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="$CompressCmd -d"
 666   CompressSuffix="gz"
 667 else
 668   CompressSuffix="Z"
 669 fi
 670 AC_SUBST(CompressCmd)
 671 AC_SUBST(CompressSuffix)
 672
 673 AC_ARG_ENABLE(src-tree-happy,
 674 [  --enable-src-tree-happy
 675         Build and use source tree (fptools/happy) version of happy.
 676 ],
 677 [UseSrcTreeHappy=YES],
 678 [UseSrcTreeHappy=NO]
 679 )
 680 dnl ** check for installed happy binary + version
 681 dnl    (don't do it if we're booting from .hc files though.)
 682 if test "$BootingFromHc" = "NO"; then
 683 FPTOOLS_HAPPY
 684 fi;
 685
 686 AC_ARG_ENABLE(src-tree-haddock,
 687 [  --enable-src-tree-haddock
 688         Build and use source tree (fptools/haddock) version of haddock.
 689 ],
 690 [UseSrcTreeHaddock=YES],
 691 [UseSrcTreeHaddock=NO]
 692 )
 693 dnl ** check for installed haddock
 694 FPTOOLS_HADDOCK
 695
 696 dnl --------------------------------------------------
 697 dnl ### program checking section ends here ###
 698 dnl --------------------------------------------------
 699
 700 dnl --------------------------------------------------
 701 dnl * Platform header file and syscall feature tests
 702 dnl ### checking the state of the local header files and syscalls ###
 703
 704 dnl ** check for full ANSI header (.h) files
 705 AC_HEADER_STDC
 706
 707 dnl ** check for specific header (.h) files that we are interested in
 708 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)
 709 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
 710
 711 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 712 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 713
 714 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 715   HaveReadlineHeaders=YES
 716   AC_DEFINE(HAVE_READLINE_HEADERS,1)
 717 else
 718   HaveReadlineHeaders=NO
 719   AC_DEFINE(HAVE_READLINE_HEADERS,0)
 720 fi
 721 AC_SUBST(HaveReadlineHeaders)
 722
 723 dnl ** check for DOS include files
 724 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 725
 726 dnl ** check for Windows include files
 727 AC_CHECK_HEADERS(windows.h)
 728
 729 dnl ** check for OpenGL include files
 730 AC_CHECK_HEADERS(GL/gl.h)
 731
 732 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 733 AC_HEADER_TIME
 734
 735 dnl dynamic loading include files
 736 AC_CHECK_HEADERS(dlfcn.h dl.h)
 737
 738 dnl ** check for farcalloc (in bcc)
 739 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
 740
 741 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 742 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
 743
 744 dnl ** check for POSIX regex
 745 HavePosixRegex=NO
 746 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
 747 AC_SUBST(HavePosixRegex)
 748
 749 dnl ** how do we get a timezone name, and UTC offset ?
 750 AC_STRUCT_TIMEZONE
 751
 752 dnl ** what's the type of timezone?
 753 FPTOOLS_HAVE_TIMEZONE
 754 FPTOOLS_TYPE_TIMEZONE
 755
 756 dnl ** do we have altzone?
 757 FPTOOLS_ALTZONE
 758
 759 dnl ** does struct stat contain st_blksize?
 760 AC_STRUCT_ST_BLKSIZE
 761
 762 dnl ** do we have long longs?
 763 FPTOOLS_C_LONG_LONG
 764
 765 dnl ** check what fields struct msghdr contains
 766 FPTOOLS_MSGHDR_MSG_ACCRIGHTS
 767 FPTOOLS_MSGHDR_MSG_CONTROL
 768
 769 dnl ** what are the sizes of various types
 770 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 771 AC_CHECK_SIZEOF(char,               1)
 772 AC_CHECK_SIZEOF(double,             8)
 773 AC_CHECK_SIZEOF(float,              4)
 774 AC_CHECK_SIZEOF(int,                4)
 775 AC_CHECK_SIZEOF(long,               4)
 776 if test "$fptools_cv_have_long_long" = yes; then
 777 AC_CHECK_SIZEOF(long long,          8)
 778 fi
 779 AC_CHECK_SIZEOF(short,              2)
 780 AC_CHECK_SIZEOF(unsigned char,      1)
 781 AC_CHECK_SIZEOF(unsigned int,       4)
 782 AC_CHECK_SIZEOF(unsigned long,      4)
 783 if test "$fptools_cv_have_long_long" = yes; then
 784 AC_CHECK_SIZEOF(unsigned long long, 8)
 785 fi
 786 AC_CHECK_SIZEOF(unsigned short,     2)
 787 AC_CHECK_SIZEOF(void *,             4)
 788
 789 dnl ** what are alignment constraints on various types
 790 FPTOOLS_CHECK_ALIGNMENT(char)
 791 FPTOOLS_CHECK_ALIGNMENT(double)
 792 FPTOOLS_CHECK_ALIGNMENT(float)
 793 FPTOOLS_CHECK_ALIGNMENT(int)
 794 FPTOOLS_CHECK_ALIGNMENT(long)
 795 if test "$fptools_cv_have_long_long" = yes; then
 796 FPTOOLS_CHECK_ALIGNMENT(long long)
 797 fi
 798 FPTOOLS_CHECK_ALIGNMENT(short)
 799 FPTOOLS_CHECK_ALIGNMENT(unsigned char)
 800 FPTOOLS_CHECK_ALIGNMENT(unsigned int)
 801 FPTOOLS_CHECK_ALIGNMENT(unsigned long)
 802 if test "$fptools_cv_have_long_long" = yes; then
 803 FPTOOLS_CHECK_ALIGNMENT(unsigned long long)
 804 fi
 805 FPTOOLS_CHECK_ALIGNMENT(unsigned short)
 806 FPTOOLS_CHECK_ALIGNMENT(void *)
 807
 808 dnl ** map standard C types and ISO types to Haskell types
 809 FPTOOLS_CHECK_HTYPE(char)
 810 FPTOOLS_CHECK_HTYPE(signed char)
 811 FPTOOLS_CHECK_HTYPE(unsigned char)
 812 FPTOOLS_CHECK_HTYPE(short)
 813 FPTOOLS_CHECK_HTYPE(unsigned short)
 814 FPTOOLS_CHECK_HTYPE(int)
 815 FPTOOLS_CHECK_HTYPE(unsigned int)
 816 FPTOOLS_CHECK_HTYPE(long)
 817 FPTOOLS_CHECK_HTYPE(unsigned long)
 818 if test "$fptools_cv_have_long_long" = yes; then
 819 FPTOOLS_CHECK_HTYPE(long long)
 820 FPTOOLS_CHECK_HTYPE(unsigned long long)
 821 fi
 822 FPTOOLS_CHECK_HTYPE(float)
 823 FPTOOLS_CHECK_HTYPE(double)
 824 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
 825 FPTOOLS_CHECK_HTYPE(size_t)
 826 FPTOOLS_CHECK_HTYPE(wchar_t)
 827 dnl Int32 is a HACK for non-ISO C compilers
 828 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
 829 FPTOOLS_CHECK_HTYPE(clock_t)
 830 FPTOOLS_CHECK_HTYPE(time_t)
 831 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
 832 FPTOOLS_CHECK_HTYPE(ino_t)
 833 FPTOOLS_CHECK_HTYPE(mode_t)
 834 FPTOOLS_CHECK_HTYPE(off_t)
 835 FPTOOLS_CHECK_HTYPE(pid_t)
 836 FPTOOLS_CHECK_HTYPE(gid_t)
 837 FPTOOLS_CHECK_HTYPE(uid_t)
 838 FPTOOLS_CHECK_HTYPE(cc_t)
 839 FPTOOLS_CHECK_HTYPE(speed_t)
 840 FPTOOLS_CHECK_HTYPE(tcflag_t)
 841 FPTOOLS_CHECK_HTYPE(blkcnt_t)
 842 FPTOOLS_CHECK_HTYPE(nlink_t)
 843 FPTOOLS_CHECK_HTYPE(ssize_t)
 844 FPTOOLS_CHECK_HTYPE(rlim_t)
 845
 846 dnl ** Map OpenGL data types to Haskell types
 847 if test $GhcLibsWithHOpenGL = YES ; then
 848 FPTOOLS_CHECK_HTYPE(GLboolean)
 849 FPTOOLS_CHECK_HTYPE(GLbyte)
 850 FPTOOLS_CHECK_HTYPE(GLubyte)
 851 FPTOOLS_CHECK_HTYPE(GLshort)
 852 FPTOOLS_CHECK_HTYPE(GLushort)
 853 FPTOOLS_CHECK_HTYPE(GLint)
 854 FPTOOLS_CHECK_HTYPE(GLuint)
 855 FPTOOLS_CHECK_HTYPE(GLsizei)
 856 FPTOOLS_CHECK_HTYPE(GLenum)
 857 FPTOOLS_CHECK_HTYPE(GLbitfield)
 858 FPTOOLS_CHECK_HTYPE(GLfloat)
 859 FPTOOLS_CHECK_HTYPE(GLclampf)
 860 FPTOOLS_CHECK_HTYPE(GLdouble)
 861 FPTOOLS_CHECK_HTYPE(GLclampd)
 862 fi
 863
 864 FPTOOLS_CHECK_CCONSTS(E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV)
 865
 866 dnl ** can we open files in binary mode?
 867 FPTOOLS_O_BINARY
 868
 869 dnl ** check for GetModuleFileName and WinExec (windows only)
 870 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 871 dnl Doesn't work because the linker can't see the functions if
 872 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 873
 874 FPTOOLS_TRY_LINK_NOWARN(,[
 875 #if HAVE_WINDOWS_H
 876 #include <windows.h>
 877 #endif
 878 main() {
 879   WinExec("",0);
 880   exit(0);
 881 }
 882 ],
 883 [have_winexec=1],
 884 [have_winexec=0])
 885 if test "$have_winexec" = "1"; then
 886 AC_DEFINE(HAVE_WINEXEC)
 887 fi
 888
 889 FPTOOLS_TRY_LINK_NOWARN(,[
 890 #if HAVE_WINDOWS_H
 891 #include <windows.h>
 892 #endif
 893 main() {
 894   char* dir;
 895   GetModuleFileName((HMODULE)0,dir,0);
 896   exit(0);
 897 }
 898 ],
 899 [have_getmodulefilename=1],
 900 [have_getmodulefilename=0])
 901 if test "$have_getmodulefilename" = "1"; then
 902 AC_DEFINE(HAVE_GETMODULEFILENAME)
 903 fi
 904
 905 dnl ** check return type of signal handlers
 906 dnl Foo: assumes we can use prototypes.
 907 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 908 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 909 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 910 dnl #include <signal.h>
 911 dnl #ifdef signal
 912 dnl #undef signal
 913 dnl #endif
 914 dnl void (*signal (int, void (*)(int)))(int);
 915 dnl ],
 916 dnl [int i;],
 917 dnl ac_cv_type_signal_handler=void_int,
 918 dnl ac_cv_type_signal_handler=int_void)])
 919 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 920 dnl AC_DEFINE(VOID_INT_SIGNALS)
 921 dnl fi
 922
 923 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 924 AC_TYPE_SIGNAL
 925 if test "$ac_cv_type_signal" = void; then
 926 AC_DEFINE(VOID_INT_SIGNALS)
 927 fi
 928
 929 dnl ** check for more functions
 930 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 931 AC_CHECK_FUNCS(strcmp)
 932 AC_CHECK_FUNCS(realpath _fullpath)
 933 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 934 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 935 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 936 AC_CHECK_FUNCS(snprintf  _snprintf )
 937 AC_CHECK_FUNCS(popen     _popen )
 938 AC_CHECK_FUNCS(pclose    _pclose )
 939
 940
 941 dnl ** check for specific library functions that we are interested in
 942 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)
 943
 944 dnl ** check whether this machine has gmp3 installed
 945 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 946   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
 947     HaveLibGmp=NO; LibGmp=not-installed))
 948 AC_SUBST(HaveLibGmp)
 949 AC_SUBST(LibGmp)
 950
 951 dnl ** (Mac OS X only: check for HaskellSupport.framework)
 952 HaveFrameworkHaskellSupport=NO
 953 if test $HostPlatform = "powerpc-apple-darwin"; then
 954  AC_MSG_CHECKING([for HaskellSupport.framework])
 955  save_libs="$LIBS"
 956  LIBS="-framework HaskellSupport"
 957  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
 958  if test $HaveFrameworkHaskellSupport = YES; then
 959   AC_DEFINE(HAVE_FRAMEWORK_HASKELLSUPPORT)
 960  fi;
 961  LIBS="$save_libs"
 962  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
 963 fi;
 964 AC_SUBST(HaveFrameworkHaskellSupport)
 965
 966 dnl ** check for mingwex library
 967 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
 968 AC_SUBST(HaveLibMingwEx)
 969
 970 if test $HaveLibMingwEx = YES ; then
 971   AC_DEFINE(HAVE_MINGWEX)
 972 fi
 973
 974 if test "$HaveLibGmp" = "NO"; then
 975 if test "$HostArch_CPP" = "ia64"; then
 976 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
 977 fi;
 978 fi;
 979
 980 dnl ** check whether this machine has GNU regex in libc.
 981 FPTOOLS_REGEX_IN_LIBC
 982
 983 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 984 dnl    the order of these tests matters: bfd needs liberty
 985 AC_CHECK_LIB(iberty, xmalloc)
 986 AC_CHECK_LIB(bfd,    bfd_init)
 987
 988 dnl ** check for readline, for Hugs and hslibs' Readline
 989 dnl ncurses supersedes termcap and curses, but for compatibility,
 990 dnl we have to check for all...
 991 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
 992   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
 993     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
 994       HaveLibTermcap=NO; LibTermcap=not-installed)))
 995
 996 if test $HaveLibTermcap = YES ; then
 997   LIBS="-l$LibTermcap $LIBS"
 998   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
 999 fi
1000
1001 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1002   AC_DEFINE(HAVE_READLINE_LIBS,1)
1003   LibsReadline="readline $LibTermcap"
1004 else
1005   AC_DEFINE(HAVE_READLINE_LIBS,0)
1006   LibsReadline=
1007 fi
1008 AC_SUBST(LibsReadline)
1009
1010 if test "$HaveLibReadline"; then
1011   AC_CHECK_LIB(readline, rl_erase_empty_line,
1012     [AC_DEFINE(HAVE_READLINE_4, 1)],
1013     [AC_DEFINE(HAVE_READLINE_4, 0)])
1014   AC_CHECK_LIB(readline, rl_free_undo_list,
1015     [AC_DEFINE(HAVE_READLINE_4_2, 1)],
1016     [AC_DEFINE(HAVE_READLINE_4_2, 0)])
1017 else
1018   AC_DEFINE(HAVE_READLINE_4, 0)
1019   AC_DEFINE(HAVE_READLINE_4_2, 0)
1020 fi
1021
1022 dnl ** check for math library
1023 FPTOOLS_CHECK_LIBM()
1024 AC_SUBST(LIBM)
1025
1026 case $HostOS_CPP in
1027 cygwin32) ;;
1028 mingw32)  ;;
1029 *) AC_PATH_XTRA() ;;
1030 esac
1031
1032 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1033 if test $GhcLibsWithHOpenGL = YES ; then
1034 FPTOOLS_HAVE_OPENGL
1035 fi
1036
1037 dnl ################################################################
1038 dnl Check for libraries
1039 dnl ################################################################
1040
1041 dnl ** check for libdl & RTLD_NEXT
1042
1043 dnl (Mac OS X only) ... but don't check if we already have the
1044 dnl HaskellSupport.framework
1045
1046 if test $HaveFrameworkHaskellSupport = YES; then
1047     HaveLibDL=NO
1048     HaveRtldNext=NO
1049     HaveRtldLocal=YES
1050     AC_DEFINE(HAVE_RTLDLOCAL)
1051     HaveRtldGlobal=YES
1052     AC_DEFINE(HAVE_RTLDGLOBAL)
1053     HaveRtldNow=YES
1054     AC_DEFINE(HAVE_RTLDNOW)
1055     AC_SUBST(HaveLibDL)
1056     AC_SUBST(HaveRtldNext)
1057     AC_SUBST(HaveRtldLocal)
1058     AC_SUBST(HaveRtldGlobal)
1059     AC_SUBST(HaveRtldNow)
1060 else
1061     AC_CHECK_LIB(dl, dlopen,
1062         [HaveLibDL=YES
1063          AC_DEFINE(HAVE_LIBDL)
1064          LIBS="$LIBS -ldl"],
1065         [HaveLibDL=NO])
1066     AC_CHECK_FUNCS(dlopen)
1067     AC_SUBST(HaveLibDL)
1068
1069     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1070     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1071     AC_EGREP_CPP(yes,
1072     [
1073      #include <dlfcn.h>
1074      #ifdef RTLD_NEXT
1075             yes
1076      #endif
1077     ], [
1078       AC_MSG_RESULT(yes)
1079       AC_DEFINE(HAVE_RTLDNEXT)
1080       HaveRtldNext=YES
1081     ], [
1082       AC_MSG_RESULT(no)
1083       HaveRtldNext=NO
1084       ])
1085     AC_SUBST(HaveRtldNext)
1086
1087     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1088     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1089     AC_EGREP_CPP(yes,
1090     [
1091      #include <dlfcn.h>
1092      #ifdef RTLD_LOCAL
1093             yes
1094      #endif
1095     ], [
1096       AC_MSG_RESULT(yes)
1097       AC_DEFINE(HAVE_RTLDLOCAL)
1098       HaveRtldLocal=YES
1099     ], [
1100       AC_MSG_RESULT(no)
1101       HaveRtldLocal=NO
1102       ])
1103     AC_SUBST(HaveRtldLocal)
1104
1105     dnl ** RTLD_GLOBAL isn't available on openbsd
1106     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1107     AC_EGREP_CPP(yes,
1108     [
1109      #include <dlfcn.h>
1110      #ifdef RTLD_GLOBAL
1111             yes
1112      #endif
1113     ], [
1114       AC_MSG_RESULT(yes)
1115       AC_DEFINE(HAVE_RTLDGLOBAL)
1116       HaveRtldGlobal=YES
1117     ], [
1118       AC_MSG_RESULT(no)
1119       HaveRtldGlobal=NO
1120       ])
1121     AC_SUBST(HaveRtldGlobal)
1122
1123     dnl ** RTLD_NOW isn't available on openbsd
1124     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1125     AC_EGREP_CPP(yes,
1126     [
1127      #include <dlfcn.h>
1128      #ifdef RTLD_NOW
1129             yes
1130      #endif
1131     ], [
1132       AC_MSG_RESULT(yes)
1133       AC_DEFINE(HAVE_RTLDNOW)
1134       HaveRtldNow=YES
1135     ], [
1136       AC_MSG_RESULT(no)
1137       HaveRtldNow=NO
1138       ])
1139     AC_SUBST(HaveRtldNow)
1140 fi
1141
1142 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1143
1144 dnl ---------- usleep ----------
1145 dnl --- stolen from guile configure ---
1146 dnl --- FIXME: /usr/include/unistd.h can't be right?
1147
1148 ### On some systems usleep has no return value.  If it does have one,
1149 ### we'd like to return it; otherwise, we'll fake it.
1150 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1151   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1152                    /usr/include/unistd.h,
1153                    [cv_func_usleep_return_type=void],
1154                    [cv_func_usleep_return_type=int])])
1155 case "$cv_func_usleep_return_type" in
1156   "void" )
1157     AC_DEFINE(USLEEP_RETURNS_VOID, 1,
1158       [Define if the system headers declare usleep to return void.])
1159   ;;
1160 esac
1161
1162 dnl --------------------------------------------------
1163 dnl * test for in_addr_t
1164 dnl --------------------------------------------------
1165 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1166 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1167  [ AC_DEFINE(HAVE_IN_ADDR_T) AC_MSG_RESULT(yes) ],
1168  AC_MSG_RESULT(no))
1169
1170 dnl --------------------------------------------------
1171 dnl * test for Linux sendfile(2)
1172 dnl --------------------------------------------------
1173 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1174 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1175  [ AC_DEFINE(HAVE_LINUX_SENDFILE) AC_MSG_RESULT(yes) ],
1176  AC_MSG_RESULT(no))
1177
1178 dnl --------------------------------------------------
1179 dnl * test for BSD sendfile(2)
1180 dnl --------------------------------------------------
1181 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1182 AC_EGREP_HEADER(sendfile, sys/socket.h,
1183  [ AC_DEFINE(HAVE_BSD_SENDFILE) AC_MSG_RESULT(yes) ],
1184  AC_MSG_RESULT(no))
1185
1186 dnl --------------------------------------------------
1187 dnl * test for GTK+
1188 dnl --------------------------------------------------
1189
1190 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1191 if test "$GTK_CONFIG" != ""; then
1192    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1193         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1194     ])
1195     GTK_VERSION=$fptools_cv_gtk_version
1196 else
1197     GTK_VERSION=
1198 fi
1199
1200 case $fptools_cv_gtk_version in
1201   1.[[23]].*) ;;
1202   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1203      GTK_CONFIG=
1204      ;;
1205 esac
1206
1207 AC_SUBST(GTK_CONFIG)
1208 AC_SUBST(GTK_VERSION)
1209
1210 dnl --------------------------------------------------
1211 dnl * Miscellaneous feature tests
1212 dnl --------------------------------------------------
1213
1214 dnl ** can we get alloca?
1215 AC_FUNC_ALLOCA
1216
1217 dnl ** determine whether or not const works
1218 AC_C_CONST
1219
1220 dnl ** determine whether ANSI-function prototypes work?
1221 AC_C_PROTOTYPES
1222
1223 dnl ** are we big endian?
1224 AC_C_BIGENDIAN
1225 # Allay users' general fear of warnings of any kind.
1226 errprint(fptools configure script wizard sez: autoconf-2.50 or later should produce no warnings
1227 )
1228 errprint(if you are using 2.13 or earlier, you may get a (harmless) warning message.
1229 )
1230
1231 dnl ** check for leading underscores in symbol names
1232 FPTOOLS_UNDERSCORE
1233
1234 dnl ** check for ld, and whether ld has -x option
1235 AC_PATH_PROG(LdCmdRaw, ld)
1236 case $HostOS_CPP in
1237  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1238            ;;
1239  *) LdCmd=${LdCmdRaw}
1240     ;;
1241 esac
1242 AC_SUBST(LdCmd)
1243 FPTOOLS_LD_X
1244
1245 AC_MSG_CHECKING([for SIGPOLL])
1246 AC_EGREP_CPP(we_have_sigpoll,
1247 [#include <signal.h>
1248 #ifdef SIGPOLL
1249 we_have_sigpoll
1250 #endif
1251 ], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
1252 AC_MSG_RESULT([$haveSIGPOLL])
1253
1254 AC_MSG_CHECKING(for _SC_GETGR_R_SIZE_MAX)
1255 AC_EGREP_CPP(we_have_that_sysconf_thing,
1256 [
1257 #include <unistd.h>
1258 #ifdef _SC_GETGR_R_SIZE_MAX
1259 we_have_that_sysconf_thing
1260 #endif
1261 ], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX), AC_MSG_RESULT(no))
1262
1263 AC_MSG_CHECKING(for _SC_GETPW_R_SIZE_MAX)
1264 AC_EGREP_CPP(we_have_that_sysconf_thing,
1265 [
1266 #include <unistd.h>
1267 #ifdef _SC_GETPW_R_SIZE_MAX
1268 we_have_that_sysconf_thing
1269 #endif
1270 ], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX), AC_MSG_RESULT(no))
1271
1272 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )