configure.in

   1 dnl This is an autoconf script.
   2 dnl To rebuild the `configure' script from this, execute the command
   3 dnl     autoconf
   4 dnl in the directory containing this script.
   5 AC_PREREQ(2.4.1)dnl
   6 AC_INIT(src/lisp.h)
   7 AC_CONFIG_HEADER(src/config.h:src/config.in)
   8
   9 lispdir='${datadir}/emacs/${version}/lisp'
  10 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  11 '${datadir}/emacs/site-lisp'
  12 lisppath='${locallisppath}:${lispdir}'
  13 etcdir='${datadir}/emacs/${version}/etc'
  14 lockdir='${sharedstatedir}/emacs/lock'
  15 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  16 docdir='${datadir}/emacs/${version}/etc'
  17
  18 AC_ARG_WITH(gcc,
  19 [  --with-gcc              use GCC to compile Emacs])
  20 AC_ARG_WITH(pop,
  21 [  --with-pop              support POP for mail retrieval],
  22 [AC_DEFINE(MAIL_USE_POP)])
  23 AC_ARG_WITH(kerberos,
  24 [  --with-kerberos         support Kerberos-authenticated POP],
  25 [AC_DEFINE(KERBEROS)])
  26 AC_ARG_WITH(hesiod,
  27 [  --with-hesiod           support Hesiod to get the POP server host],
  28 [AC_DEFINE(HESIOD)])
  29 dnl This should be the last --with option, because --with-x is
  30 dnl added later on when we find the path of X, and it's best to
  31 dnl keep them together visually.
  32 AC_ARG_WITH(x-toolkit,
  33 [  --with-x-toolkit=KIT    use an X toolkit (KIT = yes/lucid/athena/motif)],
  34 [         case "${withval}" in
  35             y | ye | yes )      val=athena ;;
  36             n | no )            val=no  ;;
  37             l | lu | luc | luci | lucid )       val=lucid ;;
  38             a | at | ath | athe | athen | athena )      val=athena ;;
  39             m | mo | mot | moti | motif )       val=motif ;;
  40 dnl These don't currently work.
  41 dnl         o | op | ope | open | open- | open-l | open-lo \
  42 dnl             | open-loo | open-look )        val=open-look ;;
  43             * )
  44 dnl AC_MSG_ERROR([the \`--with-x-toolkit' option is supposed to have a value
  45 dnl which is \`yes', \`no', \`lucid', \`athena', \`motif' or \`open-look'.])
  46 AC_MSG_ERROR([\`--with-x-toolkit=$withval' is invalid\;
  47 this option's value should be \`yes', \`no', \`lucid', \`athena', or \`motif'.
  48 Currently, \`yes', \`athena' and \`lucid' are synonyms.])
  49             ;;
  50           esac
  51           with_x_toolkit=$val
  52 ])
  53
  54 #### Make srcdir absolute, if it isn't already.  It's important to
  55 #### avoid running the path through pwd unnecessary, since pwd can
  56 #### give you automounter prefixes, which can go away.  We do all this
  57 #### so Emacs can find its files when run uninstalled.
  58 case "${srcdir}" in
  59   /* ) ;;
  60   . )
  61     ## We may be able to use the $PWD environment variable to make this
  62     ## absolute.  But sometimes PWD is inaccurate.
  63     ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
  64     CDPATH=
  65     if test "${PWD}" != "" && test "`(cd ${PWD} ; sh -c pwd)`" = "`pwd`"  ;
  66     then
  67       srcdir="$PWD"
  68     else
  69       srcdir="`(cd ${srcdir}; pwd)`"
  70     fi
  71   ;;
  72   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
  73 esac
  74
  75 #### Check if the source directory already has a configured system in it.
  76 if test `pwd` != `(cd ${srcdir} && pwd)` \
  77    && test -f "${srcdir}/src/config.h" ; then
  78   AC_MSG_WARN([The directory tree \`${srcdir}' is being used
  79    as a build directory right now; it has been configured in its own
  80    right.  To configure in another directory as well, you MUST
  81    use GNU make.  If you do not have GNU make, then you must
  82    now do \`make distclean' in ${srcdir},
  83    and then run $0 again.])
  84
  85 changequote(, )dnl
  86   extrasub='/^VPATH[     ]*=/c\
  87 changequote([, ])dnl
  88 vpath %.c $(srcdir)\
  89 vpath %.h $(srcdir)\
  90 vpath %.y $(srcdir)\
  91 vpath %.l $(srcdir)\
  92 vpath %.s $(srcdir)\
  93 vpath %.in $(srcdir)'
  94 fi
  95
  96 #### Given the configuration name, set machfile and opsysfile to the
  97 #### names of the m/*.h and s/*.h files we should use.
  98
  99 ### Canonicalize the configuration name.
 100
 101 AC_CANONICAL_HOST
 102 canonical=$host
 103 configuration=$host_alias
 104
 105 changequote(, )dnl
 106
 107 ### If you add support for a new configuration, add code to this
 108 ### switch statement to recognize your configuration name and select
 109 ### the appropriate operating system and machine description files.
 110
 111 ### You would hope that you could choose an m/*.h file pretty much
 112 ### based on the machine portion of the configuration name, and an s-
 113 ### file based on the operating system portion.  However, it turns out
 114 ### that each m/*.h file is pretty manufacturer-specific - for
 115 ### example, apollo.h, hp9000s300.h, mega68k, news.h, and tad68k are
 116 ### all 68000 machines; mips.h, pmax.h, and news-risc are all MIPS
 117 ### machines.  So we basically have to have a special case for each
 118 ### configuration name.
 119 ###
 120 ### As far as handling version numbers on operating systems is
 121 ### concerned, make sure things will fail in a fixable way.  If
 122 ### /etc/MACHINES doesn't say anything about version numbers, be
 123 ### prepared to handle anything reasonably.  If version numbers
 124 ### matter, be sure /etc/MACHINES says something about it.
 125 ###
 126 ### Eric Raymond says we should accept strings like "sysvr4" to mean
 127 ### "System V Release 4"; he writes, "The old convention encouraged
 128 ### confusion between `system' and `release' levels'."
 129
 130 machine='' opsys='' unported=no
 131 case "${canonical}" in
 132
 133   ## NetBSD ports
 134   *-*-netbsd* )
 135     opsys=netbsd
 136     case "${canonical}" in
 137       i[345]86-*-netbsd*) machine=intel386 ;;
 138       m68k-*-netbsd*)
 139                         # This is somewhat bogus.
 140                         machine=hp9000s300 ;;
 141       mips-*-netbsd*)   machine=pmax ;;
 142       ns32k-*-netbsd*)  machine=ns32000 ;;
 143       sparc-*-netbsd*)  machine=sparc ;;
 144     esac
 145   ;;
 146
 147   ## Acorn RISCiX:
 148   arm-acorn-riscix1.1* )
 149     machine=acorn opsys=riscix1-1
 150   ;;
 151   arm-acorn-riscix1.2* | arm-acorn-riscix )
 152     machine=acorn opsys=riscix1-2
 153   ;;
 154
 155   ## Alliant machines
 156   ## Strictly speaking, we need the version of the alliant operating
 157   ## system to choose the right machine file, but currently the
 158   ## configuration name doesn't tell us enough to choose the right
 159   ## one; we need to give alliants their own operating system name to
 160   ## do this right.  When someone cares, they can help us.
 161   fx80-alliant-* )
 162     machine=alliant4 opsys=bsd4-2
 163   ;;
 164   i860-alliant-* )
 165     machine=alliant-2800 opsys=bsd4-3
 166   ;;
 167
 168   ## Alpha (DEC) machines.
 169   alpha-dec-osf* )
 170     machine=alpha opsys=osf1
 171   ;;
 172
 173   alpha-*-linux* )
 174     machine=alpha opsys=linux
 175   ;;
 176
 177   ## Altos 3068
 178   m68*-altos-sysv* )
 179     machine=altos opsys=usg5-2
 180   ;;
 181
 182   ## Amdahl UTS
 183   580-amdahl-sysv* )
 184     machine=amdahl opsys=usg5-2-2
 185   ;;
 186
 187   ## Apollo, Domain/OS
 188   m68*-apollo-* )
 189     machine=apollo opsys=bsd4-3
 190   ;;
 191
 192   ## AT&T 3b2, 3b5, 3b15, 3b20
 193   we32k-att-sysv* )
 194     machine=att3b opsys=usg5-2-2
 195   ;;
 196
 197   ## AT&T 3b1 - The Mighty Unix PC!
 198   m68*-att-sysv* )
 199     machine=7300 opsys=usg5-2-2
 200   ;;
 201
 202   ## Bull dpx20
 203   rs6000-bull-bosx* )
 204     machine=ibmrs6000 opsys=aix3-2
 205   ;;
 206
 207   ## Bull dpx2
 208   m68*-bull-sysv3* )
 209     machine=dpx2 opsys=usg5-3
 210   ;;
 211
 212   ## Bull sps7
 213   m68*-bull-sysv2* )
 214     machine=sps7 opsys=usg5-2
 215   ;;
 216
 217   ## CCI 5/32, 6/32 -- see "Tahoe".
 218
 219   ## Celerity
 220   ## I don't know what configuration name to use for this; config.sub
 221   ## doesn't seem to know anything about it.  Hey, Celerity users, get
 222   ## in touch with us!
 223   celerity-celerity-bsd* )
 224     machine=celerity opsys=bsd4-2
 225   ;;
 226
 227   ## Clipper
 228   ## What operating systems does this chip run that Emacs has been
 229   ## tested on?
 230   clipper-* )
 231     machine=clipper
 232     ## We'll use the catch-all code at the bottom to guess the
 233     ## operating system.
 234   ;;
 235
 236   ## Convex
 237   *-convex-bsd* | *-convex-convexos* )
 238     machine=convex opsys=bsd4-3
 239     ## Prevents spurious white space in makefiles - d.m.cooke@larc.nasa.gov
 240     NON_GNU_CPP="cc -E -P"
 241   ;;
 242
 243   ## Cubix QBx/386
 244   i[345]86-cubix-sysv* )
 245     machine=intel386 opsys=usg5-3
 246   ;;
 247
 248   ## Cydra 5
 249   cydra*-cydrome-sysv* )
 250     machine=cydra5 opsys=usg5-3
 251   ;;
 252
 253   ## Data General AViiON Machines
 254   m88k-dg-dgux5.4R3* | m88k-dg-dgux5.4.3* )
 255     machine=aviion opsys=dgux5-4r3
 256   ;;
 257   m88k-dg-dgux5.4R2* | m88k-dg-dgux5.4.2* )
 258     machine=aviion opsys=dgux5-4r2
 259   ;;
 260   m88k-dg-dgux* )
 261     machine=aviion opsys=dgux
 262   ;;
 263
 264   ## DECstations
 265   mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0* | mips-dec-bsd4.2* )
 266     machine=pmax opsys=bsd4-2
 267   ;;
 268   mips-dec-ultrix4.[12]* | mips-dec-bsd* )
 269     machine=pmax opsys=bsd4-3
 270   ;;
 271   mips-dec-ultrix* )
 272     machine=pmax opsys=ultrix4-3
 273   ;;
 274   mips-dec-osf* )
 275     machine=pmax opsys=osf1
 276   ;;
 277   mips-dec-mach_bsd4.3* )
 278     machine=pmax opsys=mach-bsd4-3
 279   ;;
 280
 281   ## Motorola Delta machines
 282   m68k-motorola-sysv* | m68000-motorola-sysv* )
 283     machine=delta opsys=usg5-3
 284     if test -z "`type gnucc | grep 'not found'`"
 285     then
 286       if test -s /etc/167config
 287       then CC="gnucc -m68040"
 288       else CC="gnucc -m68881"
 289       fi
 290     else
 291       if test -z "`type gcc | grep 'not found'`"
 292       then CC=gcc
 293       else CC=cc
 294       fi
 295     fi
 296   ;;
 297   m88k-motorola-sysv4* )
 298     # jbotte@bnr.ca says that UNIX_System_V <hostName> 4.0 R40V4.3 m88k mc88110
 299     # needs POSIX_SIGNALS and therefore needs usg5-4-2.
 300     # I hope there are not other 4.0 versions for this machine
 301     # which really need usg5-4 instead.
 302     machine=delta88k opsys=usg5-4-2
 303   ;;
 304   m88k-motorola-sysv* | m88k-motorola-m88kbcs* )
 305     machine=delta88k opsys=usg5-3
 306   ;;
 307
 308   ## Dual machines
 309   m68*-dual-sysv* )
 310     machine=dual opsys=usg5-2
 311   ;;
 312   m68*-dual-uniplus* )
 313     machine=dual opsys=unipl5-2
 314   ;;
 315
 316   ## Elxsi 6400
 317   elxsi-elxsi-sysv* )
 318     machine=elxsi opsys=usg5-2
 319   ;;
 320
 321   ## Encore machines
 322   ns16k-encore-bsd* )
 323     machine=ns16000 opsys=umax
 324   ;;
 325
 326   ## The GEC 93 - apparently, this port isn't really finished yet.
 327
 328   ## Gould Power Node and NP1
 329   pn-gould-bsd4.2* )
 330     machine=gould opsys=bsd4-2
 331   ;;
 332   pn-gould-bsd4.3* )
 333     machine=gould opsys=bsd4-3
 334   ;;
 335   np1-gould-bsd* )
 336     machine=gould-np1 opsys=bsd4-3
 337   ;;
 338
 339   ## Harris Night Hawk machines running CX/UX (a 5000 looks just like a 4000
 340   ## as far as Emacs is concerned).
 341   m88k-harris-cxux* )
 342     # Build needs to be different on 7.0 and later releases
 343     case "`uname -r`" in
 344        [56].[0-9] ) machine=nh4000 opsys=cxux ;;
 345        [7].[0-9] ) machine=nh4000 opsys=cxux7 ;;
 346     esac
 347     NON_GNU_CPP="/lib/cpp"
 348   ;;
 349   ## Harris ecx or gcx running CX/UX (Series 1200, Series 3000)
 350   m68k-harris-cxux* )
 351     machine=nh3000 opsys=cxux
 352   ;;
 353   ## Harris power pc NightHawk running Power UNIX (Series 6000)
 354   powerpc-harris-powerunix )
 355     machine=nh6000 opsys=powerunix
 356     NON_GNU_CPP="cc -Xo -E -P"
 357   ;;
 358
 359   ## Honeywell XPS100
 360   xps*-honeywell-sysv* )
 361     machine=xps100 opsys=usg5-2
 362   ;;
 363
 364   ## HP 9000 series 200 or 300
 365   m68*-hp-bsd* )
 366     machine=hp9000s300 opsys=bsd4-3
 367   ;;
 368   ## HP/UX 7, 8, 9, and 10 are supported on these machines.
 369   m68*-hp-hpux* )
 370     case "`uname -r`" in
 371       ## Someone's system reports A.B8.05 for this.
 372       ## I wonder what other possibilities there are.
 373       *.B8.* ) machine=hp9000s300 opsys=hpux8 ;;
 374       *.08.* ) machine=hp9000s300 opsys=hpux8 ;;
 375       *.09.* ) machine=hp9000s300 opsys=hpux9 ;;
 376       *.10.* ) machine=hp9000s300 opsys=hpux9shr ;;
 377       *) machine=hp9000s300 opsys=hpux ;;
 378     esac
 379   ;;
 380
 381   ## HP 9000 series 700 and 800, running HP/UX
 382   hppa*-hp-hpux7* )
 383     machine=hp800 opsys=hpux
 384   ;;
 385   hppa*-hp-hpux8* )
 386     machine=hp800 opsys=hpux8
 387   ;;
 388   hppa*-hp-hpux9shr* )
 389     machine=hp800 opsys=hpux9shr
 390   ;;
 391   hppa*-hp-hpux9* )
 392     machine=hp800 opsys=hpux9
 393   ;;
 394   hppa*-hp-hpux10* )
 395     machine=hp800 opsys=hpux10
 396   ;;
 397
 398   ## HP 9000 series 700 and 800, running HP/UX
 399   hppa*-hp-hpux* )
 400     ## Cross-compilation?  Nah!
 401     case "`uname -r`" in
 402       ## Someone's system reports A.B8.05 for this.
 403       ## I wonder what other possibilities there are.
 404       *.B8.* ) machine=hp800 opsys=hpux8 ;;
 405       *.08.* ) machine=hp800 opsys=hpux8 ;;
 406       *.09.* ) machine=hp800 opsys=hpux9 ;;
 407       *) machine=hp800 opsys=hpux ;;
 408     esac
 409   ;;
 410   hppa-*-nextstep* )
 411     machine=hp800 opsys=nextstep
 412   ;;
 413
 414   ## Orion machines
 415   orion-orion-bsd* )
 416     machine=orion opsys=bsd4-2
 417   ;;
 418   clipper-orion-bsd* )
 419     machine=orion105 opsys=bsd4-2
 420   ;;
 421
 422   ## IBM machines
 423   i[345]86-ibm-aix1.1* )
 424     machine=ibmps2-aix opsys=usg5-2-2
 425   ;;
 426   i[345]86-ibm-aix1.[23]* | i[345]86-ibm-aix* )
 427     machine=ibmps2-aix opsys=usg5-3
 428   ;;
 429   i370-ibm-aix*)
 430     machine=ibm370aix opsys=usg5-3
 431   ;;
 432   rs6000-ibm-aix3.1* | powerpc-ibm-aix3.1*  )
 433     machine=ibmrs6000 opsys=aix3-1
 434   ;;
 435   rs6000-ibm-aix3.2.5 | powerpc-ibm-aix3.2.5 )
 436     machine=ibmrs6000 opsys=aix3-2-5
 437   ;;
 438   rs6000-ibm-aix4.1* | powerpc-ibm-aix4.1*  )
 439     machine=ibmrs6000 opsys=aix4-1
 440   ;;
 441   rs6000-ibm-aix4* | powerpc-ibm-aix4*  )
 442     machine=ibmrs6000 opsys=aix4
 443   ;;
 444   rs6000-ibm-aix* | powerpc-ibm-aix* )
 445     machine=ibmrs6000 opsys=aix3-2
 446   ;;
 447   romp-ibm-bsd4.3* )
 448     machine=ibmrt opsys=bsd4-3
 449   ;;
 450   romp-ibm-bsd4.2* )
 451     machine=ibmrt opsys=bsd4-2
 452   ;;
 453   romp-ibm-aos4.3* )
 454     machine=ibmrt opsys=bsd4-3
 455   ;;
 456   romp-ibm-aos4.2* )
 457     machine=ibmrt opsys=bsd4-2
 458   ;;
 459   romp-ibm-aos* )
 460     machine=ibmrt opsys=bsd4-3
 461   ;;
 462   romp-ibm-bsd* )
 463     machine=ibmrt opsys=bsd4-3
 464   ;;
 465   romp-ibm-aix* )
 466     machine=ibmrt-aix opsys=usg5-2-2
 467   ;;
 468
 469   ## Integrated Solutions `Optimum V'
 470   m68*-isi-bsd4.2* )
 471     machine=isi-ov opsys=bsd4-2
 472   ;;
 473   m68*-isi-bsd4.3* )
 474     machine=isi-ov opsys=bsd4-3
 475   ;;
 476
 477   ## Intel 386 machines where we do care about the manufacturer
 478   i[345]86-intsys-sysv* )
 479     machine=is386 opsys=usg5-2-2
 480   ;;
 481
 482   ## Prime EXL
 483   i[345]86-prime-sysv* )
 484     machine=i386 opsys=usg5-3
 485   ;;
 486
 487   ## Sequent Symmetry running Dynix
 488   i[345]86-sequent-bsd* )
 489     machine=symmetry opsys=bsd4-3
 490   ;;
 491
 492   ## Sequent Symmetry running DYNIX/ptx
 493   ## Use the old cpp rather than the newer ANSI one.
 494   i[345]86-sequent-ptx* )
 495     machine=sequent-ptx opsys=ptx
 496     NON_GNU_CPP="/lib/cpp"
 497   ;;
 498
 499   ## Unspecified sysv on an ncr machine defaults to svr4.2.
 500   ## (Plain usg5-4 doesn't turn on POSIX signals, which we need.)
 501   i[345]86-ncr-sysv* )
 502     machine=ncr386 opsys=usg5-4-2
 503   ;;
 504
 505   ## Intel Paragon OSF/1
 506   i860-intel-osf1* )
 507     machine=paragon opsys=osf1 NON_GNU_CPP=/usr/mach/lib/cpp
 508   ;;
 509
 510   ## Intel 860
 511   i860-*-sysv4* )
 512     machine=i860 opsys=usg5-4
 513     NON_GNU_CC="/bin/cc" # Ie, not the one in /usr/ucb/cc.
 514     NON_GNU_CPP="/usr/ccs/lib/cpp" # cc -E tokenizes macro expansion.
 515   ;;
 516
 517   ## Masscomp machines
 518   m68*-masscomp-rtu* )
 519     machine=masscomp opsys=rtu
 520   ;;
 521
 522   ## Megatest machines
 523   m68*-megatest-bsd* )
 524     machine=mega68 opsys=bsd4-2
 525   ;;
 526
 527   ## Workstations sold by MIPS
 528   ## This is not necessarily all workstations using the MIPS processor -
 529   ## Irises are produced by SGI, and DECstations by DEC.
 530
 531   ## etc/MACHINES lists mips.h and mips4.h as possible machine files,
 532   ## and usg5-2-2 and bsd4-3 as possible OS files.  The only guidance
 533   ## it gives for choosing between the alternatives seems to be "Use
 534   ## -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
 535   ## the BSD world."  I'll assume that these are instructions for
 536   ## handling two odd situations, and that every other situation
 537   ## should use mips.h and usg5-2-2, they being listed first.
 538   mips-mips-usg* )
 539     machine=mips4
 540     ## Fall through to the general code at the bottom to decide on the OS.
 541   ;;
 542   mips-mips-riscos4* )
 543     machine=mips4 opsys=bsd4-3
 544     NON_GNU_CC="cc -systype bsd43"
 545     NON_GNU_CPP="cc -systype bsd43 -E"
 546   ;;
 547   mips-mips-riscos5* )
 548     machine=mips4 opsys=riscos5
 549     NON_GNU_CC="cc -systype bsd43"
 550     NON_GNU_CPP="cc -systype bsd43 -E"
 551   ;;
 552   mips-mips-bsd* )
 553     machine=mips opsys=bsd4-3
 554   ;;
 555   mips-mips-* )
 556     machine=mips opsys=usg5-2-2
 557   ;;
 558
 559   ## NeXT
 560   m68*-next-* | m68k-*-nextstep* )
 561     machine=m68k opsys=nextstep
 562   ;;
 563
 564   ## The complete machine from National Semiconductor
 565   ns32k-ns-genix* )
 566     machine=ns32000 opsys=usg5-2
 567   ;;
 568
 569   ## NCR machines
 570   m68*-ncr-sysv2* | m68*-ncr-sysvr2* )
 571     machine=tower32 opsys=usg5-2-2
 572   ;;
 573   m68*-ncr-sysv3* | m68*-ncr-sysvr3* )
 574     machine=tower32v3 opsys=usg5-3
 575   ;;
 576
 577   ## Nixdorf Targon 31
 578   m68*-nixdorf-sysv* )
 579     machine=targon31 opsys=usg5-2-2
 580   ;;
 581
 582   ## Nu (TI or LMI)
 583   m68*-nu-sysv* )
 584     machine=nu opsys=usg5-2
 585   ;;
 586
 587   ## Plexus
 588   m68*-plexus-sysv* )
 589     machine=plexus opsys=usg5-2
 590   ;;
 591
 592   ## Pyramid machines
 593   ## I don't really have any idea what sort of processor the Pyramid has,
 594   ## so I'm assuming it is its own architecture.
 595   pyramid-pyramid-bsd* )
 596     machine=pyramid opsys=bsd4-2
 597   ;;
 598
 599   ## Sequent Balance
 600   ns32k-sequent-bsd4.2* )
 601     machine=sequent opsys=bsd4-2
 602   ;;
 603   ns32k-sequent-bsd4.3* )
 604     machine=sequent opsys=bsd4-3
 605   ;;
 606
 607   ## Siemens Nixdorf
 608   mips-siemens-sysv* | mips-sni-sysv*)
 609     machine=mips-siemens opsys=usg5-4
 610     NON_GNU_CC=/usr/ccs/bin/cc
 611     NON_GNU_CPP=/usr/ccs/lib/cpp
 612   ;;
 613
 614   ## Silicon Graphics machines
 615   ## Iris 2500 and Iris 2500 Turbo (aka the Iris 3030)
 616   m68*-sgi-iris3.5* )
 617     machine=irist opsys=iris3-5
 618   ;;
 619   m68*-sgi-iris3.6* | m68*-sgi-iris*)
 620     machine=irist opsys=iris3-6
 621   ;;
 622   ## Iris 4D
 623   mips-sgi-irix3* )
 624     machine=iris4d opsys=irix3-3
 625   ;;
 626   mips-sgi-irix4* )
 627     machine=iris4d opsys=irix4-0
 628   ;;
 629   mips-sgi-irix6* )
 630     machine=iris4d opsys=irix6-0  NON_GNU_CPP=/lib/cpp
 631   ;;
 632   mips-sgi-irix5.[01]* )
 633     machine=iris4d opsys=irix5-0
 634   ;;
 635   mips-sgi-irix5* | mips-sgi-irix* )
 636     machine=iris4d opsys=irix5-2
 637   ;;
 638
 639   ## SONY machines
 640   m68*-sony-bsd4.2* )
 641     machine=news opsys=bsd4-2
 642   ;;
 643   m68*-sony-bsd4.3* )
 644     machine=news opsys=bsd4-3
 645   ;;
 646   m68*-sony-newsos3* | m68*-sony-news3*)
 647     machine=news opsys=bsd4-3
 648   ;;
 649   mips-sony-bsd* | mips-sony-newsos4* | mips-sony-news4*)
 650     machine=news-risc opsys=bsd4-3
 651   ;;
 652   mips-sony-news* )
 653     machine=news-risc opsys=newsos5
 654   ;;
 655
 656   ## Stride
 657   m68*-stride-sysv* )
 658     machine=stride opsys=usg5-2
 659   ;;
 660
 661   ## Suns
 662   *-sun-sunos* | *-sun-bsd* | *-sun-solaris* \
 663     | i[345]86-*-solaris2* | i[345]86-*-sunos5* | powerpc*-*-solaris2* \
 664     | rs6000-*-solaris2*)
 665     case "${canonical}" in
 666       m68*-sunos1* )    machine=sun1 ;;
 667       m68*-sunos2* )    machine=sun2 ;;
 668       m68* )            machine=sun3 ;;
 669       i[345]86-sun-sunos[34]* ) machine=sun386 ;;
 670       i[345]86-*-* )     machine=intel386 ;;
 671       powerpc* | rs6000* )  machine=rs6000 ;;
 672       sparc* )          machine=sparc ;;
 673       * )               unported=yes ;;
 674     esac
 675     case "${canonical}" in
 676       ## The Sun386 didn't get past 4.0.
 677       i[345]86-*-sunos4   ) opsys=sunos4-0 ;;
 678       *-sunos4.0*         ) opsys=sunos4-0 ;;
 679       *-sunos4.1.[3-9]* | *-sunos4shr*)
 680                 opsys=sunos4shr
 681                 NON_GNU_CPP=/usr/lib/cpp
 682                 ;;
 683       *-sunos4.1.[3-9]*-noshare )
 684                 opsys=sunos4-1-3
 685                 NON_GNU_CPP=/usr/lib/cpp
 686                 NON_GCC_TEST_OPTIONS=-Bstatic
 687                 GCC_TEST_OPTIONS=-static
 688                 ;;
 689       *-sunos4* | *-sunos )
 690                 opsys=sunos4-1
 691                 NON_GCC_TEST_OPTIONS=-Bstatic
 692                 GCC_TEST_OPTIONS=-static
 693                 ;;
 694       *-sunos5.3* | *-solaris2.3* )
 695                 opsys=sol2-3
 696                 NON_GNU_CPP=/usr/ccs/lib/cpp
 697                 ;;
 698       *-sunos5.4* | *-solaris2.4* )
 699                 opsys=sol2-4
 700                 NON_GNU_CPP=/usr/ccs/lib/cpp
 701                 RANLIB="ar -ts"
 702                 ;;
 703       *-sunos5.5* | *-solaris2.5* )
 704                 opsys=sol2-5
 705                 NON_GNU_CPP=/usr/ccs/lib/cpp
 706                 RANLIB="ar -ts"
 707                 ;;
 708       *-sunos5* | *-solaris* )
 709                 opsys=sol2-4
 710                 NON_GNU_CPP=/usr/ccs/lib/cpp
 711                 ;;
 712       *                   ) opsys=bsd4-2   ;;
 713     esac
 714   ;;
 715   sparc-*-nextstep* )
 716     machine=sparc opsys=nextstep
 717   ;;
 718
 719   ## Tadpole 68k
 720   m68*-tadpole-sysv* )
 721     machine=tad68k opsys=usg5-3
 722   ;;
 723
 724   ## Tahoe machines
 725   tahoe-tahoe-bsd4.2* )
 726     machine=tahoe opsys=bsd4-2
 727   ;;
 728   tahoe-tahoe-bsd4.3* )
 729     machine=tahoe opsys=bsd4-3
 730   ;;
 731
 732   ## Tandem Integrity S2
 733   mips-tandem-sysv* )
 734     machine=tandem-s2 opsys=usg5-3
 735   ;;
 736
 737   ## Tektronix XD88
 738   m88k-tektronix-sysv3* )
 739   machine=tekxd88 opsys=usg5-3
 740   ;;
 741
 742   ## Tektronix 16000 box (6130?)
 743   ns16k-tektronix-bsd* )
 744     machine=ns16000 opsys=bsd4-2
 745   ;;
 746   ## Tektronix 4300
 747   ## src/m/tek4300.h hints that this is a m68k machine.
 748   m68*-tektronix-bsd* )
 749     machine=tek4300 opsys=bsd4-3
 750   ;;
 751
 752   ## Titan P2 or P3
 753   ## We seem to have lost the machine-description file titan.h!
 754   titan-titan-sysv* )
 755     machine=titan opsys=usg5-3
 756   ;;
 757
 758   ## Ustation E30 (SS5E)
 759   m68*-unisys-uniplus* )
 760     machine=ustation opsystem=unipl5-2
 761   ;;
 762
 763   ## Vaxen.
 764   vax-dec-* )
 765     machine=vax
 766     case "${canonical}" in
 767       *-bsd4.1* )                                       opsys=bsd4-1 ;;
 768       *-bsd4.2* | *-ultrix[0-3].* | *-ultrix4.0* )      opsys=bsd4-2 ;;
 769       *-bsd4.3* | *-ultrix* )                           opsys=bsd4-3 ;;
 770       *-sysv[01]* | *-sysvr[01]* )                      opsys=usg5-0 ;;
 771       *-sysv2* | *-sysvr2* )                            opsys=usg5-2 ;;
 772       *-vms* )                                          opsys=vms ;;
 773       * )                                               unported=yes
 774     esac
 775   ;;
 776
 777   ## Whitechapel MG1
 778   ns16k-whitechapel-* )
 779     machine=mg1
 780     ## We don't know what sort of OS runs on these; we'll let the
 781     ## operating system guessing code below try.
 782   ;;
 783
 784   ## Wicat
 785   m68*-wicat-sysv* )
 786     machine=wicat opsys=usg5-2
 787   ;;
 788
 789   ## Intel 386 machines where we don't care about the manufacturer
 790   i[345]86-*-* )
 791     machine=intel386
 792     case "${canonical}" in
 793       *-isc1.* | *-isc2.[01]* ) opsys=386-ix ;;
 794       *-isc2.2* )               opsys=isc2-2 ;;
 795       *-isc4.0* )               opsys=isc4-0 ;;
 796       *-isc4.* )                opsys=isc4-1
 797                                 GCC_TEST_OPTIONS=-posix
 798                                 NON_GCC_TEST_OPTIONS=-Xp
 799                                 ;;
 800       *-isc* )                  opsys=isc3-0 ;;
 801       *-esix5* )                opsys=esix5r4; NON_GNU_CPP=/usr/lib/cpp ;;
 802       *-esix* )                 opsys=esix ;;
 803       *-xenix* )                opsys=xenix ;;
 804       *-linux* )                opsys=linux ;;
 805       *-sco3.2v4* )             opsys=sco4 ; NON_GNU_CPP=/lib/cpp  ;;
 806       *-bsd386* | *-bsdi1* )    opsys=bsd386 ;;
 807       *-bsdi2* )                opsys=bsdos2 ;;
 808       *-386bsd* )               opsys=386bsd ;;
 809       *-freebsd* )              opsys=freebsd ;;
 810       *-nextstep* )             opsys=nextstep ;;
 811       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 812     esac
 813   ;;
 814
 815   ## Linux/68k
 816   m68k-*-linux* )
 817     machine=m68k opsys=linux
 818   ;;
 819
 820   * )
 821     unported=yes
 822   ;;
 823 esac
 824
 825 ### If the code above didn't choose an operating system, just choose
 826 ### an operating system based on the configuration name.  You really
 827 ### only want to use this when you have no idea what the right
 828 ### operating system is; if you know what operating systems a machine
 829 ### runs, it's cleaner to make it explicit in the case statement
 830 ### above.
 831 if test x"${opsys}" = x; then
 832   case "${canonical}" in
 833     *-gnu* )                            opsys=gnu ;;
 834     *-bsd4.[01] )                       opsys=bsd4-1 ;;
 835     *-bsd4.2 )                          opsys=bsd4-2 ;;
 836     *-bsd4.3 )                          opsys=bsd4-3 ;;
 837     *-sysv0 | *-sysvr0 )                opsys=usg5-0 ;;
 838     *-sysv2 | *-sysvr2 )                opsys=usg5-2 ;;
 839     *-sysv2.2 | *-sysvr2.2 )            opsys=usg5-2-2 ;;
 840     *-sysv3* | *-sysvr3* )              opsys=usg5-3 ;;
 841     *-sysv4.1* | *-sysvr4.1* )
 842         NON_GNU_CPP=/usr/lib/cpp
 843         opsys=usg5-4 ;;
 844     *-sysv4.[2-9]* | *-sysvr4.[2-9]* )
 845         if [ x$NON_GNU_CPP = x ]; then
 846           NON_GNU_CPP=/usr/ccs/lib/cpp
 847         fi
 848         opsys=usg5-4-2 ;;
 849     *-sysv4* | *-sysvr4* )              opsys=usg5-4 ;;
 850     * )
 851       unported=yes
 852     ;;
 853   esac
 854 fi
 855
 856 if test "x$RANLIB" = x; then
 857   RANLIB=ranlib
 858 fi
 859
 860 changequote([, ])dnl
 861
 862 if test $unported = yes; then
 863   AC_MSG_ERROR([Emacs hasn't been ported to \`${canonical}' systems.
 864 Check \`etc/MACHINES' for recognized configuration names.])
 865 fi
 866
 867 machfile="m/${machine}.h"
 868 opsysfile="s/${opsys}.h"
 869
 870
 871 #### Choose a compiler.
 872 test -n "$CC" && cc_specified=yes
 873
 874 # Save the value of CFLAGS that the user specified.
 875 SPECIFIED_CFLAGS="$CFLAGS"
 876
 877 case ${with_gcc} in
 878   "yes" ) CC="gcc" GCC=yes ;;
 879   "no"  ) : ${CC=cc} ;;
 880   * ) AC_PROG_CC
 881 esac
 882
 883 # On Suns, sometimes $CPP names a directory.
 884 if test -n "$CPP" && test -d "$CPP"; then
 885   CPP=
 886 fi
 887
 888 #### Some systems specify a CPP to use unless we are using GCC.
 889 #### Now that we know whether we are using GCC, we can decide whether
 890 #### to use that one.
 891 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
 892 then
 893   CPP="$NON_GNU_CPP"
 894 fi
 895
 896 #### Some systems specify a CC to use unless we are using GCC.
 897 #### Now that we know whether we are using GCC, we can decide whether
 898 #### to use that one.
 899 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
 900   test x$cc_specified != xyes
 901 then
 902   CC="$NON_GNU_CC"
 903 fi
 904
 905 if test x$GCC = xyes && test "x$GCC_TEST_OPTIONS" != x
 906 then
 907   CC="$CC $GCC_TEST_OPTIONS"
 908 fi
 909
 910 if test x$GCC = x && test "x$NON_GCC_TEST_OPTIONS" != x
 911 then
 912   CC="$CC $NON_GCC_TEST_OPTIONS"
 913 fi
 914
 915 #### Some other nice autoconf tests.  If you add a test here which
 916 #### should make an entry in src/config.h, don't forget to add an
 917 #### #undef clause to src/config.h.in for autoconf to modify.
 918
 919 dnl checks for programs
 920 AC_PROG_LN_S
 921 AC_PROG_CPP
 922 AC_PROG_INSTALL
 923 AC_PROG_YACC
 924
 925 dnl checks for Unix variants
 926 AC_AIX
 927
 928 dnl checks for header files
 929 AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h)
 930 AC_HEADER_STDC
 931 AC_HEADER_TIME
 932 AC_DECL_SYS_SIGLIST
 933
 934 dnl Some systems have utime.h but don't declare the struct anyplace.
 935 AC_MSG_CHECKING(for struct utimbuf)
 936 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
 937 #include <sys/time.h>
 938 #include <time.h>
 939 #else
 940 #ifdef HAVE_SYS_TIME_H
 941 #include <sys/time.h>
 942 #else
 943 #include <time.h>
 944 #endif
 945 #endif
 946 #ifdef HAVE_UTIME_H
 947 #include <utime.h>
 948 #endif], [static struct utimbuf x; x.actime = x.modtime;],
 949   [AC_MSG_RESULT(yes)
 950    AC_DEFINE(HAVE_STRUCT_UTIMBUF)],
 951   AC_MSG_RESULT(no))
 952
 953 dnl checks for typedefs
 954 AC_TYPE_SIGNAL
 955
 956 AC_MSG_CHECKING(for struct timeval)
 957 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
 958 #include <sys/time.h>
 959 #include <time.h>
 960 #else
 961 #ifdef HAVE_SYS_TIME_H
 962 #include <sys/time.h>
 963 #else
 964 #include <time.h>
 965 #endif
 966 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
 967   [AC_MSG_RESULT(yes)
 968    HAVE_TIMEVAL=yes
 969    AC_DEFINE(HAVE_TIMEVAL)],
 970   AC_MSG_RESULT(no))
 971
 972 dnl checks for structure members
 973 AC_STRUCT_TM
 974 AC_STRUCT_TIMEZONE
 975
 976 dnl checks for compiler characteristics
 977 AC_C_CONST
 978
 979 dnl check for Make feature
 980 AC_PROG_MAKE_SET
 981
 982 dnl checks for operating system services
 983 AC_SYS_LONG_FILE_NAMES
 984
 985 #### Choose a window system.
 986
 987 AC_PATH_X
 988 if test "$no_x" = yes; then
 989   window_system=none
 990 else
 991   window_system=x11
 992 fi
 993
 994 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
 995   LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
 996   LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
 997 fi
 998 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
 999   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1000 fi
1001
1002 if test x"${x_includes}" = x; then
1003   bitmapdir=/usr/include/X11/bitmaps
1004 else
1005   # accumulate include directories that have X11 bitmap subdirectories
1006   bmd_acc="dummyval"
1007   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1008     if test -d "${bmd}/X11/bitmaps"; then
1009       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1010     elif test -d "${bmd}/bitmaps"; then
1011       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1012     fi
1013   done
1014   if test ${bmd_acc} != "dummyval"; then
1015     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1016   fi
1017 fi
1018
1019 case "${window_system}" in
1020   x11 )
1021     HAVE_X_WINDOWS=yes
1022     HAVE_X11=yes
1023     case "${with_x_toolkit}" in
1024       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1025       motif ) USE_X_TOOLKIT=MOTIF ;;
1026 dnl      open-look ) USE_X_TOOLKIT=OPEN_LOOK ;;
1027       no ) USE_X_TOOLKIT=none ;;
1028 dnl If user did not say whether to use a toolkit,
1029 dnl make this decision later: use the toolkit if we have X11R5 or newer.
1030       * ) USE_X_TOOLKIT=maybe ;;
1031     esac
1032   ;;
1033   none )
1034     HAVE_X_WINDOWS=no
1035     HAVE_X11=no
1036     USE_X_TOOLKIT=none
1037   ;;
1038 esac
1039
1040 ### If we're using X11, we should use the X menu package.
1041 HAVE_MENUS=no
1042 case ${HAVE_X11} in
1043   yes ) HAVE_MENUS=yes ;;
1044 esac
1045
1046 if test "${opsys}" = "hpux9"; then
1047   case "${x_libraries}" in
1048     *X11R4* )
1049       opsysfile="s/hpux9-x11r4.h"
1050       ;;
1051   esac
1052 fi
1053
1054 if test "${opsys}" = "hpux9shr"; then
1055   case "${x_libraries}" in
1056     *X11R4* )
1057       opsysfile="s/hpux9shxr4.h"
1058       ;;
1059   esac
1060 fi
1061
1062 #### Extract some information from the operating system and machine files.
1063
1064 AC_CHECKING([the machine- and system-dependent files to find out
1065  - which libraries the lib-src programs will want, and
1066  - whether the GNU malloc routines are usable])
1067
1068 ### First figure out CFLAGS (which we use for running the compiler here)
1069 ### and REAL_CFLAGS (which we use for real compilation).
1070 ### The two are the same except on a few systems, where they are made
1071 ### different to work around various lossages.  For example,
1072 ### GCC 2.5 on Linux needs them to be different because it treats -g
1073 ### as implying static linking.
1074
1075 ### If the CFLAGS env var is specified, we use that value
1076 ### instead of the default.
1077
1078 ### It's not important that this name contain the PID; you can't run
1079 ### two configures in the same directory and have anything work
1080 ### anyway.
1081 tempcname="conftest.c"
1082
1083 echo '
1084 #include "'${srcdir}'/src/'${opsysfile}'"
1085 #include "'${srcdir}'/src/'${machfile}'"
1086 #ifndef LIBS_MACHINE
1087 #define LIBS_MACHINE
1088 #endif
1089 #ifndef LIBS_SYSTEM
1090 #define LIBS_SYSTEM
1091 #endif
1092 #ifndef C_SWITCH_SYSTEM
1093 #define C_SWITCH_SYSTEM
1094 #endif
1095 #ifndef C_SWITCH_MACHINE
1096 #define C_SWITCH_MACHINE
1097 #endif
1098 configure___ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
1099 configure___ c_switch_system=C_SWITCH_SYSTEM
1100 configure___ c_switch_machine=C_SWITCH_MACHINE
1101
1102 #ifndef LIB_X11_LIB
1103 #define LIB_X11_LIB -lX11
1104 #endif
1105
1106 #ifndef LIBX11_MACHINE
1107 #define LIBX11_MACHINE
1108 #endif
1109
1110 #ifndef LIBX11_SYSTEM
1111 #define LIBX11_SYSTEM
1112 #endif
1113 configure___ LIBX=LIB_X11_LIB LIBX11_MACHINE LIBX11_SYSTEM
1114
1115 #ifdef UNEXEC
1116 configure___ unexec=UNEXEC
1117 #else
1118 configure___ unexec=unexec.o
1119 #endif
1120
1121 #ifdef SYSTEM_MALLOC
1122 configure___ system_malloc=yes
1123 #else
1124 configure___ system_malloc=no
1125 #endif
1126
1127 #ifndef C_DEBUG_SWITCH
1128 #define C_DEBUG_SWITCH -g
1129 #endif
1130
1131 #ifndef C_OPTIMIZE_SWITCH
1132 #define C_OPTIMIZE_SWITCH -O
1133 #endif
1134
1135 #ifdef THIS_IS_CONFIGURE
1136
1137 /* Get the CFLAGS for tests in configure.  */
1138 #ifdef __GNUC__
1139 configure___ CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1140 #else
1141 configure___ CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1142 #endif
1143
1144 #else /* not THIS_IS_CONFIGURE */
1145
1146 /* Get the CFLAGS for real compilation.  */
1147 #ifdef __GNUC__
1148 configure___ REAL_CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
1149 #else
1150 configure___ REAL_CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
1151 #endif
1152
1153 #endif /* not THIS_IS_CONFIGURE */
1154 ' > ${tempcname}
1155
1156 # The value of CPP is a quoted variable reference, so we need to do this
1157 # to get its actual value...
1158 CPP=`eval "echo $CPP"`
1159 changequote(, )dnl
1160 eval `${CPP} -Isrc ${tempcname} \
1161        | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1162 if test "x$SPECIFIED_CFLAGS" = x; then
1163   eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \
1164          | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
1165 else
1166   REAL_CFLAGS="$CFLAGS"
1167 fi
1168 changequote([, ])dnl
1169 rm ${tempcname}
1170
1171 ### Compute the unexec source name from the object name.
1172 UNEXEC_SRC="`echo ${unexec} | sed 's/\.o/.c/'`"
1173
1174 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1175 # Assume not, until told otherwise.
1176 GNU_MALLOC=yes
1177 if test "${system_malloc}" = "yes"; then
1178   GNU_MALLOC=no
1179   GNU_MALLOC_reason="
1180   (The GNU allocators don't work with this system configuration.)"
1181 fi
1182
1183 if test x"${REL_ALLOC}" = x; then
1184   REL_ALLOC=${GNU_MALLOC}
1185 fi
1186
1187 LISP_FLOAT_TYPE=yes
1188
1189
1190 #### Add the libraries to LIBS and check for some functions.
1191
1192 CPPFLAGS="$c_switch_system $c_switch_machine $CPPFLAGS"
1193 LIBS="$libsrc_libs $LIBS"
1194
1195 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1196 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1197 AC_CHECK_LIB(dnet, dnet_ntoa)
1198 dnl This causes -lresolv to get used in subsequent tests,
1199 dnl which causes failures on some systems such as HPUX 9.
1200 dnl AC_CHECK_LIB(resolv, gethostbyname)
1201
1202 dnl FIXME replace main with a function we actually want from this library.
1203 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1204
1205 AC_CHECK_LIB(pthreads, cma_open)
1206
1207 AC_MSG_CHECKING(for XFree86)
1208 if test -d /usr/X386/include; then
1209   HAVE_XFREE386=yes
1210   : ${C_SWITCH_X_SITE="-I/usr/X386/include"}
1211 else
1212   HAVE_XFREE386=no
1213 fi
1214 AC_MSG_RESULT($HAVE_XFREE386)
1215
1216 # Change CFLAGS temporarily so that C_SWITCH_X_SITE gets used
1217 # for the tests that follow.  We set it back to REAL_CFLAGS later on.
1218
1219 if test "${HAVE_X11}" = "yes"; then
1220   DEFS="$C_SWITCH_X_SITE $DEFS"
1221   LIBS="$LD_SWITCH_X_SITE $LIBX $LIBS"
1222   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1223
1224   if test "${opsys}" = "linux"; then
1225     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1226     AC_TRY_LINK([],
1227      [XOpenDisplay ("foo");],
1228      [xlinux_first_failure=no],
1229      [xlinux_first_failure=yes])
1230     if test "${xlinux_first_failure}" = "yes"; then
1231       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1232       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1233       OLD_CPPFLAGS="$CPPFLAGS"
1234       OLD_LIBS="$LIBS"
1235       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1236       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1237       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1238       LIBS="$LIBS -b i486-linuxaout"
1239       AC_TRY_LINK([],
1240        [XOpenDisplay ("foo");],
1241        [xlinux_second_failure=no],
1242        [xlinux_second_failure=yes])
1243       if test "${xlinux_second_failure}" = "yes"; then
1244         # If we get the same failure with -b, there is no use adding -b.
1245         # So take it out.  This plays safe.
1246         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1247         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1248         CPPFLAGS="$OLD_CPPFLAGS"
1249         LIBS="$OLD_LIBS"
1250         AC_MSG_RESULT(no)
1251       else
1252         AC_MSG_RESULT(yes)
1253       fi
1254     else
1255       AC_MSG_RESULT(no)
1256     fi
1257   fi
1258
1259   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1260 XScreenNumberOfScreen XSetWMProtocols)
1261   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
1262 fi
1263
1264 if test "${window_system}" = "x11"; then
1265   AC_MSG_CHECKING(X11 version 6)
1266   AC_TRY_LINK([#include <X11/Xlib.h>],
1267 [#if XlibSpecificationRelease < 6
1268 fail;
1269 #endif
1270 ], [AC_MSG_RESULT(6)
1271     AC_DEFINE(HAVE_X11R6)],
1272    [AC_MSG_RESULT(not 6)])
1273 fi
1274
1275 if test x"${USE_X_TOOLKIT}" = xmaybe; then
1276   AC_MSG_CHECKING(X11 version 5)
1277   AC_TRY_LINK([#include <X11/Xlib.h>],
1278 [#if XlibSpecificationRelease < 5
1279 fail;
1280 #endif
1281 ], [AC_MSG_RESULT(5, use toolkit)
1282     USE_X_TOOLKIT=LUCID
1283     AC_DEFINE(HAVE_X11R5)],
1284    [AC_MSG_RESULT(not 5, do not use toolkit)
1285     USE_X_TOOLKIT=none])
1286 fi
1287
1288 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
1289
1290 if test "${USE_X_TOOLKIT}" != "none"; then
1291   AC_MSG_CHECKING(X11 toolkit version)
1292   AC_TRY_LINK([#include <X11/Intrinsic.h>],
1293 [#if XtSpecificationRelease < 6
1294 fail;
1295 #endif
1296 ], [AC_MSG_RESULT(6)
1297     AC_DEFINE(HAVE_X11XTR6)],
1298    [AC_MSG_RESULT(not 6)])
1299 fi
1300
1301 # If netdb.h doesn't declare h_errno, we must declare it by hand.
1302 AC_MSG_CHECKING(whether netdb declares h_errno)
1303 AC_TRY_LINK([#include <netdb.h>],
1304   [return h_errno;],
1305   [AC_MSG_RESULT(yes)
1306    AC_DEFINE(HAVE_H_ERRNO)],
1307   [AC_MSG_RESULT(no)])
1308
1309 AC_FUNC_ALLOCA
1310
1311 # fmod, logb, and frexp are found in -lm on most systems.
1312 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
1313 AC_CHECK_LIB(m, sqrt(0.0) + t)
1314 AC_CHECK_FUNCS(gettimeofday gethostname dup2 rename closedir mkdir rmdir \
1315 random lrand48 bcopy bcmp logb frexp fmod ftime res_init setsid \
1316 strerror fpathconf select mktime eaccess getpagesize tzset)
1317
1318 AC_MSG_CHECKING(whether localtime caches TZ)
1319 AC_CACHE_VAL(emacs_cv_localtime_cache,
1320 [if test $ac_cv_func_tzset = yes; then
1321 AC_TRY_RUN([#include <time.h>
1322 #if STDC_HEADERS
1323 # include <stdlib.h>
1324 #endif
1325 main()
1326 {
1327   time_t now = time ((time_t *) 0);
1328   int hour;
1329   if (putenv ("TZ=GMT0") != 0)
1330     exit (1);
1331   hour = localtime (&now)->tm_hour;
1332   if (putenv ("TZ=PST8") != 0)
1333     exit (1);
1334   exit (localtime (&now)->tm_hour == hour);
1335 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
1336 [# If we have tzset, assume the worst when cross-compiling.
1337 emacs_cv_localtime_cache=yes])
1338 else
1339         # If we lack tzset, report that localtime does not cache TZ,
1340         # since we can't invalidate the cache if we don't have tzset.
1341         emacs_cv_localtime_cache=no
1342 fi])dnl
1343 AC_MSG_RESULT($emacs_cv_localtime_cache)
1344 if test $emacs_cv_localtime_cache = yes; then
1345   AC_DEFINE(LOCALTIME_CACHE)
1346 fi
1347
1348 if test "x$HAVE_TIMEVAL" = xyes; then
1349 AC_MSG_CHECKING(whether gettimeofday can't accept two arguments)
1350 AC_TRY_LINK([
1351 #ifdef TIME_WITH_SYS_TIME
1352 #include <sys/time.h>
1353 #include <time.h>
1354 #else
1355 #ifdef HAVE_SYS_TIME_H
1356 #include <sys/time.h>
1357 #else
1358 #include <time.h>
1359 #endif
1360 #endif
1361   ],
1362   [
1363   struct timeval time;
1364   struct timezone dummy;
1365   gettimeofday (&time, &dummy);
1366 ],
1367   [AC_MSG_RESULT(no)],
1368   [AC_MSG_RESULT(yes)
1369    AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT)])
1370 fi
1371
1372 ok_so_far=yes
1373 AC_CHECK_FUNC(socket, , ok_so_far=no)
1374 if test $ok_so_far = yes; then
1375   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
1376 fi
1377 if test $ok_so_far = yes; then
1378   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
1379 fi
1380 if test $ok_so_far = yes; then
1381   AC_DEFINE(HAVE_INET_SOCKETS)
1382 fi
1383
1384 if test -f /usr/lpp/X11/bin/smt.exp; then
1385   AC_DEFINE(HAVE_AIX_SMT_EXP)
1386 fi
1387
1388 # Set up the CFLAGS for real compilation, so we can substitute it.
1389 CFLAGS="$REAL_CFLAGS"
1390
1391 changequote(, )dnl
1392 #### Find out which version of Emacs this is.
1393 version=`grep 'defconst[         ]*emacs-version' ${srcdir}/lisp/version.el \
1394          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
1395 changequote([, ])dnl
1396 if test x"${version}" = x; then
1397   AC_MSG_ERROR(can't find current emacs version in \`${srcdir}/lisp/version.el'.)
1398 fi
1399
1400 ### Specify what sort of things we'll be editing into Makefile and config.h.
1401 ### Use configuration here uncanonicalized to avoid exceeding size limits.
1402 AC_SUBST(version)
1403 AC_SUBST(configuration)
1404 AC_SUBST(canonical)
1405 AC_SUBST(srcdir)
1406 AC_SUBST(prefix)
1407 AC_SUBST(exec_prefix)
1408 AC_SUBST(bindir)
1409 AC_SUBST(datadir)
1410 AC_SUBST(sharedstatedir)
1411 AC_SUBST(libexecdir)
1412 AC_SUBST(mandir)
1413 AC_SUBST(infodir)
1414 AC_SUBST(lispdir)
1415 AC_SUBST(locallisppath)
1416 AC_SUBST(lisppath)
1417 AC_SUBST(etcdir)
1418 AC_SUBST(lockdir)
1419 AC_SUBST(archlibdir)
1420 AC_SUBST(docdir)
1421 AC_SUBST(bitmapdir)
1422 AC_SUBST(c_switch_system)
1423 AC_SUBST(c_switch_machine)
1424 AC_SUBST(LD_SWITCH_X_SITE)
1425 AC_SUBST(LD_SWITCH_X_SITE_AUX)
1426 AC_SUBST(C_SWITCH_X_SITE)
1427 AC_SUBST(CFLAGS)
1428 AC_SUBST(X_TOOLKIT_TYPE)
1429 AC_SUBST(machfile)
1430 AC_SUBST(opsysfile)
1431 AC_SUBST(RANLIB)
1432
1433 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}")
1434 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}")
1435 AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}")
1436 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}")
1437 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE, ${LD_SWITCH_X_SITE})
1438 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE_AUX, ${LD_SWITCH_X_SITE_AUX})
1439 AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C_SWITCH_X_SITE})
1440 AC_DEFINE_UNQUOTED(UNEXEC_SRC,       ${UNEXEC_SRC})
1441
1442 if test "${HAVE_X_WINDOWS}" = "yes" ; then
1443   AC_DEFINE(HAVE_X_WINDOWS)
1444 fi
1445 if test "${USE_X_TOOLKIT}" != "none" ; then
1446   AC_DEFINE(USE_X_TOOLKIT)
1447 fi
1448 if test "${HAVE_X11}" = "yes" ; then
1449   AC_DEFINE(HAVE_X11)
1450 fi
1451 if test "${HAVE_XFREE386}" = "yes" ; then
1452   AC_DEFINE(HAVE_XFREE386)
1453 fi
1454 if test "${HAVE_MENUS}" = "yes" ; then
1455   AC_DEFINE(HAVE_MENUS)
1456 fi
1457 if test "${GNU_MALLOC}" = "yes" ; then
1458   AC_DEFINE(GNU_MALLOC)
1459 fi
1460 if test "${REL_ALLOC}" = "yes" ; then
1461   AC_DEFINE(REL_ALLOC)
1462 fi
1463 if test "${LISP_FLOAT_TYPE}" = "yes" ; then
1464   AC_DEFINE(LISP_FLOAT_TYPE)
1465 fi
1466
1467 #### Report on what we decided to do.
1468 echo "
1469 Configured for \`${canonical}'.
1470
1471   Where should the build process find the source code?    ${srcdir}
1472   What operating system and machine description files should Emacs use?
1473         \`${opsysfile}' and \`${machfile}'
1474   What compiler should emacs be built with?               ${CC} ${CFLAGS}
1475   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
1476   Should Emacs use the relocating allocator for buffers?  ${REL_ALLOC}
1477   What window system should Emacs use?                    ${window_system}
1478   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
1479
1480 if test -n "${x_includes}"; then
1481 echo "  Where do we find X Windows header files?                ${x_includes}"
1482 else
1483 echo "  Where do we find X Windows header files?                Standard dirs"
1484 fi
1485 if test -n "${x_libraries}"; then
1486 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
1487 else
1488 echo "  Where do we find X Windows libraries?                   Standard dirs"
1489 fi
1490
1491 echo
1492
1493 # Remove any trailing slashes in these variables.
1494 changequote(, )dnl
1495 test "${prefix}" != NONE &&
1496   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
1497 test "${exec_prefix}" != NONE &&
1498   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`
1499 changequote([, ])dnl
1500
1501 AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \
1502         man/Makefile lwlib/Makefile src/Makefile.c:src/Makefile.in, [
1503
1504 ### Make the necessary directories, if they don't exist.
1505 for dir in cpp etc ; do
1506   test -d ${dir} || mkdir ${dir}
1507 done
1508
1509 # Build src/Makefile from ${srcdir}/src/Makefile.c
1510 # and lib-src/Makefile from ${srcdir}/lib-src/Makefile.c
1511 # This must be done after src/config.h is built, since we rely on that file.
1512
1513 changequote(, )dnl The horror, the horror.
1514 # Now get this: Some word that is part of the ${srcdir} directory name
1515 # or the ${configuration} value might, just might, happen to be an
1516 # identifier like `sun4' or `i386' or something, and be predefined by
1517 # the C preprocessor to some helpful value like 1, or maybe the empty
1518 # string.  Needless to say consequent macro substitutions are less
1519 # than conducive to the makefile finding the correct directory.
1520 undefs="`echo $top_srcdir $configuration $canonical |
1521 sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
1522     -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g' \
1523 `"
1524 changequote([, ])dnl
1525
1526 echo creating lib-src/Makefile
1527 ( cd lib-src
1528   rm -f junk.c junk1.c junk2.c
1529   sed -e '/start of cpp stuff/q' \
1530       < Makefile.c > junk1.c
1531   sed -e '1,/start of cpp stuff/d'\
1532       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
1533       < Makefile.c > junk.c
1534   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
1535       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
1536   cat junk1.c junk2.c > Makefile.new
1537   rm -f junk.c junk1.c junk2.c
1538   chmod 444 Makefile.new
1539   mv -f Makefile.new Makefile
1540 )
1541
1542 echo creating src/Makefile
1543 ( cd src
1544   rm -f junk.c junk1.c junk2.c
1545   sed -e '/start of cpp stuff/q' \
1546       < Makefile.c > junk1.c
1547   sed -e '1,/start of cpp stuff/d'\
1548       -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
1549       < Makefile.c > junk.c
1550   $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
1551       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
1552   cat junk1.c junk2.c > Makefile.new
1553   rm -f junk.c junk1.c junk2.c
1554   chmod 444 Makefile.new
1555   mv -f Makefile.new Makefile
1556 )
1557
1558 if test ! -f src/.gdbinit && test -f $top_srcdir/src/.gdbinit; then
1559   echo creating src/.gdbinit
1560   echo source $top_srcdir/src/.gdbinit > src/.gdbinit
1561 fi
1562
1563 ], [CPP="$CPP" CPPFLAGS="$CPPFLAGS"])