ${x_library}/X11/%l/%T/%N%C%S:\
1441 ${x_library}/X11/%T/%N%C%S:\
1442 ${x_library}/X11/%L/%T/%N%S:\
1443 ${x_library}/X11/%l/%T/%N%S:\
1444 ${x_library}/X11/%T/%N%S"
1445     if test x"${x_default_search_path}" = x; then
1446       x_default_search_path=${x_search_path}
1447     else
1448       x_default_search_path="${x_search_path}:${x_default_search_path}"
1449     fi
1450   done
1451 fi
1452 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1453   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1454 fi
1455
1456 if test x"${x_includes}" = x; then
1457   bitmapdir=/usr/include/X11/bitmaps
1458 else
1459   # accumulate include directories that have X11 bitmap subdirectories
1460   bmd_acc="dummyval"
1461   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1462     if test -d "${bmd}/X11/bitmaps"; then
1463       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1464     fi
1465     if test -d "${bmd}/bitmaps"; then
1466       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1467     fi
1468   done
1469   if test ${bmd_acc} != "dummyval"; then
1470     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1471   fi
1472 fi
1473
1474 case "${window_system}" in
1475   x11 )
1476     HAVE_X_WINDOWS=yes
1477     HAVE_X11=yes
1478     case "${with_x_toolkit}" in
1479       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1480       motif ) USE_X_TOOLKIT=MOTIF ;;
1481 dnl      open-look ) USE_X_TOOLKIT=OPEN_LOOK ;;
1482       no ) USE_X_TOOLKIT=none ;;
1483 dnl If user did not say whether to use a toolkit,
1484 dnl make this decision later: use the toolkit if we have X11R5 or newer.
1485       * ) USE_X_TOOLKIT=maybe ;;
1486     esac
1487   ;;
1488   none )
1489     HAVE_X_WINDOWS=no
1490     HAVE_X11=no
1491     USE_X_TOOLKIT=none
1492   ;;
1493 esac
1494
1495 ### If we're using X11, we should use the X menu package.
1496 HAVE_MENUS=no
1497 case ${HAVE_X11} in
1498   yes ) HAVE_MENUS=yes ;;
1499 esac
1500
1501 if test "${opsys}" = "hpux9"; then
1502   case "${x_libraries}" in
1503     *X11R4* )
1504       opsysfile="s/hpux9-x11r4.h"
1505       ;;
1506   esac
1507 fi
1508
1509 if test "${opsys}" = "hpux9shr"; then
1510   case "${x_libraries}" in
1511     *X11R4* )
1512       opsysfile="s/hpux9shxr4.h"
1513       ;;
1514   esac
1515 fi
1516
1517 ### Compute the unexec source name from the object name.
1518 UNEXEC_SRC="`echo ${unexec} | sed 's/\.o/.c/'`"
1519
1520 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1521 # Assume not, until told otherwise.
1522 GNU_MALLOC=yes
1523 doug_lea_malloc=yes
1524 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1525 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1526 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1527                emacs_cv_var___after_morecore_hook,
1528 AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1529   emacs_cv_var___after_morecore_hook=yes,
1530   emacs_cv_var___after_morecore_hook=no))
1531 if test $emacs_cv_var___after_morecore_hook = no; then
1532   doug_lea_malloc=no
1533 fi
1534 if test "${system_malloc}" = "yes"; then
1535   GNU_MALLOC=no
1536   GNU_MALLOC_reason="
1537     (The GNU allocators don't work with this system configuration.)"
1538 fi
1539 if test "$doug_lea_malloc" = "yes" ; then
1540   if test "$GNU_MALLOC" = yes ; then
1541     GNU_MALLOC_reason="
1542       (Using Doug Lea's new malloc from the GNU C Library.)"
1543   fi
1544   AC_DEFINE(DOUG_LEA_MALLOC)
1545 fi
1546
1547 if test x"${REL_ALLOC}" = x; then
1548   REL_ALLOC=${GNU_MALLOC}
1549 fi
1550
1551 dnl For now, need to use an explicit `#define USE_MMAP_FOR_BUFFERS 1'
1552 dnl the system configuration file (s/*.h) to turn the use of mmap
1553 dnl in the relocating allocator on.
1554
1555 AC_FUNC_MMAP
1556 if test $use_mmap_for_buffers = yes; then
1557   REL_ALLOC=no
1558 fi
1559
1560 LIBS="$libsrc_libs $LIBS"
1561
1562 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1563 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1564 AC_CHECK_LIB(dnet, dnet_ntoa)
1565 dnl This causes -lresolv to get used in subsequent tests,
1566 dnl which causes failures on some systems such as HPUX 9.
1567 dnl AC_CHECK_LIB(resolv, gethostbyname)
1568
1569 dnl FIXME replace main with a function we actually want from this library.
1570 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1571
1572 AC_CHECK_LIB(pthreads, cma_open)
1573
1574 AC_MSG_CHECKING(for XFree86 in /usr/X386)
1575 if test -d /usr/X386/include; then
1576   HAVE_XFREE386=yes
1577   : ${C_SWITCH_X_SITE="-I/usr/X386/include"}
1578 else
1579   HAVE_XFREE386=no
1580 fi
1581 AC_MSG_RESULT($HAVE_XFREE386)
1582
1583 # Change CFLAGS temporarily so that C_SWITCH_X_SITE gets used
1584 # for the tests that follow.  We set it back to REAL_CFLAGS later on.
1585
1586 REAL_CPPFLAGS="$CPPFLAGS"
1587
1588 if test "${HAVE_X11}" = "yes"; then
1589   DEFS="$C_SWITCH_X_SITE $DEFS"
1590   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1591   LIBS="$LIBX $LIBS"
1592   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1593   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1594
1595   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1596   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1597   # but it's more convenient here to set LD_RUN_PATH
1598   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1599   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1600     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1601     export LD_RUN_PATH
1602   fi
1603
1604   if test "${opsys}" = "gnu-linux"; then
1605     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1606     AC_TRY_LINK([],
1607      [XOpenDisplay ("foo");],
1608      [xlinux_first_failure=no],
1609      [xlinux_first_failure=yes])
1610     if test "${xlinux_first_failure}" = "yes"; then
1611       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1612       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1613       OLD_CPPFLAGS="$CPPFLAGS"
1614       OLD_LIBS="$LIBS"
1615       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1616       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1617       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1618       LIBS="$LIBS -b i486-linuxaout"
1619       AC_TRY_LINK([],
1620        [XOpenDisplay ("foo");],
1621        [xlinux_second_failure=no],
1622        [xlinux_second_failure=yes])
1623       if test "${xlinux_second_failure}" = "yes"; then
1624         # If we get the same failure with -b, there is no use adding -b.
1625         # So take it out.  This plays safe.
1626         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1627         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1628         CPPFLAGS="$OLD_CPPFLAGS"
1629         LIBS="$OLD_LIBS"
1630         AC_MSG_RESULT(no)
1631       else
1632         AC_MSG_RESULT(yes)
1633       fi
1634     else
1635       AC_MSG_RESULT(no)
1636     fi
1637   fi
1638
1639   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1640   # header files included from there.
1641   AC_MSG_CHECKING(for Xkb)
1642   AC_TRY_LINK([#include <X11/Xlib.h>
1643 #include <X11/XKBlib.h>],
1644         [XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],
1645         emacs_xkb=yes, emacs_xkb=no)
1646   AC_MSG_RESULT($emacs_xkb)
1647   if test $emacs_xkb = yes; then
1648     AC_DEFINE(HAVE_XKBGETKEYBOARD)
1649   fi
1650
1651   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1652 XScreenNumberOfScreen XSetWMProtocols)
1653 fi
1654
1655 if test "${window_system}" = "x11"; then
1656   AC_MSG_CHECKING(X11 version 6)
1657   AC_CACHE_VAL(emacs_cv_x11_version_6,
1658   AC_TRY_LINK([#include <X11/Xlib.h>],
1659 [#if XlibSpecificationRelease < 6
1660 fail;
1661 #endif
1662 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no))
1663   if test $emacs_cv_x11_version_6 = yes; then
1664     AC_MSG_RESULT(6 or newer)
1665     AC_DEFINE(HAVE_X11R6)
1666   else
1667     AC_MSG_RESULT(before 6)
1668   fi
1669 fi
1670
1671 if test "${window_system}" = "x11"; then
1672   AC_MSG_CHECKING(X11 version 5)
1673   AC_CACHE_VAL(emacs_cv_x11_version_5,
1674   AC_TRY_LINK([#include <X11/Xlib.h>],
1675 [#if XlibSpecificationRelease < 5
1676 fail;
1677 #endif
1678 ], emacs_cv_x11_version_5=yes, emacs_cv_x11_version_5=no))
1679   if test $emacs_cv_x11_version_5 = yes; then
1680     AC_MSG_RESULT(5 or newer)
1681     HAVE_X11R5=yes
1682     AC_DEFINE(HAVE_X11R5)
1683   else
1684     HAVE_X11R5=no
1685     AC_MSG_RESULT(before 5)
1686   fi
1687 fi
1688
1689 dnl Do not put whitespace before the #include statements below.
1690 dnl Older compilers (eg sunos4 cc) choke on it.
1691 if test x"${USE_X_TOOLKIT}" = xmaybe; then
1692   if test x"${HAVE_X11R5}" = xyes; then
1693     AC_MSG_CHECKING(X11 version 5 with Xaw)
1694     AC_CACHE_VAL(emacs_cv_x11_version_5_with_xaw,
1695     AC_TRY_LINK([
1696 #include <X11/Intrinsic.h>
1697 #include <X11/Xaw/Simple.h>],
1698       [],
1699       emacs_cv_x11_version_5_with_xaw=yes,
1700       emacs_cv_x11_version_5_with_xaw=no))
1701     if test $emacs_cv_x11_version_5_with_xaw = yes; then
1702       AC_MSG_RESULT([5 or newer, with Xaw; use toolkit by default])
1703       USE_X_TOOLKIT=LUCID
1704     else
1705       AC_MSG_RESULT(before 5 or no Xaw; do not use toolkit by default)
1706       USE_X_TOOLKIT=none
1707     fi
1708   else
1709     USE_X_TOOLKIT=none
1710   fi
1711 fi
1712
1713 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
1714
1715 if test "${USE_X_TOOLKIT}" != "none"; then
1716   AC_MSG_CHECKING(X11 toolkit version)
1717   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
1718   AC_TRY_LINK([#include <X11/Intrinsic.h>],
1719 [#if XtSpecificationRelease < 6
1720 fail;
1721 #endif
1722 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no))
1723   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
1724   if test $emacs_cv_x11_toolkit_version_6 = yes; then
1725     AC_MSG_RESULT(6 or newer)
1726     AC_DEFINE(HAVE_X11XTR6)
1727   else
1728     AC_MSG_RESULT(before 6)
1729   fi
1730
1731 dnl If using toolkit, check whether libXmu.a exists.
1732 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
1733   OLDLIBS="$LIBS"
1734   if test x$HAVE_X11XTR6 = xyes; then
1735     LIBS="-lXt -lSM -lICE $LIBS"
1736   else
1737     LIBS="-lXt $LIBS"
1738   fi
1739   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
1740   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
1741 fi
1742
1743 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
1744 if test "${HAVE_X11}" = "yes"; then
1745   if test "${USE_X_TOOLKIT}" != "none"; then
1746     AC_CHECK_LIB(Xext, XShapeQueryExtension)
1747   fi
1748 fi
1749
1750 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1751   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
1752   AC_TRY_COMPILE([#include <Xm/Xm.h>],
1753     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
1754 int x = 5;
1755 #else
1756 Motif version prior to 2.1.
1757 #endif],
1758     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no))
1759   HAVE_MOTIF_2_1=$emacs_cv_motif_version_2_1
1760   if test $emacs_cv_motif_version_2_1 = yes; then
1761     HAVE_LIBXP=no
1762     AC_DEFINE(HAVE_MOTIF_2_1)
1763     AC_CHECK_LIB(Xp, XpCreateContext, HAVE_LIBXP=yes)
1764     if test ${HAVE_LIBXP} = yes; then
1765       AC_DEFINE(HAVE_LIBXP)
1766     fi
1767   fi
1768 fi
1769
1770 ### Is -lXaw3d available?
1771 HAVE_XAW3D=no
1772 if test "${HAVE_X11}" = "yes"; then
1773   if test "${USE_X_TOOLKIT}" != "none"; then
1774     AC_CHECK_HEADER(X11/Xaw3d/Scrollbar.h,
1775         AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb, HAVE_XAW3D=yes))
1776     if test "${HAVE_XAW3D}" = "yes"; then
1777         AC_DEFINE(HAVE_XAW3D)
1778     fi
1779   fi
1780 fi
1781
1782 dnl Use toolkit scroll bars if configured for X toolkit and either
1783 dnl using Motif or Xaw3d is available, and unless
1784 dnl --with-toolkit-scroll-bars=no was specified.
1785
1786 USE_TOOLKIT_SCROLL_BARS=no
1787 if test "${with_toolkit_scroll_bars}" != "no"; then
1788   if test "${USE_X_TOOLKIT}" != "none"; then
1789     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1790       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1791       HAVE_XAW3D=no
1792       USE_TOOLKIT_SCROLL_BARS=yes
1793     elif test "${HAVE_XAW3D}" = "yes"; then
1794       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1795       USE_TOOLKIT_SCROLL_BARS=yes
1796     fi
1797   fi
1798 fi
1799
1800 dnl Don't use X11 input methods if user specifies he doesn't want it
1801 dnl with `--with-xim=no'.
1802
1803 if test "${with_xim}" != "no"; then
1804   AC_DEFINE(USE_XIM)
1805 fi
1806
1807 ### Use -lXpm if available, unless `--with-xpm=no'.
1808 HAVE_XPM=no
1809 if test "${HAVE_X11}" = "yes"; then
1810   if test "${with_xpm}" != "no"; then
1811     AC_CHECK_HEADER(X11/xpm.h,
1812       AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11))
1813     if test "${HAVE_XPM}" = "yes"; then
1814       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
1815       AC_EGREP_CPP(no_return_alloc_pixels,
1816       [#include "X11/xpm.h"
1817 #ifndef XpmReturnAllocPixels
1818 no_return_alloc_pixels
1819 #endif
1820       ], HAVE_XPM=no, HAVE_XPM=yes)
1821
1822       if test "${HAVE_XPM}" = "yes"; then
1823         AC_MSG_RESULT(yes)
1824       else
1825         AC_MSG_RESULT(no)
1826       fi
1827     fi
1828   fi
1829
1830   if test "${HAVE_XPM}" = "yes"; then
1831     AC_DEFINE(HAVE_XPM)
1832   fi
1833 fi
1834
1835 ### Use -ljpeg if available, unless `--with-jpeg=no'.
1836 HAVE_JPEG=no
1837 if test "${HAVE_X11}" = "yes"; then
1838   if test "${with_jpeg}" != "no"; then
1839     dnl Checking for jpeglib.h can lose becsue of a redefinition of
1840     dnl  HAVE_STDLIB_H.
1841     AC_CHECK_HEADER(jerror.h,
1842       AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes))
1843   fi
1844
1845   if test "${HAVE_JPEG}" = "yes"; then
1846     AC_DEFINE(HAVE_JPEG)
1847   fi
1848 fi
1849
1850 ### Use -lpng if available, unless `--with-png=no'.
1851 HAVE_PNG=no
1852 if test "${HAVE_X11}" = "yes"; then
1853   if test "${with_png}" != "no"; then
1854     AC_CHECK_HEADER(png.h,
1855       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm))
1856   fi
1857
1858   if test "${HAVE_PNG}" = "yes"; then
1859     AC_DEFINE(HAVE_PNG)
1860   fi
1861 fi
1862
1863 ### Use -ltiff if available, unless `--with-tiff=no'.
1864 HAVE_TIFF=no
1865 if test "${HAVE_X11}" = "yes"; then
1866   if test "${with_tiff}" != "no"; then
1867     AC_CHECK_HEADER(tiffio.h,
1868       tifflibs="-lz -lm"
1869       # At least one tiff package requires the jpeg library.
1870       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
1871       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs))
1872   fi
1873
1874   if test "${HAVE_TIFF}" = "yes"; then
1875     AC_DEFINE(HAVE_TIFF)
1876   fi
1877 fi
1878
1879 ### Use -lgif if available, unless `--with-gif=no'.
1880 HAVE_GIF=no
1881 if test "${HAVE_X11}" = "yes"; then
1882   if test "${with_gif}" != "no"; then
1883     AC_CHECK_HEADER(gif_lib.h,
1884       AC_CHECK_LIB(ungif, DGifOpen, HAVE_GIF=yes))
1885   fi
1886
1887   if test "${HAVE_GIF}" = "yes"; then
1888     AC_DEFINE(HAVE_GIF)
1889   fi
1890 fi
1891
1892 # If netdb.h doesn't declare h_errno, we must declare it by hand.
1893 AC_CACHE_CHECK(whether netdb declares h_errno,
1894                emacs_cv_netdb_declares_h_errno,
1895 AC_TRY_LINK([#include <netdb.h>],
1896   [return h_errno;],
1897   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no))
1898 if test $emacs_cv_netdb_declares_h_errno = yes; then
1899   AC_DEFINE(HAVE_H_ERRNO)
1900 fi
1901
1902 AC_FUNC_ALLOCA
1903
1904 # fmod, logb, and frexp are found in -lm on most systems.
1905 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
1906 AC_CHECK_LIB(m, sqrt)
1907
1908 # Check for mail-locking functions in a "mail" library
1909 AC_CHECK_LIB(mail, maillock)
1910 dnl Debian, at least:
1911 dnl AC_CHECK_LIB(lockfile, maillock, [AC_DEFINE(HAVE_LIBMAIL)])
1912 AC_CHECK_LIB(lockfile, maillock)
1913 # If we have the shared liblockfile, assume we must use it for mail
1914 # locking (e.g. Debian).  If we couldn't link against liblockfile
1915 # (no liblockfile.a installed), ensure that we don't need to.
1916 if test "$ac_cv_lib_lockfile_maillock" = no; then
1917   dnl This works for files generally, not just executables.
1918   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
1919   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
1920                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
1921   if test $ac_cv_prog_liblockfile = yes; then
1922     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
1923 This probably means that movemail could lose mail.
1924 There may be a \`development' package to install containing liblockfile.])
1925   else AC_DEFINE(LIBMAIL, -llockfile)
1926   fi
1927   else :
1928 fi
1929 AC_CHECK_FUNCS(touchlock)
1930 AC_CHECK_HEADERS(maillock.h)
1931
1932 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
1933 rename closedir mkdir rmdir sysinfo \
1934 random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime res_init setsid \
1935 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
1936 utimes setrlimit setpgid getcwd getwd shutdown strftime getaddrinfo \
1937 __fpending mblen mbrlen strsignal setitimer ualarm index rindex \
1938 gai_strerror mkstemp)
1939
1940 AC_FUNC_MKTIME
1941 if test "$ac_cv_func_working_mktime" = no; then
1942   AC_DEFINE(BROKEN_MKTIME)
1943 fi
1944
1945 AC_FUNC_GETLOADAVG
1946
1947 AC_FUNC_FSEEKO
1948
1949 # UNIX98 PTYs.
1950 AC_CHECK_FUNCS(grantpt)
1951
1952 # PTY-related GNU extensions.
1953 AC_CHECK_FUNCS(getpt)
1954
1955 # Check this now, so that we will NOT find the above functions in ncurses.
1956 # That is because we have not set up to link ncurses in lib-src.
1957 # It's better to believe a function is not available
1958 # than to expect to find it in ncurses.
1959 AC_CHECK_LIB(ncurses, tparm)
1960
1961 # These tell us which Kerberos-related libraries to use.
1962 if test "${with_kerberos+set}" = set; then
1963   AC_CHECK_LIB(com_err, com_err)
1964   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt)
1965   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt)
1966   AC_CHECK_LIB(krb5, krb5_init_context)
1967   if test "${with_kerberos5+set}" != set; then
1968     AC_CHECK_LIB(des425, des_cbc_encrypt,,
1969                  AC_CHECK_LIB(des, des_cbc_encrypt))
1970     AC_CHECK_LIB(krb4, krb_get_cred,,
1971                  AC_CHECK_LIB(krb, krb_get_cred))
1972   fi
1973
1974   if test "${with_kerberos5+set}" = set; then
1975     AC_CHECK_HEADERS(krb5.h)
1976   else
1977     AC_CHECK_HEADERS(des.h,,
1978                      AC_CHECK_HEADERS(kerberosIV/des.h,,
1979                                       AC_CHECK_HEADERS(kerberos/des.h)))
1980     AC_CHECK_HEADERS(krb.h,,
1981                      AC_CHECK_HEADERS(kerberosIV/krb.h,,
1982                                       AC_CHECK_HEADERS(kerberos/krb.h)))
1983   fi
1984   AC_CHECK_HEADERS(com_err.h)
1985 fi
1986
1987 # Solaris requires -lintl if you want strerror (which calls dgettext)
1988 # to return localized messages.
1989 AC_CHECK_LIB(intl, dgettext)
1990
1991 AC_MSG_CHECKING(whether localtime caches TZ)
1992 AC_CACHE_VAL(emacs_cv_localtime_cache,
1993 [if test x$ac_cv_func_tzset = xyes; then
1994 AC_TRY_RUN([#include <time.h>
1995 extern char **environ;
1996 unset_TZ ()
1997 {
1998   char **from, **to;
1999   for (to = from = environ; (*to = *from); from++)
2000     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
2001       to++;
2002 }
2003 char TZ_GMT0[] = "TZ=GMT0";
2004 char TZ_PST8[] = "TZ=PST8";
2005 main()
2006 {
2007   time_t now = time ((time_t *) 0);
2008   int hour_GMT0, hour_unset;
2009   if (putenv (TZ_GMT0) != 0)
2010     exit (1);
2011   hour_GMT0 = localtime (&now)->tm_hour;
2012   unset_TZ ();
2013   hour_unset = localtime (&now)->tm_hour;
2014   if (putenv (TZ_PST8) != 0)
2015     exit (1);
2016   if (localtime (&now)->tm_hour == hour_GMT0)
2017     exit (1);
2018   unset_TZ ();
2019   if (localtime (&now)->tm_hour != hour_unset)
2020     exit (1);
2021   exit (0);
2022 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
2023 [# If we have tzset, assume the worst when cross-compiling.
2024 emacs_cv_localtime_cache=yes])
2025 else
2026         # If we lack tzset, report that localtime does not cache TZ,
2027         # since we can't invalidate the cache if we don't have tzset.
2028         emacs_cv_localtime_cache=no
2029 fi])dnl
2030 AC_MSG_RESULT($emacs_cv_localtime_cache)
2031 if test $emacs_cv_localtime_cache = yes; then
2032   AC_DEFINE(LOCALTIME_CACHE)
2033 fi
2034
2035 if test "x$HAVE_TIMEVAL" = xyes; then
2036   AC_CHECK_FUNCS(gettimeofday)
2037   AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
2038                  emacs_cv_gettimeofday_two_arguments,
2039   AC_TRY_COMPILE([
2040 #ifdef TIME_WITH_SYS_TIME
2041 #include <sys/time.h>
2042 #include <time.h>
2043 #else
2044 #ifdef HAVE_SYS_TIME_H
2045 #include <sys/time.h>
2046 #else
2047 #include <time.h>
2048 #endif
2049 #endif],
2050     [struct timeval time;
2051      gettimeofday (&time, 0);],
2052     emacs_cv_gettimeofday_two_arguments=yes,
2053     emacs_cv_gettimeofday_two_arguments=no))
2054   if test $emacs_cv_gettimeofday_two_arguments = no; then
2055     AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT)
2056   fi
2057 fi
2058
2059 dnl Note that AC_STRUCT_TIMEZONE doesn't do what you might expect.
2060 if test "$ac_cv_func_gettimeofday" = yes; then
2061   AC_CACHE_CHECK([for struct timezone], emacs_cv_struct_timezone,
2062     [AC_TRY_COMPILE([#include <sys/time.h>],
2063     [struct timezone tz;],
2064     dnl It may be that we can't call gettimeofday with a non-null pointer,
2065     dnl even though we have struct timezone (e.g. HPUX).  In that case
2066     dnl we'll lie about struct timezone.
2067     [AC_TRY_RUN([
2068 #ifdef TIME_WITH_SYS_TIME
2069 #include <sys/time.h>
2070 #include <time.h>
2071 #else
2072 #ifdef HAVE_SYS_TIME_H
2073 #include <sys/time.h>
2074 #else
2075 #include <time.h>
2076 #endif
2077 #endif
2078 main () {
2079   struct timeval time;
2080   struct timezone dummy;
2081   exit (gettimeofday (&time, &dummy));
2082 }],
2083       emacs_cv_struct_timezone=yes,
2084       emacs_cv_struct_timezone=no, emacs_cv_struct_timezone=yes)],
2085     emacs_cv_struct_timezone=no)])
2086 fi
2087
2088 ok_so_far=yes
2089 AC_CHECK_FUNC(socket, , ok_so_far=no)
2090 if test $ok_so_far = yes; then
2091   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
2092 fi
2093 if test $ok_so_far = yes; then
2094   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
2095 fi
2096 if test $ok_so_far = yes; then
2097   AC_DEFINE(HAVE_INET_SOCKETS)
2098 fi
2099
2100 if test -f /usr/lpp/X11/bin/smt.exp; then
2101   AC_DEFINE(HAVE_AIX_SMT_EXP)
2102 fi
2103
2104 AC_MSG_CHECKING(whether system supports dynamic ptys)
2105 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
2106   AC_MSG_RESULT(yes)
2107   AC_DEFINE(HAVE_DEV_PTMX)
2108 else
2109   AC_MSG_RESULT(no)
2110 fi
2111
2112 AC_FUNC_VFORK
2113
2114 # Fixme: This should be replaced when we have autoconf 2.14.
2115 AC_SIZE_T
2116
2117 # Set up the CFLAGS for real compilation, so we can substitute it.
2118 CFLAGS="$REAL_CFLAGS"
2119 CPPFLAGS="$REAL_CPPFLAGS"
2120
2121 changequote(, )dnl
2122 #### Find out which version of Emacs this is.
2123 version=`grep 'defconst[         ]*emacs-version' ${srcdir}/lisp/version.el \
2124          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
2125 changequote([, ])dnl
2126 if test x"${version}" = x; then
2127   AC_MSG_ERROR(can't find current emacs version in \`${srcdir}/lisp/version.el'.)
2128 fi
2129
2130 ### Specify what sort of things we'll be editing into Makefile and config.h.
2131 ### Use configuration here uncanonicalized to avoid exceeding size limits.
2132 AC_SUBST(version)
2133 AC_SUBST(configuration)
2134 AC_SUBST(canonical)
2135 AC_SUBST(srcdir)
2136 AC_SUBST(prefix)
2137 AC_SUBST(exec_prefix)
2138 AC_SUBST(bindir)
2139 AC_SUBST(datadir)
2140 AC_SUBST(sharedstatedir)
2141 AC_SUBST(libexecdir)
2142 AC_SUBST(mandir)
2143 AC_SUBST(infodir)
2144 AC_SUBST(lispdir)
2145 AC_SUBST(locallisppath)
2146 AC_SUBST(lisppath)
2147 AC_SUBST(x_default_search_path)
2148 AC_SUBST(etcdir)
2149 AC_SUBST(archlibdir)
2150 AC_SUBST(docdir)
2151 AC_SUBST(bitmapdir)
2152 AC_SUBST(c_switch_system)
2153 AC_SUBST(c_switch_machine)
2154 AC_SUBST(LD_SWITCH_X_SITE)
2155 AC_SUBST(LD_SWITCH_X_SITE_AUX)
2156 AC_SUBST(C_SWITCH_X_SITE)
2157 AC_SUBST(CFLAGS)
2158 AC_SUBST(X_TOOLKIT_TYPE)
2159 AC_SUBST(machfile)
2160 AC_SUBST(opsysfile)
2161 AC_SUBST(GETLOADAVG_LIBS)
2162
2163 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}")
2164 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}")
2165 AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}")
2166 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}")
2167 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE, ${LD_SWITCH_X_SITE})
2168 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE_AUX, ${LD_SWITCH_X_SITE_AUX})
2169 AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C_SWITCH_X_SITE})
2170 AC_DEFINE_UNQUOTED(UNEXEC_SRC,       ${UNEXEC_SRC})
2171
2172 if test "${HAVE_X_WINDOWS}" = "yes" ; then
2173   AC_DEFINE(HAVE_X_WINDOWS)
2174 fi
2175 if test "${USE_X_TOOLKIT}" != "none" ; then
2176   AC_DEFINE(USE_X_TOOLKIT)
2177 fi
2178 if test "${HAVE_X11}" = "yes" ; then
2179   AC_DEFINE(HAVE_X11)
2180 fi
2181 if test "${HAVE_XFREE386}" = "yes" ; then
2182   AC_DEFINE(HAVE_XFREE386)
2183 fi
2184 if test "${HAVE_MENUS}" = "yes" ; then
2185   AC_DEFINE(HAVE_MENUS)
2186 fi
2187 if test "${GNU_MALLOC}" = "yes" ; then
2188   AC_DEFINE(GNU_MALLOC)
2189 fi
2190 if test "${REL_ALLOC}" = "yes" ; then
2191   AC_DEFINE(REL_ALLOC)
2192 fi
2193
2194 #### Report on what we decided to do.
2195 echo "
2196 Configured for \`${canonical}'.
2197
2198   Where should the build process find the source code?    ${srcdir}
2199   What operating system and machine description files should Emacs use?
2200         \`${opsysfile}' and \`${machfile}'
2201   What compiler should emacs be built with?               ${CC} ${CFLAGS}
2202   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
2203   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
2204   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
2205   What window system should Emacs use?                    ${window_system}
2206   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
2207
2208 if test -n "${x_includes}"; then
2209 echo "  Where do we find X Windows header files?                ${x_includes}"
2210 else
2211 echo "  Where do we find X Windows header files?                Standard dirs"
2212 fi
2213 if test -n "${x_libraries}"; then
2214 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
2215 else
2216 echo "  Where do we find X Windows libraries?                   Standard dirs"
2217 fi
2218
2219 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
2220 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
2221 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
2222 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
2223 echo "  Does Emacs use -lungif?                                 ${HAVE_GIF}"
2224 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
2225 echo "  Does Emacs use X toolkit scroll bars?                   ${USE_TOOLKIT_SCROLL_BARS}"
2226 echo
2227
2228 # Remove any trailing slashes in these variables.
2229 changequote(, )dnl
2230 test "${prefix}" != NONE &&
2231   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
2232 test "${exec_prefix}" != NONE &&
2233   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`
2234 changequote([, ])dnl
2235
2236 ## Check if the C preprocessor will convert `..' to `. .'.  If so, set
2237 ## CPP_NEED_TRADITIONAL to `yes' so that the code to generate Makefile
2238 ## from Makefile.c can correctly provide the arg `-traditional' to the
2239 ## C preprocessor.
2240
2241 AC_EGREP_CPP(yes..yes,
2242         [yes..yes],
2243         CPP_NEED_TRADITIONAL=no,
2244         CPP_NEED_TRADITIONAL=yes)
2245
2246 AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \
2247         man/Makefile lwlib/Makefile src/Makefile.c:src/Makefile.in \
2248         lisp/Makefile leim/Makefile, [
2249
2250 ### Make the necessary directories, if they don't exist.
2251 for dir in etc lisp ; do
2252   test -d ${dir} || mkdir ${dir}
2253 done
2254
2255 # Build src/Makefile from ${srcdir}/src/Makefile.c
2256 # and lib-src/Makefile from ${srcdir}/lib-src/Makefile.c
2257 # This must be done after src/config.h is built, since we rely on that file.
2258
2259 changequote(, )dnl The horror, the horror.
2260 # Now get this: Some word that is part of the ${srcdir} directory name
2261 # or the ${configuration} value might, just might, happen to be an
2262 # identifier like `sun4' or `i386' or something, and be predefined by
2263 # the C preprocessor to some helpful value like 1, or maybe the empty
2264 # string.  Needless to say consequent macro substitutions are less
2265 # than conducive to the makefile finding the correct directory.
2266 undefs="`echo $top_srcdir $configuration $canonical |
2267 sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
2268     -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g' \
2269 `"
2270 changequote([, ])dnl
2271
2272 echo creating src/epaths.h
2273 make epaths-force
2274
2275 # As of 2000-11-19, newest development versions of GNU cpp preprocess
2276 # `..' to `. .'  unless invoked with -traditional
2277
2278 if test "x$GCC" = xyes && test "x$CPP_NEED_TRADITIONAL" = xyes; then
2279   CPPFLAGS="$CPPFLAGS -traditional"
2280 fi
2281
2282 echo creating lib-src/Makefile
2283 ( cd lib-src
2284   rm -f junk.c junk1.c junk2.c
2285   sed -e '/start of cpp stuff/q' \
2286       < Makefile.c > junk1.c
2287   sed -e '1,/start of cpp stuff/d'\
2288       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
2289       < Makefile.c > junk.c
2290   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
2291       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
2292   cat junk1.c junk2.c > Makefile.new
2293   rm -f junk.c junk1.c junk2.c
2294   chmod 444 Makefile.new
2295   mv -f Makefile.new Makefile
2296 )
2297
2298 echo creating src/Makefile
2299 ( cd src
2300   rm -f junk.c junk1.c junk2.c
2301   sed -e '/start of cpp stuff/q' \
2302       < Makefile.c > junk1.c
2303   sed -e '1,/start of cpp stuff/d'\
2304       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
2305       < Makefile.c > junk.c
2306   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
2307       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
2308   cat junk1.c junk2.c > Makefile.new
2309   rm -f junk.c junk1.c junk2.c
2310   chmod 444 Makefile.new
2311   mv -f Makefile.new Makefile
2312 )
2313
2314 if test ! -f src/.gdbinit && test -f $top_srcdir/src/.gdbinit; then
2315   echo creating src/.gdbinit
2316   echo source $top_srcdir/src/.gdbinit > src/.gdbinit
2317 fi
2318
2319 # This is how we know whether to re-run configure in certain cases.
2320 touch src/config.stamp
2321
2322 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPP_NEED_TRADITIONAL="$CPP_NEED_TRADITIONAL" CPPFLAGS="$CPPFLAGS"])
2323