configure.ac

   1 dnl == autoconf source for the Glasgow FP tools ==
   2 dnl (run "grep '^dnl \*' configure.ac | 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, 1994-2004
   7 #
   8 # Configure script template for the Glasgow functional programming tools
   9 #
  10 # Process with 'autoreconf' 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 AC_INIT([The Glorious Glasgow Haskell Compilation System], [6.7], [glasgow-haskell-bugs@haskell.org], [ghc])
  17
  18 if test ! -f mk/config.h.in; then
  19    echo "mk/config.h.in doesn't exist: perhaps you haven't run 'autoreconf'?"
  20    exit 1
  21 fi
  22
  23 FP_SETUP_PROJECT_VERSION
  24
  25 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
  26 AC_SUBST([release], [1])
  27
  28 # First off, a distrib sanity check..
  29 AC_CONFIG_SRCDIR([mk/config.mk.in])
  30
  31 dnl * We require autoconf version 2.52
  32 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
  33 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
  34 AC_PREREQ([2.52])
  35
  36 dnl * Declare subdirectories that have a private configure script
  37 dnl
  38 dnl After the toplevel configuration is complete, the script will recurse into
  39 dnl these subdirectories if they exist. The use of a cache file makes repeated
  40 dnl checks cheap.
  41 AC_CONFIG_SUBDIRS([libraries])
  42
  43 # -------------------------------------------------------------------------
  44 # Prepare to generate the following header files
  45 #
  46 #
  47 AC_CONFIG_HEADER(mk/config.h)
  48
  49 # No, semi-sadly, we don't do `--srcdir'...
  50 if test x"$srcdir" != 'x.' ; then
  51     echo "This configuration does not support the \`--srcdir' option.."
  52     exit 1
  53 fi
  54
  55 dnl--------------------------------------------------------------------
  56 dnl * Choose host(/target/build) platform
  57 dnl--------------------------------------------------------------------
  58
  59 dnl Guess host/target/build platform(s) if necessary.
  60 AC_CANONICAL_TARGET
  61
  62 # "$host" defaults to "$target"
  63 if test "x$host" = xNONE ; then
  64     host=$target
  65 fi
  66
  67 dnl ** canonicalize platform names
  68 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  69 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  70 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  71
  72 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  73     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  74     exit 1
  75 fi
  76
  77 exeext=''
  78 #
  79 # The following will be more difficult when we *are* cross-compiling.
  80 # Suitable names to slam in *_CPP are in platform.h.in.
  81 # We also record the architecture, vendor, and operating system (OS)
  82 # separately.
  83 case $HostPlatform in
  84 alpha*-dec-osf[[12]]*)
  85         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  86         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  87         BuildPlatform=alpha-dec-osf1  # hack
  88         HostPlatform_CPP='alpha_dec_osf1'
  89         HostArch_CPP='alpha'
  90         HostVendor_CPP='dec'
  91         HostOS_CPP='osf1'
  92         ;;
  93 alpha*-dec-osf[[345]]*)
  94         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  95         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  96         BuildPlatform=alpha-dec-osf3  # hack
  97         HostPlatform_CPP='alpha_dec_osf3'
  98         HostArch_CPP='alpha'
  99         HostVendor_CPP='dec'
 100         HostOS_CPP='osf3'
 101         ;;
 102 alpha*-unknown-linux*)
 103         HostPlatform=alpha-unknown-linux
 104         TargetPlatform=alpha-unknown-linux
 105         BuildPlatform=alpha-unknown-linux
 106         HostPlatform_CPP='alpha_unknown_linux'
 107         HostArch_CPP='alpha'
 108         HostVendor_CPP='unknown'
 109         HostOS_CPP='linux'
 110         ;;
 111 alpha*-unknown-freebsd*)
 112         HostPlatform=alpha-unknown-freebsd
 113         TargetPlatform=alpha-unknown-freebsd
 114         BuildPlatform=alpha-unknown-freebsd
 115         HostPlatform_CPP='alpha_unknown_freebsd'
 116         HostArch_CPP='alpha'
 117         HostVendor_CPP='unknown'
 118         HostOS_CPP='freebsd'
 119         ;;
 120 alpha*-unknown-openbsd*)
 121         HostPlatform=alpha-unknown-openbsd
 122         TargetPlatform=alpha-unknown-openbsd
 123         BuildPlatform=alpha-unknown-openbsd
 124         HostPlatform_CPP='alpha_unknown_openbsd'
 125         HostArch_CPP='alpha'
 126         HostVendor_CPP='unknown'
 127         HostOS_CPP='openbsd'
 128         ;;
 129 amd64-*-openbsd*|x86_64-*-openbsd*)
 130         HostPlatform=x86_64-unknown-openbsd
 131         TargetPlatform=x86_64-unknown-openbsd
 132         BuildPlatform=x86_64-unknown-openbsd
 133         HostPlatform_CPP='x86_64_unknown_openbsd'
 134         HostArch_CPP='x86_64'
 135         HostVendor_CPP='unknown'
 136         HostOS_CPP='openbsd'
 137         ;;
 138 amd64-*-freebsd*)
 139         HostPlatform=x86_64-unknown-freebsd
 140         TargetPlatform=x86_64-unknown-freebsd
 141         BuildPlatform=x86_64-unknown-freebsd
 142         HostPlatform_CPP='x86_64_unknown_freebsd'
 143         HostArch_CPP='x86_64'
 144         HostVendor_CPP='unknown'
 145         HostOS_CPP='freebsd'
 146         ;;
 147 arm*-linux*)
 148         HostPlatform=arm-unknown-linux # hack again
 149         TargetPlatform=arm-unknown-linux
 150         BuildPlatform=arm-unknown-linux
 151         HostPlatform_CPP='arm_unknown_linux'
 152         HostArch_CPP='arm'
 153         HostVendor_CPP='unknown'
 154         HostOS_CPP='linux'
 155         ;;
 156 arm*-openbsd*)
 157         HostPlatform=arm-unknown-openbsd
 158         TargetPlatform=arm-unknown-openbsd
 159         BuildPlatform=arm-unknown-openbsd
 160         HostPlatform_CPP='arm_unknown_openbsd'
 161         HostArch_CPP='arm'
 162         HostVendor_CPP='unknown'
 163         HostOS_CPP='openbsd'
 164         ;;
 165 hppa*-*-linux*)
 166         HostPlatform=hppa-unknown-linux # hack again
 167         TargetPlatform=hppa-unknown-linux
 168         BuildPlatform=hppa-unknown-linux
 169         HostPlatform_CPP='hppa_unknown_linux'
 170         HostArch_CPP='hppa'
 171         HostVendor_CPP='unknown'
 172         HostOS_CPP='linux'
 173         ;;
 174 hppa*-*-openbsd*)
 175         HostPlatform=hppa-unknown-openbsd # hack again
 176         TargetPlatform=hppa-unknown-openbsd
 177         BuildPlatform=hppa-unknown-openbsd
 178         HostPlatform_CPP='hppa_unknown_openbsd'
 179         HostArch_CPP='hppa'
 180         HostVendor_CPP='unknown'
 181         HostOS_CPP='openbsd'
 182         ;;
 183 hppa1.1-hp-hpux*)
 184         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 185         TargetPlatform=hppa1.1-hp-hpux
 186         BuildPlatform=hppa1.1-hp-hpux
 187         HostPlatform_CPP='hppa1_1_hp_hpux'
 188         HostArch_CPP='hppa1_1'
 189         HostVendor_CPP='hp'
 190         HostOS_CPP='hpux'
 191         ;;
 192 i[[3456]]86-*-linuxaout*)
 193         HostPlatform=i386-unknown-linuxaout   # hack again
 194         TargetPlatform=i386-unknown-linuxaout
 195         BuildPlatform=i386-unknown-linuxaout
 196         HostPlatform_CPP='i386_unknown_linuxaout'
 197         HostArch_CPP='i386'
 198         HostVendor_CPP='unknown'
 199         HostOS_CPP='linuxaout'
 200         ;;
 201 i[[3456]]86-*-linux*)
 202         HostPlatform=i386-unknown-linux # hack again
 203         TargetPlatform=i386-unknown-linux
 204         BuildPlatform=i386-unknown-linux
 205         HostPlatform_CPP='i386_unknown_linux'
 206         HostArch_CPP='i386'
 207         HostVendor_CPP='unknown'
 208         HostOS_CPP='linux'
 209         ;;
 210 i[[3456]]86-*-kfreebsd*-gnu)
 211         HostPlatform=i386-unknown-kfreebsdgnu # hack again
 212         TargetPlatform=i386-unknown-kfreebsdgnu
 213         BuildPlatform=i386-unknown-kfreebsdgnu
 214         HostPlatform_CPP='i386_unknown_kfreebsdgnu'
 215         HostArch_CPP='i386'
 216         HostVendor_CPP='unknown'
 217         HostOS_CPP='kfreebsdgnu'
 218         ;;
 219 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 220         HostPlatform=i386-unknown-freebsd # hack again
 221         TargetPlatform=i386-unknown-freebsd
 222         BuildPlatform=i386-unknown-freebsd
 223         HostPlatform_CPP='i386_unknown_freebsd'
 224         HostArch_CPP='i386'
 225         HostVendor_CPP='unknown'
 226         HostOS_CPP='freebsd'
 227         ;;
 228 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 229         HostPlatform=i386-unknown-freebsd2 # hack again
 230         TargetPlatform=i386-unknown-freebsd2
 231         BuildPlatform=i386-unknown-freebsd2
 232         HostPlatform_CPP='i386_unknown_freebsd2'
 233         HostArch_CPP='i386'
 234         HostVendor_CPP='unknown'
 235         HostOS_CPP='freebsd2'
 236         ;;
 237 i[[3456]]86-*-netbsd*)
 238         HostPlatform=i386-unknown-netbsd # hack again
 239         TargetPlatform=i386-unknown-netbsd
 240         BuildPlatform=i386-unknown-netbsd
 241         HostPlatform_CPP='i386_unknown_netbsd'
 242         HostArch_CPP='i386'
 243         HostVendor_CPP='unknown'
 244         HostOS_CPP='netbsd'
 245         ;;
 246 i[[3456]]86-*-openbsd*)
 247         HostPlatform=i386-unknown-openbsd # hack again
 248         TargetPlatform=i386-unknown-openbsd
 249         BuildPlatform=i386-unknown-openbsd
 250         HostPlatform_CPP='i386_unknown_openbsd'
 251         HostArch_CPP='i386'
 252         HostVendor_CPP='unknown'
 253         HostOS_CPP='openbsd'
 254         ;;
 255 i[[3456]]86-*-solaris2*)
 256         HostPlatform=i386-unknown-solaris2 # hack again
 257         TargetPlatform=i386-unknown-solaris2
 258         BuildPlatform=i386-unknown-solaris2
 259         HostPlatform_CPP='i386_unknown_solaris2'
 260         HostArch_CPP='i386'
 261         HostVendor_CPP='unknown'
 262         HostOS_CPP='solaris2'
 263         ;;
 264 i[[3456]]86-*-cygwin*)
 265         HostPlatform=i386-unknown-cygwin32 # hack again
 266         TargetPlatform=i386-unknown-cygwin32
 267         BuildPlatform=i386-unknown-cygwin32
 268         HostPlatform_CPP='i386_unknown_cygwin32'
 269         HostArch_CPP='i386'
 270         HostVendor_CPP='unknown'
 271         HostOS_CPP='cygwin32'
 272         exeext='.exe'
 273         ;;
 274 i[[3456]]86-*-mingw32*)
 275         HostPlatform=i386-unknown-mingw32 # hack again
 276         TargetPlatform=i386-unknown-mingw32
 277         BuildPlatform=i386-unknown-mingw32
 278         HostPlatform_CPP='i386_unknown_mingw32'
 279         HostArch_CPP='i386'
 280         HostVendor_CPP='unknown'
 281         HostOS_CPP='mingw32'
 282         exeext='.exe'
 283         ;;
 284 i[[3456]]86-apple-darwin*)
 285         HostPlatform=i386-apple-darwin
 286         TargetPlatform=i386-apple-darwin #hack
 287         BuildPlatform=i386-apple-darwin #hack
 288         HostPlatform_CPP='i386_apple_darwin'
 289         HostArch_CPP='i386'
 290         HostVendor_CPP='apple'
 291         HostOS_CPP='darwin'
 292         ;;
 293 i[[3456]]86-*-gnu*)
 294         HostPlatform=i386-unknown-gnu
 295         TargetPlatform=i386-unknown-gnu
 296         BuildPlatform=i386-unknown-gnu
 297         HostPlatform_CPP=i386_unknown_gnu
 298         HostArch_CPP=i386
 299         HostVendor_CPP=unknown
 300         HostOS_CPP=gnu
 301         ;;
 302 ia64-*-linux*)
 303         HostPlatform=ia64-unknown-linux # hack again
 304         TargetPlatform=ia64-unknown-linux
 305         BuildPlatform=ia64-unknown-linux
 306         HostPlatform_CPP='ia64_unknown_linux'
 307         HostArch_CPP='ia64'
 308         HostVendor_CPP='unknown'
 309         HostOS_CPP='linux'
 310         ;;
 311 x86_64-*-linux*)
 312         HostPlatform=x86_64-unknown-linux
 313         TargetPlatform=x86_64-unknown-linux
 314         BuildPlatform=x86_64-unknown-linux
 315         HostPlatform_CPP='x86_64_unknown_linux'
 316         HostArch_CPP='x86_64'
 317         HostVendor_CPP='unknown'
 318         HostOS_CPP='linux'
 319         ;;
 320 m68k-*-linux*)
 321         HostPlatform=m68k-unknown-linux # hack again
 322         TargetPlatform=m68k-unknown-linux
 323         BuildPlatform=m68k-unknown-linux
 324         HostPlatform_CPP='m68k_unknown_linux'
 325         HostArch_CPP='m68k'
 326         HostVendor_CPP='unknown'
 327         HostOS_CPP='linux'
 328         ;;
 329 m68k-next-nextstep2)
 330         HostPlatform_CPP='m68k_next_nextstep2'
 331         HostArch_CPP='m68k'
 332         HostVendor_CPP='next'
 333         HostOS_CPP='nextstep2'
 334         ;;
 335 m68k-next-nextstep3)
 336         HostPlatform_CPP='m68k_next_nextstep3'
 337         HostArch_CPP='m68k'
 338         HostVendor_CPP='next'
 339         HostOS_CPP='nextstep3'
 340         ;;
 341 i[[3456]]86-next-nextstep3)
 342         HostPlatform=i386-next-nextstep3 # hack again
 343         TargetPlatform=i386-next-nextstep3
 344         BuildPlatform=i386-next-nextstep3
 345         HostPlatform_CPP='i386_next_nextstep3'
 346         HostArch_CPP='i386'
 347         HostVendor_CPP='next'
 348         HostOS_CPP='nextstep3'
 349         ;;
 350 m68k-*-openbsd*)
 351         HostPlatform=m68k-unknown-openbsd
 352         TargetPlatform=m68k-unknown-openbsd
 353         BuildPlatform=m68k-unknown-openbsd
 354         HostPlatform_CPP='m68k_unknown_openbsd'
 355         HostArch_CPP='m68k'
 356         HostVendor_CPP='unknown'
 357         HostOS_CPP='openbsd'
 358         ;;
 359 m68k-*-netbsd*)
 360         HostPlatform=m68k-unknown-netbsd
 361         TargetPlatform=m68k-unknown-netbsd
 362         BuildPlatform=m68k-unknown-netbsd
 363         HostPlatform_CPP='m68k_unknown_netbsd'
 364         HostArch_CPP='m68k'
 365         HostVendor_CPP='unknown'
 366         HostOS_CPP='netbsd'
 367         ;;
 368 m68k-sun-sunos4*)
 369         HostPlatform=m68k-sun-sunos4
 370         TargetPlatform=m68k-sun-sunos4 #hack
 371         BuildPlatform=m68k-sun-sunos4 #hack
 372         HostPlatform_CPP='m68k_sun_sunos4'
 373         HostArch_CPP='m68k'
 374         HostVendor_CPP='sun'
 375         HostOS_CPP='sunos4'
 376         ;;
 377 m88k-*-openbsd*)
 378         HostPlatform=m88k-unknown-openbsd
 379         TargetPlatform=m88k-unknown-openbsd
 380         BuildPlatform=m88k-unknown-openbsd
 381         HostPlatform_CPP='m88k_unknown_openbsd'
 382         HostArch_CPP='m88k'
 383         HostVendor_CPP='unknown'
 384         HostOS_CPP='openbsd'
 385         ;;
 386 mips-*-linux*)
 387         HostPlatform=mips-unknown-linux # hack again
 388         TargetPlatform=mips-unknown-linux
 389         BuildPlatform=mips-unknown-linux
 390         HostPlatform_CPP='mips_unknown_linux'
 391         HostArch_CPP='mips'
 392         HostVendor_CPP='unknown'
 393         HostOS_CPP='linux'
 394         ;;
 395 mipsel-*-linux*)
 396         HostPlatform=mipsel-unknown-linux # hack again
 397         TargetPlatform=mipsel-unknown-linux
 398         BuildPlatform=mipsel-unknown-linux
 399         HostPlatform_CPP='mipsel_unknown_linux'
 400         HostArch_CPP='mipsel'
 401         HostVendor_CPP='unknown'
 402         HostOS_CPP='linux'
 403         ;;
 404 mips-dec-ultrix*)
 405         HostPlatform_CPP='mips_dec_ultrix'
 406         HostArch_CPP='mipsel'   # NB a little different
 407         HostVendor_CPP='dec'
 408         HostOS_CPP='ultrix'
 409         ;;
 410 mips-sgi-irix*)
 411         HostPlatform=mips-sgi-irix
 412         TargetPlatform=mips-sgi-irix #hack
 413         BuildPlatform=mips-sgi-irix #hack
 414         HostPlatform_CPP='mips_sgi_irix'
 415         HostArch_CPP='mipseb'   # NB a little different
 416         HostVendor_CPP='sgi'
 417         HostOS_CPP='irix'
 418         ;;
 419 rs6000-ibm-aix*)
 420         HostPlatform=rs6000-ibm-aix
 421         TargetPlatform=rs6000-ibm-aix #hack
 422         BuildPlatform=rs6000-ibm-aix #hack
 423         HostPlatform_CPP='rs6000_ibm_aix'
 424         HostArch_CPP='rs6000'
 425         HostVendor_CPP='ibm'
 426         HostOS_CPP='aix'
 427         ;;
 428 powerpc-ibm-aix*)
 429         HostPlatform=powerpc-ibm-aix
 430         TargetPlatform=powerpc-ibm-aix #hack
 431         BuildPlatform=powerpc-ibm-aix #hack
 432         HostPlatform_CPP='powerpc_ibm_aix'
 433         HostArch_CPP='powerpc'
 434         HostVendor_CPP='ibm'
 435         HostOS_CPP='aix'
 436         ;;
 437 powerpc-apple-darwin*)
 438         HostPlatform=powerpc-apple-darwin
 439         TargetPlatform=powerpc-apple-darwin #hack
 440         BuildPlatform=powerpc-apple-darwin #hack
 441         HostPlatform_CPP='powerpc_apple_darwin'
 442         HostArch_CPP='powerpc'
 443         HostVendor_CPP='apple'
 444         HostOS_CPP='darwin'
 445         ;;
 446 powerpc-unknown-linux*)
 447         HostPlatform=powerpc-unknown-linux
 448         TargetPlatform=powerpc-unknown-linux
 449         BuildPlatform=powerpc-unknown-linux
 450         HostPlatform_CPP='powerpc_unknown_linux'
 451         HostArch_CPP='powerpc'
 452         HostVendor_CPP='unknown'
 453         HostOS_CPP='linux'
 454         ;;
 455 powerpc-unknown-openbsd*)
 456         HostPlatform=powerpc-unknown-openbsd
 457         TargetPlatform=powerpc-unknown-openbsd
 458         BuildPlatform=powerpc-unknown-openbsd
 459         HostPlatform_CPP='powerpc_unknown_openbsd'
 460         HostArch_CPP='powerpc'
 461         HostVendor_CPP='unknown'
 462         HostOS_CPP='openbsd'
 463         ;;
 464 powerpc64-unknown-linux*)
 465         HostPlatform=powerpc64-unknown-linux
 466         TargetPlatform=powerpc64-unknown-linux
 467         BuildPlatform=powerpc64-unknown-linux
 468         HostPlatform_CPP='powerpc64_unknown_linux'
 469         HostArch_CPP='powerpc64'
 470         HostVendor_CPP='unknown'
 471         HostOS_CPP='linux'
 472         ;;
 473
 474 s390-ibm-linux*)
 475        HostPlatform=s390-ibm-linux
 476        TargetPlatform=s390-ibm-linux #hack
 477        BuildPlatform=s390-ibm-linux #hack
 478         HostPlatform_CPP='s390_ibm_linux'
 479         HostArch_CPP='s390'
 480         HostVendor_CPP='ibm'
 481         HostOS_CPP='linux'
 482         ;;
 483 sparc-sun-sunos4*)
 484         HostPlatform=sparc-sun-sunos4
 485         TargetPlatform=sparc-sun-sunos4 #hack
 486         BuildPlatform=sparc-sun-sunos4 #hack
 487         HostPlatform_CPP='sparc_sun_sunos4'
 488         HostArch_CPP='sparc'
 489         HostVendor_CPP='sun'
 490         HostOS_CPP='sunos4'
 491         ;;
 492 sparc-sun-solaris2*)
 493         HostPlatform=sparc-sun-solaris2
 494         TargetPlatform=sparc-sun-solaris2 #hack
 495         BuildPlatform=sparc-sun-solaris2 #hack
 496         HostPlatform_CPP='sparc_sun_solaris2'
 497         HostArch_CPP='sparc'
 498         HostVendor_CPP='sun'
 499         HostOS_CPP='solaris2'
 500         ;;
 501 sparc*-linux*)
 502         HostPlatform=sparc-unknown-linux
 503         TargetPlatform=sparc-unknown-linux
 504         BuildPlatform=sparc-unknown-linux
 505         HostPlatform_CPP='sparc_unknown_linux'
 506         HostArch_CPP='sparc'
 507         HostVendor_CPP='unknown'
 508         HostOS_CPP='linux'
 509         ;;
 510 sparc-*-openbsd*)
 511         HostPlatform=sparc-unknown-openbsd
 512         TargetPlatform=sparc-unknown-openbsd
 513         BuildPlatform=sparc-unknown-openbsd
 514         HostPlatform_CPP='sparc_unknown_openbsd'
 515         HostArch_CPP='sparc'
 516         HostVendor_CPP='unknown'
 517         HostOS_CPP='openbsd'
 518         ;;
 519 sparc64-*-openbsd*)
 520         HostPlatform=sparc64-unknown-openbsd
 521         TargetPlatform=sparc64-unknown-openbsd
 522         BuildPlatform=sparc64-unknown-openbsd
 523         HostPlatform_CPP='sparc64_unknown_openbsd'
 524         HostArch_CPP='sparc64'
 525         HostVendor_CPP='unknown'
 526         HostOS_CPP='openbsd'
 527         ;;
 528 vax-*-openbsd*)
 529         HostPlatform=vax-unknown-openbsd
 530         TargetPlatform=vax-unknown-openbsd
 531         BuildPlatform=vax-unknown-openbsd
 532         HostPlatform_CPP='vax_unknown_openbsd'
 533         HostArch_CPP='vax'
 534         HostVendor_CPP='unknown'
 535         HostOS_CPP='openbsd'
 536         ;;
 537 *)
 538         echo "Unrecognised platform: $HostPlatform"
 539         exit 1
 540         ;;
 541 esac
 542 echo "Canonicalised to: $HostPlatform"
 543 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 544 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 545
 546 BuildPlatform_CPP=$HostPlatform_CPP
 547 TargetPlatform_CPP=$HostPlatform_CPP
 548 BuildArch_CPP=$HostArch_CPP
 549 TargetArch_CPP=$HostArch_CPP
 550 BuildOS_CPP=$HostOS_CPP
 551 HostOS_Full=$host_os
 552 TargetOS_CPP=$HostOS_CPP
 553 BuildVendor_CPP=$HostVendor_CPP
 554 TargetVendor_CPP=$HostVendor_CPP
 555
 556 AC_SUBST(BuildPlatform)
 557 AC_SUBST(HostPlatform)
 558 AC_SUBST(TargetPlatform)
 559 AC_SUBST(HostPlatform_CPP)
 560 AC_SUBST(BuildPlatform_CPP)
 561 AC_SUBST(TargetPlatform_CPP)
 562
 563 AC_SUBST(HostArch_CPP)
 564 AC_SUBST(BuildArch_CPP)
 565 AC_SUBST(TargetArch_CPP)
 566
 567 AC_SUBST(HostOS_CPP)
 568 AC_SUBST(HostOS_Full)
 569 AC_SUBST(BuildOS_CPP)
 570 AC_SUBST(TargetOS_CPP)
 571
 572 AC_SUBST(HostVendor_CPP)
 573 AC_SUBST(BuildVendor_CPP)
 574 AC_SUBST(TargetVendor_CPP)
 575
 576 AC_SUBST(exeext)
 577
 578 dnl --------------------------------------------------------------
 579 dnl * Calculate absolute path to build tree
 580 dnl --------------------------------------------------------------
 581
 582 AC_MSG_CHECKING(for path to top of build tree)
 583
 584 hardtop=`pwd`
 585
 586 dnl Remove common automounter nonsense
 587 dnl
 588 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
 589
 590 dnl Find 'hardtop_plat', the native format for 'hardtop'
 591 dnl (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes
 592 dnl being escaped).
 593 dnl
 594 dnl Note OSTYPE: On Cygwin we need to use 'cygpath' to convert
 595 dnl              /cygdrive/c/foo to c:/foo but we must not do that if we
 596 dnl              aren't building using Cygwin (notably msys), because
 597 dnl              cygpath doesn't exist.  It seems that 'bash' sets
 598 dnl              OSTYPE to 'cygwin' or 'msys' respectively, but cygwin's
 599 dnl              'sh' does not.  So we hackily assume that if the shell
 600 dnl              hasn't set it to 'msys' then we must be in Cygwin.
 601 dnl              Sigh.
 602 dnl
 603 dnl              The Right Thing is probably to test $BuildPlatform
 604 dnl              instead, but we are sloppy about setting that correctly
 605 dnl              at the moment, so we just work around for now.
 606 dnl
 607 dnl              The quotes round "$(OSTYPE)" are essential, for the
 608 dnl              Cygwin-sh case where OSTYPE is not set.
 609 case $HostPlatform in
 610   i386-unknown-mingw32 | i386-unknown-cygwin32)
 611         if test "${OSTYPE}" != "msys"
 612           then
 613             # convert $hardtop to a path that mingw will understand too
 614             cyghardtop=${hardtop}
 615             hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
 616             hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
 617           else
 618 dnl OK, so we're in the MSYS case.  hardtop looks like /c/....
 619 dnl We want to make hardtop_plat into c:/...
 620 dnl Stop using [] for quotes temporarily, so we can use [] in the sed regexp
 621 changequote(, )dnl
 622                hardtop_plat=`echo ${hardtop} | sed -e 's@^/\\([a-zA-Z]\\)/@\\1:/@g'`
 623 changequote([, ])dnl
 624         fi
 625         ;;
 626   *)
 627         hardtop_plat=${hardtop}
 628         ;;
 629 esac
 630 AC_SUBST(hardtop)
 631 AC_SUBST(hardtop_plat)
 632
 633 AC_MSG_RESULT(${hardtop})
 634
 635 # We don't support building in directories with spaces.
 636 case "$hardtop" in
 637   *' '*) AC_MSG_ERROR([
 638    The build system does not support building in a directory containing
 639    space characters.  Suggestion: move the build tree somewhere else.])
 640  ;;
 641 esac
 642
 643 dnl --------------------------------------------------------------
 644 dnl * Project specific configuration options
 645 dnl --------------------------------------------------------------
 646 dnl What follows is a bunch of options that can either be configured
 647 dnl through command line options to the configure script or by
 648 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 649 dnl use either is considered a Feature.
 650
 651 dnl ** What command to use to compile compiler sources ?
 652 dnl --------------------------------------------------------------
 653
 654 AC_ARG_WITH([ghc],
 655 [AC_HELP_STRING([--with-ghc=ARG],
 656   [Use ARG as the path to GHC  [default=autodetect]])],
 657   [WithGhc="$withval"],
 658   [if test "$GHC" = ""; then
 659     AC_PATH_PROG([GHC], [ghc])
 660   fi
 661   WithGhc="$GHC"])
 662 AC_SUBST([WithGhc])
 663
 664 AC_ARG_WITH(hc,
 665 [AC_HELP_STRING([--with-hc=ARG],
 666         [Use ARG as the path to the compiler for compiling ordinary
 667          Haskell code  (default= value of --with-ghc)])],
 668 [WithHc="$withval"],
 669 [WithHc=$WithGhc]
 670 )
 671 AC_SUBST(WithHc)
 672
 673 if test "$WithGhc" != ""; then
 674   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 675   AC_SUBST(GhcVersion)dnl
 676   AC_SUBST(GhcMajVersion)dnl
 677   AC_SUBST(GhcMinVersion)dnl
 678   AC_SUBST(GhcPatchLevel)dnl
 679 fi
 680
 681 # Check whether this GHC has readline installed
 682 FP_GHC_HAS_READLINE
 683
 684 AC_PATH_PROGS(NHC,nhc nhc98)
 685 AC_PATH_PROG(HBC,hbc)
 686
 687 dnl ** Which gcc to use?
 688 dnl --------------------------------------------------------------
 689 AC_ARG_WITH(gcc,
 690 [AC_HELP_STRING([--with-gcc=ARG],
 691         [Use ARG as the path to GCC  [default=autodetect]])],
 692 [WhatGccIsCalled="$withval"
 693  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 694     then
 695        if test "${OSTYPE}" != "msys"
 696          then
 697          # Canonicalise to <drive>:/path/to/gcc
 698          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 699        fi
 700  fi;
 701  CC="$withval"
 702  export CC
 703  ],
 704 [WhatGccIsCalled="gcc"]
 705 )
 706 AC_SUBST(WhatGccIsCalled)
 707
 708 dnl ** Booting from .hc files?
 709 dnl --------------------------------------------------------------
 710 AC_ARG_ENABLE(hc-boot,
 711 [AC_HELP_STRING([--enable-hc-boot],
 712 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 713  (This option is mostly of interest to porters.) [default=no]])],
 714 [ if test x"$enableval" = x"yes"; then
 715         BootingFromHc=YES
 716   else
 717         BootingFromHc=NO
 718   fi
 719 ],
 720 [BootingFromHc=NO]
 721 )
 722 AC_SUBST(BootingFromHc)
 723
 724 dnl ** Booting from unregisterised .hc files?
 725 dnl --------------------------------------------------------------
 726 AC_ARG_ENABLE(hc-boot-unregisterised,
 727 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 728 [ With --enable-hc-boot, treat the intermediate .hc files as
 729  unregisterised rather than registerised code.
 730  (This option is mostly of interest to porters.) [default=no]])],
 731 [ if test x"$enableval" = x"yes"; then
 732         BootingFromUnregisterisedHc=YES
 733   else
 734         BootingFromUnregisterisedHc=NO
 735   fi
 736 ],
 737 [BootingFromUnregisterisedHc=NO]
 738 )
 739 AC_SUBST(BootingFromUnregisterisedHc)
 740
 741 if test "$BootingFromHc" = "NO"; then
 742 if test "$BootingFromUnregisterisedHc" = "YES"; then
 743 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 744 fi;
 745 fi;
 746
 747 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 748 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/compiler"; then
 749 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 750 fi;
 751
 752 dnl ** Enable the construction of Win32 DLLs?
 753 dnl --------------------------------------------------------------
 754 dnl
 755 dnl [ The ability to build the RTS and libraries as separate DLLs used
 756 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 757 dnl   and build system would be required to bring it back again.)
 758 dnl   Hence, exposing it as an option is false advertisement, so better
 759 dnl   disable it to avoid confusion (but leave it commented-out rather
 760 dnl   than removed in order to remind ourselves to bring back the
 761 dnl   feature at some stage.) ]
 762 dnl
 763 dnl AC_ARG_ENABLE(win32-dlls,
 764 dnl [  --enable-win32-dlls
 765 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 766 dnl         construction of DLLs containing ghc-compiled code.
 767 dnl ],
 768 dnl [
 769 dnl case $HostOS_CPP in
 770 dnl cygwin32) ;;
 771 dnl mingw32)  ;;
 772 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 773 dnl       exit 1
 774 dnl       ;;
 775 dnl esac
 776 dnl EnableWin32DLLs=YES
 777 dnl ],
 778 dnl [EnableWin32DLLs=NO]
 779 dnl )
 780 dnl AC_SUBST(EnableWin32DLLs)
 781 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 782 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 783 dnl fi
 784
 785 dnl ** Enable the building of the ObjectIO?
 786 dnl --------------------------------------------------------------
 787 AC_ARG_ENABLE(objectio,
 788 [AC_HELP_STRING([--enable-objectio],
 789 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 790 [ if test x"$enableval" = x"yes"; then
 791         GhcLibsWithObjectIO=YES
 792   else
 793         GhcLibsWithObjectIO=NO
 794   fi
 795 ],
 796 [GhcLibsWithObjectIO=NO]
 797 )
 798 AC_SUBST(GhcLibsWithObjectIO)
 799
 800 dnl ** .NET interop support?
 801 dnl --------------------------------------------------------------
 802 AC_ARG_ENABLE(dotnet,
 803 [AC_HELP_STRING([--enable-dotnet],
 804 [Build .NET interop layer. [default=no]])],
 805 [ if test x"$enableval" = x"yes"; then
 806         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 807   else
 808         DotnetSupport=NO
 809   fi],
 810 [DotnetSupport=NO]
 811 )
 812 AC_SUBST(DotnetSupport)
 813
 814 dnl --------------------------------------------------------------
 815 dnl End of configure script option section
 816 dnl --------------------------------------------------------------
 817
 818
 819 dnl --------------------------------------------------------------
 820 dnl * General configuration checks
 821 dnl --------------------------------------------------------------
 822
 823 dnl ** Can the unix package be built?
 824 dnl --------------------------------------------------------------
 825
 826 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 827    GhcLibsWithUnix=NO
 828 else
 829    GhcLibsWithUnix=YES
 830 fi
 831 AC_SUBST([GhcLibsWithUnix])
 832
 833 dnl ** does #! work?
 834 AC_SYS_INTERPRETER()
 835
 836 dnl ** look for `perl', but only in /bin on Windows
 837 case $HostOS_CPP in
 838 cygwin32|mingw32)
 839       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 840       if test -z "$PerlCmd"; then
 841          echo "You must install the version of Perl shipped with GHC"
 842          echo "(or a compatible one) in /bin."
 843          exit 1
 844       fi
 845    ;;
 846 *)
 847    AC_PATH_PROG(PerlCmd,perl)
 848    if test -z "$PerlCmd"; then
 849       echo "You must install perl before you can continue"
 850       echo "Perhaps it is already installed, but not in your PATH?"
 851       exit 1
 852    else
 853    FPTOOLS_CHECK_PERL_VERSION
 854    fi
 855    ;;
 856 esac
 857
 858 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 859 FPTOOLS_SHEBANG_PERL
 860
 861 dnl ** check for Python
 862 AC_PATH_PROG(PythonCmd,python)
 863
 864 dnl ** look for GCC and find out which version
 865 dnl     Figure out which C compiler to use.  Gcc is preferred.
 866 dnl     If gcc, make sure it's at least 2.1
 867 dnl
 868 FP_HAVE_GCC
 869 FP_MINGW_GCC
 870 FP_GCC_NEEDS_NO_OMIT_LFPTR
 871 FP_GCC_HAS_NO_UNIT_AT_A_TIME
 872
 873 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 874 AC_PROG_CPP
 875
 876 dnl ** Without optimization some INLINE trickery fails for GHCi
 877 SRC_CC_OPTS="-O"
 878
 879 dnl ** Try to add -mno-cygwin to the C compiler options
 880 FP_CHECK_FLAG([-mno-cygwin], [
 881 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 882 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 883 AC_SUBST(SRC_CC_OPTS)
 884
 885 dnl ** figure out how to do context diffs
 886 FP_PROG_CONTEXT_DIFF
 887
 888 dnl ** Find find command (for Win32's benefit)
 889 FP_PROG_FIND
 890
 891 dnl ** Find sort command (for the benefit of Win32 environs)
 892 FP_PROG_SORT
 893
 894 dnl ** figure out how to do a BSD-ish install
 895 AC_PROG_INSTALL
 896
 897 dnl If you can run configure, you certainly have /bin/sh
 898 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 899
 900 dnl ** how to invoke `ar' and `ranlib'
 901 FP_PROG_AR_NEEDS_RANLIB
 902 FP_PROG_AR_SUPPORTS_INPUT
 903
 904 dnl ** Check to see whether ln -s works
 905 AC_PROG_LN_S
 906
 907
 908 dnl ** Find the path to sed
 909 AC_PATH_PROG(SedCmd,sed)
 910
 911
 912 dnl ** check for time command
 913 AC_PATH_PROG(TimeCmd,time)
 914
 915 dnl ** check for tar
 916 dnl   if GNU tar is named gtar, look for it first.
 917 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 918
 919 dnl ** check for DocBook toolchain
 920 FP_CHECK_DOCBOOK_DTD
 921 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl /usr/local/share/xsl/docbook /sw/share/xml/xsl/docbook-xsl /opt/local/share/xsl/docbook-xsl])
 922 FP_PROG_FO_PROCESSOR
 923
 924 dnl ** check for ghc-pkg command
 925 FP_PROG_GHC_PKG
 926
 927 AC_ARG_WITH(greencard,
 928 [AC_HELP_STRING([--with-greencard=ARG],
 929         [Use ARG as the path to greencard  [default=autodetct]])],
 930 [
 931 GreenCardCmd=$withval;
 932 FPTOOLS_GREENCARD(3.00)
 933 ]
 934 )
 935
 936 dnl ** check for installed happy binary + version
 937 dnl    (don't do it if we're booting from .hc files though.)
 938 if test "$BootingFromHc" = "NO"; then
 939 FPTOOLS_HAPPY
 940 fi;
 941
 942 dnl ** check for installed haddock
 943 FPTOOLS_HADDOCK
 944
 945 dnl ** check for installed alex binary + version
 946 dnl    (don't do it if we're booting from .hc files though.)
 947 if test "$BootingFromHc" = "NO"; then
 948 FPTOOLS_ALEX
 949 fi;
 950
 951 dnl --------------------------------------------------
 952 dnl ### program checking section ends here ###
 953 dnl --------------------------------------------------
 954
 955 dnl --------------------------------------------------
 956 dnl * Platform header file and syscall feature tests
 957 dnl ### checking the state of the local header files and syscalls ###
 958
 959 dnl ** check for full ANSI header (.h) files
 960 AC_HEADER_STDC
 961
 962 dnl ** Enable large file support.  NB. do this before testing the type of
 963 dnl    off_t, because it will affect the result of that test.
 964 AC_SYS_LARGEFILE
 965
 966 dnl ** check for specific header (.h) files that we are interested in
 967 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h])
 968
 969 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 970 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 971
 972 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 973   GhcLibsWithReadline=YES
 974   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 975 else
 976   GhcLibsWithReadline=NO
 977   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 978 fi
 979 AC_SUBST(GhcLibsWithReadline)
 980
 981 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 982 AC_HEADER_TIME
 983
 984 dnl ** do we have long longs?
 985 AC_CHECK_TYPES([long long])
 986
 987 dnl ** what are the sizes of various types
 988 AC_CHECK_SIZEOF(char,               1)
 989 AC_CHECK_SIZEOF(double,             8)
 990 AC_CHECK_SIZEOF(float,              4)
 991 AC_CHECK_SIZEOF(int,                4)
 992 AC_CHECK_SIZEOF(long,               4)
 993 if test "$ac_cv_type_long_long" = yes; then
 994 AC_CHECK_SIZEOF(long long,          8)
 995 fi
 996 AC_CHECK_SIZEOF(short,              2)
 997 AC_CHECK_SIZEOF(unsigned char,      1)
 998 AC_CHECK_SIZEOF(unsigned int,       4)
 999 AC_CHECK_SIZEOF(unsigned long,      4)
1000 if test "$ac_cv_type_long_long" = yes; then
1001 AC_CHECK_SIZEOF(unsigned long long, 8)
1002 fi
1003 AC_CHECK_SIZEOF(unsigned short,     2)
1004 AC_CHECK_SIZEOF(void *,             4)
1005
1006 dnl ** what are alignment constraints on various types
1007 FP_CHECK_ALIGNMENT(char)
1008 FP_CHECK_ALIGNMENT(double)
1009 FP_CHECK_ALIGNMENT(float)
1010 FP_CHECK_ALIGNMENT(int)
1011 FP_CHECK_ALIGNMENT(long)
1012 if test "$ac_cv_type_long_long" = yes; then
1013 FP_CHECK_ALIGNMENT(long long)
1014 fi
1015 FP_CHECK_ALIGNMENT(short)
1016 FP_CHECK_ALIGNMENT(unsigned char)
1017 FP_CHECK_ALIGNMENT(unsigned int)
1018 FP_CHECK_ALIGNMENT(unsigned long)
1019 if test "$ac_cv_type_long_long" = yes; then
1020 FP_CHECK_ALIGNMENT(unsigned long long)
1021 fi
1022 FP_CHECK_ALIGNMENT(unsigned short)
1023 FP_CHECK_ALIGNMENT(void *)
1024
1025 FP_CHECK_FUNC([WinExec],
1026   [@%:@include <windows.h>], [WinExec("",0)])
1027
1028 FP_CHECK_FUNC([GetModuleFileName],
1029   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1030
1031 dnl ** check return type of signal handlers
1032 dnl Foo: assumes we can use prototypes.
1033 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1034 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1035 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1036 dnl #include <signal.h>
1037 dnl #ifdef signal
1038 dnl #undef signal
1039 dnl #endif
1040 dnl void (*signal (int, void (*)(int)))(int);
1041 dnl ]],
1042 dnl [[int i;]])],
1043 dnl [ac_cv_type_signal_handler=void_int],
1044 dnl [ac_cv_type_signal_handler=int_void])])
1045 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1046 dnl AC_DEFINE(VOID_INT_SIGNALS)
1047 dnl fi
1048
1049 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1050 AC_TYPE_SIGNAL
1051 if test "$ac_cv_type_signal" = void; then
1052   AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
1053 fi
1054
1055 dnl ** check for more functions
1056 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1057 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r])
1058 dnl ** For ghc/rts/gmp:
1059 AC_CHECK_FUNCS([getpagesize])
1060
1061 dnl ** check whether this machine has gmp3 installed
1062 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1063   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1064     HaveLibGmp=NO; LibGmp=not-installed))
1065 AC_SUBST(HaveLibGmp)
1066 AC_SUBST(LibGmp)
1067
1068 dnl ** (Mac OS X only: check for GMP.framework)
1069 HaveFrameworkGMP=NO
1070 case $HostPlatform in
1071 *-apple-darwin)
1072     AC_MSG_CHECKING([for GMP.framework])
1073     save_libs="$LIBS"
1074     LIBS="-framework GMP"
1075     AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkGMP=YES,)
1076     if test $HaveFrameworkGMP = YES; then
1077       AC_DEFINE([HAVE_FRAMEWORK_GMP], [1], [Define to 1 if GMP.framework is installed (Mac OS X only).])
1078     fi;
1079     LIBS="$save_libs"
1080     AC_MSG_RESULT([$HaveFrameworkGMP])
1081     ;;
1082 esac
1083 AC_SUBST(HaveFrameworkGMP)
1084
1085 dnl ** check for mingwex library
1086 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1087 AC_SUBST(HaveLibMingwEx)
1088
1089 if test $HaveLibMingwEx = YES ; then
1090   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1091 fi
1092
1093 if test "$HaveLibGmp" = "NO"; then
1094 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1095 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1096 fi;
1097 fi;
1098
1099 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1100 dnl    the order of these tests matters: bfd needs liberty
1101 AC_CHECK_LIB(iberty, xmalloc)
1102 AC_CHECK_LIB(bfd,    bfd_init)
1103
1104 dnl ** check for math library
1105 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
1106 if test x"$fp_libm_not_needed" = xdunno; then
1107    AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
1108 fi
1109 AC_SUBST([LIBM])
1110
1111 dnl ################################################################
1112 dnl Check for libraries
1113 dnl ################################################################
1114
1115 dnl ** check whether we need -ldl to get dlopen()
1116
1117 AC_CHECK_LIB(dl, dlopen,
1118     [HaveLibDL=YES
1119      AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1120      LIBS="$LIBS -ldl"],
1121     [HaveLibDL=NO])
1122 AC_SUBST(HaveLibDL)
1123
1124 dnl --------------------------------------------------
1125 dnl * Miscellaneous feature tests
1126 dnl --------------------------------------------------
1127
1128 dnl ** can we get alloca?
1129 AC_FUNC_ALLOCA
1130
1131 dnl ** Working vfork?
1132 AC_FUNC_FORK
1133
1134 dnl ** determine whether or not const works
1135 AC_C_CONST
1136
1137 dnl ** are we big endian?
1138 AC_C_BIGENDIAN
1139 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
1140
1141 dnl ** check for leading underscores in symbol names
1142 FP_LEADING_UNDERSCORE
1143
1144 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
1145 FP_PROG_LD_X
1146 FP_PROG_LD_IS_GNU
1147
1148 dnl ** check for Apple-style dead-stripping support
1149 dnl    (.subsections-via-symbols assembler directive)
1150
1151
1152 AC_MSG_CHECKING(for .subsections_via_symbols)
1153 AC_COMPILE_IFELSE(
1154     [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
1155     [AC_MSG_RESULT(yes)
1156      AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
1157                [Define to 1 if Apple-style dead-stripping is supported.])
1158     ],
1159     [AC_MSG_RESULT(no)])
1160
1161 dnl *** check for GNU non-executable stack note support (ELF only)
1162 dnl     (.section .note.GNU-stack,"",@progbits)
1163
1164 AC_MSG_CHECKING(for GNU non-executable stack support)
1165 AC_COMPILE_IFELSE(
1166     [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
1167     [AC_MSG_RESULT(yes)
1168      AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
1169                [Define to 1 if GNU non-executable stack notes are supported.])
1170     ],
1171     [AC_MSG_RESULT(no)])
1172
1173 dnl ** check for librt
1174 AC_CHECK_LIB(rt, clock_gettime)
1175 AC_CHECK_FUNCS(clock_gettime)
1176
1177 dnl ** check for Apple's "interesting" long double compatibility scheme
1178 AC_MSG_CHECKING(for printf$LDBLStub)
1179 AC_TRY_LINK_FUNC(printf$LSBLStub,
1180     [
1181         AC_MSG_RESULT(yes)
1182         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
1183             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
1184     ],
1185     [
1186         AC_MSG_RESULT(no)
1187         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
1188             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
1189     ])
1190
1191 # test for GTK+
1192 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
1193 if test -n "$GTK_CONFIG"; then
1194   if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
1195     GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
1196   else
1197     AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
1198     GTK_CONFIG=
1199   fi
1200 fi
1201 AC_SUBST([GTK_CONFIG])
1202
1203 AC_CONFIG_FILES([mk/config.mk ghc.spec docs/users_guide/ug-book.xml])
1204 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1205 AC_OUTPUT