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 # We don't support building in directories with spaces.
 571 case "$hardtop" in
 572   *' '*) AC_MSG_ERROR([
 573    The build system does not support building in a directory containing
 574    space characters.  Suggestion: move the build tree somewhere else.])
 575  ;;
 576 esac
 577
 578 dnl --------------------------------------------------------------
 579 dnl * Project specific configuration options
 580 dnl --------------------------------------------------------------
 581 dnl What follows is a bunch of options that can either be configured
 582 dnl through command line options to the configure script or by
 583 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 584 dnl use either is considered a Feature.
 585
 586 dnl ** What command to use to compile compiler sources ?
 587 dnl --------------------------------------------------------------
 588
 589 AC_ARG_WITH([ghc],
 590 [AC_HELP_STRING([--with-ghc=ARG],
 591   [Use ARG as the path to GHC  [default=autodetect]])],
 592   [WithGhc="$withval"],
 593   [if test "$GHC" = ""; then
 594     AC_PATH_PROG([GHC], [ghc])
 595   fi
 596   WithGhc="$GHC"])
 597 AC_SUBST([WithGhc])
 598
 599 AC_ARG_WITH(hc,
 600 [AC_HELP_STRING([--with-hc=ARG],
 601         [Use ARG as the path to the compiler for compiling ordinary
 602          Haskell code  (default= value of --with-ghc)])],
 603 [WithHc="$withval"],
 604 [WithHc=$WithGhc]
 605 )
 606 AC_SUBST(WithHc)
 607
 608 if test "$WithGhc" != ""; then
 609   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 610   AC_SUBST(GhcVersion)dnl
 611   AC_SUBST(GhcMajVersion)dnl
 612   AC_SUBST(GhcMinVersion)dnl
 613   AC_SUBST(GhcPatchLevel)dnl
 614 fi
 615
 616 AC_PATH_PROGS(NHC,nhc nhc98)
 617 AC_PATH_PROG(HBC,hbc)
 618
 619 dnl ** Which gcc to use?
 620 dnl --------------------------------------------------------------
 621 AC_ARG_WITH(gcc,
 622 [AC_HELP_STRING([--with-gcc=ARG],
 623         [Use ARG as the path to GCC  [default=autodetect]])],
 624 [WhatGccIsCalled="$withval"
 625  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 626     then
 627        if test "${OSTYPE}" != "msys"
 628          then
 629          # Canonicalise to <drive>:/path/to/gcc
 630          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 631        fi
 632  fi;
 633  CC="$withval"
 634  export CC
 635  ],
 636 [WhatGccIsCalled="gcc"]
 637 )
 638 AC_SUBST(WhatGccIsCalled)
 639
 640 dnl ** Booting from .hc files?
 641 dnl --------------------------------------------------------------
 642 AC_ARG_ENABLE(hc-boot,
 643 [AC_HELP_STRING([--enable-hc-boot],
 644 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 645  (This option is mostly of interest to porters.) [default=no]])],
 646 [ if test x"$enableval" = x"yes"; then
 647         BootingFromHc=YES
 648   else
 649         BootingFromHc=NO
 650   fi
 651 ],
 652 [BootingFromHc=NO]
 653 )
 654 AC_SUBST(BootingFromHc)
 655
 656 dnl ** Booting from unregisterised .hc files?
 657 dnl --------------------------------------------------------------
 658 AC_ARG_ENABLE(hc-boot-unregisterised,
 659 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 660 [ With --enable-hc-boot, treat the intermediate .hc files as
 661  unregisterised rather than registerised code.
 662  (This option is mostly of interest to porters.) [default=no]])],
 663 [ if test x"$enableval" = x"yes"; then
 664         BootingFromUnregisterisedHc=YES
 665   else
 666         BootingFromUnregisterisedHc=NO
 667   fi
 668 ],
 669 [BootingFromUnregisterisedHc=NO]
 670 )
 671 AC_SUBST(BootingFromUnregisterisedHc)
 672
 673 if test "$BootingFromHc" = "NO"; then
 674 if test "$BootingFromUnregisterisedHc" = "YES"; then
 675 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 676 fi;
 677 fi;
 678
 679 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 680 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
 681 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 682 fi;
 683
 684 dnl ** --enable-threaded-rts (not used any more)
 685 dnl --------------------------------------------------------------
 686 AC_ARG_ENABLE(threaded-rts,
 687 [AC_HELP_STRING([--enable-threaded-rts],
 688 [DEPRECATED (backwards compatibility only). [default=no]])],
 689 [ if test x"$enableval" = x"yes"; then
 690         ThreadedRts=YES
 691   else
 692         ThreadedRts=NO
 693   fi
 694 ],
 695 [ThreadedRts=NO]
 696 )
 697 AC_SUBST(ThreadedRts)
 698
 699 dnl ** Enable the construction of Win32 DLLs?
 700 dnl --------------------------------------------------------------
 701 dnl
 702 dnl [ The ability to build the RTS and libraries as separate DLLs used
 703 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 704 dnl   and build system would be required to bring it back again.)
 705 dnl   Hence, exposing it as an option is false advertisement, so better
 706 dnl   disable it to avoid confusion (but leave it commented-out rather
 707 dnl   than removed in order to remind ourselves to bring back the
 708 dnl   feature at some stage.) ]
 709 dnl
 710 dnl AC_ARG_ENABLE(win32-dlls,
 711 dnl [  --enable-win32-dlls
 712 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 713 dnl     construction of DLLs containing ghc-compiled code.
 714 dnl ],
 715 dnl [
 716 dnl case $HostOS_CPP in
 717 dnl cygwin32) ;;
 718 dnl mingw32)  ;;
 719 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 720 dnl       exit 1
 721 dnl       ;;
 722 dnl esac
 723 dnl EnableWin32DLLs=YES
 724 dnl ],
 725 dnl [EnableWin32DLLs=NO]
 726 dnl )
 727 dnl AC_SUBST(EnableWin32DLLs)
 728 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 729 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 730 dnl fi
 731
 732 dnl ** Enable the building of the ObjectIO?
 733 dnl --------------------------------------------------------------
 734 AC_ARG_ENABLE(objectio,
 735 [AC_HELP_STRING([--enable-objectio],
 736 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 737 [ if test x"$enableval" = x"yes"; then
 738         GhcLibsWithObjectIO=YES
 739   else
 740         GhcLibsWithObjectIO=NO
 741   fi
 742 ],
 743 [GhcLibsWithObjectIO=NO]
 744 )
 745 AC_SUBST(GhcLibsWithObjectIO)
 746
 747 dnl ** .NET interop support?
 748 dnl --------------------------------------------------------------
 749 AC_ARG_ENABLE(dotnet,
 750 [AC_HELP_STRING([--enable-dotnet],
 751 [Build .NET interop layer. [default=no]])],
 752 [ if test x"$enableval" = x"yes"; then
 753         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 754   else
 755         DotnetSupport=NO
 756   fi],
 757 [DotnetSupport=NO]
 758 )
 759 AC_SUBST(DotnetSupport)
 760
 761 dnl --------------------------------------------------------------
 762 dnl End of configure script option section
 763 dnl --------------------------------------------------------------
 764
 765
 766 dnl --------------------------------------------------------------
 767 dnl * General configuration checks
 768 dnl --------------------------------------------------------------
 769
 770 dnl ** Can the unix package be built?
 771 dnl --------------------------------------------------------------
 772
 773 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 774    GhcLibsWithUnix=NO
 775 else
 776    GhcLibsWithUnix=YES
 777 fi
 778 AC_SUBST([GhcLibsWithUnix])
 779
 780 dnl ** does #! work?
 781 AC_SYS_INTERPRETER()
 782
 783 dnl ** look for `perl', but only in /bin on Windows
 784 case $HostOS_CPP in
 785 cygwin32|mingw32)
 786       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 787       if test -z "$PerlCmd"; then
 788          echo "You must install the version of Perl shipped with GHC"
 789          echo "(or a compatible one) in /bin."
 790          exit 1
 791       fi
 792    ;;
 793 *)
 794    AC_PATH_PROG(PerlCmd,perl)
 795    if test -z "$PerlCmd"; then
 796       echo "You must install perl before you can continue"
 797       echo "Perhaps it is already installed, but not in your PATH?"
 798       exit 1
 799    else
 800    FPTOOLS_CHECK_PERL_VERSION
 801    fi
 802    ;;
 803 esac
 804
 805 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 806 FPTOOLS_SHEBANG_PERL
 807
 808 dnl ** check for Python
 809 AC_PATH_PROG(PythonCmd,python)
 810
 811 dnl ** look for GCC and find out which version
 812 dnl     Figure out which C compiler to use.  Gcc is preferred.
 813 dnl     If gcc, make sure it's at least 2.1
 814 dnl
 815 FP_HAVE_GCC
 816 FP_MINGW_GCC
 817
 818 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 819 AC_PROG_CPP
 820
 821 dnl ** Without optimization some INLINE trickery fails for GHCi
 822 SRC_CC_OPTS="-O"
 823
 824 dnl ** Try to add -mno-cygwin to the C compiler options
 825 FP_CHECK_FLAG([-mno-cygwin], [
 826 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 827 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 828 AC_SUBST(SRC_CC_OPTS)
 829
 830 dnl ** figure out how to do context diffs
 831 FP_PROG_CONTEXT_DIFF
 832
 833 dnl ** Find find command (for Win32's benefit)
 834 FP_PROG_FIND
 835
 836 dnl ** figure out how to do a BSD-ish install
 837 AC_PROG_INSTALL
 838
 839 dnl If you can run configure, you certainly have /bin/sh
 840 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 841
 842 dnl ** how to invoke `ar' and `ranlib'
 843 FP_PROG_AR_NEEDS_RANLIB
 844 FP_PROG_AR_SUPPORTS_INPUT
 845
 846 dnl ** Check to see whether ln -s works
 847 AC_PROG_LN_S
 848
 849
 850 dnl ** Find the path to sed
 851 AC_PATH_PROG(SedCmd,sed)
 852
 853
 854 dnl ** check for time command
 855 AC_PATH_PROG(TimeCmd,time)
 856
 857 dnl ** check for tar
 858 dnl   if GNU tar is named gtar, look for it first.
 859 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 860
 861 dnl ** check for DocBook toolchain
 862 FP_CHECK_DOCBOOK_DTD
 863 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl /usr/local/share/xsl/docbook])
 864 FP_PROG_FO_PROCESSOR
 865
 866 dnl ** check for ghc-pkg command
 867 FP_PROG_GHC_PKG
 868
 869 AC_ARG_WITH(greencard,
 870 [AC_HELP_STRING([--with-greencard=ARG],
 871         [Use ARG as the path to greencard  [default=autodetct]])],
 872 [
 873 GreenCardCmd=$withval;
 874 FPTOOLS_GREENCARD(3.00)
 875 ]
 876 )
 877
 878 AC_ARG_ENABLE(src-tree-happy,
 879 [AC_HELP_STRING([--enable-src-tree-happy],
 880         [Build and use source tree (fptools/happy) version of Happy.
 881          [default=autodetect]])],
 882 [ if test x"$enableval" = x"yes"; then
 883         UseSrcTreeHappy=YES
 884   else
 885         UseSrcTreeHappy=NO
 886   fi
 887 ],
 888 [UseSrcTreeHappy=NO]
 889 )
 890 dnl ** check for installed happy binary + version
 891 dnl    (don't do it if we're booting from .hc files though.)
 892 if test "$BootingFromHc" = "NO"; then
 893 FPTOOLS_HAPPY
 894 fi;
 895
 896 AC_ARG_ENABLE(src-tree-haddock,
 897 [AC_HELP_STRING([--enable-src-tree-haddock],
 898         [Build and use source tree (fptools/haddock) version of Haddock.
 899          [default=autodetect]])],
 900 [ if test x"$enableval" = x"yes"; then
 901         UseSrcTreeHaddock=YES
 902   else
 903         UseSrcTreeHaddock=NO
 904   fi
 905 ],
 906 [UseSrcTreeHaddock=NO]
 907 )
 908 dnl ** check for installed haddock
 909 FPTOOLS_HADDOCK
 910
 911 AC_ARG_ENABLE(src-tree-alex,
 912 [AC_HELP_STRING([--enable-src-tree-alex],
 913         [Build and use source tree (fptools/alex) version of Alex.
 914          [default=autodetect]])],
 915 [ if test x"$enableval" = x"yes"; then
 916         UseSrcTreeAlex=YES
 917   else
 918         UseSrcTreeAlex=NO
 919   fi
 920 ],
 921 [UseSrcTreeAlex=NO]
 922 )
 923 dnl ** check for installed alex binary + version
 924 dnl    (don't do it if we're booting from .hc files though.)
 925 if test "$BootingFromHc" = "NO"; then
 926 FPTOOLS_ALEX
 927 fi;
 928
 929 dnl --------------------------------------------------
 930 dnl ### program checking section ends here ###
 931 dnl --------------------------------------------------
 932
 933 dnl --------------------------------------------------
 934 dnl * Platform header file and syscall feature tests
 935 dnl ### checking the state of the local header files and syscalls ###
 936
 937 dnl ** check for full ANSI header (.h) files
 938 AC_HEADER_STDC
 939
 940 dnl ** Enable large file support.  NB. do this before testing the type of
 941 dnl    off_t, because it will affect the result of that test.
 942 AC_SYS_LARGEFILE
 943
 944 dnl ** check for specific header (.h) files that we are interested in
 945 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])
 946
 947 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 948 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 949
 950 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 951   GhcLibsWithReadline=YES
 952   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 953 else
 954   GhcLibsWithReadline=NO
 955   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 956 fi
 957 AC_SUBST(GhcLibsWithReadline)
 958
 959 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 960 AC_HEADER_TIME
 961
 962 dnl ** how do we get a timezone name, and UTC offset ?
 963 AC_STRUCT_TIMEZONE
 964
 965 dnl ** do we have altzone?
 966 FP_DECL_ALTZONE
 967
 968 dnl ** do we have long longs?
 969 AC_CHECK_TYPES([long long])
 970
 971 dnl ** what are the sizes of various types
 972 AC_CHECK_SIZEOF(char,               1)
 973 AC_CHECK_SIZEOF(double,             8)
 974 AC_CHECK_SIZEOF(float,              4)
 975 AC_CHECK_SIZEOF(int,                4)
 976 AC_CHECK_SIZEOF(long,               4)
 977 if test "$ac_cv_type_long_long" = yes; then
 978 AC_CHECK_SIZEOF(long long,          8)
 979 fi
 980 AC_CHECK_SIZEOF(short,              2)
 981 AC_CHECK_SIZEOF(unsigned char,      1)
 982 AC_CHECK_SIZEOF(unsigned int,       4)
 983 AC_CHECK_SIZEOF(unsigned long,      4)
 984 if test "$ac_cv_type_long_long" = yes; then
 985 AC_CHECK_SIZEOF(unsigned long long, 8)
 986 fi
 987 AC_CHECK_SIZEOF(unsigned short,     2)
 988 AC_CHECK_SIZEOF(void *,             4)
 989
 990 dnl ** what are alignment constraints on various types
 991 FP_CHECK_ALIGNMENT(char)
 992 FP_CHECK_ALIGNMENT(double)
 993 FP_CHECK_ALIGNMENT(float)
 994 FP_CHECK_ALIGNMENT(int)
 995 FP_CHECK_ALIGNMENT(long)
 996 if test "$ac_cv_type_long_long" = yes; then
 997 FP_CHECK_ALIGNMENT(long long)
 998 fi
 999 FP_CHECK_ALIGNMENT(short)
1000 FP_CHECK_ALIGNMENT(unsigned char)
1001 FP_CHECK_ALIGNMENT(unsigned int)
1002 FP_CHECK_ALIGNMENT(unsigned long)
1003 if test "$ac_cv_type_long_long" = yes; then
1004 FP_CHECK_ALIGNMENT(unsigned long long)
1005 fi
1006 FP_CHECK_ALIGNMENT(unsigned short)
1007 FP_CHECK_ALIGNMENT(void *)
1008
1009 FP_CHECK_FUNC([WinExec],
1010   [@%:@include <windows.h>], [WinExec("",0)])
1011
1012 FP_CHECK_FUNC([GetModuleFileName],
1013   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1014
1015 dnl ** check return type of signal handlers
1016 dnl Foo: assumes we can use prototypes.
1017 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1018 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1019 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1020 dnl #include <signal.h>
1021 dnl #ifdef signal
1022 dnl #undef signal
1023 dnl #endif
1024 dnl void (*signal (int, void (*)(int)))(int);
1025 dnl ]],
1026 dnl [[int i;]])],
1027 dnl [ac_cv_type_signal_handler=void_int],
1028 dnl [ac_cv_type_signal_handler=int_void])])
1029 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1030 dnl AC_DEFINE(VOID_INT_SIGNALS)
1031 dnl fi
1032
1033 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1034 AC_TYPE_SIGNAL
1035 if test "$ac_cv_type_signal" = void; then
1036   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).])
1037 fi
1038
1039 dnl ** check for more functions
1040 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1041 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times])
1042 dnl ** For ghc/rts/gmp:
1043 AC_CHECK_FUNCS([getpagesize])
1044
1045 dnl ** check whether this machine has gmp3 installed
1046 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1047   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1048     HaveLibGmp=NO; LibGmp=not-installed))
1049 AC_SUBST(HaveLibGmp)
1050 AC_SUBST(LibGmp)
1051
1052 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1053 HaveFrameworkHaskellSupport=NO
1054 if test $HostPlatform = "powerpc-apple-darwin"; then
1055  AC_MSG_CHECKING([for HaskellSupport.framework])
1056  save_libs="$LIBS"
1057  LIBS="-framework HaskellSupport"
1058  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1059  if test $HaveFrameworkHaskellSupport = YES; then
1060   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1061  fi;
1062  LIBS="$save_libs"
1063  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1064 fi;
1065 AC_SUBST(HaveFrameworkHaskellSupport)
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 readline, for Hugs and hslibs' Readline
1087 dnl ncurses supersedes termcap and curses, but for compatibility,
1088 dnl we have to check for all...
1089 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1090   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1091     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1092       HaveLibTermcap=NO; LibTermcap=not-installed)))
1093
1094 if test $HaveLibTermcap = YES ; then
1095   LIBS="-l$LibTermcap $LIBS"
1096   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1097 fi
1098
1099 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1100   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1101   LibsReadline="readline $LibTermcap"
1102 else
1103   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1104   LibsReadline=
1105 fi
1106 AC_SUBST(LibsReadline)
1107
1108 if test "$HaveLibReadline"; then
1109   AC_CHECK_LIB(readline, rl_erase_empty_line,
1110     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1111     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1112   AC_CHECK_LIB(readline, rl_free_undo_list,
1113     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1114     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1115 else
1116   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1117   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1118 fi
1119
1120 dnl ** check for math library
1121 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"], [LIBM=])
1122 AC_SUBST([LIBM])
1123
1124 dnl ################################################################
1125 dnl Check for libraries
1126 dnl ################################################################
1127
1128 dnl ** check for libdl & RTLD_NEXT
1129
1130 dnl (Mac OS X only) ... but don't check if we already have the
1131 dnl HaskellSupport.framework
1132
1133 if test $HaveFrameworkHaskellSupport = YES; then
1134     HaveLibDL=NO
1135     HaveRtldNext=NO
1136     HaveRtldLocal=YES
1137     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1138     HaveRtldGlobal=YES
1139     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1140     HaveRtldNow=YES
1141     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1142     AC_SUBST(HaveLibDL)
1143     AC_SUBST(HaveRtldNext)
1144     AC_SUBST(HaveRtldLocal)
1145     AC_SUBST(HaveRtldGlobal)
1146     AC_SUBST(HaveRtldNow)
1147 else
1148     AC_CHECK_LIB(dl, dlopen,
1149         [HaveLibDL=YES
1150          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1151          LIBS="$LIBS -ldl"],
1152         [HaveLibDL=NO])
1153     AC_SUBST(HaveLibDL)
1154
1155     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1156     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1157     AC_EGREP_CPP(yes,
1158     [
1159      #include <dlfcn.h>
1160      #ifdef RTLD_NEXT
1161             yes
1162      #endif
1163     ], [
1164       AC_MSG_RESULT(yes)
1165       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1166       HaveRtldNext=YES
1167     ], [
1168       AC_MSG_RESULT(no)
1169       HaveRtldNext=NO
1170       ])
1171     AC_SUBST(HaveRtldNext)
1172
1173     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1174     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1175     AC_EGREP_CPP(yes,
1176     [
1177      #include <dlfcn.h>
1178      #ifdef RTLD_LOCAL
1179             yes
1180      #endif
1181     ], [
1182       AC_MSG_RESULT(yes)
1183       AC_DEFINE(HAVE_RTLDLOCAL)
1184       HaveRtldLocal=YES
1185     ], [
1186       AC_MSG_RESULT(no)
1187       HaveRtldLocal=NO
1188       ])
1189     AC_SUBST(HaveRtldLocal)
1190
1191     dnl ** RTLD_GLOBAL isn't available on openbsd
1192     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1193     AC_EGREP_CPP(yes,
1194     [
1195      #include <dlfcn.h>
1196      #ifdef RTLD_GLOBAL
1197             yes
1198      #endif
1199     ], [
1200       AC_MSG_RESULT(yes)
1201       AC_DEFINE(HAVE_RTLDGLOBAL)
1202       HaveRtldGlobal=YES
1203     ], [
1204       AC_MSG_RESULT(no)
1205       HaveRtldGlobal=NO
1206       ])
1207     AC_SUBST(HaveRtldGlobal)
1208
1209     dnl ** RTLD_NOW isn't available on openbsd
1210     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1211     AC_EGREP_CPP(yes,
1212     [
1213      #include <dlfcn.h>
1214      #ifdef RTLD_NOW
1215             yes
1216      #endif
1217     ], [
1218       AC_MSG_RESULT(yes)
1219       AC_DEFINE(HAVE_RTLDNOW)
1220       HaveRtldNow=YES
1221     ], [
1222       AC_MSG_RESULT(no)
1223       HaveRtldNow=NO
1224       ])
1225     AC_SUBST(HaveRtldNow)
1226 fi
1227
1228 dnl --------------------------------------------------
1229 dnl * Miscellaneous feature tests
1230 dnl --------------------------------------------------
1231
1232 dnl ** can we get alloca?
1233 AC_FUNC_ALLOCA
1234
1235 dnl ** Working vfork?
1236 AC_FUNC_FORK
1237
1238 dnl ** determine whether or not const works
1239 AC_C_CONST
1240
1241 dnl ** are we big endian?
1242 AC_C_BIGENDIAN
1243
1244 dnl ** check for leading underscores in symbol names
1245 FP_LEADING_UNDERSCORE
1246
1247 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
1248 FP_PROG_LD_X
1249 FP_PROG_LD_IS_GNU
1250
1251 dnl ** check for Apple-style dead-stripping support
1252 dnl    (.subsections-via-symbols assembler directive)
1253
1254
1255 AC_MSG_CHECKING(for .subsections_via_symbols)
1256 AC_TRY_COMPILE(,[__asm__ (".subsections_via_symbols");],
1257     [
1258         AC_MSG_RESULT(yes)
1259         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
1260             [Define to 1 if Apple-style dead-stripping is supported.])
1261     ],
1262     [
1263         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[0],
1264             [Define to 1 if Apple-style dead-stripping is supported.])
1265     ])
1266
1267 AC_CONFIG_FILES([mk/config.mk])
1268 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1269 AC_OUTPUT