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-*-gnu*)
 192         HostPlatform=i386-unknown-gnu
 193         TargetPlatform=i386-unknown-gnu
 194         BuildPlatform=i386-unknown-gnu
 195         HostPlatform_CPP=i386_unknown_gnu
 196         HostArch_CPP=i386
 197         HostVendor_CPP=unknown
 198         HostOS_CPP=gnu
 199         ;;
 200 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 201         HostPlatform=i386-unknown-freebsd # hack again
 202         TargetPlatform=i386-unknown-freebsd
 203         BuildPlatform=i386-unknown-freebsd
 204         HostPlatform_CPP='i386_unknown_freebsd'
 205         HostArch_CPP='i386'
 206         HostVendor_CPP='unknown'
 207         HostOS_CPP='freebsd'
 208         ;;
 209 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 210         HostPlatform=i386-unknown-freebsd2 # hack again
 211         TargetPlatform=i386-unknown-freebsd2
 212         BuildPlatform=i386-unknown-freebsd2
 213         HostPlatform_CPP='i386_unknown_freebsd2'
 214         HostArch_CPP='i386'
 215         HostVendor_CPP='unknown'
 216         HostOS_CPP='freebsd2'
 217         ;;
 218 i[[3456]]86-*-netbsd*)
 219         HostPlatform=i386-unknown-netbsd # hack again
 220         TargetPlatform=i386-unknown-netbsd
 221         BuildPlatform=i386-unknown-netbsd
 222         HostPlatform_CPP='i386_unknown_netbsd'
 223         HostArch_CPP='i386'
 224         HostVendor_CPP='unknown'
 225         HostOS_CPP='netbsd'
 226         ;;
 227 i[[3456]]86-*-openbsd*)
 228         HostPlatform=i386-unknown-openbsd # hack again
 229         TargetPlatform=i386-unknown-openbsd
 230         BuildPlatform=i386-unknown-openbsd
 231         HostPlatform_CPP='i386_unknown_openbsd'
 232         HostArch_CPP='i386'
 233         HostVendor_CPP='unknown'
 234         HostOS_CPP='openbsd'
 235         ;;
 236 i[[3456]]86-*-solaris2*)
 237         HostPlatform=i386-unknown-solaris2 # hack again
 238         TargetPlatform=i386-unknown-solaris2
 239         BuildPlatform=i386-unknown-solaris2
 240         HostPlatform_CPP='i386_unknown_solaris2'
 241         HostArch_CPP='i386'
 242         HostVendor_CPP='unknown'
 243         HostOS_CPP='solaris2'
 244         ;;
 245 i[[3456]]86-*-cygwin*)
 246         HostPlatform=i386-unknown-cygwin32 # hack again
 247         TargetPlatform=i386-unknown-cygwin32
 248         BuildPlatform=i386-unknown-cygwin32
 249         HostPlatform_CPP='i386_unknown_cygwin32'
 250         HostArch_CPP='i386'
 251         HostVendor_CPP='unknown'
 252         HostOS_CPP='cygwin32'
 253         exeext='.exe'
 254         ;;
 255 i[[3456]]86-*-mingw32*)
 256         HostPlatform=i386-unknown-mingw32 # hack again
 257         TargetPlatform=i386-unknown-mingw32
 258         BuildPlatform=i386-unknown-mingw32
 259         HostPlatform_CPP='i386_unknown_mingw32'
 260         HostArch_CPP='i386'
 261         HostVendor_CPP='unknown'
 262         HostOS_CPP='mingw32'
 263         exeext='.exe'
 264         ;;
 265 ia64-*-linux*)
 266         HostPlatform=ia64-unknown-linux # hack again
 267         TargetPlatform=ia64-unknown-linux
 268         BuildPlatform=ia64-unknown-linux
 269         HostPlatform_CPP='ia64_unknown_linux'
 270         HostArch_CPP='ia64'
 271         HostVendor_CPP='unknown'
 272         HostOS_CPP='linux'
 273         ;;
 274 x86_64-*-linux*)
 275         HostPlatform=x86_64-unknown-linux
 276         TargetPlatform=x86_64-unknown-linux
 277         BuildPlatform=x86_64-unknown-linux
 278         HostPlatform_CPP='x86_64_unknown_linux'
 279         HostArch_CPP='x86_64'
 280         HostVendor_CPP='unknown'
 281         HostOS_CPP='linux'
 282         ;;
 283 m68k-*-linux*)
 284         HostPlatform=m68k-unknown-linux # hack again
 285         TargetPlatform=m68k-unknown-linux
 286         BuildPlatform=m68k-unknown-linux
 287         HostPlatform_CPP='m68k_unknown_linux'
 288         HostArch_CPP='m68k'
 289         HostVendor_CPP='unknown'
 290         HostOS_CPP='linux'
 291         ;;
 292 m68k-next-nextstep2)
 293         HostPlatform_CPP='m68k_next_nextstep2'
 294         HostArch_CPP='m68k'
 295         HostVendor_CPP='next'
 296         HostOS_CPP='nextstep2'
 297         ;;
 298 m68k-next-nextstep3)
 299         HostPlatform_CPP='m68k_next_nextstep3'
 300         HostArch_CPP='m68k'
 301         HostVendor_CPP='next'
 302         HostOS_CPP='nextstep3'
 303         ;;
 304 i[[3456]]86-next-nextstep3)
 305         HostPlatform=i386-next-nextstep3 # hack again
 306         TargetPlatform=i386-next-nextstep3
 307         BuildPlatform=i386-next-nextstep3
 308         HostPlatform_CPP='i386_next_nextstep3'
 309         HostArch_CPP='i386'
 310         HostVendor_CPP='next'
 311         HostOS_CPP='nextstep3'
 312         ;;
 313 m68k-*-openbsd*)
 314         HostPlatform=m68k-unknown-openbsd
 315         TargetPlatform=m68k-unknown-openbsd
 316         BuildPlatform=m68k-unknown-openbsd
 317         HostPlatform_CPP='m68k_unknown_openbsd'
 318         HostArch_CPP='m68k'
 319         HostVendor_CPP='unknown'
 320         HostOS_CPP='openbsd'
 321         ;;
 322 m68k-*-netbsd*)
 323         HostPlatform=m68k-unknown-netbsd
 324         TargetPlatform=m68k-unknown-netbsd
 325         BuildPlatform=m68k-unknown-netbsd
 326         HostPlatform_CPP='m68k_unknown_netbsd'
 327         HostArch_CPP='m68k'
 328         HostVendor_CPP='unknown'
 329         HostOS_CPP='netbsd'
 330         ;;
 331 m68k-sun-sunos4*)
 332         HostPlatform=m68k-sun-sunos4
 333         TargetPlatform=m68k-sun-sunos4 #hack
 334         BuildPlatform=m68k-sun-sunos4 #hack
 335         HostPlatform_CPP='m68k_sun_sunos4'
 336         HostArch_CPP='m68k'
 337         HostVendor_CPP='sun'
 338         HostOS_CPP='sunos4'
 339         ;;
 340 m88k-*-openbsd*)
 341         HostPlatform=m88k-unknown-openbsd
 342         TargetPlatform=m88k-unknown-openbsd
 343         BuildPlatform=m88k-unknown-openbsd
 344         HostPlatform_CPP='m88k_unknown_openbsd'
 345         HostArch_CPP='m88k'
 346         HostVendor_CPP='unknown'
 347         HostOS_CPP='openbsd'
 348         ;;
 349 mips-*-linux*)
 350         HostPlatform=mips-unknown-linux # hack again
 351         TargetPlatform=mips-unknown-linux
 352         BuildPlatform=mips-unknown-linux
 353         HostPlatform_CPP='mips_unknown_linux'
 354         HostArch_CPP='mips'
 355         HostVendor_CPP='unknown'
 356         HostOS_CPP='linux'
 357         ;;
 358 mips-dec-ultrix*)
 359         HostPlatform_CPP='mips_dec_ultrix'
 360         HostArch_CPP='mipsel'   # NB a little different
 361         HostVendor_CPP='dec'
 362         HostOS_CPP='ultrix'
 363         ;;
 364 mips-sgi-irix*)
 365         HostPlatform=mips-sgi-irix
 366         TargetPlatform=mips-sgi-irix #hack
 367         BuildPlatform=mips-sgi-irix #hack
 368         HostPlatform_CPP='mips_sgi_irix'
 369         HostArch_CPP='mipseb'   # NB a little different
 370         HostVendor_CPP='sgi'
 371         HostOS_CPP='irix'
 372         ;;
 373 rs6000-ibm-aix*)
 374         HostPlatform=rs6000-ibm-aix
 375         TargetPlatform=rs6000-ibm-aix #hack
 376         BuildPlatform=rs6000-ibm-aix #hack
 377         HostPlatform_CPP='rs6000_ibm_aix'
 378         HostArch_CPP='rs6000'
 379         HostVendor_CPP='ibm'
 380         HostOS_CPP='aix'
 381         ;;
 382 powerpc-ibm-aix*)
 383         HostPlatform=powerpc-ibm-aix
 384         TargetPlatform=powerpc-ibm-aix #hack
 385         BuildPlatform=powerpc-ibm-aix #hack
 386         HostPlatform_CPP='powerpc_ibm_aix'
 387         HostArch_CPP='powerpc'
 388         HostVendor_CPP='ibm'
 389         HostOS_CPP='aix'
 390         ;;
 391 powerpc-apple-darwin*)
 392         HostPlatform=powerpc-apple-darwin
 393         TargetPlatform=powerpc-apple-darwin #hack
 394         BuildPlatform=powerpc-apple-darwin #hack
 395         HostPlatform_CPP='powerpc_apple_darwin'
 396         HostArch_CPP='powerpc'
 397         HostVendor_CPP='apple'
 398         HostOS_CPP='darwin'
 399         ;;
 400 powerpc-unknown-linux*)
 401         HostPlatform=powerpc-unknown-linux
 402         TargetPlatform=powerpc-unknown-linux
 403         BuildPlatform=powerpc-unknown-linux
 404         HostPlatform_CPP='powerpc_unknown_linux'
 405         HostArch_CPP='powerpc'
 406         HostVendor_CPP='unknown'
 407         HostOS_CPP='linux'
 408         ;;
 409 powerpc-unknown-openbsd*)
 410         HostPlatform=powerpc-unknown-openbsd
 411         TargetPlatform=powerpc-unknown-openbsd
 412         BuildPlatform=powerpc-unknown-openbsd
 413         HostPlatform_CPP='powerpc_unknown_openbsd'
 414         HostArch_CPP='powerpc'
 415         HostVendor_CPP='unknown'
 416         HostOS_CPP='openbsd'
 417         ;;
 418 powerpc64-unknown-linux*)
 419         HostPlatform=powerpc64-unknown-linux
 420         TargetPlatform=powerpc64-unknown-linux
 421         BuildPlatform=powerpc64-unknown-linux
 422         HostPlatform_CPP='powerpc64_unknown_linux'
 423         HostArch_CPP='powerpc64'
 424         HostVendor_CPP='unknown'
 425         HostOS_CPP='linux'
 426         ;;
 427
 428 s390-ibm-linux*)
 429        HostPlatform=s390-ibm-linux
 430        TargetPlatform=s390-ibm-linux #hack
 431        BuildPlatform=s390-ibm-linux #hack
 432         HostPlatform_CPP='s390_ibm_linux'
 433         HostArch_CPP='s390'
 434         HostVendor_CPP='ibm'
 435         HostOS_CPP='linux'
 436         ;;
 437 sparc-sun-sunos4*)
 438         HostPlatform=sparc-sun-sunos4
 439         TargetPlatform=sparc-sun-sunos4 #hack
 440         BuildPlatform=sparc-sun-sunos4 #hack
 441         HostPlatform_CPP='sparc_sun_sunos4'
 442         HostArch_CPP='sparc'
 443         HostVendor_CPP='sun'
 444         HostOS_CPP='sunos4'
 445         ;;
 446 sparc-sun-solaris2*)
 447         HostPlatform=sparc-sun-solaris2
 448         TargetPlatform=sparc-sun-solaris2 #hack
 449         BuildPlatform=sparc-sun-solaris2 #hack
 450         HostPlatform_CPP='sparc_sun_solaris2'
 451         HostArch_CPP='sparc'
 452         HostVendor_CPP='sun'
 453         HostOS_CPP='solaris2'
 454         ;;
 455 sparc*-linux*)
 456         HostPlatform=sparc-unknown-linux
 457         TargetPlatform=sparc-unknown-linux
 458         BuildPlatform=sparc-unknown-linux
 459         HostPlatform_CPP='sparc_unknown_linux'
 460         HostArch_CPP='sparc'
 461         HostVendor_CPP='unknown'
 462         HostOS_CPP='linux'
 463         ;;
 464 sparc-*-openbsd*)
 465         HostPlatform=sparc-unknown-openbsd
 466         TargetPlatform=sparc-unknown-openbsd
 467         BuildPlatform=sparc-unknown-openbsd
 468         HostPlatform_CPP='sparc_unknown_openbsd'
 469         HostArch_CPP='sparc'
 470         HostVendor_CPP='unknown'
 471         HostOS_CPP='openbsd'
 472         ;;
 473 sparc64-*-openbsd*)
 474         HostPlatform=sparc64-unknown-openbsd
 475         TargetPlatform=sparc64-unknown-openbsd
 476         BuildPlatform=sparc64-unknown-openbsd
 477         HostPlatform_CPP='sparc64_unknown_openbsd'
 478         HostArch_CPP='sparc64'
 479         HostVendor_CPP='unknown'
 480         HostOS_CPP='openbsd'
 481         ;;
 482 vax-*-openbsd*)
 483         HostPlatform=vax-unknown-openbsd
 484         TargetPlatform=vax-unknown-openbsd
 485         BuildPlatform=vax-unknown-openbsd
 486         HostPlatform_CPP='vax_unknown_openbsd'
 487         HostArch_CPP='vax'
 488         HostVendor_CPP='unknown'
 489         HostOS_CPP='openbsd'
 490         ;;
 491 *)
 492         echo "Unrecognised platform: $HostPlatform"
 493         exit 1
 494         ;;
 495 esac
 496 echo "Canonicalised to: $HostPlatform"
 497 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 498 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 499
 500 BuildPlatform_CPP=$HostPlatform_CPP
 501 TargetPlatform_CPP=$HostPlatform_CPP
 502 BuildArch_CPP=$HostArch_CPP
 503 TargetArch_CPP=$HostArch_CPP
 504 BuildOS_CPP=$HostOS_CPP
 505 HostOS_Full=$host_os
 506 TargetOS_CPP=$HostOS_CPP
 507 BuildVendor_CPP=$HostVendor_CPP
 508 TargetVendor_CPP=$HostVendor_CPP
 509
 510 AC_SUBST(BuildPlatform)
 511 AC_SUBST(HostPlatform)
 512 AC_SUBST(TargetPlatform)
 513 AC_SUBST(HostPlatform_CPP)
 514 AC_SUBST(BuildPlatform_CPP)
 515 AC_SUBST(TargetPlatform_CPP)
 516
 517 AC_SUBST(HostArch_CPP)
 518 AC_SUBST(BuildArch_CPP)
 519 AC_SUBST(TargetArch_CPP)
 520
 521 AC_SUBST(HostOS_CPP)
 522 AC_SUBST(HostOS_Full)
 523 AC_SUBST(BuildOS_CPP)
 524 AC_SUBST(TargetOS_CPP)
 525
 526 AC_SUBST(HostVendor_CPP)
 527 AC_SUBST(BuildVendor_CPP)
 528 AC_SUBST(TargetVendor_CPP)
 529
 530 AC_SUBST(exeext)
 531
 532 dnl --------------------------------------------------------------
 533 dnl * Calculate absolute path to build tree
 534 dnl --------------------------------------------------------------
 535
 536 AC_MSG_CHECKING(for path to top of build tree)
 537
 538 hardtop=`pwd`
 539
 540 dnl Remove common automounter nonsense
 541 dnl
 542 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
 543
 544 dnl Find 'hardtop_plat', the native format for 'hardtop'
 545 dnl (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
 546 dnl
 547 dnl Note OSTYPE: On Cygwin we need to use 'cygpath' to convert /cygdrive/c/foo to c:/foo
 548 dnl              but we must not do that if we aren't building using Cygwin (notably msys),
 549 dnl              because cygpath doesn't exist.  It seems that 'bash' sets OSTYPE to 'cygwin'
 550 dnl              or 'msys' respectively, but cygwin's 'sh' does not.  So we hackily assume
 551 dnl              that if the shell hasn't set it to 'msys' then we must be in Cygwin.  Sigh.
 552 dnl
 553 dnl              The Right Thing is probably to test $BuildPlatform instead, but we are sloppy
 554 dnl              about setting that correctly at the moment, so we just work around for now.
 555 dnl
 556 dnl              The quotes round "$(OSTYPE)" are essential, for the Cygwin-sh case where OSTYPE
 557 dnl              is not set.
 558 case $HostPlatform in
 559   i386-unknown-mingw32 | i386-unknown-cygwin32)
 560         if test "${OSTYPE}" != "msys"
 561           then
 562             # convert $hardtop to a path that mingw will understand too
 563             cyghardtop=${hardtop}
 564             hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
 565             hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
 566           else
 567             hardtop_plat=${hardtop}
 568         fi
 569         ;;
 570   *)
 571         hardtop_plat=${hardtop}
 572         ;;
 573 esac
 574 AC_SUBST(hardtop)
 575 AC_SUBST(hardtop_plat)
 576
 577 AC_MSG_RESULT(${hardtop})
 578
 579 # We don't support building in directories with spaces.
 580 case "$hardtop" in
 581   *' '*) AC_MSG_ERROR([
 582    The build system does not support building in a directory containing
 583    space characters.  Suggestion: move the build tree somewhere else.])
 584  ;;
 585 esac
 586
 587 dnl --------------------------------------------------------------
 588 dnl * Project specific configuration options
 589 dnl --------------------------------------------------------------
 590 dnl What follows is a bunch of options that can either be configured
 591 dnl through command line options to the configure script or by
 592 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 593 dnl use either is considered a Feature.
 594
 595 dnl ** What command to use to compile compiler sources ?
 596 dnl --------------------------------------------------------------
 597
 598 AC_ARG_WITH([ghc],
 599 [AC_HELP_STRING([--with-ghc=ARG],
 600   [Use ARG as the path to GHC  [default=autodetect]])],
 601   [WithGhc="$withval"],
 602   [if test "$GHC" = ""; then
 603     AC_PATH_PROG([GHC], [ghc])
 604   fi
 605   WithGhc="$GHC"])
 606 AC_SUBST([WithGhc])
 607
 608 AC_ARG_WITH(hc,
 609 [AC_HELP_STRING([--with-hc=ARG],
 610         [Use ARG as the path to the compiler for compiling ordinary
 611          Haskell code  (default= value of --with-ghc)])],
 612 [WithHc="$withval"],
 613 [WithHc=$WithGhc]
 614 )
 615 AC_SUBST(WithHc)
 616
 617 if test "$WithGhc" != ""; then
 618   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 619   AC_SUBST(GhcVersion)dnl
 620   AC_SUBST(GhcMajVersion)dnl
 621   AC_SUBST(GhcMinVersion)dnl
 622   AC_SUBST(GhcPatchLevel)dnl
 623 fi
 624
 625 AC_PATH_PROGS(NHC,nhc nhc98)
 626 AC_PATH_PROG(HBC,hbc)
 627
 628 dnl ** Which gcc to use?
 629 dnl --------------------------------------------------------------
 630 AC_ARG_WITH(gcc,
 631 [AC_HELP_STRING([--with-gcc=ARG],
 632         [Use ARG as the path to GCC  [default=autodetect]])],
 633 [WhatGccIsCalled="$withval"
 634  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 635     then
 636        if test "${OSTYPE}" != "msys"
 637          then
 638          # Canonicalise to <drive>:/path/to/gcc
 639          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 640        fi
 641  fi;
 642  CC="$withval"
 643  export CC
 644  ],
 645 [WhatGccIsCalled="gcc"]
 646 )
 647 AC_SUBST(WhatGccIsCalled)
 648
 649 dnl ** Booting from .hc files?
 650 dnl --------------------------------------------------------------
 651 AC_ARG_ENABLE(hc-boot,
 652 [AC_HELP_STRING([--enable-hc-boot],
 653 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 654  (This option is mostly of interest to porters.) [default=no]])],
 655 [ if test x"$enableval" = x"yes"; then
 656         BootingFromHc=YES
 657   else
 658         BootingFromHc=NO
 659   fi
 660 ],
 661 [BootingFromHc=NO]
 662 )
 663 AC_SUBST(BootingFromHc)
 664
 665 dnl ** Booting from unregisterised .hc files?
 666 dnl --------------------------------------------------------------
 667 AC_ARG_ENABLE(hc-boot-unregisterised,
 668 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 669 [ With --enable-hc-boot, treat the intermediate .hc files as
 670  unregisterised rather than registerised code.
 671  (This option is mostly of interest to porters.) [default=no]])],
 672 [ if test x"$enableval" = x"yes"; then
 673         BootingFromUnregisterisedHc=YES
 674   else
 675         BootingFromUnregisterisedHc=NO
 676   fi
 677 ],
 678 [BootingFromUnregisterisedHc=NO]
 679 )
 680 AC_SUBST(BootingFromUnregisterisedHc)
 681
 682 if test "$BootingFromHc" = "NO"; then
 683 if test "$BootingFromUnregisterisedHc" = "YES"; then
 684 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 685 fi;
 686 fi;
 687
 688 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 689 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
 690 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 691 fi;
 692
 693 dnl ** --enable-threaded-rts (not used any more)
 694 dnl --------------------------------------------------------------
 695 AC_ARG_ENABLE(threaded-rts,
 696 [AC_HELP_STRING([--enable-threaded-rts],
 697 [DEPRECATED (backwards compatibility only). [default=no]])],
 698 [ if test x"$enableval" = x"yes"; then
 699         ThreadedRts=YES
 700   else
 701         ThreadedRts=NO
 702   fi
 703 ],
 704 [ThreadedRts=NO]
 705 )
 706 AC_SUBST(ThreadedRts)
 707
 708 dnl ** Enable the construction of Win32 DLLs?
 709 dnl --------------------------------------------------------------
 710 dnl
 711 dnl [ The ability to build the RTS and libraries as separate DLLs used
 712 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 713 dnl   and build system would be required to bring it back again.)
 714 dnl   Hence, exposing it as an option is false advertisement, so better
 715 dnl   disable it to avoid confusion (but leave it commented-out rather
 716 dnl   than removed in order to remind ourselves to bring back the
 717 dnl   feature at some stage.) ]
 718 dnl
 719 dnl AC_ARG_ENABLE(win32-dlls,
 720 dnl [  --enable-win32-dlls
 721 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 722 dnl     construction of DLLs containing ghc-compiled code.
 723 dnl ],
 724 dnl [
 725 dnl case $HostOS_CPP in
 726 dnl cygwin32) ;;
 727 dnl mingw32)  ;;
 728 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 729 dnl       exit 1
 730 dnl       ;;
 731 dnl esac
 732 dnl EnableWin32DLLs=YES
 733 dnl ],
 734 dnl [EnableWin32DLLs=NO]
 735 dnl )
 736 dnl AC_SUBST(EnableWin32DLLs)
 737 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 738 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 739 dnl fi
 740
 741 dnl ** Enable the building of the ObjectIO?
 742 dnl --------------------------------------------------------------
 743 AC_ARG_ENABLE(objectio,
 744 [AC_HELP_STRING([--enable-objectio],
 745 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 746 [ if test x"$enableval" = x"yes"; then
 747         GhcLibsWithObjectIO=YES
 748   else
 749         GhcLibsWithObjectIO=NO
 750   fi
 751 ],
 752 [GhcLibsWithObjectIO=NO]
 753 )
 754 AC_SUBST(GhcLibsWithObjectIO)
 755
 756 dnl ** .NET interop support?
 757 dnl --------------------------------------------------------------
 758 AC_ARG_ENABLE(dotnet,
 759 [AC_HELP_STRING([--enable-dotnet],
 760 [Build .NET interop layer. [default=no]])],
 761 [ if test x"$enableval" = x"yes"; then
 762         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 763   else
 764         DotnetSupport=NO
 765   fi],
 766 [DotnetSupport=NO]
 767 )
 768 AC_SUBST(DotnetSupport)
 769
 770 dnl --------------------------------------------------------------
 771 dnl End of configure script option section
 772 dnl --------------------------------------------------------------
 773
 774
 775 dnl --------------------------------------------------------------
 776 dnl * General configuration checks
 777 dnl --------------------------------------------------------------
 778
 779 dnl ** Can the unix package be built?
 780 dnl --------------------------------------------------------------
 781
 782 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 783    GhcLibsWithUnix=NO
 784 else
 785    GhcLibsWithUnix=YES
 786 fi
 787 AC_SUBST([GhcLibsWithUnix])
 788
 789 dnl ** does #! work?
 790 AC_SYS_INTERPRETER()
 791
 792 dnl ** look for `perl', but only in /bin on Windows
 793 case $HostOS_CPP in
 794 cygwin32|mingw32)
 795       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 796       if test -z "$PerlCmd"; then
 797          echo "You must install the version of Perl shipped with GHC"
 798          echo "(or a compatible one) in /bin."
 799          exit 1
 800       fi
 801    ;;
 802 *)
 803    AC_PATH_PROG(PerlCmd,perl)
 804    if test -z "$PerlCmd"; then
 805       echo "You must install perl before you can continue"
 806       echo "Perhaps it is already installed, but not in your PATH?"
 807       exit 1
 808    else
 809    FPTOOLS_CHECK_PERL_VERSION
 810    fi
 811    ;;
 812 esac
 813
 814 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 815 FPTOOLS_SHEBANG_PERL
 816
 817 dnl ** check for Python
 818 AC_PATH_PROG(PythonCmd,python)
 819
 820 dnl ** look for GCC and find out which version
 821 dnl     Figure out which C compiler to use.  Gcc is preferred.
 822 dnl     If gcc, make sure it's at least 2.1
 823 dnl
 824 FP_HAVE_GCC
 825 FP_MINGW_GCC
 826
 827 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 828 AC_PROG_CPP
 829
 830 dnl ** Without optimization some INLINE trickery fails for GHCi
 831 SRC_CC_OPTS="-O"
 832
 833 dnl ** Try to add -mno-cygwin to the C compiler options
 834 FP_CHECK_FLAG([-mno-cygwin], [
 835 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 836 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 837 AC_SUBST(SRC_CC_OPTS)
 838
 839 dnl ** figure out how to do context diffs
 840 FP_PROG_CONTEXT_DIFF
 841
 842 dnl ** Find find command (for Win32's benefit)
 843 FP_PROG_FIND
 844
 845 dnl ** Find sort command (for the benefit of Win32 environs)
 846 FP_PROG_SORT
 847
 848 dnl ** figure out how to do a BSD-ish install
 849 AC_PROG_INSTALL
 850
 851 dnl If you can run configure, you certainly have /bin/sh
 852 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 853
 854 dnl ** how to invoke `ar' and `ranlib'
 855 FP_PROG_AR_NEEDS_RANLIB
 856 FP_PROG_AR_SUPPORTS_INPUT
 857
 858 dnl ** Check to see whether ln -s works
 859 AC_PROG_LN_S
 860
 861
 862 dnl ** Find the path to sed
 863 AC_PATH_PROG(SedCmd,sed)
 864
 865
 866 dnl ** check for time command
 867 AC_PATH_PROG(TimeCmd,time)
 868
 869 dnl ** check for tar
 870 dnl   if GNU tar is named gtar, look for it first.
 871 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 872
 873 dnl ** check for DocBook toolchain
 874 FP_CHECK_DOCBOOK_DTD
 875 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl /usr/local/share/xsl/docbook /sw/share/xml/xsl/docbook-xsl])
 876 FP_PROG_FO_PROCESSOR
 877
 878 dnl ** check for ghc-pkg command
 879 FP_PROG_GHC_PKG
 880
 881 AC_ARG_WITH(greencard,
 882 [AC_HELP_STRING([--with-greencard=ARG],
 883         [Use ARG as the path to greencard  [default=autodetct]])],
 884 [
 885 GreenCardCmd=$withval;
 886 FPTOOLS_GREENCARD(3.00)
 887 ]
 888 )
 889
 890 AC_ARG_ENABLE(src-tree-happy,
 891 [AC_HELP_STRING([--enable-src-tree-happy],
 892         [Build and use source tree (fptools/happy) version of Happy.
 893          [default=autodetect]])],
 894 [ if test x"$enableval" = x"yes"; then
 895         UseSrcTreeHappy=YES
 896   else
 897         UseSrcTreeHappy=NO
 898   fi
 899 ],
 900 [UseSrcTreeHappy=NO]
 901 )
 902 dnl ** check for installed happy binary + version
 903 dnl    (don't do it if we're booting from .hc files though.)
 904 if test "$BootingFromHc" = "NO"; then
 905 FPTOOLS_HAPPY
 906 fi;
 907
 908 AC_ARG_ENABLE(src-tree-haddock,
 909 [AC_HELP_STRING([--enable-src-tree-haddock],
 910         [Build and use source tree (fptools/haddock) version of Haddock.
 911          [default=autodetect]])],
 912 [ if test x"$enableval" = x"yes"; then
 913         UseSrcTreeHaddock=YES
 914   else
 915         UseSrcTreeHaddock=NO
 916   fi
 917 ],
 918 [UseSrcTreeHaddock=NO]
 919 )
 920 dnl ** check for installed haddock
 921 FPTOOLS_HADDOCK
 922
 923 AC_ARG_ENABLE(src-tree-alex,
 924 [AC_HELP_STRING([--enable-src-tree-alex],
 925         [Build and use source tree (fptools/alex) version of Alex.
 926          [default=autodetect]])],
 927 [ if test x"$enableval" = x"yes"; then
 928         UseSrcTreeAlex=YES
 929   else
 930         UseSrcTreeAlex=NO
 931   fi
 932 ],
 933 [UseSrcTreeAlex=NO]
 934 )
 935 dnl ** check for installed alex binary + version
 936 dnl    (don't do it if we're booting from .hc files though.)
 937 if test "$BootingFromHc" = "NO"; then
 938 FPTOOLS_ALEX
 939 fi;
 940
 941 dnl --------------------------------------------------
 942 dnl ### program checking section ends here ###
 943 dnl --------------------------------------------------
 944
 945 dnl --------------------------------------------------
 946 dnl * Platform header file and syscall feature tests
 947 dnl ### checking the state of the local header files and syscalls ###
 948
 949 dnl ** check for full ANSI header (.h) files
 950 AC_HEADER_STDC
 951
 952 dnl ** Enable large file support.  NB. do this before testing the type of
 953 dnl    off_t, because it will affect the result of that test.
 954 AC_SYS_LARGEFILE
 955
 956 dnl ** check for specific header (.h) files that we are interested in
 957 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])
 958
 959 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 960 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 961
 962 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 963   GhcLibsWithReadline=YES
 964   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 965 else
 966   GhcLibsWithReadline=NO
 967   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 968 fi
 969 AC_SUBST(GhcLibsWithReadline)
 970
 971 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 972 AC_HEADER_TIME
 973
 974 dnl ** how do we get a timezone name, and UTC offset ?
 975 AC_STRUCT_TIMEZONE
 976
 977 dnl ** do we have altzone?
 978 FP_DECL_ALTZONE
 979
 980 dnl ** do we have long longs?
 981 AC_CHECK_TYPES([long long])
 982
 983 dnl ** what are the sizes of various types
 984 AC_CHECK_SIZEOF(char,               1)
 985 AC_CHECK_SIZEOF(double,             8)
 986 AC_CHECK_SIZEOF(float,              4)
 987 AC_CHECK_SIZEOF(int,                4)
 988 AC_CHECK_SIZEOF(long,               4)
 989 if test "$ac_cv_type_long_long" = yes; then
 990 AC_CHECK_SIZEOF(long long,          8)
 991 fi
 992 AC_CHECK_SIZEOF(short,              2)
 993 AC_CHECK_SIZEOF(unsigned char,      1)
 994 AC_CHECK_SIZEOF(unsigned int,       4)
 995 AC_CHECK_SIZEOF(unsigned long,      4)
 996 if test "$ac_cv_type_long_long" = yes; then
 997 AC_CHECK_SIZEOF(unsigned long long, 8)
 998 fi
 999 AC_CHECK_SIZEOF(unsigned short,     2)
1000 AC_CHECK_SIZEOF(void *,             4)
1001
1002 dnl ** what are alignment constraints on various types
1003 FP_CHECK_ALIGNMENT(char)
1004 FP_CHECK_ALIGNMENT(double)
1005 FP_CHECK_ALIGNMENT(float)
1006 FP_CHECK_ALIGNMENT(int)
1007 FP_CHECK_ALIGNMENT(long)
1008 if test "$ac_cv_type_long_long" = yes; then
1009 FP_CHECK_ALIGNMENT(long long)
1010 fi
1011 FP_CHECK_ALIGNMENT(short)
1012 FP_CHECK_ALIGNMENT(unsigned char)
1013 FP_CHECK_ALIGNMENT(unsigned int)
1014 FP_CHECK_ALIGNMENT(unsigned long)
1015 if test "$ac_cv_type_long_long" = yes; then
1016 FP_CHECK_ALIGNMENT(unsigned long long)
1017 fi
1018 FP_CHECK_ALIGNMENT(unsigned short)
1019 FP_CHECK_ALIGNMENT(void *)
1020
1021 FP_CHECK_FUNC([WinExec],
1022   [@%:@include <windows.h>], [WinExec("",0)])
1023
1024 FP_CHECK_FUNC([GetModuleFileName],
1025   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1026
1027 dnl ** check return type of signal handlers
1028 dnl Foo: assumes we can use prototypes.
1029 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1030 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1031 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1032 dnl #include <signal.h>
1033 dnl #ifdef signal
1034 dnl #undef signal
1035 dnl #endif
1036 dnl void (*signal (int, void (*)(int)))(int);
1037 dnl ]],
1038 dnl [[int i;]])],
1039 dnl [ac_cv_type_signal_handler=void_int],
1040 dnl [ac_cv_type_signal_handler=int_void])])
1041 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1042 dnl AC_DEFINE(VOID_INT_SIGNALS)
1043 dnl fi
1044
1045 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1046 AC_TYPE_SIGNAL
1047 if test "$ac_cv_type_signal" = void; then
1048   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).])
1049 fi
1050
1051 dnl ** check for more functions
1052 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1053 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times])
1054 dnl ** For ghc/rts/gmp:
1055 AC_CHECK_FUNCS([getpagesize])
1056
1057 dnl ** check whether this machine has gmp3 installed
1058 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1059   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1060     HaveLibGmp=NO; LibGmp=not-installed))
1061 AC_SUBST(HaveLibGmp)
1062 AC_SUBST(LibGmp)
1063
1064 dnl ** (Mac OS X only: check for GMP.framework)
1065 HaveFrameworkGMP=NO
1066 if test $HostPlatform = "powerpc-apple-darwin"; then
1067  AC_MSG_CHECKING([for GMP.framework])
1068  save_libs="$LIBS"
1069  LIBS="-framework GMP"
1070  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkGMP=YES,)
1071  if test $HaveFrameworkGMP = YES; then
1072   AC_DEFINE([HAVE_FRAMEWORK_GMP], [1], [Define to 1 if GMP.framework is installed (Mac OS X only).])
1073  fi;
1074  LIBS="$save_libs"
1075  AC_MSG_RESULT([$HaveFrameworkGMP])
1076 fi;
1077 AC_SUBST(HaveFrameworkGMP)
1078
1079 dnl ** check for mingwex library
1080 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1081 AC_SUBST(HaveLibMingwEx)
1082
1083 if test $HaveLibMingwEx = YES ; then
1084   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1085 fi
1086
1087 if test "$HaveLibGmp" = "NO"; then
1088 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1089 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1090 fi;
1091 fi;
1092
1093 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1094 dnl    the order of these tests matters: bfd needs liberty
1095 AC_CHECK_LIB(iberty, xmalloc)
1096 AC_CHECK_LIB(bfd,    bfd_init)
1097
1098 dnl ** check for readline, for Hugs and hslibs' Readline
1099 dnl ncurses supersedes termcap and curses, but for compatibility,
1100 dnl we have to check for all...
1101 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1102   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1103     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1104       HaveLibTermcap=NO; LibTermcap=not-installed)))
1105
1106 if test $HaveLibTermcap = YES ; then
1107   LIBS="-l$LibTermcap $LIBS"
1108   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1109 fi
1110
1111 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1112   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1113   LibsReadline="readline $LibTermcap"
1114 else
1115   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1116   LibsReadline=
1117 fi
1118 AC_SUBST(LibsReadline)
1119
1120 if test "$HaveLibReadline"; then
1121   AC_CHECK_LIB(readline, rl_erase_empty_line,
1122     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1123     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1124   AC_CHECK_LIB(readline, rl_free_undo_list,
1125     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1126     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1127 else
1128   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1129   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1130 fi
1131
1132 dnl ** check for math library
1133 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
1134 if test x"$fp_libm_not_needed" = xdunno; then
1135    AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
1136 fi
1137 AC_SUBST([LIBM])
1138
1139 dnl ################################################################
1140 dnl Check for libraries
1141 dnl ################################################################
1142
1143 dnl ** check for libdl & RTLD_NEXT
1144
1145 AC_CHECK_LIB(dl, dlopen,
1146     [HaveLibDL=YES
1147      AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1148      LIBS="$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], [1], [Define to 1 if RTLD_LOCAL is available.])
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], [1], [Define to 1 if RTLD_GLOBAL is available.])
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], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h])
1217   HaveRtldNow=YES
1218 ], [
1219   AC_MSG_RESULT(no)
1220   HaveRtldNow=NO
1221   ])
1222 AC_SUBST(HaveRtldNow)
1223
1224 dnl --------------------------------------------------
1225 dnl * Miscellaneous feature tests
1226 dnl --------------------------------------------------
1227
1228 dnl ** can we get alloca?
1229 AC_FUNC_ALLOCA
1230
1231 dnl ** Working vfork?
1232 AC_FUNC_FORK
1233
1234 dnl ** determine whether or not const works
1235 AC_C_CONST
1236
1237 dnl ** are we big endian?
1238 AC_C_BIGENDIAN
1239
1240 dnl ** check for leading underscores in symbol names
1241 FP_LEADING_UNDERSCORE
1242
1243 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
1244 FP_PROG_LD_X
1245 FP_PROG_LD_IS_GNU
1246
1247 dnl ** check for Apple-style dead-stripping support
1248 dnl    (.subsections-via-symbols assembler directive)
1249
1250
1251 AC_MSG_CHECKING(for .subsections_via_symbols)
1252 AC_TRY_COMPILE(,[__asm__ (".subsections_via_symbols");],
1253     [
1254         AC_MSG_RESULT(yes)
1255         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
1256             [Define to 1 if Apple-style dead-stripping is supported.])
1257     ],
1258     [
1259         AC_MSG_RESULT(no)
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