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([fptools build system], [1.0], [cvs-fptools@haskell.org], [fptools])
  17
  18 # First off, a distrib sanity check..
  19 AC_CONFIG_SRCDIR([mk/config.mk.in])
  20
  21 dnl * We require autoconf version 2.52
  22 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
  23 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
  24 AC_PREREQ([2.52])
  25
  26 dnl * Declare subdirectories that have a private configure script
  27 dnl
  28 dnl After the toplevel configuration is complete, the script will recurse into
  29 dnl these subdirectories if they exist. The use of a cache file makes repeated
  30 dnl checks cheap.
  31 AC_CONFIG_SUBDIRS([ghc libraries])
  32
  33 # -------------------------------------------------------------------------
  34 # Prepare to generate the following header files
  35 #
  36 #
  37 AC_CONFIG_HEADER(mk/config.h)
  38
  39 # No, semi-sadly, we don't do `--srcdir'...
  40 if test x"$srcdir" != 'x.' ; then
  41     echo "This configuration does not support the \`--srcdir' option.."
  42     exit 1
  43 fi
  44
  45 dnl--------------------------------------------------------------------
  46 dnl * Choose host(/target/build) platform
  47 dnl--------------------------------------------------------------------
  48
  49 dnl Guess host/target/build platform(s) if necessary.
  50 AC_CANONICAL_TARGET
  51
  52 # "$host" defaults to "$target"
  53 if test "x$host" = xNONE ; then
  54     host=$target
  55 fi
  56
  57 dnl ** canonicalize platform names
  58 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  59 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  60 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  61
  62 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  63     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  64     exit 1
  65 fi
  66
  67 exeext=''
  68 #
  69 # The following will be more difficult when we *are* cross-compiling.
  70 # Suitable names to slam in *_CPP are in platform.h.in.
  71 # We also record the architecture, vendor, and operating system (OS)
  72 # separately.
  73 case $HostPlatform in
  74 alpha*-dec-osf[[12]]*)
  75         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  76         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  77         BuildPlatform=alpha-dec-osf1  # hack
  78         HostPlatform_CPP='alpha_dec_osf1'
  79         HostArch_CPP='alpha'
  80         HostVendor_CPP='dec'
  81         HostOS_CPP='osf1'
  82         ;;
  83 alpha*-dec-osf[[345]]*)
  84         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  85         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  86         BuildPlatform=alpha-dec-osf3  # hack
  87         HostPlatform_CPP='alpha_dec_osf3'
  88         HostArch_CPP='alpha'
  89         HostVendor_CPP='dec'
  90         HostOS_CPP='osf3'
  91         ;;
  92 alpha*-unknown-linux*)
  93         HostPlatform=alpha-unknown-linux
  94         TargetPlatform=alpha-unknown-linux
  95         BuildPlatform=alpha-unknown-linux
  96         HostPlatform_CPP='alpha_unknown_linux'
  97         HostArch_CPP='alpha'
  98         HostVendor_CPP='unknown'
  99         HostOS_CPP='linux'
 100         ;;
 101 alpha*-unknown-freebsd*)
 102         HostPlatform=alpha-unknown-freebsd
 103         TargetPlatform=alpha-unknown-freebsd
 104         BuildPlatform=alpha-unknown-freebsd
 105         HostPlatform_CPP='alpha_unknown_freebsd'
 106         HostArch_CPP='alpha'
 107         HostVendor_CPP='unknown'
 108         HostOS_CPP='freebsd'
 109         ;;
 110 alpha*-unknown-openbsd*)
 111         HostPlatform=alpha-unknown-openbsd
 112         TargetPlatform=alpha-unknown-openbsd
 113         BuildPlatform=alpha-unknown-openbsd
 114         HostPlatform_CPP='alpha_unknown_openbsd'
 115         HostArch_CPP='alpha'
 116         HostVendor_CPP='unknown'
 117         HostOS_CPP='openbsd'
 118         ;;
 119 amd64-*-openbsd*|x86_64-*-openbsd*)
 120         HostPlatform=x86_64-unknown-openbsd
 121         TargetPlatform=x86_64-unknown-openbsd
 122         BuildPlatform=x86_64-unknown-openbsd
 123         HostPlatform_CPP='x86_64_unknown_openbsd'
 124         HostArch_CPP='x86_64'
 125         HostVendor_CPP='unknown'
 126         HostOS_CPP='openbsd'
 127         ;;
 128 arm*-linux*)
 129         HostPlatform=arm-unknown-linux # hack again
 130         TargetPlatform=arm-unknown-linux
 131         BuildPlatform=arm-unknown-linux
 132         HostPlatform_CPP='arm_unknown_linux'
 133         HostArch_CPP='arm'
 134         HostVendor_CPP='unknown'
 135         HostOS_CPP='linux'
 136         ;;
 137 arm*-openbsd*)
 138         HostPlatform=arm-unknown-openbsd
 139         TargetPlatform=arm-unknown-openbsd
 140         BuildPlatform=arm-unknown-openbsd
 141         HostPlatform_CPP='arm_unknown_openbsd'
 142         HostArch_CPP='arm'
 143         HostVendor_CPP='unknown'
 144         HostOS_CPP='openbsd'
 145         ;;
 146 hppa*-*-linux*)
 147         HostPlatform=hppa-unknown-linux # hack again
 148         TargetPlatform=hppa-unknown-linux
 149         BuildPlatform=hppa-unknown-linux
 150         HostPlatform_CPP='hppa_unknown_linux'
 151         HostArch_CPP='hppa'
 152         HostVendor_CPP='unknown'
 153         HostOS_CPP='linux'
 154         ;;
 155 hppa*-*-openbsd*)
 156         HostPlatform=hppa-unknown-openbsd # hack again
 157         TargetPlatform=hppa-unknown-openbsd
 158         BuildPlatform=hppa-unknown-openbsd
 159         HostPlatform_CPP='hppa_unknown_openbsd'
 160         HostArch_CPP='hppa'
 161         HostVendor_CPP='unknown'
 162         HostOS_CPP='openbsd'
 163         ;;
 164 hppa1.1-hp-hpux*)
 165         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 166         TargetPlatform=hppa1.1-hp-hpux
 167         BuildPlatform=hppa1.1-hp-hpux
 168         HostPlatform_CPP='hppa1_1_hp_hpux'
 169         HostArch_CPP='hppa1_1'
 170         HostVendor_CPP='hp'
 171         HostOS_CPP='hpux'
 172         ;;
 173 i[[3456]]86-*-linuxaout*)
 174         HostPlatform=i386-unknown-linuxaout   # hack again
 175         TargetPlatform=i386-unknown-linuxaout
 176         BuildPlatform=i386-unknown-linuxaout
 177         HostPlatform_CPP='i386_unknown_linuxaout'
 178         HostArch_CPP='i386'
 179         HostVendor_CPP='unknown'
 180         HostOS_CPP='linuxaout'
 181         ;;
 182 i[[3456]]86-*-linux*)
 183         HostPlatform=i386-unknown-linux # hack again
 184         TargetPlatform=i386-unknown-linux
 185         BuildPlatform=i386-unknown-linux
 186         HostPlatform_CPP='i386_unknown_linux'
 187         HostArch_CPP='i386'
 188         HostVendor_CPP='unknown'
 189         HostOS_CPP='linux'
 190         ;;
 191 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 192         HostPlatform=i386-unknown-freebsd # hack again
 193         TargetPlatform=i386-unknown-freebsd
 194         BuildPlatform=i386-unknown-freebsd
 195         HostPlatform_CPP='i386_unknown_freebsd'
 196         HostArch_CPP='i386'
 197         HostVendor_CPP='unknown'
 198         HostOS_CPP='freebsd'
 199         ;;
 200 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 201         HostPlatform=i386-unknown-freebsd2 # hack again
 202         TargetPlatform=i386-unknown-freebsd2
 203         BuildPlatform=i386-unknown-freebsd2
 204         HostPlatform_CPP='i386_unknown_freebsd2'
 205         HostArch_CPP='i386'
 206         HostVendor_CPP='unknown'
 207         HostOS_CPP='freebsd2'
 208         ;;
 209 i[[3456]]86-*-netbsd*)
 210         HostPlatform=i386-unknown-netbsd # hack again
 211         TargetPlatform=i386-unknown-netbsd
 212         BuildPlatform=i386-unknown-netbsd
 213         HostPlatform_CPP='i386_unknown_netbsd'
 214         HostArch_CPP='i386'
 215         HostVendor_CPP='unknown'
 216         HostOS_CPP='netbsd'
 217         ;;
 218 i[[3456]]86-*-openbsd*)
 219         HostPlatform=i386-unknown-openbsd # hack again
 220         TargetPlatform=i386-unknown-openbsd
 221         BuildPlatform=i386-unknown-openbsd
 222         HostPlatform_CPP='i386_unknown_openbsd'
 223         HostArch_CPP='i386'
 224         HostVendor_CPP='unknown'
 225         HostOS_CPP='openbsd'
 226         ;;
 227 i[[3456]]86-*-solaris2*)
 228         HostPlatform=i386-unknown-solaris2 # hack again
 229         TargetPlatform=i386-unknown-solaris2
 230         BuildPlatform=i386-unknown-solaris2
 231         HostPlatform_CPP='i386_unknown_solaris2'
 232         HostArch_CPP='i386'
 233         HostVendor_CPP='unknown'
 234         HostOS_CPP='solaris2'
 235         ;;
 236 i[[3456]]86-*-cygwin*)
 237         HostPlatform=i386-unknown-cygwin32 # hack again
 238         TargetPlatform=i386-unknown-cygwin32
 239         BuildPlatform=i386-unknown-cygwin32
 240         HostPlatform_CPP='i386_unknown_cygwin32'
 241         HostArch_CPP='i386'
 242         HostVendor_CPP='unknown'
 243         HostOS_CPP='cygwin32'
 244         exeext='.exe'
 245         ;;
 246 i[[3456]]86-*-mingw32*)
 247         HostPlatform=i386-unknown-mingw32 # hack again
 248         TargetPlatform=i386-unknown-mingw32
 249         BuildPlatform=i386-unknown-mingw32
 250         HostPlatform_CPP='i386_unknown_mingw32'
 251         HostArch_CPP='i386'
 252         HostVendor_CPP='unknown'
 253         HostOS_CPP='mingw32'
 254         exeext='.exe'
 255         ;;
 256 ia64-*-linux*)
 257         HostPlatform=ia64-unknown-linux # hack again
 258         TargetPlatform=ia64-unknown-linux
 259         BuildPlatform=ia64-unknown-linux
 260         HostPlatform_CPP='ia64_unknown_linux'
 261         HostArch_CPP='ia64'
 262         HostVendor_CPP='unknown'
 263         HostOS_CPP='linux'
 264         ;;
 265 x86_64-*-linux*)
 266         HostPlatform=x86_64-unknown-linux
 267         TargetPlatform=x86_64-unknown-linux
 268         BuildPlatform=x86_64-unknown-linux
 269         HostPlatform_CPP='x86_64_unknown_linux'
 270         HostArch_CPP='x86_64'
 271         HostVendor_CPP='unknown'
 272         HostOS_CPP='linux'
 273         ;;
 274 m68k-*-linux*)
 275         HostPlatform=m68k-unknown-linux # hack again
 276         TargetPlatform=m68k-unknown-linux
 277         BuildPlatform=m68k-unknown-linux
 278         HostPlatform_CPP='m68k_unknown_linux'
 279         HostArch_CPP='m68k'
 280         HostVendor_CPP='unknown'
 281         HostOS_CPP='linux'
 282         ;;
 283 m68k-next-nextstep2)
 284         HostPlatform_CPP='m68k_next_nextstep2'
 285         HostArch_CPP='m68k'
 286         HostVendor_CPP='next'
 287         HostOS_CPP='nextstep2'
 288         ;;
 289 m68k-next-nextstep3)
 290         HostPlatform_CPP='m68k_next_nextstep3'
 291         HostArch_CPP='m68k'
 292         HostVendor_CPP='next'
 293         HostOS_CPP='nextstep3'
 294         ;;
 295 i[[3456]]86-next-nextstep3)
 296         HostPlatform=i386-next-nextstep3 # hack again
 297         TargetPlatform=i386-next-nextstep3
 298         BuildPlatform=i386-next-nextstep3
 299         HostPlatform_CPP='i386_next_nextstep3'
 300         HostArch_CPP='i386'
 301         HostVendor_CPP='next'
 302         HostOS_CPP='nextstep3'
 303         ;;
 304 m68k-*-openbsd*)
 305         HostPlatform=m68k-unknown-openbsd
 306         TargetPlatform=m68k-unknown-openbsd
 307         BuildPlatform=m68k-unknown-openbsd
 308         HostPlatform_CPP='m68k_unknown_openbsd'
 309         HostArch_CPP='m68k'
 310         HostVendor_CPP='unknown'
 311         HostOS_CPP='openbsd'
 312         ;;
 313 m68k-*-netbsd*)
 314         HostPlatform=m68k-unknown-netbsd
 315         TargetPlatform=m68k-unknown-netbsd
 316         BuildPlatform=m68k-unknown-netbsd
 317         HostPlatform_CPP='m68k_unknown_netbsd'
 318         HostArch_CPP='m68k'
 319         HostVendor_CPP='unknown'
 320         HostOS_CPP='netbsd'
 321         ;;
 322 m68k-sun-sunos4*)
 323         HostPlatform=m68k-sun-sunos4
 324         TargetPlatform=m68k-sun-sunos4 #hack
 325         BuildPlatform=m68k-sun-sunos4 #hack
 326         HostPlatform_CPP='m68k_sun_sunos4'
 327         HostArch_CPP='m68k'
 328         HostVendor_CPP='sun'
 329         HostOS_CPP='sunos4'
 330         ;;
 331 m88k-*-openbsd*)
 332         HostPlatform=m88k-unknown-openbsd
 333         TargetPlatform=m88k-unknown-openbsd
 334         BuildPlatform=m88k-unknown-openbsd
 335         HostPlatform_CPP='m88k_unknown_openbsd'
 336         HostArch_CPP='m88k'
 337         HostVendor_CPP='unknown'
 338         HostOS_CPP='openbsd'
 339         ;;
 340 mips-*-linux*)
 341         HostPlatform=mips-unknown-linux # hack again
 342         TargetPlatform=mips-unknown-linux
 343         BuildPlatform=mips-unknown-linux
 344         HostPlatform_CPP='mips_unknown_linux'
 345         HostArch_CPP='mips'
 346         HostVendor_CPP='unknown'
 347         HostOS_CPP='linux'
 348         ;;
 349 mips-dec-ultrix*)
 350         HostPlatform_CPP='mips_dec_ultrix'
 351         HostArch_CPP='mipsel'   # NB a little different
 352         HostVendor_CPP='dec'
 353         HostOS_CPP='ultrix'
 354         ;;
 355 mips-sgi-irix*)
 356         HostPlatform=mips-sgi-irix
 357         TargetPlatform=mips-sgi-irix #hack
 358         BuildPlatform=mips-sgi-irix #hack
 359         HostPlatform_CPP='mips_sgi_irix'
 360         HostArch_CPP='mipseb'   # NB a little different
 361         HostVendor_CPP='sgi'
 362         HostOS_CPP='irix'
 363         ;;
 364 rs6000-ibm-aix*)
 365         HostPlatform=rs6000-ibm-aix
 366         TargetPlatform=rs6000-ibm-aix #hack
 367         BuildPlatform=rs6000-ibm-aix #hack
 368         HostPlatform_CPP='rs6000_ibm_aix'
 369         HostArch_CPP='rs6000'
 370         HostVendor_CPP='ibm'
 371         HostOS_CPP='aix'
 372         ;;
 373 powerpc-ibm-aix*)
 374         HostPlatform=powerpc-ibm-aix
 375         TargetPlatform=powerpc-ibm-aix #hack
 376         BuildPlatform=powerpc-ibm-aix #hack
 377         HostPlatform_CPP='powerpc_ibm_aix'
 378         HostArch_CPP='powerpc'
 379         HostVendor_CPP='ibm'
 380         HostOS_CPP='aix'
 381         ;;
 382 powerpc-apple-darwin*)
 383         HostPlatform=powerpc-apple-darwin
 384         TargetPlatform=powerpc-apple-darwin #hack
 385         BuildPlatform=powerpc-apple-darwin #hack
 386         HostPlatform_CPP='powerpc_apple_darwin'
 387         HostArch_CPP='powerpc'
 388         HostVendor_CPP='apple'
 389         HostOS_CPP='darwin'
 390         ;;
 391 powerpc-unknown-linux*)
 392         HostPlatform=powerpc-unknown-linux
 393         TargetPlatform=powerpc-unknown-linux
 394         BuildPlatform=powerpc-unknown-linux
 395         HostPlatform_CPP='powerpc_unknown_linux'
 396         HostArch_CPP='powerpc'
 397         HostVendor_CPP='unknown'
 398         HostOS_CPP='linux'
 399         ;;
 400 powerpc-unknown-openbsd*)
 401         HostPlatform=powerpc-unknown-openbsd
 402         TargetPlatform=powerpc-unknown-openbsd
 403         BuildPlatform=powerpc-unknown-openbsd
 404         HostPlatform_CPP='powerpc_unknown_openbsd'
 405         HostArch_CPP='powerpc'
 406         HostVendor_CPP='unknown'
 407         HostOS_CPP='openbsd'
 408         ;;
 409 powerpc64-unknown-linux*)
 410         HostPlatform=powerpc64-unknown-linux
 411         TargetPlatform=powerpc64-unknown-linux
 412         BuildPlatform=powerpc64-unknown-linux
 413         HostPlatform_CPP='powerpc64_unknown_linux'
 414         HostArch_CPP='powerpc64'
 415         HostVendor_CPP='unknown'
 416         HostOS_CPP='linux'
 417         ;;
 418
 419 s390-ibm-linux*)
 420        HostPlatform=s390-ibm-linux
 421        TargetPlatform=s390-ibm-linux #hack
 422        BuildPlatform=s390-ibm-linux #hack
 423         HostPlatform_CPP='s390_ibm_linux'
 424         HostArch_CPP='s390'
 425         HostVendor_CPP='ibm'
 426         HostOS_CPP='linux'
 427         ;;
 428 sparc-sun-sunos4*)
 429         HostPlatform=sparc-sun-sunos4
 430         TargetPlatform=sparc-sun-sunos4 #hack
 431         BuildPlatform=sparc-sun-sunos4 #hack
 432         HostPlatform_CPP='sparc_sun_sunos4'
 433         HostArch_CPP='sparc'
 434         HostVendor_CPP='sun'
 435         HostOS_CPP='sunos4'
 436         ;;
 437 sparc-sun-solaris2*)
 438         HostPlatform=sparc-sun-solaris2
 439         TargetPlatform=sparc-sun-solaris2 #hack
 440         BuildPlatform=sparc-sun-solaris2 #hack
 441         HostPlatform_CPP='sparc_sun_solaris2'
 442         HostArch_CPP='sparc'
 443         HostVendor_CPP='sun'
 444         HostOS_CPP='solaris2'
 445         ;;
 446 sparc*-linux*)
 447         HostPlatform=sparc-unknown-linux
 448         TargetPlatform=sparc-unknown-linux
 449         BuildPlatform=sparc-unknown-linux
 450         HostPlatform_CPP='sparc_unknown_linux'
 451         HostArch_CPP='sparc'
 452         HostVendor_CPP='unknown'
 453         HostOS_CPP='linux'
 454         ;;
 455 sparc-*-openbsd*)
 456         HostPlatform=sparc-unknown-openbsd
 457         TargetPlatform=sparc-unknown-openbsd
 458         BuildPlatform=sparc-unknown-openbsd
 459         HostPlatform_CPP='sparc_unknown_openbsd'
 460         HostArch_CPP='sparc'
 461         HostVendor_CPP='unknown'
 462         HostOS_CPP='openbsd'
 463         ;;
 464 sparc64-*-openbsd*)
 465         HostPlatform=sparc64-unknown-openbsd
 466         TargetPlatform=sparc64-unknown-openbsd
 467         BuildPlatform=sparc64-unknown-openbsd
 468         HostPlatform_CPP='sparc64_unknown_openbsd'
 469         HostArch_CPP='sparc64'
 470         HostVendor_CPP='unknown'
 471         HostOS_CPP='openbsd'
 472         ;;
 473 vax-*-openbsd*)
 474         HostPlatform=vax-unknown-openbsd
 475         TargetPlatform=vax-unknown-openbsd
 476         BuildPlatform=vax-unknown-openbsd
 477         HostPlatform_CPP='vax_unknown_openbsd'
 478         HostArch_CPP='vax'
 479         HostVendor_CPP='unknown'
 480         HostOS_CPP='openbsd'
 481         ;;
 482 *)
 483         echo "Unrecognised platform: $HostPlatform"
 484         exit 1
 485         ;;
 486 esac
 487 echo "Canonicalised to: $HostPlatform"
 488 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 489 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 490
 491 BuildPlatform_CPP=$HostPlatform_CPP
 492 TargetPlatform_CPP=$HostPlatform_CPP
 493 BuildArch_CPP=$HostArch_CPP
 494 TargetArch_CPP=$HostArch_CPP
 495 BuildOS_CPP=$HostOS_CPP
 496 HostOS_Full=$host_os
 497 TargetOS_CPP=$HostOS_CPP
 498 BuildVendor_CPP=$HostVendor_CPP
 499 TargetVendor_CPP=$HostVendor_CPP
 500
 501 AC_SUBST(BuildPlatform)
 502 AC_SUBST(HostPlatform)
 503 AC_SUBST(TargetPlatform)
 504 AC_SUBST(HostPlatform_CPP)
 505 AC_SUBST(BuildPlatform_CPP)
 506 AC_SUBST(TargetPlatform_CPP)
 507
 508 AC_SUBST(HostArch_CPP)
 509 AC_SUBST(BuildArch_CPP)
 510 AC_SUBST(TargetArch_CPP)
 511
 512 AC_SUBST(HostOS_CPP)
 513 AC_SUBST(HostOS_Full)
 514 AC_SUBST(BuildOS_CPP)
 515 AC_SUBST(TargetOS_CPP)
 516
 517 AC_SUBST(HostVendor_CPP)
 518 AC_SUBST(BuildVendor_CPP)
 519 AC_SUBST(TargetVendor_CPP)
 520
 521 AC_SUBST(exeext)
 522
 523 dnl --------------------------------------------------------------
 524 dnl * Calculate absolute path to build tree
 525 dnl --------------------------------------------------------------
 526
 527 AC_MSG_CHECKING(for path to top of build tree)
 528
 529 hardtop=`pwd`
 530
 531 dnl Remove common automounter nonsense
 532 dnl
 533 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
 534
 535 dnl Find 'hardtop_plat', the native format for 'hardtop'
 536 dnl (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
 537 dnl
 538 dnl Note OSTYPE: On Cygwin we need to use 'cygpath' to convert /cygdrive/c/foo to c:/foo
 539 dnl              but we must not do that if we aren't building using Cygwin (notably msys),
 540 dnl              because cygpath doesn't exist.  It seems that 'bash' sets OSTYPE to 'cygwin'
 541 dnl              or 'msys' respectively, but cygwin's 'sh' does not.  So we hackily assume
 542 dnl              that if the shell hasn't set it to 'msys' then we must be in Cygwin.  Sigh.
 543 dnl
 544 dnl              The Right Thing is probably to test $BuildPlatform instead, but we are sloppy
 545 dnl              about setting that correctly at the moment, so we just work around for now.
 546 dnl
 547 dnl              The quotes round "$(OSTYPE)" are essential, for the Cygwin-sh case where OSTYPE
 548 dnl              is not set.
 549 case $HostPlatform in
 550   i386-unknown-mingw32 | i386-unknown-cygwin32)
 551         if test "${OSTYPE}" != "msys"
 552           then
 553             # convert $hardtop to a path that mingw will understand too
 554             cyghardtop=${hardtop}
 555             hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
 556             hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
 557           else
 558             hardtop_plat=${hardtop}
 559         fi
 560         ;;
 561   *)
 562         hardtop_plat=${hardtop}
 563         ;;
 564 esac
 565 AC_SUBST(hardtop)
 566 AC_SUBST(hardtop_plat)
 567
 568 AC_MSG_RESULT(${hardtop})
 569
 570 dnl --------------------------------------------------------------
 571 dnl * Project specific configuration options
 572 dnl --------------------------------------------------------------
 573 dnl What follows is a bunch of options that can either be configured
 574 dnl through command line options to the configure script or by
 575 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 576 dnl use either is considered a Feature.
 577
 578 dnl ** What command to use to compile compiler sources ?
 579 dnl --------------------------------------------------------------
 580
 581 AC_ARG_WITH([ghc],
 582 [AC_HELP_STRING([--with-ghc=ARG],
 583   [Use ARG as the path to GHC  [default=autodetect]])],
 584   [WithGhc="$withval"],
 585   [if test "$GHC" = ""; then
 586     AC_PATH_PROG([GHC], [ghc])
 587   fi
 588   WithGhc="$GHC"])
 589 AC_SUBST([WithGhc])
 590
 591 AC_ARG_WITH(hc,
 592 [AC_HELP_STRING([--with-hc=ARG],
 593         [Use ARG as the path to the compiler for compiling ordinary
 594          Haskell code  (default= value of --with-ghc)])],
 595 [WithHc="$withval"],
 596 [WithHc=$WithGhc]
 597 )
 598 AC_SUBST(WithHc)
 599
 600 if test "$WithGhc" != ""; then
 601   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 602   AC_SUBST(GhcVersion)dnl
 603   AC_SUBST(GhcMajVersion)dnl
 604   AC_SUBST(GhcMinVersion)dnl
 605   AC_SUBST(GhcPatchLevel)dnl
 606 fi
 607
 608 AC_PATH_PROGS(NHC,nhc nhc98)
 609 AC_PATH_PROG(HBC,hbc)
 610
 611 dnl ** Which gcc to use?
 612 dnl --------------------------------------------------------------
 613 AC_ARG_WITH(gcc,
 614 [AC_HELP_STRING([--with-gcc=ARG],
 615         [Use ARG as the path to GCC  [default=autodetect]])],
 616 [WhatGccIsCalled="$withval"
 617  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 618     then
 619        if test "${OSTYPE}" != "msys"
 620          then
 621          # Canonicalise to <drive>:/path/to/gcc
 622          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 623        fi
 624  fi;
 625  CC="$withval"
 626  export CC
 627  ],
 628 [WhatGccIsCalled="gcc"]
 629 )
 630 AC_SUBST(WhatGccIsCalled)
 631
 632 dnl ** Booting from .hc files?
 633 dnl --------------------------------------------------------------
 634 AC_ARG_ENABLE(hc-boot,
 635 [AC_HELP_STRING([--enable-hc-boot],
 636 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 637  (This option is mostly of interest to porters.) [default=no]])],
 638 [ if test x"$enableval" = x"yes"; then
 639         BootingFromHc=YES
 640   else
 641         BootingFromHc=NO
 642   fi
 643 ],
 644 [BootingFromHc=NO]
 645 )
 646 AC_SUBST(BootingFromHc)
 647
 648 dnl ** Booting from unregisterised .hc files?
 649 dnl --------------------------------------------------------------
 650 AC_ARG_ENABLE(hc-boot-unregisterised,
 651 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 652 [ With --enable-hc-boot, treat the intermediate .hc files as
 653  unregisterised rather than registerised code.
 654  (This option is mostly of interest to porters.) [default=no]])],
 655 [ if test x"$enableval" = x"yes"; then
 656         BootingFromUnregisterisedHc=YES
 657   else
 658         BootingFromUnregisterisedHc=NO
 659   fi
 660 ],
 661 [BootingFromUnregisterisedHc=NO]
 662 )
 663 AC_SUBST(BootingFromUnregisterisedHc)
 664
 665 if test "$BootingFromHc" = "NO"; then
 666 if test "$BootingFromUnregisterisedHc" = "YES"; then
 667 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 668 fi;
 669 fi;
 670
 671 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 672 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
 673 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 674 fi;
 675
 676 dnl ** --enable-threaded-rts (not used any more)
 677 dnl --------------------------------------------------------------
 678 AC_ARG_ENABLE(threaded-rts,
 679 [AC_HELP_STRING([--enable-threaded-rts],
 680 [DEPRECATED (backwards compatibility only). [default=no]])],
 681 [ if test x"$enableval" = x"yes"; then
 682         ThreadedRts=YES
 683   else
 684         ThreadedRts=NO
 685   fi
 686 ],
 687 [ThreadedRts=NO]
 688 )
 689 AC_SUBST(ThreadedRts)
 690
 691 dnl ** Enable the construction of Win32 DLLs?
 692 dnl --------------------------------------------------------------
 693 dnl
 694 dnl [ The ability to build the RTS and libraries as separate DLLs used
 695 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 696 dnl   and build system would be required to bring it back again.)
 697 dnl   Hence, exposing it as an option is false advertisement, so better
 698 dnl   disable it to avoid confusion (but leave it commented-out rather
 699 dnl   than removed in order to remind ourselves to bring back the
 700 dnl   feature at some stage.) ]
 701 dnl
 702 dnl AC_ARG_ENABLE(win32-dlls,
 703 dnl [  --enable-win32-dlls
 704 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 705 dnl     construction of DLLs containing ghc-compiled code.
 706 dnl ],
 707 dnl [
 708 dnl case $HostOS_CPP in
 709 dnl cygwin32) ;;
 710 dnl mingw32)  ;;
 711 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 712 dnl       exit 1
 713 dnl       ;;
 714 dnl esac
 715 dnl EnableWin32DLLs=YES
 716 dnl ],
 717 dnl [EnableWin32DLLs=NO]
 718 dnl )
 719 dnl AC_SUBST(EnableWin32DLLs)
 720 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 721 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 722 dnl fi
 723
 724 dnl ** Enable the building of the ObjectIO?
 725 dnl --------------------------------------------------------------
 726 AC_ARG_ENABLE(objectio,
 727 [AC_HELP_STRING([--enable-objectio],
 728 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 729 [ if test x"$enableval" = x"yes"; then
 730         GhcLibsWithObjectIO=YES
 731   else
 732         GhcLibsWithObjectIO=NO
 733   fi
 734 ],
 735 [GhcLibsWithObjectIO=NO]
 736 )
 737 AC_SUBST(GhcLibsWithObjectIO)
 738
 739 dnl ** .NET interop support?
 740 dnl --------------------------------------------------------------
 741 AC_ARG_ENABLE(dotnet,
 742 [AC_HELP_STRING([--enable-dotnet],
 743 [Build .NET interop layer. [default=no]])],
 744 [ if test x"$enableval" = x"yes"; then
 745         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 746   else
 747         DotnetSupport=NO
 748   fi],
 749 [DotnetSupport=NO]
 750 )
 751 AC_SUBST(DotnetSupport)
 752
 753 dnl --------------------------------------------------------------
 754 dnl End of configure script option section
 755 dnl --------------------------------------------------------------
 756
 757
 758 dnl --------------------------------------------------------------
 759 dnl * General configuration checks
 760 dnl --------------------------------------------------------------
 761
 762 dnl ** Can the unix package be built?
 763 dnl --------------------------------------------------------------
 764
 765 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 766    GhcLibsWithUnix=NO
 767 else
 768    GhcLibsWithUnix=YES
 769 fi
 770 AC_SUBST([GhcLibsWithUnix])
 771
 772 dnl ** does #! work?
 773 AC_SYS_INTERPRETER()
 774
 775 dnl ** look for `perl', but only in /bin on Windows
 776 case $HostOS_CPP in
 777 cygwin32|mingw32)
 778       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 779       if test -z "$PerlCmd"; then
 780          echo "You must install the version of Perl shipped with GHC"
 781          echo "(or a compatible one) in /bin."
 782          exit 1
 783       fi
 784    ;;
 785 *)
 786    AC_PATH_PROG(PerlCmd,perl)
 787    if test -z "$PerlCmd"; then
 788       echo "You must install perl before you can continue"
 789       echo "Perhaps it is already installed, but not in your PATH?"
 790       exit 1
 791    else
 792    FPTOOLS_CHECK_PERL_VERSION
 793    fi
 794    ;;
 795 esac
 796
 797 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 798 FPTOOLS_SHEBANG_PERL
 799
 800 dnl ** check for Python
 801 AC_PATH_PROG(PythonCmd,python)
 802
 803 dnl ** look for GCC and find out which version
 804 dnl     Figure out which C compiler to use.  Gcc is preferred.
 805 dnl     If gcc, make sure it's at least 2.1
 806 dnl
 807 FP_HAVE_GCC
 808 FP_MINGW_GCC
 809
 810 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 811 AC_PROG_CPP
 812
 813 dnl ** Without optimization some INLINE trickery fails for GHCi
 814 SRC_CC_OPTS="-O"
 815
 816 dnl ** Try to add -mno-cygwin to the C compiler options
 817 FP_CHECK_FLAG([-mno-cygwin], [
 818 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 819 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 820 AC_SUBST(SRC_CC_OPTS)
 821
 822 dnl ** figure out how to do context diffs
 823 FP_PROG_CONTEXT_DIFF
 824
 825 dnl ** Find find command (for Win32's benefit)
 826 FP_PROG_FIND
 827
 828 dnl ** figure out how to do a BSD-ish install
 829 AC_PROG_INSTALL
 830
 831 dnl If you can run configure, you certainly have /bin/sh
 832 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 833
 834 dnl ** how to invoke `ar' and `ranlib'
 835 FP_PROG_AR_NEEDS_RANLIB
 836 FP_PROG_AR_SUPPORTS_INPUT
 837
 838 dnl ** Check to see whether ln -s works
 839 AC_PROG_LN_S
 840
 841
 842 dnl ** Find the path to sed
 843 AC_PATH_PROG(SedCmd,sed)
 844
 845
 846 dnl ** check for time command
 847 AC_PATH_PROG(TimeCmd,time)
 848
 849 dnl ** check for tar
 850 dnl   if GNU tar is named gtar, look for it first.
 851 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 852
 853 dnl ** check for DocBook toolchain
 854 FP_CHECK_DOCBOOK_DTD
 855 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl])
 856 FP_PROG_FO_PROCESSOR
 857
 858 dnl ** check for ghc-pkg command
 859 FP_PROG_GHC_PKG
 860
 861 AC_ARG_WITH(greencard,
 862 [AC_HELP_STRING([--with-greencard=ARG],
 863         [Use ARG as the path to greencard  [default=autodetct]])],
 864 [
 865 GreenCardCmd=$withval;
 866 FPTOOLS_GREENCARD(3.00)
 867 ]
 868 )
 869
 870 AC_ARG_ENABLE(src-tree-happy,
 871 [AC_HELP_STRING([--enable-src-tree-happy],
 872         [Build and use source tree (fptools/happy) version of Happy.
 873          [default=autodetect]])],
 874 [ if test x"$enableval" = x"yes"; then
 875         UseSrcTreeHappy=YES
 876   else
 877         UseSrcTreeHappy=NO
 878   fi
 879 ],
 880 [UseSrcTreeHappy=NO]
 881 )
 882 dnl ** check for installed happy binary + version
 883 dnl    (don't do it if we're booting from .hc files though.)
 884 if test "$BootingFromHc" = "NO"; then
 885 FPTOOLS_HAPPY
 886 fi;
 887
 888 AC_ARG_ENABLE(src-tree-haddock,
 889 [AC_HELP_STRING([--enable-src-tree-haddock],
 890         [Build and use source tree (fptools/haddock) version of Haddock.
 891          [default=autodetect]])],
 892 [ if test x"$enableval" = x"yes"; then
 893         UseSrcTreeHaddock=YES
 894   else
 895         UseSrcTreeHaddock=NO
 896   fi
 897 ],
 898 [UseSrcTreeHaddock=NO]
 899 )
 900 dnl ** check for installed haddock
 901 FPTOOLS_HADDOCK
 902
 903 AC_ARG_ENABLE(src-tree-alex,
 904 [AC_HELP_STRING([--enable-src-tree-alex],
 905         [Build and use source tree (fptools/alex) version of Alex.
 906          [default=autodetect]])],
 907 [ if test x"$enableval" = x"yes"; then
 908         UseSrcTreeAlex=YES
 909   else
 910         UseSrcTreeAlex=NO
 911   fi
 912 ],
 913 [UseSrcTreeAlex=NO]
 914 )
 915 dnl ** check for installed alex binary + version
 916 dnl    (don't do it if we're booting from .hc files though.)
 917 if test "$BootingFromHc" = "NO"; then
 918 FPTOOLS_ALEX
 919 fi;
 920
 921 dnl --------------------------------------------------
 922 dnl ### program checking section ends here ###
 923 dnl --------------------------------------------------
 924
 925 dnl --------------------------------------------------
 926 dnl * Platform header file and syscall feature tests
 927 dnl ### checking the state of the local header files and syscalls ###
 928
 929 dnl ** check for full ANSI header (.h) files
 930 AC_HEADER_STDC
 931
 932 dnl ** Enable large file support.  NB. do this before testing the type of
 933 dnl    off_t, because it will affect the result of that test.
 934 AC_SYS_LARGEFILE
 935
 936 dnl ** check for specific header (.h) files that we are interested in
 937 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])
 938
 939 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 940 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 941
 942 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 943   GhcLibsWithReadline=YES
 944   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 945 else
 946   GhcLibsWithReadline=NO
 947   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 948 fi
 949 AC_SUBST(GhcLibsWithReadline)
 950
 951 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 952 AC_HEADER_TIME
 953
 954 dnl ** check for POSIX regex
 955 HavePosixRegex=NO
 956 AC_CHECK_HEADERS([regex.h], [AC_CHECK_FUNCS(regcomp, [HavePosixRegex=YES])])
 957 AC_SUBST(HavePosixRegex)
 958
 959 dnl ** how do we get a timezone name, and UTC offset ?
 960 AC_STRUCT_TIMEZONE
 961
 962 dnl ** do we have altzone?
 963 FP_DECL_ALTZONE
 964
 965 dnl ** do we have long longs?
 966 AC_CHECK_TYPES([long long])
 967
 968 dnl ** what are the sizes of various types
 969 AC_CHECK_SIZEOF(char,               1)
 970 AC_CHECK_SIZEOF(double,             8)
 971 AC_CHECK_SIZEOF(float,              4)
 972 AC_CHECK_SIZEOF(int,                4)
 973 AC_CHECK_SIZEOF(long,               4)
 974 if test "$ac_cv_type_long_long" = yes; then
 975 AC_CHECK_SIZEOF(long long,          8)
 976 fi
 977 AC_CHECK_SIZEOF(short,              2)
 978 AC_CHECK_SIZEOF(unsigned char,      1)
 979 AC_CHECK_SIZEOF(unsigned int,       4)
 980 AC_CHECK_SIZEOF(unsigned long,      4)
 981 if test "$ac_cv_type_long_long" = yes; then
 982 AC_CHECK_SIZEOF(unsigned long long, 8)
 983 fi
 984 AC_CHECK_SIZEOF(unsigned short,     2)
 985 AC_CHECK_SIZEOF(void *,             4)
 986
 987 dnl ** what are alignment constraints on various types
 988 FP_CHECK_ALIGNMENT(char)
 989 FP_CHECK_ALIGNMENT(double)
 990 FP_CHECK_ALIGNMENT(float)
 991 FP_CHECK_ALIGNMENT(int)
 992 FP_CHECK_ALIGNMENT(long)
 993 if test "$ac_cv_type_long_long" = yes; then
 994 FP_CHECK_ALIGNMENT(long long)
 995 fi
 996 FP_CHECK_ALIGNMENT(short)
 997 FP_CHECK_ALIGNMENT(unsigned char)
 998 FP_CHECK_ALIGNMENT(unsigned int)
 999 FP_CHECK_ALIGNMENT(unsigned long)
1000 if test "$ac_cv_type_long_long" = yes; then
1001 FP_CHECK_ALIGNMENT(unsigned long long)
1002 fi
1003 FP_CHECK_ALIGNMENT(unsigned short)
1004 FP_CHECK_ALIGNMENT(void *)
1005
1006 FP_CHECK_FUNC([WinExec],
1007   [@%:@include <windows.h>], [WinExec("",0)])
1008
1009 FP_CHECK_FUNC([GetModuleFileName],
1010   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1011
1012 dnl ** check return type of signal handlers
1013 dnl Foo: assumes we can use prototypes.
1014 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1015 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1016 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1017 dnl #include <signal.h>
1018 dnl #ifdef signal
1019 dnl #undef signal
1020 dnl #endif
1021 dnl void (*signal (int, void (*)(int)))(int);
1022 dnl ]],
1023 dnl [[int i;]])],
1024 dnl [ac_cv_type_signal_handler=void_int],
1025 dnl [ac_cv_type_signal_handler=int_void])])
1026 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1027 dnl AC_DEFINE(VOID_INT_SIGNALS)
1028 dnl fi
1029
1030 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1031 AC_TYPE_SIGNAL
1032 if test "$ac_cv_type_signal" = void; then
1033   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).])
1034 fi
1035
1036 dnl ** check for more functions
1037 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1038 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times])
1039 dnl ** For ghc/rts/gmp:
1040 AC_CHECK_FUNCS([getpagesize])
1041
1042 dnl ** check whether this machine has gmp3 installed
1043 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1044   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1045     HaveLibGmp=NO; LibGmp=not-installed))
1046 AC_SUBST(HaveLibGmp)
1047 AC_SUBST(LibGmp)
1048
1049 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1050 HaveFrameworkHaskellSupport=NO
1051 if test $HostPlatform = "powerpc-apple-darwin"; then
1052  AC_MSG_CHECKING([for HaskellSupport.framework])
1053  save_libs="$LIBS"
1054  LIBS="-framework HaskellSupport"
1055  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1056  if test $HaveFrameworkHaskellSupport = YES; then
1057   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1058  fi;
1059  LIBS="$save_libs"
1060  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1061 fi;
1062 AC_SUBST(HaveFrameworkHaskellSupport)
1063
1064 dnl ** check for mingwex library
1065 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1066 AC_SUBST(HaveLibMingwEx)
1067
1068 if test $HaveLibMingwEx = YES ; then
1069   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1070 fi
1071
1072 if test "$HaveLibGmp" = "NO"; then
1073 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1074 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1075 fi;
1076 fi;
1077
1078 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1079 dnl    the order of these tests matters: bfd needs liberty
1080 AC_CHECK_LIB(iberty, xmalloc)
1081 AC_CHECK_LIB(bfd,    bfd_init)
1082
1083 dnl ** check for readline, for Hugs and hslibs' Readline
1084 dnl ncurses supersedes termcap and curses, but for compatibility,
1085 dnl we have to check for all...
1086 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1087   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1088     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1089       HaveLibTermcap=NO; LibTermcap=not-installed)))
1090
1091 if test $HaveLibTermcap = YES ; then
1092   LIBS="-l$LibTermcap $LIBS"
1093   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1094 fi
1095
1096 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1097   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1098   LibsReadline="readline $LibTermcap"
1099 else
1100   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1101   LibsReadline=
1102 fi
1103 AC_SUBST(LibsReadline)
1104
1105 if test "$HaveLibReadline"; then
1106   AC_CHECK_LIB(readline, rl_erase_empty_line,
1107     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1108     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1109   AC_CHECK_LIB(readline, rl_free_undo_list,
1110     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1111     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1112 else
1113   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1114   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1115 fi
1116
1117 dnl ** check for math library
1118 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"], [LIBM=])
1119 AC_SUBST([LIBM])
1120
1121 dnl ################################################################
1122 dnl Check for libraries
1123 dnl ################################################################
1124
1125 dnl ** check for libdl & RTLD_NEXT
1126
1127 dnl (Mac OS X only) ... but don't check if we already have the
1128 dnl HaskellSupport.framework
1129
1130 if test $HaveFrameworkHaskellSupport = YES; then
1131     HaveLibDL=NO
1132     HaveRtldNext=NO
1133     HaveRtldLocal=YES
1134     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1135     HaveRtldGlobal=YES
1136     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1137     HaveRtldNow=YES
1138     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1139     AC_SUBST(HaveLibDL)
1140     AC_SUBST(HaveRtldNext)
1141     AC_SUBST(HaveRtldLocal)
1142     AC_SUBST(HaveRtldGlobal)
1143     AC_SUBST(HaveRtldNow)
1144 else
1145     AC_CHECK_LIB(dl, dlopen,
1146         [HaveLibDL=YES
1147          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1148          LIBS="$LIBS -ldl"],
1149         [HaveLibDL=NO])
1150     AC_SUBST(HaveLibDL)
1151
1152     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1153     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1154     AC_EGREP_CPP(yes,
1155     [
1156      #include <dlfcn.h>
1157      #ifdef RTLD_NEXT
1158             yes
1159      #endif
1160     ], [
1161       AC_MSG_RESULT(yes)
1162       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1163       HaveRtldNext=YES
1164     ], [
1165       AC_MSG_RESULT(no)
1166       HaveRtldNext=NO
1167       ])
1168     AC_SUBST(HaveRtldNext)
1169
1170     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1171     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1172     AC_EGREP_CPP(yes,
1173     [
1174      #include <dlfcn.h>
1175      #ifdef RTLD_LOCAL
1176             yes
1177      #endif
1178     ], [
1179       AC_MSG_RESULT(yes)
1180       AC_DEFINE(HAVE_RTLDLOCAL)
1181       HaveRtldLocal=YES
1182     ], [
1183       AC_MSG_RESULT(no)
1184       HaveRtldLocal=NO
1185       ])
1186     AC_SUBST(HaveRtldLocal)
1187
1188     dnl ** RTLD_GLOBAL isn't available on openbsd
1189     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1190     AC_EGREP_CPP(yes,
1191     [
1192      #include <dlfcn.h>
1193      #ifdef RTLD_GLOBAL
1194             yes
1195      #endif
1196     ], [
1197       AC_MSG_RESULT(yes)
1198       AC_DEFINE(HAVE_RTLDGLOBAL)
1199       HaveRtldGlobal=YES
1200     ], [
1201       AC_MSG_RESULT(no)
1202       HaveRtldGlobal=NO
1203       ])
1204     AC_SUBST(HaveRtldGlobal)
1205
1206     dnl ** RTLD_NOW isn't available on openbsd
1207     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1208     AC_EGREP_CPP(yes,
1209     [
1210      #include <dlfcn.h>
1211      #ifdef RTLD_NOW
1212             yes
1213      #endif
1214     ], [
1215       AC_MSG_RESULT(yes)
1216       AC_DEFINE(HAVE_RTLDNOW)
1217       HaveRtldNow=YES
1218     ], [
1219       AC_MSG_RESULT(no)
1220       HaveRtldNow=NO
1221       ])
1222     AC_SUBST(HaveRtldNow)
1223 fi
1224
1225 dnl --------------------------------------------------
1226 dnl * Miscellaneous feature tests
1227 dnl --------------------------------------------------
1228
1229 dnl ** can we get alloca?
1230 AC_FUNC_ALLOCA
1231
1232 dnl ** Working vfork?
1233 AC_FUNC_FORK
1234
1235 dnl ** determine whether or not const works
1236 AC_C_CONST
1237
1238 dnl ** are we big endian?
1239 AC_C_BIGENDIAN
1240
1241 dnl ** check for leading underscores in symbol names
1242 FP_LEADING_UNDERSCORE
1243
1244 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
1245 FP_PROG_LD_X
1246 FP_PROG_LD_IS_GNU
1247
1248 dnl ** check for Apple-style dead-stripping support
1249 dnl    (.subsections-via-symbols assembler directive)
1250
1251
1252 AC_MSG_CHECKING(for .subsections_via_symbols)
1253 AC_TRY_COMPILE(,[__asm__ (".subsections_via_symbols");],
1254     [
1255         AC_MSG_RESULT(yes)
1256         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
1257             [Define to 1 if Apple-style dead-stripping is supported.])
1258     ],
1259     [
1260         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[0],
1261             [Define to 1 if Apple-style dead-stripping is supported.])
1262     ])
1263
1264 AC_CONFIG_FILES([mk/config.mk])
1265 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1266 AC_OUTPUT