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], [6.5], [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 ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
 617           else
 618             hardtop_plat=${hardtop}
 619         fi
 620         ;;
 621   *)
 622         hardtop_plat=${hardtop}
 623         ;;
 624 esac
 625 AC_SUBST(hardtop)
 626 AC_SUBST(hardtop_plat)
 627
 628 AC_MSG_RESULT(${hardtop})
 629
 630 # We don't support building in directories with spaces.
 631 case "$hardtop" in
 632   *' '*) AC_MSG_ERROR([
 633    The build system does not support building in a directory containing
 634    space characters.  Suggestion: move the build tree somewhere else.])
 635  ;;
 636 esac
 637
 638 dnl --------------------------------------------------------------
 639 dnl * Project specific configuration options
 640 dnl --------------------------------------------------------------
 641 dnl What follows is a bunch of options that can either be configured
 642 dnl through command line options to the configure script or by
 643 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 644 dnl use either is considered a Feature.
 645
 646 dnl ** What command to use to compile compiler sources ?
 647 dnl --------------------------------------------------------------
 648
 649 AC_ARG_WITH([ghc],
 650 [AC_HELP_STRING([--with-ghc=ARG],
 651   [Use ARG as the path to GHC  [default=autodetect]])],
 652   [WithGhc="$withval"],
 653   [if test "$GHC" = ""; then
 654     AC_PATH_PROG([GHC], [ghc])
 655   fi
 656   WithGhc="$GHC"])
 657 AC_SUBST([WithGhc])
 658
 659 AC_ARG_WITH(hc,
 660 [AC_HELP_STRING([--with-hc=ARG],
 661         [Use ARG as the path to the compiler for compiling ordinary
 662          Haskell code  (default= value of --with-ghc)])],
 663 [WithHc="$withval"],
 664 [WithHc=$WithGhc]
 665 )
 666 AC_SUBST(WithHc)
 667
 668 if test "$WithGhc" != ""; then
 669   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 670   AC_SUBST(GhcVersion)dnl
 671   AC_SUBST(GhcMajVersion)dnl
 672   AC_SUBST(GhcMinVersion)dnl
 673   AC_SUBST(GhcPatchLevel)dnl
 674 fi
 675
 676 # Check whether this GHC has readline installed
 677 FP_GHC_HAS_READLINE
 678
 679 AC_PATH_PROGS(NHC,nhc nhc98)
 680 AC_PATH_PROG(HBC,hbc)
 681
 682 dnl ** Which gcc to use?
 683 dnl --------------------------------------------------------------
 684 AC_ARG_WITH(gcc,
 685 [AC_HELP_STRING([--with-gcc=ARG],
 686         [Use ARG as the path to GCC  [default=autodetect]])],
 687 [WhatGccIsCalled="$withval"
 688  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 689     then
 690        if test "${OSTYPE}" != "msys"
 691          then
 692          # Canonicalise to <drive>:/path/to/gcc
 693          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 694        fi
 695  fi;
 696  CC="$withval"
 697  export CC
 698  ],
 699 [WhatGccIsCalled="gcc"]
 700 )
 701 AC_SUBST(WhatGccIsCalled)
 702
 703 dnl ** Booting from .hc files?
 704 dnl --------------------------------------------------------------
 705 AC_ARG_ENABLE(hc-boot,
 706 [AC_HELP_STRING([--enable-hc-boot],
 707 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 708  (This option is mostly of interest to porters.) [default=no]])],
 709 [ if test x"$enableval" = x"yes"; then
 710         BootingFromHc=YES
 711   else
 712         BootingFromHc=NO
 713   fi
 714 ],
 715 [BootingFromHc=NO]
 716 )
 717 AC_SUBST(BootingFromHc)
 718
 719 dnl ** Booting from unregisterised .hc files?
 720 dnl --------------------------------------------------------------
 721 AC_ARG_ENABLE(hc-boot-unregisterised,
 722 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 723 [ With --enable-hc-boot, treat the intermediate .hc files as
 724  unregisterised rather than registerised code.
 725  (This option is mostly of interest to porters.) [default=no]])],
 726 [ if test x"$enableval" = x"yes"; then
 727         BootingFromUnregisterisedHc=YES
 728   else
 729         BootingFromUnregisterisedHc=NO
 730   fi
 731 ],
 732 [BootingFromUnregisterisedHc=NO]
 733 )
 734 AC_SUBST(BootingFromUnregisterisedHc)
 735
 736 if test "$BootingFromHc" = "NO"; then
 737 if test "$BootingFromUnregisterisedHc" = "YES"; then
 738 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 739 fi;
 740 fi;
 741
 742 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 743 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/compiler"; then
 744 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 745 fi;
 746
 747 dnl ** Enable the construction of Win32 DLLs?
 748 dnl --------------------------------------------------------------
 749 dnl
 750 dnl [ The ability to build the RTS and libraries as separate DLLs used
 751 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 752 dnl   and build system would be required to bring it back again.)
 753 dnl   Hence, exposing it as an option is false advertisement, so better
 754 dnl   disable it to avoid confusion (but leave it commented-out rather
 755 dnl   than removed in order to remind ourselves to bring back the
 756 dnl   feature at some stage.) ]
 757 dnl
 758 dnl AC_ARG_ENABLE(win32-dlls,
 759 dnl [  --enable-win32-dlls
 760 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 761 dnl         construction of DLLs containing ghc-compiled code.
 762 dnl ],
 763 dnl [
 764 dnl case $HostOS_CPP in
 765 dnl cygwin32) ;;
 766 dnl mingw32)  ;;
 767 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 768 dnl       exit 1
 769 dnl       ;;
 770 dnl esac
 771 dnl EnableWin32DLLs=YES
 772 dnl ],
 773 dnl [EnableWin32DLLs=NO]
 774 dnl )
 775 dnl AC_SUBST(EnableWin32DLLs)
 776 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 777 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 778 dnl fi
 779
 780 dnl ** Enable the building of the ObjectIO?
 781 dnl --------------------------------------------------------------
 782 AC_ARG_ENABLE(objectio,
 783 [AC_HELP_STRING([--enable-objectio],
 784 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 785 [ if test x"$enableval" = x"yes"; then
 786         GhcLibsWithObjectIO=YES
 787   else
 788         GhcLibsWithObjectIO=NO
 789   fi
 790 ],
 791 [GhcLibsWithObjectIO=NO]
 792 )
 793 AC_SUBST(GhcLibsWithObjectIO)
 794
 795 dnl ** .NET interop support?
 796 dnl --------------------------------------------------------------
 797 AC_ARG_ENABLE(dotnet,
 798 [AC_HELP_STRING([--enable-dotnet],
 799 [Build .NET interop layer. [default=no]])],
 800 [ if test x"$enableval" = x"yes"; then
 801         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 802   else
 803         DotnetSupport=NO
 804   fi],
 805 [DotnetSupport=NO]
 806 )
 807 AC_SUBST(DotnetSupport)
 808
 809 dnl --------------------------------------------------------------
 810 dnl End of configure script option section
 811 dnl --------------------------------------------------------------
 812
 813
 814 dnl --------------------------------------------------------------
 815 dnl * General configuration checks
 816 dnl --------------------------------------------------------------
 817
 818 dnl ** Can the unix package be built?
 819 dnl --------------------------------------------------------------
 820
 821 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 822    GhcLibsWithUnix=NO
 823 else
 824    GhcLibsWithUnix=YES
 825 fi
 826 AC_SUBST([GhcLibsWithUnix])
 827
 828 dnl ** does #! work?
 829 AC_SYS_INTERPRETER()
 830
 831 dnl ** look for `perl', but only in /bin on Windows
 832 case $HostOS_CPP in
 833 cygwin32|mingw32)
 834       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 835       if test -z "$PerlCmd"; then
 836          echo "You must install the version of Perl shipped with GHC"
 837          echo "(or a compatible one) in /bin."
 838          exit 1
 839       fi
 840    ;;
 841 *)
 842    AC_PATH_PROG(PerlCmd,perl)
 843    if test -z "$PerlCmd"; then
 844       echo "You must install perl before you can continue"
 845       echo "Perhaps it is already installed, but not in your PATH?"
 846       exit 1
 847    else
 848    FPTOOLS_CHECK_PERL_VERSION
 849    fi
 850    ;;
 851 esac
 852
 853 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 854 FPTOOLS_SHEBANG_PERL
 855
 856 dnl ** check for Python
 857 AC_PATH_PROG(PythonCmd,python)
 858
 859 dnl ** look for GCC and find out which version
 860 dnl     Figure out which C compiler to use.  Gcc is preferred.
 861 dnl     If gcc, make sure it's at least 2.1
 862 dnl
 863 FP_HAVE_GCC
 864 FP_MINGW_GCC
 865 FP_GCC_NEEDS_NO_OMIT_LFPTR
 866 FP_GCC_HAS_NO_UNIT_AT_A_TIME
 867
 868 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 869 AC_PROG_CPP
 870
 871 dnl ** Without optimization some INLINE trickery fails for GHCi
 872 SRC_CC_OPTS="-O"
 873
 874 dnl ** Try to add -mno-cygwin to the C compiler options
 875 FP_CHECK_FLAG([-mno-cygwin], [
 876 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 877 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 878 AC_SUBST(SRC_CC_OPTS)
 879
 880 dnl ** figure out how to do context diffs
 881 FP_PROG_CONTEXT_DIFF
 882
 883 dnl ** Find find command (for Win32's benefit)
 884 FP_PROG_FIND
 885
 886 dnl ** Find sort command (for the benefit of Win32 environs)
 887 FP_PROG_SORT
 888
 889 dnl ** figure out how to do a BSD-ish install
 890 AC_PROG_INSTALL
 891
 892 dnl If you can run configure, you certainly have /bin/sh
 893 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 894
 895 dnl ** how to invoke `ar' and `ranlib'
 896 FP_PROG_AR_NEEDS_RANLIB
 897 FP_PROG_AR_SUPPORTS_INPUT
 898
 899 dnl ** Check to see whether ln -s works
 900 AC_PROG_LN_S
 901
 902
 903 dnl ** Find the path to sed
 904 AC_PATH_PROG(SedCmd,sed)
 905
 906
 907 dnl ** check for time command
 908 AC_PATH_PROG(TimeCmd,time)
 909
 910 dnl ** check for tar
 911 dnl   if GNU tar is named gtar, look for it first.
 912 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 913
 914 dnl ** check for DocBook toolchain
 915 FP_CHECK_DOCBOOK_DTD
 916 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl /usr/local/share/xsl/docbook /sw/share/xml/xsl/docbook-xsl])
 917 FP_PROG_FO_PROCESSOR
 918
 919 dnl ** check for ghc-pkg command
 920 FP_PROG_GHC_PKG
 921
 922 AC_ARG_WITH(greencard,
 923 [AC_HELP_STRING([--with-greencard=ARG],
 924         [Use ARG as the path to greencard  [default=autodetct]])],
 925 [
 926 GreenCardCmd=$withval;
 927 FPTOOLS_GREENCARD(3.00)
 928 ]
 929 )
 930
 931 dnl ** check for installed happy binary + version
 932 dnl    (don't do it if we're booting from .hc files though.)
 933 if test "$BootingFromHc" = "NO"; then
 934 FPTOOLS_HAPPY
 935 fi;
 936
 937 dnl ** check for installed haddock
 938 FPTOOLS_HADDOCK
 939
 940 dnl ** check for installed alex binary + version
 941 dnl    (don't do it if we're booting from .hc files though.)
 942 if test "$BootingFromHc" = "NO"; then
 943 FPTOOLS_ALEX
 944 fi;
 945
 946 dnl --------------------------------------------------
 947 dnl ### program checking section ends here ###
 948 dnl --------------------------------------------------
 949
 950 dnl --------------------------------------------------
 951 dnl * Platform header file and syscall feature tests
 952 dnl ### checking the state of the local header files and syscalls ###
 953
 954 dnl ** check for full ANSI header (.h) files
 955 AC_HEADER_STDC
 956
 957 dnl ** Enable large file support.  NB. do this before testing the type of
 958 dnl    off_t, because it will affect the result of that test.
 959 AC_SYS_LARGEFILE
 960
 961 dnl ** check for specific header (.h) files that we are interested in
 962 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])
 963
 964 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 965 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 966
 967 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 968   GhcLibsWithReadline=YES
 969   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 970 else
 971   GhcLibsWithReadline=NO
 972   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 973 fi
 974 AC_SUBST(GhcLibsWithReadline)
 975
 976 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 977 AC_HEADER_TIME
 978
 979 dnl ** do we have long longs?
 980 AC_CHECK_TYPES([long long])
 981
 982 dnl ** what are the sizes of various types
 983 AC_CHECK_SIZEOF(char,               1)
 984 AC_CHECK_SIZEOF(double,             8)
 985 AC_CHECK_SIZEOF(float,              4)
 986 AC_CHECK_SIZEOF(int,                4)
 987 AC_CHECK_SIZEOF(long,               4)
 988 if test "$ac_cv_type_long_long" = yes; then
 989 AC_CHECK_SIZEOF(long long,          8)
 990 fi
 991 AC_CHECK_SIZEOF(short,              2)
 992 AC_CHECK_SIZEOF(unsigned char,      1)
 993 AC_CHECK_SIZEOF(unsigned int,       4)
 994 AC_CHECK_SIZEOF(unsigned long,      4)
 995 if test "$ac_cv_type_long_long" = yes; then
 996 AC_CHECK_SIZEOF(unsigned long long, 8)
 997 fi
 998 AC_CHECK_SIZEOF(unsigned short,     2)
 999 AC_CHECK_SIZEOF(void *,             4)
1000
1001 dnl ** what are alignment constraints on various types
1002 FP_CHECK_ALIGNMENT(char)
1003 FP_CHECK_ALIGNMENT(double)
1004 FP_CHECK_ALIGNMENT(float)
1005 FP_CHECK_ALIGNMENT(int)
1006 FP_CHECK_ALIGNMENT(long)
1007 if test "$ac_cv_type_long_long" = yes; then
1008 FP_CHECK_ALIGNMENT(long long)
1009 fi
1010 FP_CHECK_ALIGNMENT(short)
1011 FP_CHECK_ALIGNMENT(unsigned char)
1012 FP_CHECK_ALIGNMENT(unsigned int)
1013 FP_CHECK_ALIGNMENT(unsigned long)
1014 if test "$ac_cv_type_long_long" = yes; then
1015 FP_CHECK_ALIGNMENT(unsigned long long)
1016 fi
1017 FP_CHECK_ALIGNMENT(unsigned short)
1018 FP_CHECK_ALIGNMENT(void *)
1019
1020 FP_CHECK_FUNC([WinExec],
1021   [@%:@include <windows.h>], [WinExec("",0)])
1022
1023 FP_CHECK_FUNC([GetModuleFileName],
1024   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1025
1026 dnl ** check return type of signal handlers
1027 dnl Foo: assumes we can use prototypes.
1028 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1029 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1030 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1031 dnl #include <signal.h>
1032 dnl #ifdef signal
1033 dnl #undef signal
1034 dnl #endif
1035 dnl void (*signal (int, void (*)(int)))(int);
1036 dnl ]],
1037 dnl [[int i;]])],
1038 dnl [ac_cv_type_signal_handler=void_int],
1039 dnl [ac_cv_type_signal_handler=int_void])])
1040 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1041 dnl AC_DEFINE(VOID_INT_SIGNALS)
1042 dnl fi
1043
1044 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1045 AC_TYPE_SIGNAL
1046 if test "$ac_cv_type_signal" = void; then
1047   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).])
1048 fi
1049
1050 dnl ** check for more functions
1051 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1052 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r])
1053 dnl ** For ghc/rts/gmp:
1054 AC_CHECK_FUNCS([getpagesize])
1055
1056 dnl ** check whether this machine has gmp3 installed
1057 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1058   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1059     HaveLibGmp=NO; LibGmp=not-installed))
1060 AC_SUBST(HaveLibGmp)
1061 AC_SUBST(LibGmp)
1062
1063 dnl ** (Mac OS X only: check for GMP.framework)
1064 HaveFrameworkGMP=NO
1065 case $HostPlatform in
1066 *-apple-darwin)
1067     AC_MSG_CHECKING([for GMP.framework])
1068     save_libs="$LIBS"
1069     LIBS="-framework GMP"
1070     AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkGMP=YES,)
1071     if test $HaveFrameworkGMP = YES; then
1072       AC_DEFINE([HAVE_FRAMEWORK_GMP], [1], [Define to 1 if GMP.framework is installed (Mac OS X only).])
1073     fi;
1074     LIBS="$save_libs"
1075     AC_MSG_RESULT([$HaveFrameworkGMP])
1076     ;;
1077 esac
1078 AC_SUBST(HaveFrameworkGMP)
1079
1080 dnl ** check for mingwex library
1081 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1082 AC_SUBST(HaveLibMingwEx)
1083
1084 if test $HaveLibMingwEx = YES ; then
1085   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1086 fi
1087
1088 if test "$HaveLibGmp" = "NO"; then
1089 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1090 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1091 fi;
1092 fi;
1093
1094 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1095 dnl    the order of these tests matters: bfd needs liberty
1096 AC_CHECK_LIB(iberty, xmalloc)
1097 AC_CHECK_LIB(bfd,    bfd_init)
1098
1099 dnl ** check for math library
1100 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
1101 if test x"$fp_libm_not_needed" = xdunno; then
1102    AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
1103 fi
1104 AC_SUBST([LIBM])
1105
1106 dnl ################################################################
1107 dnl Check for libraries
1108 dnl ################################################################
1109
1110 dnl ** check whether we need -ldl to get dlopen()
1111
1112 AC_CHECK_LIB(dl, dlopen,
1113     [HaveLibDL=YES
1114      AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1115      LIBS="$LIBS -ldl"],
1116     [HaveLibDL=NO])
1117 AC_SUBST(HaveLibDL)
1118
1119 dnl --------------------------------------------------
1120 dnl * Miscellaneous feature tests
1121 dnl --------------------------------------------------
1122
1123 dnl ** can we get alloca?
1124 AC_FUNC_ALLOCA
1125
1126 dnl ** Working vfork?
1127 AC_FUNC_FORK
1128
1129 dnl ** determine whether or not const works
1130 AC_C_CONST
1131
1132 dnl ** are we big endian?
1133 AC_C_BIGENDIAN
1134
1135 dnl ** check for leading underscores in symbol names
1136 FP_LEADING_UNDERSCORE
1137
1138 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
1139 FP_PROG_LD_X
1140 FP_PROG_LD_IS_GNU
1141
1142 dnl ** check for Apple-style dead-stripping support
1143 dnl    (.subsections-via-symbols assembler directive)
1144
1145
1146 AC_MSG_CHECKING(for .subsections_via_symbols)
1147 AC_COMPILE_IFELSE(
1148     [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
1149     [AC_MSG_RESULT(yes)
1150      AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
1151                [Define to 1 if Apple-style dead-stripping is supported.])
1152     ],
1153     [AC_MSG_RESULT(no)])
1154
1155 dnl *** check for GNU non-executable stack note support (ELF only)
1156 dnl     (.section .note.GNU-stack,"",@progbits)
1157
1158 AC_MSG_CHECKING(for GNU non-executable stack support)
1159 AC_COMPILE_IFELSE(
1160     [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
1161     [AC_MSG_RESULT(yes)
1162      AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
1163                [Define to 1 if GNU non-executable stack notes are supported.])
1164     ],
1165     [AC_MSG_RESULT(no)])
1166
1167 dnl ** check for librt
1168 AC_CHECK_LIB(rt, clock_gettime)
1169 AC_CHECK_FUNCS(clock_gettime)
1170
1171 dnl ** check for Apple's "interesting" long double compatibility scheme
1172 AC_MSG_CHECKING(for printf$LDBLStub)
1173 AC_TRY_LINK_FUNC(printf$LSBLStub,
1174     [
1175         AC_MSG_RESULT(yes)
1176         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
1177             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
1178     ],
1179     [
1180         AC_MSG_RESULT(no)
1181         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
1182             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
1183     ])
1184
1185 # test for GTK+
1186 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
1187 if test -n "$GTK_CONFIG"; then
1188   if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
1189     GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
1190   else
1191     AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
1192     GTK_CONFIG=
1193   fi
1194 fi
1195 AC_SUBST([GTK_CONFIG])
1196
1197 AC_CONFIG_FILES([mk/config.mk ghc.spec docs/users_guide/ug-book.xml])
1198 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1199 AC_OUTPUT