configure.in

   1 dnl == autoconf source for the Glasgow FP tools ==
   2 dnl (run "grep '^dnl \*' configure.in | sed -e 's/dnl / /g; s/\*\*/   +/g;'"
   3 dnl  (or some such) to see the outline of this file)
   4 dnl
   5 #
   6 # (c) The AQUA Project, Glasgow University, 1994-1998
   7 #
   8 # Configure script template for the Glasgow functional programming tools
   9 #
  10 # Process with 'autoconf' to get a working configure script.
  11 #
  12 # For the generated configure script, do "./configure --help" to
  13 # see what flags are available. (Better yet, read the documentation!)
  14 #
  15
  16 # First off, a distrib sanity check..
  17 AC_INIT(mk/config.mk.in)
  18
  19 dnl * Declare subdirectories that have a private configure script
  20 dnl
  21 dnl After the toplevel configuration is complete, the script will recurse into
  22 dnl these subdirectories (the use of cache values makes repeated checks cheap)
  23 dnl (We probably have to add hslibs/{OpenGL,GLUT} here later...)
  24 AC_CONFIG_SUBDIRS(ghc)
  25
  26 # -------------------------------------------------------------------------
  27 # Prepare to generate the following header files
  28 #
  29 #
  30 AC_CONFIG_HEADER(mk/config.h)
  31
  32 # No, semi-sadly, we don't do `--srcdir'...
  33 if test x"$srcdir" != 'x.' ; then
  34     echo "This configuration does not support the \`--srcdir' option.."
  35     exit 1
  36 fi
  37
  38 #
  39 # Remove common automounter nonsense + convert from UNC to DOS style paths
  40 # (UNC awareness isn't quite there yet for cygwin32-beta18 and consituent tools.)
  41 #
  42 hardtop=`pwd`
  43 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|' | sed 's|^//\(.\)/|\1:/|' `
  44
  45 echo ''
  46 echo "*** The top of your build tree is: $hardtop"
  47 # subst of hardtop is done below after we've computed hardtop_plat.
  48
  49 dnl--------------------------------------------------------------------
  50 dnl * Choose host(/target/build) platform
  51 dnl--------------------------------------------------------------------
  52
  53 dnl Guess host/target/build platform(s) if necessary.
  54 AC_CANONICAL_SYSTEM
  55
  56 # "$host" defaults to "$target"
  57 if test "x$host" = xNONE ; then
  58     host=$target
  59 fi
  60
  61 dnl ** canonicalize platform names
  62 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  63 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  64 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  65
  66 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  67     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  68     exit 1
  69 fi
  70
  71 exeext=''
  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[[12]]*)
  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 alpha*-dec-osf[[345]]*)
  88         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  89         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  90         BuildPlatform=alpha-dec-osf3  # hack
  91         HostPlatform_CPP='alpha_dec_osf3'
  92         HostArch_CPP='alpha'
  93         HostVendor_CPP='dec'
  94         HostOS_CPP='osf3'
  95         ;;
  96 alpha*-unknown-linux)
  97         HostPlatform=alpha-unknown-linux
  98         TargetPlatform=alpha-unknown-linux
  99         BuildPlatform=alpha-unknown-linux
 100         HostPlatform_CPP='alpha_unknown_linux'
 101         HostArch_CPP='alpha'
 102         HostVendor_CPP='unknown'
 103         HostOS_CPP='linux'
 104         ;;
 105 alpha*-unknown-freebsd*)
 106         HostPlatform=alpha-unknown-freebsd
 107         TargetPlatform=alpha-unknown-freebsd
 108         BuildPlatform=alpha-unknown-freebsd
 109         HostPlatform_CPP='alpha_unknown_freebsd'
 110         HostArch_CPP='alpha'
 111         HostVendor_CPP='unknown'
 112         HostOS_CPP='freebsd'
 113         ;;
 114 hppa1.1-hp-hpux*)
 115         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 116         TargetPlatform=hppa1.1-hp-hpux
 117         BuildPlatform=hppa1.1-hp-hpux
 118         HostPlatform_CPP='hppa1_1_hp_hpux'
 119         HostArch_CPP='hppa1_1'
 120         HostVendor_CPP='hp'
 121         HostOS_CPP='hpux'
 122         ;;
 123 i[[3456]]86-*-linuxaout*)
 124         HostPlatform=i386-unknown-linuxaout   # hack again
 125         TargetPlatform=i386-unknown-linuxaout
 126         BuildPlatform=i386-unknown-linuxaout
 127         HostPlatform_CPP='i386_unknown_linuxaout'
 128         HostArch_CPP='i386'
 129         HostVendor_CPP='unknown'
 130         HostOS_CPP='linuxaout'
 131         ;;
 132 i[[3456]]86-*-linux*)
 133         HostPlatform=i386-unknown-linux # hack again
 134         TargetPlatform=i386-unknown-linux
 135         BuildPlatform=i386-unknown-linux
 136         HostPlatform_CPP='i386_unknown_linux'
 137         HostArch_CPP='i386'
 138         HostVendor_CPP='unknown'
 139         HostOS_CPP='linux'
 140         ;;
 141 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 142         HostPlatform=i386-unknown-freebsd # hack again
 143         TargetPlatform=i386-unknown-freebsd
 144         BuildPlatform=i386-unknown-freebsd
 145         HostPlatform_CPP='i386_unknown_freebsd'
 146         HostArch_CPP='i386'
 147         HostVendor_CPP='unknown'
 148         HostOS_CPP='freebsd'
 149         ;;
 150 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 151         HostPlatform=i386-unknown-freebsd2 # hack again
 152         TargetPlatform=i386-unknown-freebsd2
 153         BuildPlatform=i386-unknown-freebsd2
 154         HostPlatform_CPP='i386_unknown_freebsd2'
 155         HostArch_CPP='i386'
 156         HostVendor_CPP='unknown'
 157         HostOS_CPP='freebsd2'
 158         ;;
 159 i[[3456]]86-*-netbsd*)
 160         HostPlatform=i386-unknown-netbsd # hack again
 161         TargetPlatform=i386-unknown-netbsd
 162         BuildPlatform=i386-unknown-netbsd
 163         HostPlatform_CPP='i386_unknown_netbsd'
 164         HostArch_CPP='i386'
 165         HostVendor_CPP='unknown'
 166         HostOS_CPP='netbsd'
 167         ;;
 168 i[[3456]]86-*-openbsd*)
 169         HostPlatform=i386-unknown-openbsd # hack again
 170         TargetPlatform=i386-unknown-openbsd
 171         BuildPlatform=i386-unknown-openbsd
 172         HostPlatform_CPP='i386_unknown_openbsd'
 173         HostArch_CPP='i386'
 174         HostVendor_CPP='unknown'
 175         HostOS_CPP='openbsd'
 176         ;;
 177 i[[3456]]86-*-solaris2*)
 178         HostPlatform=i386-unknown-solaris2 # hack again
 179         TargetPlatform=i386-unknown-solaris2
 180         BuildPlatform=i386-unknown-solaris2
 181         HostPlatform_CPP='i386_unknown_solaris2'
 182         HostArch_CPP='i386'
 183         HostVendor_CPP='unknown'
 184         HostOS_CPP='solaris2'
 185         ;;
 186 i[[3456]]86-*-cygwin*)
 187         HostPlatform=i386-unknown-cygwin32 # hack again
 188         TargetPlatform=i386-unknown-cygwin32
 189         BuildPlatform=i386-unknown-cygwin32
 190         HostPlatform_CPP='i386_unknown_cygwin32'
 191         HostArch_CPP='i386'
 192         HostVendor_CPP='unknown'
 193         HostOS_CPP='cygwin32'
 194         exeext='.exe'
 195         ;;
 196 i[[3456]]86-*-mingw32*)
 197         HostPlatform=i386-unknown-mingw32 # hack again
 198         TargetPlatform=i386-unknown-mingw32
 199         BuildPlatform=i386-unknown-mingw32
 200         HostPlatform_CPP='i386_unknown_mingw32'
 201         HostArch_CPP='i386'
 202         HostVendor_CPP='unknown'
 203         HostOS_CPP='mingw32'
 204         exeext='.exe'
 205         ;;
 206 ia64-*-linux*)
 207         HostPlatform=ia64-unknown-linux # hack again
 208         TargetPlatform=ia64-unknown-linux
 209         BuildPlatform=ia64-unknown-linux
 210         HostPlatform_CPP='ia64_unknown_linux'
 211         HostArch_CPP='ia64'
 212         HostVendor_CPP='unknown'
 213         HostOS_CPP='linux'
 214         ;;
 215 m68k-next-nextstep2)
 216         HostPlatform_CPP='m68k_next_nextstep2'
 217         HostArch_CPP='m68k'
 218         HostVendor_CPP='next'
 219         HostOS_CPP='nextstep2'
 220         ;;
 221 m68k-next-nextstep3)
 222         HostPlatform_CPP='m68k_next_nextstep3'
 223         HostArch_CPP='m68k'
 224         HostVendor_CPP='next'
 225         HostOS_CPP='nextstep3'
 226         ;;
 227 i[[3456]]86-next-nextstep3)
 228         HostPlatform=i386-next-nextstep3 # hack again
 229         TargetPlatform=i386-next-nextstep3
 230         BuildPlatform=i386-next-nextstep3
 231         HostPlatform_CPP='i386_next_nextstep3'
 232         HostArch_CPP='i386'
 233         HostVendor_CPP='next'
 234         HostOS_CPP='nextstep3'
 235         ;;
 236 m68k-*-openbsd*)
 237         HostPlatform=m68k-unknown-openbsd
 238         TargetPlatform=m68k-unknown-openbsd
 239         BuildPlatform=m68k-unknown-openbsd
 240         HostPlatform_CPP='m68k_unknown_openbsd'
 241         HostArch_CPP='m68k'
 242         HostVendor_CPP='unknown'
 243         HostOS_CPP='openbsd'
 244         ;;
 245 m68k-apple-netbsd*)
 246         HostPlatform=m68k-apple-netbsd
 247         TargetPlatform=m68k-apple-netbsd
 248         BuildPlatform=m68k-apple-netbsd
 249         HostPlatform_CPP='m68k_apple_netbsd'
 250         HostArch_CPP='m68k'
 251         HostVendor_CPP='apple'
 252         HostOS_CPP='netbsd'
 253         ;;
 254 m68k-sun-sunos4*)
 255         HostPlatform=m68k-sun-sunos4
 256         TargetPlatform=m68k-sun-sunos4 #hack
 257         BuildPlatform=m68k-sun-sunos4 #hack
 258         HostPlatform_CPP='m68k_sun_sunos4'
 259         HostArch_CPP='m68k'
 260         HostVendor_CPP='sun'
 261         HostOS_CPP='sunos4'
 262         ;;
 263 mips-dec-ultrix*)
 264         HostPlatform_CPP='mips_dec_ultrix'
 265         HostArch_CPP='mipsel'   # NB a little different
 266         HostVendor_CPP='dec'
 267         HostOS_CPP='ultrix'
 268         ;;
 269 mips-sgi-irix*)
 270         HostPlatform=mips-sgi-irix
 271         TargetPlatform=mips-sgi-irix #hack
 272         BuildPlatform=mips-sgi-irix #hack
 273         HostPlatform_CPP='mips_sgi_irix'
 274         HostArch_CPP='mipseb'   # NB a little different
 275         HostVendor_CPP='sgi'
 276         HostOS_CPP='irix'
 277         ;;
 278 rs6000-ibm-aix*)
 279         HostPlatform=rs6000-ibm-aix
 280         TargetPlatform=rs6000-ibm-aix #hack
 281         BuildPlatform=rs6000-ibm-aix #hack
 282         HostPlatform_CPP='rs6000_ibm_aix'
 283         HostArch_CPP='rs6000'
 284         HostVendor_CPP='ibm'
 285         HostOS_CPP='aix'
 286         ;;
 287 powerpc-ibm-aix*)
 288         HostPlatform=powerpc-ibm-aix
 289         TargetPlatform=powerpc-ibm-aix #hack
 290         BuildPlatform=powerpc-ibm-aix #hack
 291         HostPlatform_CPP='powerpc_ibm_aix'
 292         HostArch_CPP='powerpc'
 293         HostVendor_CPP='ibm'
 294         HostOS_CPP='aix'
 295         ;;
 296 powerpc-apple-darwin*)
 297         HostPlatform=powerpc-apple-darwin
 298         TargetPlatform=powerpc-apple-darwin #hack
 299         BuildPlatform=powerpc-apple-darwin #hack
 300         HostPlatform_CPP='powerpc_apple_darwin'
 301         HostArch_CPP='powerpc'
 302         HostVendor_CPP='apple'
 303         HostOS_CPP='darwin'
 304         ;;
 305 sparc-sun-sunos4*)
 306         HostPlatform=sparc-sun-sunos4
 307         TargetPlatform=sparc-sun-sunos4 #hack
 308         BuildPlatform=sparc-sun-sunos4 #hack
 309         HostPlatform_CPP='sparc_sun_sunos4'
 310         HostArch_CPP='sparc'
 311         HostVendor_CPP='sun'
 312         HostOS_CPP='sunos4'
 313         ;;
 314 sparc-sun-solaris2*)
 315         HostPlatform=sparc-sun-solaris2
 316         TargetPlatform=sparc-sun-solaris2 #hack
 317         BuildPlatform=sparc-sun-solaris2 #hack
 318         HostPlatform_CPP='sparc_sun_solaris2'
 319         HostArch_CPP='sparc'
 320         HostVendor_CPP='sun'
 321         HostOS_CPP='solaris2'
 322         ;;
 323 *)
 324         echo "Unrecognised platform: $HostPlatform"
 325         exit 1
 326         ;;
 327 esac
 328 echo "Canonicalised to: $HostPlatform"
 329 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 330 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 331
 332 BuildPlatform_CPP=$HostPlatform_CPP
 333 TargetPlatform_CPP=$HostPlatform_CPP
 334 BuildArch_CPP=$HostArch_CPP
 335 TargetArch_CPP=$HostArch_CPP
 336 BuildOS_CPP=$HostOS_CPP
 337 HostOS_Full=$host_os
 338 TargetOS_CPP=$HostOS_CPP
 339 BuildVendor_CPP=$HostVendor_CPP
 340 TargetVendor_CPP=$HostVendor_CPP
 341
 342 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 343 dnl AC_SUBST(BuildPlatform)
 344
 345 AC_SUBST(HostPlatform)
 346 AC_SUBST(TargetPlatform)
 347 AC_SUBST(HostPlatform_CPP)
 348 dnl AC_SUBST(BuildPlatform_CPP)
 349 dnl AC_SUBST(TargetPlatform_CPP)
 350
 351 AC_SUBST(HostArch_CPP)
 352 dnl AC_SUBST(BuildArch_CPP)
 353 dnl AC_SUBST(TargetArch_CPP)
 354
 355 AC_SUBST(HostOS_CPP)
 356 AC_SUBST(HostOS_Full)
 357 dnl AC_SUBST(BuildOS_CPP)
 358 dnl AC_SUBST(TargetOS_CPP)
 359
 360 AC_SUBST(HostVendor_CPP)
 361 dnl AC_SUBST(BuildVendor_CPP)
 362 dnl AC_SUBST(TargetVendor_CPP)
 363
 364 AC_SUBST(exeext)
 365
 366 #
 367 # The native format for 'hardtop' (i.e., right kind of slashes on a Win32 box).
 368 # (but with b-slashes being escaped).
 369 case $HostPlatform in
 370   i386-unknown-mingw32 | i386-unknown-cygwin32)
 371         # get rid off /cygdrive/ prefix
 372         hardtop=`echo ${hardtop} | sed -e 's%^/cygdrive/\(.\)/%\1:/%' `
 373         hardtop_plat=`cygpath -w ${hardtop} | sed -e 's@\\\\@\\\\\\\\@g' `
 374         ;;
 375   *)
 376         hardtop_plat=${hardtop}
 377         ;;
 378 esac
 379 AC_SUBST(hardtop)
 380 AC_SUBST(hardtop_plat)
 381
 382 dnl --------------------------------------------------------------
 383 dnl * Project specific configuration options
 384 dnl --------------------------------------------------------------
 385 dnl What follows is a bunch of options that can either be configured
 386 dnl through command line options to the configure script or by
 387 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 388 dnl use either is considered a Feature.
 389
 390 dnl ** What command to use to compile compiler sources ?
 391 dnl --------------------------------------------------------------
 392
 393 AC_ARG_WITH(ghc,
 394 [  --with-ghc=<haskell compiler>
 395         Use a command different from 'ghc' to compile GHC-specific Haskell code
 396             (including GHC itself).
 397 ],
 398 [ WithGhc="$withval" ],
 399 [
 400   if test "$GHC" = ""; then
 401     AC_PATH_PROG(GHC,ghc)
 402   fi
 403   WithGhc=$GHC
 404 ]
 405 )
 406 AC_SUBST(WithGhc)
 407
 408 AC_ARG_WITH(hc,
 409 [  --with-hc=<haskell compiler>
 410         Use a command different from 'ghc' to compile generic Haskell code.
 411 ],
 412 [WithHc="$withval"],
 413 [WithHc=$WithGhc]
 414 )
 415 AC_SUBST(WithHc)
 416
 417 if test "$WithGhc" != ""; then
 418   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 419   AC_SUBST(GhcVersion)dnl
 420   AC_SUBST(GhcMajVersion)dnl
 421   AC_SUBST(GhcMinVersion)dnl
 422   AC_SUBST(GhcPatchLevel)dnl
 423 fi
 424
 425 AC_PATH_PROGS(NHC,nhc nhc98)
 426 AC_PATH_PROG(HBC,hbc)
 427
 428 dnl ** Which gcc to use?
 429 dnl --------------------------------------------------------------
 430 AC_ARG_WITH(gcc,
 431 [  --with-gcc=<gcc command>
 432         Use a different command instead of 'gcc' for the GNU C compiler.
 433 ],
 434 [WhatGccIsCalled="$withval"
 435  CC="$withval"],
 436 [WhatGccIsCalled="gcc"]
 437 )
 438 AC_SUBST(WhatGccIsCalled)
 439
 440 dnl ** Booting from .hc files?
 441 dnl --------------------------------------------------------------
 442 AC_ARG_ENABLE(hc-boot,
 443 [  --enable-hc-boot
 444         Boot the Glasgow Haskell Compiler from intermediate .hc files.
 445         (This option is mostly of interest to porters.)
 446 ],
 447 [BootingFromHc=YES],
 448 [BootingFromHc=NO]
 449 )
 450 AC_SUBST(BootingFromHc)
 451
 452 dnl ** Booting from unregisterised .hc files?
 453 dnl --------------------------------------------------------------
 454 AC_ARG_ENABLE(hc-boot-unregisterised,
 455 [  --enable-hc-boot-unregisterised
 456         With --enable-hc-boot, treat the intermediate .hc files as
 457         unregisterised rather than registerised code.
 458         (This option is mostly of interest to porters.)
 459 ],
 460 [BootingFromUnregisterisedHc=YES],
 461 [BootingFromUnregisterisedHc=NO]
 462 )
 463 AC_SUBST(BootingFromUnregisterisedHc)
 464
 465 if test "$BootingFromHc" = "NO"; then
 466 if test "$BootingFromUnregisterisedHc" = "YES"; then
 467 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 468 fi;
 469 fi;
 470
 471 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 472 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
 473 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 474 fi;
 475
 476 dnl ** Enable multi-thread friendly RTS?
 477 dnl --------------------------------------------------------------
 478 AC_ARG_ENABLE(threaded-rts,
 479 [  --enable-threaded-rts
 480         Support better interop with OS threads.
 481 ],
 482 [ThreadedRts=YES],
 483 [ThreadedRts=NO]
 484 )
 485 AC_SUBST(ThreadedRts)
 486
 487 dnl ** Enable the construction of Win32 DLLs?
 488 dnl --------------------------------------------------------------
 489 AC_ARG_ENABLE(win32-dlls,
 490 [  --enable-win32-dlls
 491         If on a Win32 platform running mingw32/cygwin, enable the
 492         construction of DLLs containing ghc-compiled code.
 493 ],
 494 [
 495 case $HostOS_CPP in
 496 cygwin32) ;;
 497 mingw32)  ;;
 498 *)    echo "Unrecognised win32 platform: $HostPlatform"
 499       exit 1
 500       ;;
 501 esac
 502 EnableWin32DLLs=YES
 503 ],
 504 [EnableWin32DLLs=NO]
 505 )
 506 AC_SUBST(EnableWin32DLLs)
 507 if test x"$EnableWin32DLLs" = "xYES" ; then
 508  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 509 fi
 510
 511 dnl ** Enable the building of the ObjectIO?
 512 dnl --------------------------------------------------------------
 513 AC_ARG_ENABLE(objectio,
 514 [  --enable-objectio
 515         Build ObjectIO, a portable GUI library for Haskell.
 516         (This option is only relevant when libraries are built.)
 517 ],
 518 [GhcLibsWithObjectIO=YES],
 519 [GhcLibsWithObjectIO=NO]
 520 )
 521 AC_SUBST(GhcLibsWithObjectIO)
 522
 523 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
 524 dnl --------------------------------------------------------------
 525 AC_ARG_ENABLE(hopengl,
 526 [  --enable-hopengl
 527         Build HOpenGL, a Haskell binding for OpenGL/GLUT, too.
 528         (NOTE: Work in progress, currently only GLUT is supported!)
 529 ],
 530 [GhcLibsWithHOpenGL=YES],
 531 [GhcLibsWithHOpenGL=NO]
 532 )
 533 AC_SUBST(GhcLibsWithHOpenGL)
 534
 535 dnl --------------------------------------------------------------
 536 dnl End of configure script option section
 537 dnl --------------------------------------------------------------
 538
 539
 540 dnl --------------------------------------------------------------
 541 dnl * General configuration checks
 542 dnl --------------------------------------------------------------
 543
 544 dnl ** does #! work?
 545 AC_SYS_INTERPRETER()
 546
 547 dnl ** look for `perl', but only in /bin on Windows
 548 case $HostOS_CPP in
 549 cygwin32|mingw32)
 550       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 551       if test -z "$PerlCmd"; then
 552          echo "You must install the version of Perl shipped with GHC"
 553          echo "(or a compatible one) in /bin."
 554          exit 1
 555       fi
 556    ;;
 557 *)
 558    AC_PATH_PROG(PerlCmd,perl)
 559    if test -z "$PerlCmd"; then
 560       echo "You must install perl before you can continue"
 561       echo "Perhaps it is already installed, but not in your PATH?"
 562       exit 1
 563    else
 564    FPTOOLS_CHECK_PERL_VERSION
 565    fi
 566    ;;
 567 esac
 568
 569 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 570 FPTOOLS_SHEBANG_PERL
 571
 572 dnl ** check for Python
 573 AC_PATH_PROG(PythonCmd,python)
 574
 575 dnl ** look for GCC and find out which version
 576 dnl     Figure out which C compiler to use.  Gcc is preferred.
 577 dnl     If gcc, make sure it's at least 2.1
 578 dnl
 579 AC_PROG_CC
 580 FPTOOLS_HAVE_GCC
 581 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
 582
 583 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 584 AC_PROG_CPP
 585
 586 dnl ** Without optimization some INLINE trickery fails for GHCi
 587 SRC_CC_OPTS="-O"
 588
 589 dnl ** Try to add -mno-cygwin to the C compiler options for mingw32 targets
 590 if test x"$TargetOS_CPP" = x"mingw32"; then
 591   FPTOOLS_CC_FLAG(-mno-cygwin,CC_SUPPORTS_MNO_CYGWIN)
 592   SRC_CC_OPTS="$CC_SUPPORTS_MNO_CYGWIN $SRC_CC_OPTS"
 593   CPPFLAGS="$CC_SUPPORTS_MNO_CYGWIN $CPPFLAGS"
 594 fi
 595 AC_SUBST(SRC_CC_OPTS)
 596
 597 dnl ** figure out how to do context diffs
 598 FPTOOLS_PROG_DIFF
 599
 600 dnl ** Find find command (for Win32's benefit)
 601 FPTOOLS_FIND_FIND
 602
 603 dnl ** look for a decent parser generator (bison preferred)
 604 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
 605 dnl  on the suitability of the 'yacc' returned.)
 606 FPTOOLS_PROG_YACCY
 607
 608 dnl ** Find lex command (lex or flex) - *doesn't* use autoconf's
 609 dnl    AC_PROG_LEX, since it doesn't actually check whether 'lex'
 610 dnl    exists if 'flex' doesn't.
 611 AC_PROG_LEX_STRICT
 612
 613 dnl ** figure out how to do a BSD-ish install
 614 AC_PROG_INSTALL
 615
 616 dnl If you can run configure, you certainly have /bin/sh
 617 AC_DEFINE(HAVE_BIN_SH)
 618
 619 dnl ** how to invoke `ar' and `ranlib'
 620 FPTOOLS_PROG_AR_AND_RANLIB
 621
 622 dnl ** Check to see whether ln -s works
 623 AC_PROG_LN_S
 624
 625
 626 dnl ** Find the path to sed
 627 AC_PATH_PROG(SedCmd,sed)
 628
 629
 630 dnl ** check for time command
 631 AC_PATH_PROG(TimeCmd,time)
 632
 633 dnl ** check for tar
 634 dnl   if GNU tar is named gtar, look for it first.
 635 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 636
 637 dnl ** check for gzip/compress
 638 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 639
 640 dnl ** check for jade/openjade & determine a working catalog
 641 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
 642 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl,
 643                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
 644 if test -z "$Catalog"; then
 645   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
 646 fi
 647 case $Catalog in
 648    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
 649         Catalog=
 650         ;;
 651    glafp*)
 652         case $HostOS_CPP in
 653            mingw32)
 654               Catalog=`cygpath -w $hardtop/$Catalog`
 655               ;;
 656            *) Catalog=$hardtop/$Catalog
 657               ;;
 658         esac
 659    ;;
 660 esac
 661 AC_SUBST(Catalog)
 662
 663 compress_nm=`basename $CompressCmd`
 664 if test x"$compress_nm" = xgzip; then
 665   CompressCmd="$CompressCmd -d"
 666   CompressSuffix="gz"
 667 else
 668   CompressSuffix="Z"
 669 fi
 670 AC_SUBST(CompressCmd)
 671 AC_SUBST(CompressSuffix)
 672
 673 dnl ** check for ghc-pkg command
 674 AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
 675
 676 AC_ARG_WITH(greencard,
 677 [  --with-greencard=<greencard compiler>
 678         Use a command different from 'green-card' to compile GreenCard files
 679 ],
 680 [
 681 GreencardCmd=$withval;
 682 FPTOOLS_GREENCARD(3.00)
 683 ]
 684 )
 685
 686 AC_ARG_ENABLE(src-tree-happy,
 687 [  --enable-src-tree-happy
 688         Build and use source tree (fptools/happy) version of happy.
 689 ],
 690 [UseSrcTreeHappy=YES],
 691 [UseSrcTreeHappy=NO]
 692 )
 693 dnl ** check for installed happy binary + version
 694 dnl    (don't do it if we're booting from .hc files though.)
 695 if test "$BootingFromHc" = "NO"; then
 696 FPTOOLS_HAPPY
 697 fi;
 698
 699 AC_ARG_ENABLE(src-tree-haddock,
 700 [  --enable-src-tree-haddock
 701         Build and use source tree (fptools/haddock) version of haddock.
 702 ],
 703 [UseSrcTreeHaddock=YES],
 704 [UseSrcTreeHaddock=NO]
 705 )
 706 dnl ** check for installed haddock
 707 FPTOOLS_HADDOCK
 708
 709 dnl --------------------------------------------------
 710 dnl ### program checking section ends here ###
 711 dnl --------------------------------------------------
 712
 713 dnl --------------------------------------------------
 714 dnl * Platform header file and syscall feature tests
 715 dnl ### checking the state of the local header files and syscalls ###
 716
 717 dnl ** check for full ANSI header (.h) files
 718 AC_HEADER_STDC
 719
 720 dnl ** check for specific header (.h) files that we are interested in
 721 AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h vfork.h bfd.h winsock.h pthread.h sys/uio.h)
 722 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
 723
 724 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 725 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 726
 727 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 728   HaveReadlineHeaders=YES
 729   AC_DEFINE(HAVE_READLINE_HEADERS,1)
 730 else
 731   HaveReadlineHeaders=NO
 732   AC_DEFINE(HAVE_READLINE_HEADERS,0)
 733 fi
 734 AC_SUBST(HaveReadlineHeaders)
 735
 736 dnl ** check for DOS include files
 737 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 738
 739 dnl ** check for Windows include files
 740 AC_CHECK_HEADERS(windows.h)
 741
 742 dnl ** check for OpenGL include files
 743 AC_CHECK_HEADERS(GL/gl.h)
 744
 745 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 746 AC_HEADER_TIME
 747
 748 dnl dynamic loading include files
 749 AC_CHECK_HEADERS(dlfcn.h dl.h)
 750
 751 dnl ** check for farcalloc (in bcc)
 752 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
 753
 754 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 755 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
 756
 757 dnl ** check for POSIX regex
 758 HavePosixRegex=NO
 759 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
 760 AC_SUBST(HavePosixRegex)
 761
 762 dnl ** how do we get a timezone name, and UTC offset ?
 763 AC_STRUCT_TIMEZONE
 764
 765 dnl ** what's the type of timezone?
 766 FPTOOLS_HAVE_TIMEZONE
 767 FPTOOLS_TYPE_TIMEZONE
 768
 769 dnl ** do we have altzone?
 770 FPTOOLS_ALTZONE
 771
 772 dnl ** does struct stat contain st_blksize?
 773 AC_STRUCT_ST_BLKSIZE
 774
 775 dnl ** do we have long longs?
 776 FPTOOLS_C_LONG_LONG
 777
 778 dnl ** check what fields struct msghdr contains
 779 FPTOOLS_MSGHDR_MSG_ACCRIGHTS
 780 FPTOOLS_MSGHDR_MSG_CONTROL
 781
 782 dnl ** what are the sizes of various types
 783 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 784 AC_CHECK_SIZEOF(char,               1)
 785 AC_CHECK_SIZEOF(double,             8)
 786 AC_CHECK_SIZEOF(float,              4)
 787 AC_CHECK_SIZEOF(int,                4)
 788 AC_CHECK_SIZEOF(long,               4)
 789 if test "$fptools_cv_have_long_long" = yes; then
 790 AC_CHECK_SIZEOF(long long,          8)
 791 fi
 792 AC_CHECK_SIZEOF(short,              2)
 793 AC_CHECK_SIZEOF(unsigned char,      1)
 794 AC_CHECK_SIZEOF(unsigned int,       4)
 795 AC_CHECK_SIZEOF(unsigned long,      4)
 796 if test "$fptools_cv_have_long_long" = yes; then
 797 AC_CHECK_SIZEOF(unsigned long long, 8)
 798 fi
 799 AC_CHECK_SIZEOF(unsigned short,     2)
 800 AC_CHECK_SIZEOF(void *,             4)
 801
 802 dnl ** what are alignment constraints on various types
 803 FPTOOLS_CHECK_ALIGNMENT(char)
 804 FPTOOLS_CHECK_ALIGNMENT(double)
 805 FPTOOLS_CHECK_ALIGNMENT(float)
 806 FPTOOLS_CHECK_ALIGNMENT(int)
 807 FPTOOLS_CHECK_ALIGNMENT(long)
 808 if test "$fptools_cv_have_long_long" = yes; then
 809 FPTOOLS_CHECK_ALIGNMENT(long long)
 810 fi
 811 FPTOOLS_CHECK_ALIGNMENT(short)
 812 FPTOOLS_CHECK_ALIGNMENT(unsigned char)
 813 FPTOOLS_CHECK_ALIGNMENT(unsigned int)
 814 FPTOOLS_CHECK_ALIGNMENT(unsigned long)
 815 if test "$fptools_cv_have_long_long" = yes; then
 816 FPTOOLS_CHECK_ALIGNMENT(unsigned long long)
 817 fi
 818 FPTOOLS_CHECK_ALIGNMENT(unsigned short)
 819 FPTOOLS_CHECK_ALIGNMENT(void *)
 820
 821 dnl ** map standard C types and ISO types to Haskell types
 822 FPTOOLS_CHECK_HTYPE(char)
 823 FPTOOLS_CHECK_HTYPE(signed char)
 824 FPTOOLS_CHECK_HTYPE(unsigned char)
 825 FPTOOLS_CHECK_HTYPE(short)
 826 FPTOOLS_CHECK_HTYPE(unsigned short)
 827 FPTOOLS_CHECK_HTYPE(int)
 828 FPTOOLS_CHECK_HTYPE(unsigned int)
 829 FPTOOLS_CHECK_HTYPE(long)
 830 FPTOOLS_CHECK_HTYPE(unsigned long)
 831 if test "$fptools_cv_have_long_long" = yes; then
 832 FPTOOLS_CHECK_HTYPE(long long)
 833 FPTOOLS_CHECK_HTYPE(unsigned long long)
 834 fi
 835 FPTOOLS_CHECK_HTYPE(float)
 836 FPTOOLS_CHECK_HTYPE(double)
 837 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
 838 FPTOOLS_CHECK_HTYPE(size_t)
 839 FPTOOLS_CHECK_HTYPE(wchar_t)
 840 dnl Int32 is a HACK for non-ISO C compilers
 841 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
 842 FPTOOLS_CHECK_HTYPE(clock_t)
 843 FPTOOLS_CHECK_HTYPE(time_t)
 844 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
 845 FPTOOLS_CHECK_HTYPE(ino_t)
 846 FPTOOLS_CHECK_HTYPE(mode_t)
 847 FPTOOLS_CHECK_HTYPE(off_t)
 848 FPTOOLS_CHECK_HTYPE(pid_t)
 849 FPTOOLS_CHECK_HTYPE(gid_t)
 850 FPTOOLS_CHECK_HTYPE(uid_t)
 851 FPTOOLS_CHECK_HTYPE(cc_t)
 852 FPTOOLS_CHECK_HTYPE(speed_t)
 853 FPTOOLS_CHECK_HTYPE(tcflag_t)
 854 FPTOOLS_CHECK_HTYPE(blkcnt_t)
 855 FPTOOLS_CHECK_HTYPE(nlink_t)
 856 FPTOOLS_CHECK_HTYPE(ssize_t)
 857 FPTOOLS_CHECK_HTYPE(rlim_t)
 858
 859 dnl ** Map OpenGL data types to Haskell types
 860 if test $GhcLibsWithHOpenGL = YES ; then
 861 FPTOOLS_CHECK_HTYPE(GLboolean)
 862 FPTOOLS_CHECK_HTYPE(GLbyte)
 863 FPTOOLS_CHECK_HTYPE(GLubyte)
 864 FPTOOLS_CHECK_HTYPE(GLshort)
 865 FPTOOLS_CHECK_HTYPE(GLushort)
 866 FPTOOLS_CHECK_HTYPE(GLint)
 867 FPTOOLS_CHECK_HTYPE(GLuint)
 868 FPTOOLS_CHECK_HTYPE(GLsizei)
 869 FPTOOLS_CHECK_HTYPE(GLenum)
 870 FPTOOLS_CHECK_HTYPE(GLbitfield)
 871 FPTOOLS_CHECK_HTYPE(GLfloat)
 872 FPTOOLS_CHECK_HTYPE(GLclampf)
 873 FPTOOLS_CHECK_HTYPE(GLdouble)
 874 FPTOOLS_CHECK_HTYPE(GLclampd)
 875 fi
 876
 877 FPTOOLS_CHECK_CCONSTS(E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV)
 878
 879 dnl ** can we open files in binary mode?
 880 FPTOOLS_O_BINARY
 881
 882 dnl ** check for GetModuleFileName and WinExec (windows only)
 883 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 884 dnl Doesn't work because the linker can't see the functions if
 885 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 886
 887 FPTOOLS_TRY_LINK_NOWARN(,[
 888 #if HAVE_WINDOWS_H
 889 #include <windows.h>
 890 #endif
 891 main() {
 892   WinExec("",0);
 893   exit(0);
 894 }
 895 ],
 896 [have_winexec=1],
 897 [have_winexec=0])
 898 if test "$have_winexec" = "1"; then
 899 AC_DEFINE(HAVE_WINEXEC)
 900 fi
 901
 902 FPTOOLS_TRY_LINK_NOWARN(,[
 903 #if HAVE_WINDOWS_H
 904 #include <windows.h>
 905 #endif
 906 main() {
 907   char* dir;
 908   GetModuleFileName((HMODULE)0,dir,0);
 909   exit(0);
 910 }
 911 ],
 912 [have_getmodulefilename=1],
 913 [have_getmodulefilename=0])
 914 if test "$have_getmodulefilename" = "1"; then
 915 AC_DEFINE(HAVE_GETMODULEFILENAME)
 916 fi
 917
 918 dnl ** check return type of signal handlers
 919 dnl Foo: assumes we can use prototypes.
 920 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 921 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 922 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 923 dnl #include <signal.h>
 924 dnl #ifdef signal
 925 dnl #undef signal
 926 dnl #endif
 927 dnl void (*signal (int, void (*)(int)))(int);
 928 dnl ],
 929 dnl [int i;],
 930 dnl ac_cv_type_signal_handler=void_int,
 931 dnl ac_cv_type_signal_handler=int_void)])
 932 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 933 dnl AC_DEFINE(VOID_INT_SIGNALS)
 934 dnl fi
 935
 936 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 937 AC_TYPE_SIGNAL
 938 if test "$ac_cv_type_signal" = void; then
 939 AC_DEFINE(VOID_INT_SIGNALS)
 940 fi
 941
 942 dnl ** check for more functions
 943 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 944 AC_CHECK_FUNCS(strcmp)
 945 AC_CHECK_FUNCS(realpath _fullpath)
 946 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 947 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 948 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 949 AC_CHECK_FUNCS(snprintf  _snprintf )
 950 AC_CHECK_FUNCS(popen     _popen )
 951 AC_CHECK_FUNCS(pclose    _pclose )
 952
 953
 954 dnl ** check for specific library functions that we are interested in
 955 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise vfork localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
 956
 957 dnl ** check whether this machine has gmp3 installed
 958 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 959   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
 960     HaveLibGmp=NO; LibGmp=not-installed))
 961 AC_SUBST(HaveLibGmp)
 962 AC_SUBST(LibGmp)
 963
 964 dnl ** (Mac OS X only: check for HaskellSupport.framework)
 965 HaveFrameworkHaskellSupport=NO
 966 if test $HostPlatform = "powerpc-apple-darwin"; then
 967  AC_MSG_CHECKING([for HaskellSupport.framework])
 968  save_libs="$LIBS"
 969  LIBS="-framework HaskellSupport"
 970  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
 971  if test $HaveFrameworkHaskellSupport = YES; then
 972   AC_DEFINE(HAVE_FRAMEWORK_HASKELLSUPPORT)
 973  fi;
 974  LIBS="$save_libs"
 975  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
 976 fi;
 977 AC_SUBST(HaveFrameworkHaskellSupport)
 978
 979 dnl ** check for mingwex library
 980 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
 981 AC_SUBST(HaveLibMingwEx)
 982
 983 if test $HaveLibMingwEx = YES ; then
 984   AC_DEFINE(HAVE_MINGWEX)
 985 fi
 986
 987 if test "$HaveLibGmp" = "NO"; then
 988 if test "$HostArch_CPP" = "ia64"; then
 989 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
 990 fi;
 991 fi;
 992
 993 dnl ** check whether this machine has GNU regex in libc.
 994 FPTOOLS_REGEX_IN_LIBC
 995
 996 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 997 dnl    the order of these tests matters: bfd needs liberty
 998 AC_CHECK_LIB(iberty, xmalloc)
 999 AC_CHECK_LIB(bfd,    bfd_init)
1000
1001 dnl ** check for readline, for Hugs and hslibs' Readline
1002 dnl ncurses supersedes termcap and curses, but for compatibility,
1003 dnl we have to check for all...
1004 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1005   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1006     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1007       HaveLibTermcap=NO; LibTermcap=not-installed)))
1008
1009 if test $HaveLibTermcap = YES ; then
1010   LIBS="-l$LibTermcap $LIBS"
1011   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1012 fi
1013
1014 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1015   AC_DEFINE(HAVE_READLINE_LIBS,1)
1016   LibsReadline="readline $LibTermcap"
1017 else
1018   AC_DEFINE(HAVE_READLINE_LIBS,0)
1019   LibsReadline=
1020 fi
1021 AC_SUBST(LibsReadline)
1022
1023 if test "$HaveLibReadline"; then
1024   AC_CHECK_LIB(readline, rl_erase_empty_line,
1025     [AC_DEFINE(HAVE_READLINE_4, 1)],
1026     [AC_DEFINE(HAVE_READLINE_4, 0)])
1027   AC_CHECK_LIB(readline, rl_free_undo_list,
1028     [AC_DEFINE(HAVE_READLINE_4_2, 1)],
1029     [AC_DEFINE(HAVE_READLINE_4_2, 0)])
1030 else
1031   AC_DEFINE(HAVE_READLINE_4, 0)
1032   AC_DEFINE(HAVE_READLINE_4_2, 0)
1033 fi
1034
1035 dnl ** check for math library
1036 FPTOOLS_CHECK_LIBM()
1037 AC_SUBST(LIBM)
1038
1039 case $HostOS_CPP in
1040 cygwin32) ;;
1041 mingw32)  ;;
1042 *) AC_PATH_XTRA() ;;
1043 esac
1044
1045 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1046 if test $GhcLibsWithHOpenGL = YES ; then
1047 FPTOOLS_HAVE_OPENGL
1048 fi
1049
1050 dnl ################################################################
1051 dnl Check for libraries
1052 dnl ################################################################
1053
1054 dnl ** check for libdl & RTLD_NEXT
1055
1056 dnl (Mac OS X only) ... but don't check if we already have the
1057 dnl HaskellSupport.framework
1058
1059 if test $HaveFrameworkHaskellSupport = YES; then
1060     HaveLibDL=NO
1061     HaveRtldNext=NO
1062     HaveRtldLocal=YES
1063     AC_DEFINE(HAVE_RTLDLOCAL)
1064     HaveRtldGlobal=YES
1065     AC_DEFINE(HAVE_RTLDGLOBAL)
1066     HaveRtldNow=YES
1067     AC_DEFINE(HAVE_RTLDNOW)
1068     AC_SUBST(HaveLibDL)
1069     AC_SUBST(HaveRtldNext)
1070     AC_SUBST(HaveRtldLocal)
1071     AC_SUBST(HaveRtldGlobal)
1072     AC_SUBST(HaveRtldNow)
1073 else
1074     AC_CHECK_LIB(dl, dlopen,
1075         [HaveLibDL=YES
1076          AC_DEFINE(HAVE_LIBDL)
1077          LIBS="$LIBS -ldl"],
1078         [HaveLibDL=NO])
1079     AC_CHECK_FUNCS(dlopen)
1080     AC_SUBST(HaveLibDL)
1081
1082     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1083     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1084     AC_EGREP_CPP(yes,
1085     [
1086      #include <dlfcn.h>
1087      #ifdef RTLD_NEXT
1088             yes
1089      #endif
1090     ], [
1091       AC_MSG_RESULT(yes)
1092       AC_DEFINE(HAVE_RTLDNEXT)
1093       HaveRtldNext=YES
1094     ], [
1095       AC_MSG_RESULT(no)
1096       HaveRtldNext=NO
1097       ])
1098     AC_SUBST(HaveRtldNext)
1099
1100     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1101     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1102     AC_EGREP_CPP(yes,
1103     [
1104      #include <dlfcn.h>
1105      #ifdef RTLD_LOCAL
1106             yes
1107      #endif
1108     ], [
1109       AC_MSG_RESULT(yes)
1110       AC_DEFINE(HAVE_RTLDLOCAL)
1111       HaveRtldLocal=YES
1112     ], [
1113       AC_MSG_RESULT(no)
1114       HaveRtldLocal=NO
1115       ])
1116     AC_SUBST(HaveRtldLocal)
1117
1118     dnl ** RTLD_GLOBAL isn't available on openbsd
1119     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1120     AC_EGREP_CPP(yes,
1121     [
1122      #include <dlfcn.h>
1123      #ifdef RTLD_GLOBAL
1124             yes
1125      #endif
1126     ], [
1127       AC_MSG_RESULT(yes)
1128       AC_DEFINE(HAVE_RTLDGLOBAL)
1129       HaveRtldGlobal=YES
1130     ], [
1131       AC_MSG_RESULT(no)
1132       HaveRtldGlobal=NO
1133       ])
1134     AC_SUBST(HaveRtldGlobal)
1135
1136     dnl ** RTLD_NOW isn't available on openbsd
1137     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1138     AC_EGREP_CPP(yes,
1139     [
1140      #include <dlfcn.h>
1141      #ifdef RTLD_NOW
1142             yes
1143      #endif
1144     ], [
1145       AC_MSG_RESULT(yes)
1146       AC_DEFINE(HAVE_RTLDNOW)
1147       HaveRtldNow=YES
1148     ], [
1149       AC_MSG_RESULT(no)
1150       HaveRtldNow=NO
1151       ])
1152     AC_SUBST(HaveRtldNow)
1153 fi
1154
1155 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1156
1157 dnl ---------- usleep ----------
1158 dnl --- stolen from guile configure ---
1159 dnl --- FIXME: /usr/include/unistd.h can't be right?
1160
1161 ### On some systems usleep has no return value.  If it does have one,
1162 ### we'd like to return it; otherwise, we'll fake it.
1163 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1164   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1165                    /usr/include/unistd.h,
1166                    [cv_func_usleep_return_type=void],
1167                    [cv_func_usleep_return_type=int])])
1168 case "$cv_func_usleep_return_type" in
1169   "void" )
1170     AC_DEFINE(USLEEP_RETURNS_VOID, 1,
1171       [Define if the system headers declare usleep to return void.])
1172   ;;
1173 esac
1174
1175 dnl --------------------------------------------------
1176 dnl * test for in_addr_t
1177 dnl --------------------------------------------------
1178 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1179 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1180  [ AC_DEFINE(HAVE_IN_ADDR_T) AC_MSG_RESULT(yes) ],
1181  AC_MSG_RESULT(no))
1182
1183 dnl --------------------------------------------------
1184 dnl * test for Linux sendfile(2)
1185 dnl --------------------------------------------------
1186 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1187 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1188  [ AC_DEFINE(HAVE_LINUX_SENDFILE) AC_MSG_RESULT(yes) ],
1189  AC_MSG_RESULT(no))
1190
1191 dnl --------------------------------------------------
1192 dnl * test for BSD sendfile(2)
1193 dnl --------------------------------------------------
1194 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1195 AC_EGREP_HEADER(sendfile, sys/socket.h,
1196  [ AC_DEFINE(HAVE_BSD_SENDFILE) AC_MSG_RESULT(yes) ],
1197  AC_MSG_RESULT(no))
1198
1199 dnl --------------------------------------------------
1200 dnl * test for GTK+
1201 dnl --------------------------------------------------
1202
1203 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1204 if test "$GTK_CONFIG" != ""; then
1205    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1206         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1207     ])
1208     GTK_VERSION=$fptools_cv_gtk_version
1209 else
1210     GTK_VERSION=
1211 fi
1212
1213 case $fptools_cv_gtk_version in
1214   1.[[23]].*) ;;
1215   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1216      GTK_CONFIG=
1217      ;;
1218 esac
1219
1220 AC_SUBST(GTK_CONFIG)
1221 AC_SUBST(GTK_VERSION)
1222
1223 dnl --------------------------------------------------
1224 dnl * Miscellaneous feature tests
1225 dnl --------------------------------------------------
1226
1227 dnl ** can we get alloca?
1228 AC_FUNC_ALLOCA
1229
1230 dnl ** determine whether or not const works
1231 AC_C_CONST
1232
1233 dnl ** determine whether ANSI-function prototypes work?
1234 AC_C_PROTOTYPES
1235
1236 dnl ** are we big endian?
1237 AC_C_BIGENDIAN
1238 # Allay users' general fear of warnings of any kind.
1239 errprint(fptools configure script wizard sez: autoconf-2.50 or later should produce no warnings
1240 )
1241 errprint(if you are using 2.13 or earlier, you may get a (harmless) warning message.
1242 )
1243
1244 dnl ** check for leading underscores in symbol names
1245 FPTOOLS_UNDERSCORE
1246
1247 dnl ** check for ld, and whether ld has -x option
1248 AC_PATH_PROG(LdCmdRaw, ld)
1249 case $HostOS_CPP in
1250  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1251            ;;
1252  *) LdCmd=${LdCmdRaw}
1253     ;;
1254 esac
1255 AC_SUBST(LdCmd)
1256 FPTOOLS_LD_X
1257
1258 AC_MSG_CHECKING([for SIGPOLL])
1259 AC_EGREP_CPP(we_have_sigpoll,
1260 [#include <signal.h>
1261 #ifdef SIGPOLL
1262 we_have_sigpoll
1263 #endif
1264 ], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
1265 AC_MSG_RESULT([$haveSIGPOLL])
1266
1267 AC_MSG_CHECKING(for _SC_GETGR_R_SIZE_MAX)
1268 AC_EGREP_CPP(we_have_that_sysconf_thing,
1269 [
1270 #include <unistd.h>
1271 #ifdef _SC_GETGR_R_SIZE_MAX
1272 we_have_that_sysconf_thing
1273 #endif
1274 ], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX), AC_MSG_RESULT(no))
1275
1276 AC_MSG_CHECKING(for _SC_GETPW_R_SIZE_MAX)
1277 AC_EGREP_CPP(we_have_that_sysconf_thing,
1278 [
1279 #include <unistd.h>
1280 #ifdef _SC_GETPW_R_SIZE_MAX
1281 we_have_that_sysconf_thing
1282 #endif
1283 ], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX), AC_MSG_RESULT(no))
1284
1285 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )