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