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