configure.in

   1 dnl == autoconf source for the Glasgow FP tools ==
   2 dnl (grep for '^dnl' to see the outline of this file)
   3 dnl
   4 dnl * INITIAL SETUP, CHOICE OF PLATFORM(S)
   5 #!/bin/sh
   6 #
   7 # (c) The AQUA Project, Glasgow University, 1994-1997
   8 #
   9 # Configure script for the Glasgow functional programming tools
  10 # (created automagically by autoconf...do not edit by hand)
  11 #
  12 # Do "./configure --help" to see what flags are available.
  13 # (Better yet, read the documentation!)
  14 #
  15 # First off, a distrib sanity check..
  16 AC_INIT(mk/config.mk.in)
  17
  18 # -------------------------------------------------------------------------
  19 # Prepare to generate the following header files
  20 #
  21 #
  22 AC_CONFIG_HEADER(mk/config.h)
  23
  24 # No, we don't do `--srcdir'...
  25 if test x"$srcdir" != 'x.' ; then
  26     echo "This configuration does not support the \`--srcdir' option.."
  27     exit 1
  28 fi
  29
  30 #
  31 # Remove some automounter nonsense (Glasgow specific gruff)
  32 #
  33 hardtop=`pwd`
  34 hardtop=`echo $hardtop | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|'`
  35
  36 #OLD: hardtop=`echo $hardtop | sed 's|^/tmp_mnt/|/|' | sed 's|^/export/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|'`
  37
  38 echo ''
  39 echo "*** The top of your build tree is: $hardtop"
  40 AC_SUBST(hardtop)
  41
  42 # -------------------------------------------------------------------------
  43 dnl ** choose host(/target/build) platform
  44 #
  45 # Guess host/target/build platform(s) if necessary.
  46 #
  47 AC_CANONICAL_SYSTEM
  48
  49 # "$host" defaults to "$target"
  50 if test "x$host" = xNONE ; then
  51     host=$target
  52 fi
  53 # "$build" defaults to "$host"
  54 #if test "x$build" = xNONE ; then
  55 #    build=$host
  56 #else
  57 #    echo "This configuration does not support the \`--build' option."
  58 #    exit 1
  59 #fi
  60
  61 dnl ** canonicalize platform names
  62 # Canonicali[sz]e those babies
  63 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  64 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  65 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  66
  67 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  68     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  69     exit 1
  70 fi
  71
  72 #
  73 # The following will be more difficult when we *are* cross-compiling.
  74 # Suitable names to slam in *_CPP are in platform.h.in.
  75 # We also record the architecture, vendor, and operating system (OS)
  76 # separately.
  77 HostPlatformFull=$HostPlatform
  78 case $HostPlatform in
  79 alpha-dec-osf[[1234]]*)
  80         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  81         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  82         BuildPlatform=alpha-dec-osf1  # hack
  83         HostPlatform_CPP='alpha_dec_osf1'
  84         HostArch_CPP='alpha'
  85         HostVendor_CPP='dec'
  86         HostOS_CPP='osf1'
  87         ;;
  88 hppa1.1-hp-hpux*)
  89         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
  90         TargetPlatform=hppa1.1-hp-hpux
  91         BuildPlatform=hppa1.1-hp-hpux
  92         HostPlatform_CPP='hppa1_1_hp_hpux'
  93         HostArch_CPP='hppa1_1'
  94         HostVendor_CPP='hp'
  95         HostOS_CPP='hpux'
  96         ;;
  97 i[[3456]]86-*-linuxaout*)
  98         HostPlatform=i386-unknown-linuxaout   # hack again
  99         TargetPlatform=i386-unknown-linuxaout
 100         BuildPlatform=i386-unknown-linuxaout
 101         HostPlatform_CPP='i386_unknown_linuxaout'
 102         HostArch_CPP='i386'
 103         HostVendor_CPP='unknown'
 104         HostOS_CPP='linuxaout'
 105         ;;
 106 i[[3456]]86-*-linux*)
 107         HostPlatform=i386-unknown-linux # hack again
 108         TargetPlatform=i386-unknown-linux
 109         BuildPlatform=i386-unknown-linux
 110         HostPlatform_CPP='i386_unknown_linux'
 111         HostArch_CPP='i386'
 112         HostVendor_CPP='unknown'
 113         HostOS_CPP='linux'
 114         ;;
 115 i[[3456]]86-*-freebsd*)
 116         HostPlatform=i386-unknown-freebsd # hack again
 117         TargetPlatform=i386-unknown-freebsd
 118         BuildPlatform=i386-unknown-freebsd
 119         HostPlatform_CPP='i386_unknown_freebsd'
 120         HostArch_CPP='i386'
 121         HostVendor_CPP='unknown'
 122         HostOS_CPP='freebsd'
 123         ;;
 124 i[[3456]]86-*-netbsd*)
 125         HostPlatform=i386-unknown-netbsd # hack again
 126         TargetPlatform=i386-unknown-netbsd
 127         BuildPlatform=i386-unknown-netbsd
 128         HostPlatform_CPP='i386_unknown_netbsd'
 129         HostArch_CPP='i386'
 130         HostVendor_CPP='unknown'
 131         HostOS_CPP='netbsd'
 132         ;;
 133 i[[3456]]86-*-solaris2*)
 134         HostPlatform=i386-unknown-solaris2 # hack again
 135         TargetPlatform=i386-unknown-solaris2
 136         BuildPlatform=i386-unknown-solaris2
 137         HostPlatform_CPP='i386_unknown_solaris2'
 138         HostArch_CPP='i386'
 139         HostVendor_CPP='unknown'
 140         HostOS_CPP='solaris2'
 141         ;;
 142 i[[3456]]86-*-cygwin32*)
 143         HostPlatform=i386-unknown-cygwin32 # hack again
 144         TargetPlatform=i386-unknown-cygwin32
 145         BuildPlatform=i386-unknown-cygwin32
 146         HostPlatform_CPP='i386_unknown_cygwin32'
 147         HostArch_CPP='i386'
 148         HostVendor_CPP='unknown'
 149         HostOS_CPP='cygwin32'
 150         ;;
 151 m68k-next-nextstep2)
 152         HostPlatform_CPP='m68k_next_nextstep2'
 153         HostArch_CPP='m68k'
 154         HostVendor_CPP='next'
 155         HostOS_CPP='nextstep2'
 156         ;;
 157 m68k-next-nextstep3)
 158         HostPlatform_CPP='m68k_next_nextstep3'
 159         HostArch_CPP='m68k'
 160         HostVendor_CPP='next'
 161         HostOS_CPP='nextstep3'
 162         ;;
 163 i[[3456]]86-next-nextstep3)
 164         HostPlatform=i386-next-nextstep3 # hack again
 165         TargetPlatform=i386-next-nextstep3
 166         BuildPlatform=i386-next-nextstep3
 167         HostPlatform_CPP='i386_next_nextstep3'
 168         HostArch_CPP='i386'
 169         HostVendor_CPP='next'
 170         HostOS_CPP='nextstep3'
 171         ;;
 172 m68k-sun-sunos4*)
 173         HostPlatform=m68k-sun-sunos4
 174         TargetPlatform=m68k-sun-sunos4 #hack
 175         BuildPlatform=m68k-sun-sunos4 #hack
 176         HostPlatform_CPP='m68k_sun_sunos4'
 177         HostArch_CPP='m68k'
 178         HostVendor_CPP='sun'
 179         HostOS_CPP='sunos4'
 180         ;;
 181 mips-dec-ultrix*)
 182         HostPlatform_CPP='mips_dec_ultrix'
 183         HostArch_CPP='mipsel'   # NB a little different
 184         HostVendor_CPP='dec'
 185         HostOS_CPP='ultrix'
 186         ;;
 187 mips-sgi-irix*)
 188         HostPlatform=mips-sgi-irix
 189         TargetPlatform=mips-sgi-irix #hack
 190         BuildPlatform=mips-sgi-irix #hack
 191         HostPlatform_CPP='mips_sgi_irix'
 192         HostArch_CPP='mipseb'   # NB a little different
 193         HostVendor_CPP='sgi'
 194         HostOS_CPP='irix'
 195         ;;
 196 rs6000-ibm-aix*)
 197         HostPlatform=rs6000-ibm-aix
 198         TargetPlatform=rs6000-ibm-aix #hack
 199         BuildPlatform=rs6000-ibm-aix #hack
 200         HostPlatform_CPP='rs6000_ibm_aix'
 201         HostArch_CPP='rs6000'
 202         HostVendor_CPP='ibm'
 203         HostOS_CPP='aix'
 204         ;;
 205 powerpc-ibm-aix*)
 206         HostPlatform=powerpc-ibm-aix
 207         TargetPlatform=powerpc-ibm-aix #hack
 208         BuildPlatform=powerpc-ibm-aix #hack
 209         HostPlatform_CPP='powerpc_ibm_aix'
 210         HostArch_CPP='powerpc'
 211         HostVendor_CPP='ibm'
 212         HostOS_CPP='aix'
 213         ;;
 214 sparc-sun-sunos4*)
 215         HostPlatform=sparc-sun-sunos4
 216         TargetPlatform=sparc-sun-sunos4 #hack
 217         BuildPlatform=sparc-sun-sunos4 #hack
 218         HostPlatform_CPP='sparc_sun_sunos4'
 219         HostArch_CPP='sparc'
 220         HostVendor_CPP='sun'
 221         HostOS_CPP='sunos4'
 222         ;;
 223 sparc-sun-solaris2*)
 224         HostPlatform=sparc-sun-solaris2
 225         TargetPlatform=sparc-sun-solaris2 #hack
 226         BuildPlatform=sparc-sun-solaris2 #hack
 227         HostPlatform_CPP='sparc_sun_solaris2'
 228         HostArch_CPP='sparc'
 229         HostVendor_CPP='sun'
 230         HostOS_CPP='solaris2'
 231         ;;
 232 *)
 233         echo "Unrecognised platform: $HostPlatform"
 234         exit 1
 235         ;;
 236 esac
 237 echo "Which we'll canonicalise into: $HostPlatform"
 238 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 239 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 240
 241 BuildPlatform_CPP=$HostPlatform_CPP
 242 TargetPlatform_CPP=$HostPlatform_CPP
 243 BuildArch_CPP=$HostArch_CPP
 244 TargetArch_CPP=$HostArch_CPP
 245 BuildOS_CPP=$HostOS_CPP
 246 TargetOS_CPP=$HostOS_CPP
 247 BuildVendor_CPP=$HostVendor_CPP
 248 TargetVendor_CPP=$HostVendor_CPP
 249
 250 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 251 dnl AC_SUBST(BuildPlatform)
 252 AC_SUBST(HostPlatformFull)
 253 AC_SUBST(HostPlatform)
 254 AC_SUBST(TargetPlatform)
 255 AC_SUBST(HostPlatform_CPP)
 256 dnl AC_SUBST(BuildPlatform_CPP)
 257 dnl AC_SUBST(TargetPlatform_CPP)
 258 AC_SUBST(HostArch_CPP)
 259 dnl AC_SUBST(BuildArch_CPP)
 260 dnl AC_SUBST(TargetArch_CPP)
 261 AC_SUBST(HostOS_CPP)
 262 dnl AC_SUBST(BuildOS_CPP)
 263 dnl AC_SUBST(TargetOS_CPP)
 264 AC_SUBST(HostVendor_CPP)
 265 dnl AC_SUBST(BuildVendor_CPP)
 266 dnl AC_SUBST(TargetVendor_CPP)
 267
 268 # -------------------------------------------------------------------------
 269 dnl
 270 dnl * _GENERAL_ CONFIGURATION CHECKS
 271 #
 272 dnl ** are we at Glasgow?
 273 #
 274 # This stuff is in danger of going away..
 275 #
 276 if test -d /local/fp -a -d /users/fp/simonpj; then
 277     echo "Brilliant!  You must be a Glaswegian."
 278     AT_GLASGOW=1
 279     if test "x$prefix" = xNONE; then
 280         prefix=/local/fp
 281         echo "Assuming installation prefix of $prefix"
 282     fi
 283     if test "x$exec_prefix" = xNONE; then
 284         # Sigh: the defn of exec_prefix does not include the bin* bit...
 285         # WDP 94/07
 286         exec_prefix=/local/fp
 287         echo "Assuming binary installation prefix of $exec_prefix"
 288     fi
 289 else
 290     AT_GLASGOW=0
 291 fi
 292 AC_SUBST(AT_GLASGOW)
 293 test -n "$verbose" && echo "    setting AT_GLASGOW to $AT_GLASGOW"
 294 #
 295 #
 296 #
 297 dnl ** does #! work?
 298 #
 299 AC_SYS_INTERPRETER()
 300 #
 301 dnl ** look for `perl', but watch out for version 4.035
 302 #
 303 AC_CHECK_PROG(PerlCmd,perl,$ac_dir/$ac_word)
 304 if test -z "$PerlCmd"; then
 305     echo "You must install perl before you can continue"
 306     echo "Perhaps it is already installed, but not in your PATH?"
 307     exit 1
 308 else
 309     $PerlCmd -v >conftest.out 2>&1
 310     if egrep "version 4" conftest.out >/dev/null 2>&1; then
 311         if egrep "Patch level: 35" conftest.out >/dev/null 2>&1; then
 312             echo "
 313 ************************************************************************
 314 Uh-oh...looks like you have Perl 4.035.
 315
 316 Perl version 4.035 has a bug to do with recursion that will bite if
 317 you run the lit2texi script, when making Info files from
 318 literate files of various sorts.  Either use the current version
 319 (4.036), an older version (e.g., perl 4.019) or apply the patch in
 320 glafp-utils/perl-4.035-fixes to your 4.035 perl.
 321 ************************************************************************
 322 "
 323         fi
 324     else
 325         if egrep "version 5" conftest.out >/dev/null 2>&1; then
 326             :
 327         else
 328             echo "I'm not sure if your version of perl will work,"
 329             echo "but it's worth a shot, eh?"
 330         fi
 331     fi
 332     rm -fr conftest*
 333 fi
 334 #
 335 dnl ** does #!.../perl work? (sometimes it's too long...)
 336 echo "checking if \`#!$PerlCmd' works in shell scripts"
 337 echo "#!$PerlCmd"'
 338 exit $1;
 339 ' > conftest
 340 chmod u+x conftest
 341 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
 342 if test $? -ne 69; then
 343    echo "It does!"
 344 else
 345    echo "It doesn't!  Perhaps \`#!$PerlCmd' is too long (often 32 characters max)"
 346    exit 1
 347 fi
 348 rm -f conftest
 349 #
 350 dnl ** check if perl library is properly installed
 351 # (by seeing if a "do 'getopts.pl'" works...
 352 if $PerlCmd -e 'do "getopts.pl" || exit(1); exit(0);' > /dev/null 2>&1 ; then
 353     :
 354 else
 355     echo "I think your perl library is misinstalled:"
 356     echo "The following script did not work:"
 357     echo '      do "getopts.pl" || exit(1); exit(0);'
 358     echo 'But, anyway, we will continue in our quest..'
 359 fi
 360 #
 361 #
 362 dnl ** look for GCC and find out which version
 363 # Figure out which C compiler to use.  Gcc is preferred.
 364 # If gcc, make sure it's at least 2.1
 365 #
 366 AC_PROG_CC
 367 if test -z "$GCC"; then
 368     echo "You would be better off with gcc"
 369     echo "Perhaps it is already installed, but not in your PATH?"
 370     HaveGcc='NO'
 371 else
 372     gcc -v > conftest.out 2>&1
 373     echo '/version (\d+)\.(\d+)/ && $1*10+$2 > 20 && print "YES";' > conftest.pl
 374     HaveGcc=`eval $PerlCmd -n conftest.pl conftest.out`
 375     if test -z "$HaveGcc"; then
 376         echo "I'm not sure if your version of gcc will work,"
 377         echo "but it's worth a shot, eh?"
 378         HaveGcc='YES'
 379     fi
 380     rm -fr conftest*
 381 fi
 382 AC_SUBST(HaveGcc)
 383
 384 # Deprecated (AC_PROG_CC does it): AC_C_CROSS
 385 #
 386 dnl ** figure out how to do context diffs
 387 # (NB: NeXTStep thinks diff'ing a file against itself is "trouble")
 388 #
 389 echo foo > conftest1
 390 echo foo > conftest2
 391 if diff -C 1 conftest1 conftest2 > /dev/null 2>&1 ; then
 392     ContextDiffCmd='diff -C 1'
 393 else
 394     if diff -c1 conftest1 conftest2 > /dev/null 2>&1 ; then
 395         ContextDiffCmd='diff -c1'
 396     else
 397         echo "Can't figure out how to do context diffs."
 398         echo "Neither \`diff -C 1' nor \`diff -c1' works."
 399         exit 1
 400     fi
 401 fi
 402 rm -f conftest1 conftest2
 403 AC_SUBST(ContextDiffCmd)
 404 #
 405 dnl ** look for a decent parser generator (bison preferred)
 406 #
 407 #
 408 AC_CHECK_PROG(YaccCmd, bison, bison -y)
 409 if test -z "$YaccCmd"; then
 410     echo "Can't find bison out there..."
 411     AC_CHECK_PROG(WhatCmd, what, what, :)
 412     AC_CHECK_PROG(YaccCmd, yacc, $ac_dir/$ac_word)
 413     if test -z "$YaccCmd"; then
 414         echo "But that's okay...I can't find yacc either."
 415         YaccCmd=:
 416     else
 417         $WhatCmd $YaccCmd > conftest.out
 418         if egrep 'y1\.c 1\..*SMI' conftest.out >/dev/null 2>&1; then
 419             echo "I don't trust your $YaccCmd; it looks like an old Sun yacc"
 420             if test -f /usr/lang/yacc; then
 421                 echo "I'm going to use /usr/lang/yacc instead"
 422                 YaccCmd=/usr/lang/yacc
 423             else
 424                 echo "I'm assuming the worst...no parser generator at all"
 425                 YaccCmd=:
 426             fi
 427         elif egrep 'y1\.c.*Revision: 4\.2\.6\.3.*DEC' conftest.out >/dev/null 2>&1; then
 428             echo "I don't trust your $YaccCmd; it looks like a lame DEC yacc"
 429             echo "I'm assuming the worst...no parser generator at all"
 430             YaccCmd=:
 431         else
 432             echo "But that's okay...as far as I know, your yacc will work."
 433         fi
 434         rm -fr conftest*
 435     fi
 436 fi
 437
 438 dnl ** Find lex command (lex or flex) and library (-ll or -lfl)
 439 #
 440 AC_PROG_LEX
 441
 442 # -------------------------------------------------------------------------
 443 #
 444 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 445 #
 446 AC_PROG_CPP
 447 if echo $CPP | egrep gcc >/dev/null 2>&1; then
 448     echo > conftest.c
 449     gcc -v -E conftest.c >/dev/null 2>conftest.out
 450     echo '/(\S+\/cpp)/ && print "$1";' > conftest.pl
 451     # GNUCPP: used in jmake.c (GnuCppCmd) and in mkdependC
 452     # (where we could do with the usual pre-#defines)
 453     GNUCPP="`eval $PerlCmd -n conftest.pl conftest.out`"
 454     test -n "$verbose" && echo "        setting GNUCPP to $GNUCPP"
 455     # RAWCPP: we do not want *any* pre-#defines...
 456     # (e.g., hscpp, mkdependHS)
 457     RAWCPP="`eval $PerlCmd -n conftest.pl conftest.out` -traditional"
 458     test -n "$verbose" && echo "        setting RAWCPP to $RAWCPP"
 459     rm -fr conftest*
 460 fi
 461 # ToDo: what are GNUCPP and RAWCPP if the above if didn't fire? WDP 95/02
 462 AC_SUBST(GNUCPP)
 463 AC_SUBST(RAWCPP)
 464 #
 465 dnl ** figure out how to do a BSD-ish install
 466 #
 467 AC_PROG_INSTALL
 468 #
 469 dnl ** figure out what arguments to feed to `ar'
 470 #
 471 AC_CHECK_PROG(ArCmd,ar,$ac_dir/$ac_word)
 472 if test -z "$ArCmd"; then
 473     echo "You don't seem to have ar...I have no idea how to make a library"
 474     exit 1;
 475 fi
 476 if $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then
 477     ArCmd="$ArCmd clqs"
 478     NeedRanLib=''
 479 elif $ArCmd cqs conftest.a >/dev/null 2>/dev/null; then
 480     ArCmd="$ArCmd cqs"
 481     NeedRanLib=''
 482 elif $ArCmd clq conftest.a >/dev/null 2>/dev/null; then
 483     ArCmd="$ArCmd clq"
 484     NeedRanLib='YES'
 485 elif $ArCmd cq conftest.a >/dev/null 2>/dev/null; then
 486     ArCmd="$ArCmd cq"
 487     NeedRanLib='YES'
 488 elif $ArCmd cq conftest.a 2>&1 | grep 'no archive members specified' >/dev/null 2>/dev/null; then
 489     ArCmd="$ArCmd cq"
 490     NeedRanLib='YES'
 491 else
 492     echo "I can't figure out how to use your $ArCmd"
 493     exit 1
 494 fi
 495 rm -rf conftest*
 496 test -n "$ArCmd" && test -n "$verbose" && echo "        setting ArCmd to $ArCmd"
 497 AC_SUBST(ArCmd)
 498 #
 499 dnl ** figure out if we need `ranlib'
 500 #
 501 if test -z "$NeedRanLib"; then
 502     # we hackily override a few platforms on a case-by-case basis
 503     case $HostPlatform in
 504     i386-*-linuxaout)
 505         NeedRanLib='YES'
 506         ;;
 507     *)  RANLIB=':'
 508         ;;
 509     esac
 510     test -n "$verbose" && echo "        setting RANLIB to $RANLIB"
 511 fi
 512 if test -n "$NeedRanLib"; then
 513     AC_PROG_RANLIB
 514 fi
 515 AC_SUBST(RANLIB)
 516 #
 517 #
 518 dnl ** Check to see whether ln -s works
 519 #
 520 AC_PROG_LN_S()
 521 AC_SUBST(LN_S)
 522 #
 523 dnl ** Find the path to sed **
 524 AC_PATH_PROG(SedCmd,sed,$ac_dir/$ac_word)
 525 #
 526 # It better be around somewhere (we wouldn't
 527 # exec this script properly if it wasn't!)
 528 #
 529 AC_SUBST(SedCmd)
 530 #
 531 dnl ** check for time command **
 532 AC_PATH_PROG(TimeCmd,time,$ac_dir/$ac_word)
 533 #
 534 AC_SUBST(TimeCmd)
 535 #
 536 dnl ** check for tar **
 537 #
 538 # if GNU tar is named gtar, look for it first.
 539 #
 540 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 541 AC_SUBST(TarCmd)
 542
 543 #
 544 dnl ** check for gzip/compress **
 545 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 546
 547 compress_nm=`basename $CompressCmd`
 548
 549 if test x"$compress_nm" = xgzip; then
 550   CompressCmd="$CompressCmd -d"
 551   CompressSuffix="gz"
 552 else
 553   CompressSuffix="Z"
 554 fi
 555 AC_SUBST(CompressCmd)
 556 AC_SUBST(CompressSuffix)
 557 #
 558 dnl ** check for installed happy binary
 559 #
 560 AC_PATH_PROG(HappyCmd,happy)
 561 AC_SUBST(HappyCmd)
 562 #
 563 #
 564 dnl ** check for installed lx binary
 565 #
 566 AC_PATH_PROG(LxCmd,lx)
 567 AC_SUBST(LxCmd)
 568 #
 569 #
 570 dnl ** check for full ANSI header (.h) files
 571 #
 572 AC_HEADER_STDC
 573 #
 574 dnl ** check for specific header (.h) files that we are interested in
 575 #
 576 AC_CHECK_HEADERS(dirent.h fcntl.h grp.h malloc.h memory.h nlist.h pwd.h siginfo.h signal.h stdlib.h string.h sys/fault.h sys/file.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/utsname.h sys/vadvise.h sys/wait.h termios.h time.h types.h unistd.h utime.h vfork.h readline/readline.h )
 577 #
 578 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 579 #
 580 AC_HEADER_TIME
 581 #
 582 dnl ** how do we get a timezone name, and UTC offset ?
 583 #
 584 AC_STRUCT_TIMEZONE
 585 HaveAltZone=yes
 586 AC_MSG_CHECKING([for altzone])
 587 AC_TRY_LINK([#include <time.h>], [return altzone;], AC_DEFINE(HAVE_ALTZONE),HaveAltZone=no)
 588 AC_MSG_RESULT($HaveAltZone)
 589 #
 590 dnl ** determine the type of signal()
 591 #
 592 AC_TYPE_SIGNAL
 593 #
 594 dnl ** check for specific library functions that we are interested in
 595 #
 596 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect setitimer stat sysconf timelocal times vadvise vfork)
 597 #
 598 dnl ** can we get alloca?
 599 #
 600 AC_FUNC_ALLOCA
 601 #
 602 dnl ** determine whether or not const works
 603 #
 604 AC_C_CONST
 605 #
 606 dnl ** check for leading underscores in symbol names
 607 # We assume that they _aren't_ there if anything goes wrong.
 608 #
 609 echo checking for a leading underscore in symbol names
 610 AC_TRY_RUN(
 611 [#ifdef HAVE_NLIST_H
 612 #include <nlist.h>
 613 struct nlist xYzzY[] = {{"_xYzzY", 0},{0}};
 614 #endif
 615
 616 main(argc, argv)
 617 int argc;
 618 char **argv;
 619 {
 620 #ifdef HAVE_NLIST_H
 621     if(nlist(argv[0], xYzzY) == 0 && xYzzY[0].n_value != 0)
 622         exit(0);
 623 #endif
 624     exit(1);
 625 }], LeadingUnderscore='YES', LeadingUnderscore='NO', LeadingUnderscore='YES')
 626 test -n "$verbose" && echo "    setting LeadingUnderscore to $LeadingUnderscore"
 627 AC_SUBST(LeadingUnderscore)
 628
 629 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
 630
 631 #
 632 # It'll break soon enough if it didn't, but we perform a sanity
 633 # check here on the generated config.mk file to see if the
 634 # sed that was used is of the well-behaved sort.
 635 #
 636 #grep @ mk/config.mk > conftest.out
 637 #if grep -v '#     enclosed in @at-signs@.' conftest.out >/dev/null 2>&1; then
 638 #   :
 639 #else
 640 #   echo 'Hmm..suspicious, did the configure script perform all the @..@ substitutions in mk/config.mk?..';
 641 #   grep -v '#     enclosed in @at-signs@.' conftest.out /dev/null
 642 #fi
 643 #rm -f conftest*
 644
 645 echo ''
 646 echo '************************************************'
 647 echo '*** NOW DO: gmake boot followed by gmake all'
 648 echo '************************************************'
 649 exit 0