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, 1994-1998
   7 #
   8 # Configure script template for the Glasgow functional programming tools
   9 #
  10 # Process with 'autoconf' 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 # First off, a distrib sanity check..
  17 AC_INIT(mk/config.mk.in)
  18
  19 dnl * We require autoconf version 2.52
  20 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
  21 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
  22 AC_PREREQ(2.52)
  23
  24 dnl * Declare subdirectories that have a private configure script
  25 dnl
  26 dnl After the toplevel configuration is complete, the script will recurse into
  27 dnl these subdirectories if they exist. The use of a cache file makes repeated
  28 dnl checks cheap.
  29 AC_CONFIG_SUBDIRS([ghc libraries])
  30
  31 # -------------------------------------------------------------------------
  32 # Prepare to generate the following header files
  33 #
  34 #
  35 AC_CONFIG_HEADER(mk/config.h)
  36
  37 # No, semi-sadly, we don't do `--srcdir'...
  38 if test x"$srcdir" != 'x.' ; then
  39     echo "This configuration does not support the \`--srcdir' option.."
  40     exit 1
  41 fi
  42
  43 dnl--------------------------------------------------------------------
  44 dnl * Choose host(/target/build) platform
  45 dnl--------------------------------------------------------------------
  46
  47 dnl Guess host/target/build platform(s) if necessary.
  48 AC_CANONICAL_SYSTEM
  49
  50 # "$host" defaults to "$target"
  51 if test "x$host" = xNONE ; then
  52     host=$target
  53 fi
  54
  55 dnl ** canonicalize platform names
  56 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  57 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  58 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  59
  60 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  61     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  62     exit 1
  63 fi
  64
  65 exeext=''
  66 #
  67 # The following will be more difficult when we *are* cross-compiling.
  68 # Suitable names to slam in *_CPP are in platform.h.in.
  69 # We also record the architecture, vendor, and operating system (OS)
  70 # separately.
  71 case $HostPlatform in
  72 alpha*-dec-osf[[12]]*)
  73         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  74         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  75         BuildPlatform=alpha-dec-osf1  # hack
  76         HostPlatform_CPP='alpha_dec_osf1'
  77         HostArch_CPP='alpha'
  78         HostVendor_CPP='dec'
  79         HostOS_CPP='osf1'
  80         ;;
  81 alpha*-dec-osf[[345]]*)
  82         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  83         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  84         BuildPlatform=alpha-dec-osf3  # hack
  85         HostPlatform_CPP='alpha_dec_osf3'
  86         HostArch_CPP='alpha'
  87         HostVendor_CPP='dec'
  88         HostOS_CPP='osf3'
  89         ;;
  90 alpha*-unknown-linux*)
  91         HostPlatform=alpha-unknown-linux
  92         TargetPlatform=alpha-unknown-linux
  93         BuildPlatform=alpha-unknown-linux
  94         HostPlatform_CPP='alpha_unknown_linux'
  95         HostArch_CPP='alpha'
  96         HostVendor_CPP='unknown'
  97         HostOS_CPP='linux'
  98         ;;
  99 alpha*-unknown-freebsd*)
 100         HostPlatform=alpha-unknown-freebsd
 101         TargetPlatform=alpha-unknown-freebsd
 102         BuildPlatform=alpha-unknown-freebsd
 103         HostPlatform_CPP='alpha_unknown_freebsd'
 104         HostArch_CPP='alpha'
 105         HostVendor_CPP='unknown'
 106         HostOS_CPP='freebsd'
 107         ;;
 108 alpha*-unknown-openbsd*)
 109         HostPlatform=alpha-unknown-openbsd
 110         TargetPlatform=alpha-unknown-openbsd
 111         BuildPlatform=alpha-unknown-openbsd
 112         HostPlatform_CPP='alpha_unknown_openbsd'
 113         HostArch_CPP='alpha'
 114         HostVendor_CPP='unknown'
 115         HostOS_CPP='openbsd'
 116         ;;
 117 amd64-*-openbsd*|x86_64-*-openbsd*)
 118         HostPlatform=x86_64-unknown-openbsd
 119         TargetPlatform=x86_64-unknown-openbsd
 120         BuildPlatform=x86_64-unknown-openbsd
 121         HostPlatform_CPP='x86_64_unknown_openbsd'
 122         HostArch_CPP='x86_64'
 123         HostVendor_CPP='unknown'
 124         HostOS_CPP='openbsd'
 125         ;;
 126 arm*-linux*)
 127         HostPlatform=arm-unknown-linux # hack again
 128         TargetPlatform=arm-unknown-linux
 129         BuildPlatform=arm-unknown-linux
 130         HostPlatform_CPP='arm_unknown_linux'
 131         HostArch_CPP='arm'
 132         HostVendor_CPP='unknown'
 133         HostOS_CPP='linux'
 134         ;;
 135 arm*-openbsd*)
 136         HostPlatform=arm-unknown-openbsd
 137         TargetPlatform=arm-unknown-openbsd
 138         BuildPlatform=arm-unknown-openbsd
 139         HostPlatform_CPP='arm_unknown_openbsd'
 140         HostArch_CPP='arm'
 141         HostVendor_CPP='unknown'
 142         HostOS_CPP='openbsd'
 143         ;;
 144 hppa*-*-linux*)
 145         HostPlatform=hppa-unknown-linux # hack again
 146         TargetPlatform=hppa-unknown-linux
 147         BuildPlatform=hppa-unknown-linux
 148         HostPlatform_CPP='hppa_unknown_linux'
 149         HostArch_CPP='hppa'
 150         HostVendor_CPP='unknown'
 151         HostOS_CPP='linux'
 152         ;;
 153 hppa*-*-openbsd*)
 154         HostPlatform=hppa-unknown-openbsd # hack again
 155         TargetPlatform=hppa-unknown-openbsd
 156         BuildPlatform=hppa-unknown-openbsd
 157         HostPlatform_CPP='hppa_unknown_openbsd'
 158         HostArch_CPP='hppa'
 159         HostVendor_CPP='unknown'
 160         HostOS_CPP='openbsd'
 161         ;;
 162 hppa1.1-hp-hpux*)
 163         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 164         TargetPlatform=hppa1.1-hp-hpux
 165         BuildPlatform=hppa1.1-hp-hpux
 166         HostPlatform_CPP='hppa1_1_hp_hpux'
 167         HostArch_CPP='hppa1_1'
 168         HostVendor_CPP='hp'
 169         HostOS_CPP='hpux'
 170         ;;
 171 i[[3456]]86-*-linuxaout*)
 172         HostPlatform=i386-unknown-linuxaout   # hack again
 173         TargetPlatform=i386-unknown-linuxaout
 174         BuildPlatform=i386-unknown-linuxaout
 175         HostPlatform_CPP='i386_unknown_linuxaout'
 176         HostArch_CPP='i386'
 177         HostVendor_CPP='unknown'
 178         HostOS_CPP='linuxaout'
 179         ;;
 180 i[[3456]]86-*-linux*)
 181         HostPlatform=i386-unknown-linux # hack again
 182         TargetPlatform=i386-unknown-linux
 183         BuildPlatform=i386-unknown-linux
 184         HostPlatform_CPP='i386_unknown_linux'
 185         HostArch_CPP='i386'
 186         HostVendor_CPP='unknown'
 187         HostOS_CPP='linux'
 188         ;;
 189 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 190         HostPlatform=i386-unknown-freebsd # hack again
 191         TargetPlatform=i386-unknown-freebsd
 192         BuildPlatform=i386-unknown-freebsd
 193         HostPlatform_CPP='i386_unknown_freebsd'
 194         HostArch_CPP='i386'
 195         HostVendor_CPP='unknown'
 196         HostOS_CPP='freebsd'
 197         ;;
 198 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 199         HostPlatform=i386-unknown-freebsd2 # hack again
 200         TargetPlatform=i386-unknown-freebsd2
 201         BuildPlatform=i386-unknown-freebsd2
 202         HostPlatform_CPP='i386_unknown_freebsd2'
 203         HostArch_CPP='i386'
 204         HostVendor_CPP='unknown'
 205         HostOS_CPP='freebsd2'
 206         ;;
 207 i[[3456]]86-*-netbsd*)
 208         HostPlatform=i386-unknown-netbsd # hack again
 209         TargetPlatform=i386-unknown-netbsd
 210         BuildPlatform=i386-unknown-netbsd
 211         HostPlatform_CPP='i386_unknown_netbsd'
 212         HostArch_CPP='i386'
 213         HostVendor_CPP='unknown'
 214         HostOS_CPP='netbsd'
 215         ;;
 216 i[[3456]]86-*-openbsd*)
 217         HostPlatform=i386-unknown-openbsd # hack again
 218         TargetPlatform=i386-unknown-openbsd
 219         BuildPlatform=i386-unknown-openbsd
 220         HostPlatform_CPP='i386_unknown_openbsd'
 221         HostArch_CPP='i386'
 222         HostVendor_CPP='unknown'
 223         HostOS_CPP='openbsd'
 224         ;;
 225 i[[3456]]86-*-solaris2*)
 226         HostPlatform=i386-unknown-solaris2 # hack again
 227         TargetPlatform=i386-unknown-solaris2
 228         BuildPlatform=i386-unknown-solaris2
 229         HostPlatform_CPP='i386_unknown_solaris2'
 230         HostArch_CPP='i386'
 231         HostVendor_CPP='unknown'
 232         HostOS_CPP='solaris2'
 233         ;;
 234 i[[3456]]86-*-cygwin*)
 235         HostPlatform=i386-unknown-cygwin32 # hack again
 236         TargetPlatform=i386-unknown-cygwin32
 237         BuildPlatform=i386-unknown-cygwin32
 238         HostPlatform_CPP='i386_unknown_cygwin32'
 239         HostArch_CPP='i386'
 240         HostVendor_CPP='unknown'
 241         HostOS_CPP='cygwin32'
 242         exeext='.exe'
 243         ;;
 244 i[[3456]]86-*-mingw32*)
 245         HostPlatform=i386-unknown-mingw32 # hack again
 246         TargetPlatform=i386-unknown-mingw32
 247         BuildPlatform=i386-unknown-mingw32
 248         HostPlatform_CPP='i386_unknown_mingw32'
 249         HostArch_CPP='i386'
 250         HostVendor_CPP='unknown'
 251         HostOS_CPP='mingw32'
 252         exeext='.exe'
 253         ;;
 254 ia64-*-linux*)
 255         HostPlatform=ia64-unknown-linux # hack again
 256         TargetPlatform=ia64-unknown-linux
 257         BuildPlatform=ia64-unknown-linux
 258         HostPlatform_CPP='ia64_unknown_linux'
 259         HostArch_CPP='ia64'
 260         HostVendor_CPP='unknown'
 261         HostOS_CPP='linux'
 262         ;;
 263 x86_64-*-linux*)
 264         HostPlatform=x86_64-unknown-linux
 265         TargetPlatform=x86_64-unknown-linux
 266         BuildPlatform=x86_64-unknown-linux
 267         HostPlatform_CPP='x86_64_unknown_linux'
 268         HostArch_CPP='x86_64'
 269         HostVendor_CPP='unknown'
 270         HostOS_CPP='linux'
 271         ;;
 272 m68k-*-linux*)
 273         HostPlatform=m68k-unknown-linux # hack again
 274         TargetPlatform=m68k-unknown-linux
 275         BuildPlatform=m68k-unknown-linux
 276         HostPlatform_CPP='m68k_unknown_linux'
 277         HostArch_CPP='m68k'
 278         HostVendor_CPP='unknown'
 279         HostOS_CPP='linux'
 280         ;;
 281 m68k-next-nextstep2)
 282         HostPlatform_CPP='m68k_next_nextstep2'
 283         HostArch_CPP='m68k'
 284         HostVendor_CPP='next'
 285         HostOS_CPP='nextstep2'
 286         ;;
 287 m68k-next-nextstep3)
 288         HostPlatform_CPP='m68k_next_nextstep3'
 289         HostArch_CPP='m68k'
 290         HostVendor_CPP='next'
 291         HostOS_CPP='nextstep3'
 292         ;;
 293 i[[3456]]86-next-nextstep3)
 294         HostPlatform=i386-next-nextstep3 # hack again
 295         TargetPlatform=i386-next-nextstep3
 296         BuildPlatform=i386-next-nextstep3
 297         HostPlatform_CPP='i386_next_nextstep3'
 298         HostArch_CPP='i386'
 299         HostVendor_CPP='next'
 300         HostOS_CPP='nextstep3'
 301         ;;
 302 m68k-*-openbsd*)
 303         HostPlatform=m68k-unknown-openbsd
 304         TargetPlatform=m68k-unknown-openbsd
 305         BuildPlatform=m68k-unknown-openbsd
 306         HostPlatform_CPP='m68k_unknown_openbsd'
 307         HostArch_CPP='m68k'
 308         HostVendor_CPP='unknown'
 309         HostOS_CPP='openbsd'
 310         ;;
 311 m68k-*-netbsd*)
 312         HostPlatform=m68k-unknown-netbsd
 313         TargetPlatform=m68k-unknown-netbsd
 314         BuildPlatform=m68k-unknown-netbsd
 315         HostPlatform_CPP='m68k_unknown_netbsd'
 316         HostArch_CPP='m68k'
 317         HostVendor_CPP='unknown'
 318         HostOS_CPP='netbsd'
 319         ;;
 320 m68k-sun-sunos4*)
 321         HostPlatform=m68k-sun-sunos4
 322         TargetPlatform=m68k-sun-sunos4 #hack
 323         BuildPlatform=m68k-sun-sunos4 #hack
 324         HostPlatform_CPP='m68k_sun_sunos4'
 325         HostArch_CPP='m68k'
 326         HostVendor_CPP='sun'
 327         HostOS_CPP='sunos4'
 328         ;;
 329 m88k-*-openbsd*)
 330         HostPlatform=m88k-unknown-openbsd
 331         TargetPlatform=m88k-unknown-openbsd
 332         BuildPlatform=m88k-unknown-openbsd
 333         HostPlatform_CPP='m88k_unknown_openbsd'
 334         HostArch_CPP='m88k'
 335         HostVendor_CPP='unknown'
 336         HostOS_CPP='openbsd'
 337         ;;
 338 mips-*-linux*)
 339         HostPlatform=mips-unknown-linux # hack again
 340         TargetPlatform=mips-unknown-linux
 341         BuildPlatform=mips-unknown-linux
 342         HostPlatform_CPP='mips_unknown_linux'
 343         HostArch_CPP='mips'
 344         HostVendor_CPP='unknown'
 345         HostOS_CPP='linux'
 346         ;;
 347 mips-dec-ultrix*)
 348         HostPlatform_CPP='mips_dec_ultrix'
 349         HostArch_CPP='mipsel'   # NB a little different
 350         HostVendor_CPP='dec'
 351         HostOS_CPP='ultrix'
 352         ;;
 353 mips-sgi-irix*)
 354         HostPlatform=mips-sgi-irix
 355         TargetPlatform=mips-sgi-irix #hack
 356         BuildPlatform=mips-sgi-irix #hack
 357         HostPlatform_CPP='mips_sgi_irix'
 358         HostArch_CPP='mipseb'   # NB a little different
 359         HostVendor_CPP='sgi'
 360         HostOS_CPP='irix'
 361         ;;
 362 rs6000-ibm-aix*)
 363         HostPlatform=rs6000-ibm-aix
 364         TargetPlatform=rs6000-ibm-aix #hack
 365         BuildPlatform=rs6000-ibm-aix #hack
 366         HostPlatform_CPP='rs6000_ibm_aix'
 367         HostArch_CPP='rs6000'
 368         HostVendor_CPP='ibm'
 369         HostOS_CPP='aix'
 370         ;;
 371 powerpc-ibm-aix*)
 372         HostPlatform=powerpc-ibm-aix
 373         TargetPlatform=powerpc-ibm-aix #hack
 374         BuildPlatform=powerpc-ibm-aix #hack
 375         HostPlatform_CPP='powerpc_ibm_aix'
 376         HostArch_CPP='powerpc'
 377         HostVendor_CPP='ibm'
 378         HostOS_CPP='aix'
 379         ;;
 380 powerpc-apple-darwin*)
 381         HostPlatform=powerpc-apple-darwin
 382         TargetPlatform=powerpc-apple-darwin #hack
 383         BuildPlatform=powerpc-apple-darwin #hack
 384         HostPlatform_CPP='powerpc_apple_darwin'
 385         HostArch_CPP='powerpc'
 386         HostVendor_CPP='apple'
 387         HostOS_CPP='darwin'
 388         ;;
 389 powerpc-unknown-linux*)
 390         HostPlatform=powerpc-unknown-linux
 391         TargetPlatform=powerpc-unknown-linux
 392         BuildPlatform=powerpc-unknown-linux
 393         HostPlatform_CPP='powerpc_unknown_linux'
 394         HostArch_CPP='powerpc'
 395         HostVendor_CPP='unknown'
 396         HostOS_CPP='linux'
 397         ;;
 398 powerpc-unknown-openbsd*)
 399         HostPlatform=powerpc-unknown-openbsd
 400         TargetPlatform=powerpc-unknown-openbsd
 401         BuildPlatform=powerpc-unknown-openbsd
 402         HostPlatform_CPP='powerpc_unknown_openbsd'
 403         HostArch_CPP='powerpc'
 404         HostVendor_CPP='unknown'
 405         HostOS_CPP='openbsd'
 406         ;;
 407 s390-ibm-linux*)
 408        HostPlatform=s390-ibm-linux
 409        TargetPlatform=s390-ibm-linux #hack
 410        BuildPlatform=s390-ibm-linux #hack
 411         HostPlatform_CPP='s390_ibm_linux'
 412         HostArch_CPP='s390'
 413         HostVendor_CPP='ibm'
 414         HostOS_CPP='linux'
 415         ;;
 416 sparc-sun-sunos4*)
 417         HostPlatform=sparc-sun-sunos4
 418         TargetPlatform=sparc-sun-sunos4 #hack
 419         BuildPlatform=sparc-sun-sunos4 #hack
 420         HostPlatform_CPP='sparc_sun_sunos4'
 421         HostArch_CPP='sparc'
 422         HostVendor_CPP='sun'
 423         HostOS_CPP='sunos4'
 424         ;;
 425 sparc-sun-solaris2*)
 426         HostPlatform=sparc-sun-solaris2
 427         TargetPlatform=sparc-sun-solaris2 #hack
 428         BuildPlatform=sparc-sun-solaris2 #hack
 429         HostPlatform_CPP='sparc_sun_solaris2'
 430         HostArch_CPP='sparc'
 431         HostVendor_CPP='sun'
 432         HostOS_CPP='solaris2'
 433         ;;
 434 sparc*-linux*)
 435         HostPlatform=sparc-unknown-linux
 436         TargetPlatform=sparc-unknown-linux
 437         BuildPlatform=sparc-unknown-linux
 438         HostPlatform_CPP='sparc_unknown_linux'
 439         HostArch_CPP='sparc'
 440         HostVendor_CPP='unknown'
 441         HostOS_CPP='linux'
 442         ;;
 443 sparc-*-openbsd*)
 444         HostPlatform=sparc-unknown-openbsd
 445         TargetPlatform=sparc-unknown-openbsd
 446         BuildPlatform=sparc-unknown-openbsd
 447         HostPlatform_CPP='sparc_unknown_openbsd'
 448         HostArch_CPP='sparc'
 449         HostVendor_CPP='unknown'
 450         HostOS_CPP='openbsd'
 451         ;;
 452 sparc64-*-openbsd*)
 453         HostPlatform=sparc64-unknown-openbsd
 454         TargetPlatform=sparc64-unknown-openbsd
 455         BuildPlatform=sparc64-unknown-openbsd
 456         HostPlatform_CPP='sparc64_unknown_openbsd'
 457         HostArch_CPP='sparc64'
 458         HostVendor_CPP='unknown'
 459         HostOS_CPP='openbsd'
 460         ;;
 461 vax-*-openbsd*)
 462         HostPlatform=vax-unknown-openbsd
 463         TargetPlatform=vax-unknown-openbsd
 464         BuildPlatform=vax-unknown-openbsd
 465         HostPlatform_CPP='vax_unknown_openbsd'
 466         HostArch_CPP='vax'
 467         HostVendor_CPP='unknown'
 468         HostOS_CPP='openbsd'
 469         ;;
 470 *)
 471         echo "Unrecognised platform: $HostPlatform"
 472         exit 1
 473         ;;
 474 esac
 475 echo "Canonicalised to: $HostPlatform"
 476 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 477 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 478
 479 BuildPlatform_CPP=$HostPlatform_CPP
 480 TargetPlatform_CPP=$HostPlatform_CPP
 481 BuildArch_CPP=$HostArch_CPP
 482 TargetArch_CPP=$HostArch_CPP
 483 BuildOS_CPP=$HostOS_CPP
 484 HostOS_Full=$host_os
 485 TargetOS_CPP=$HostOS_CPP
 486 BuildVendor_CPP=$HostVendor_CPP
 487 TargetVendor_CPP=$HostVendor_CPP
 488
 489 AC_SUBST(BuildPlatform)
 490 AC_SUBST(HostPlatform)
 491 AC_SUBST(TargetPlatform)
 492 AC_SUBST(HostPlatform_CPP)
 493 AC_SUBST(BuildPlatform_CPP)
 494 AC_SUBST(TargetPlatform_CPP)
 495
 496 AC_SUBST(HostArch_CPP)
 497 AC_SUBST(BuildArch_CPP)
 498 AC_SUBST(TargetArch_CPP)
 499
 500 AC_SUBST(HostOS_CPP)
 501 AC_SUBST(HostOS_Full)
 502 AC_SUBST(BuildOS_CPP)
 503 AC_SUBST(TargetOS_CPP)
 504
 505 AC_SUBST(HostVendor_CPP)
 506 AC_SUBST(BuildVendor_CPP)
 507 AC_SUBST(TargetVendor_CPP)
 508
 509 AC_SUBST(exeext)
 510
 511 dnl --------------------------------------------------------------
 512 dnl * Calculate absolute path to build tree
 513 dnl --------------------------------------------------------------
 514
 515 AC_MSG_CHECKING(for path to top of build tree)
 516
 517 hardtop=`pwd`
 518
 519 dnl Remove common automounter nonsense
 520 dnl
 521 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
 522
 523 dnl Find 'hardtop_plat', the native format for 'hardtop'
 524 dnl (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
 525 dnl
 526 dnl Note OSTYPE: On Cygwin we need to use 'cygpath' to convert /cygdrive/c/foo to c:/foo
 527 dnl              but we must not do that if we aren't building using Cygwin (notably msys),
 528 dnl              because cygpath doesn't exist.  It seems that 'bash' sets OSTYPE to 'cygwin'
 529 dnl              or 'msys' respectively, but cygwin's 'sh' does not.  So we hackily assume
 530 dnl              that if the shell hasn't set it to 'msys' then we must be in Cygwin.  Sigh.
 531 dnl
 532 dnl              The Right Thing is probably to test $BuildPlatform instead, but we are sloppy
 533 dnl              about setting that correctly at the moment, so we just work around for now.
 534 dnl
 535 dnl              The quotes round "$(OSTYPE)" are essential, for the Cygwin-sh case where OSTYPE
 536 dnl              is not set.
 537 case $HostPlatform in
 538   i386-unknown-mingw32 | i386-unknown-cygwin32)
 539         if test "${OSTYPE}" != "msys"
 540           then
 541             # convert $hardtop to a path that mingw will understand too
 542             cyghardtop=${hardtop}
 543             hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
 544             hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
 545           else
 546             hardtop_plat=${hardtop}
 547         fi
 548         ;;
 549   *)
 550         hardtop_plat=${hardtop}
 551         ;;
 552 esac
 553 AC_SUBST(hardtop)
 554 AC_SUBST(hardtop_plat)
 555
 556 AC_MSG_RESULT(${hardtop})
 557
 558 dnl --------------------------------------------------------------
 559 dnl * Project specific configuration options
 560 dnl --------------------------------------------------------------
 561 dnl What follows is a bunch of options that can either be configured
 562 dnl through command line options to the configure script or by
 563 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 564 dnl use either is considered a Feature.
 565
 566 dnl ** What command to use to compile compiler sources ?
 567 dnl --------------------------------------------------------------
 568
 569 AC_ARG_WITH(ghc,
 570 [AC_HELP_STRING([--with-ghc=ARG],
 571         [Use ARG as the path to GHC  [default=autodetect]])],
 572 [ WithGhc="$withval" ],
 573 [
 574   if test "$GHC" = ""; then
 575     AC_PATH_PROG(GHC,ghc)
 576   fi
 577   WithGhc=$GHC
 578 ])
 579 AC_SUBST(WithGhc)
 580
 581 AC_ARG_WITH(hc,
 582 [AC_HELP_STRING([--with-hc=ARG],
 583         [Use ARG as the path to the compiler for compiling ordinary
 584          Haskell code  (default= value of --with-ghc)])],
 585 [WithHc="$withval"],
 586 [WithHc=$WithGhc]
 587 )
 588 AC_SUBST(WithHc)
 589
 590 if test "$WithGhc" != ""; then
 591   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 592   AC_SUBST(GhcVersion)dnl
 593   AC_SUBST(GhcMajVersion)dnl
 594   AC_SUBST(GhcMinVersion)dnl
 595   AC_SUBST(GhcPatchLevel)dnl
 596 fi
 597
 598 AC_PATH_PROGS(NHC,nhc nhc98)
 599 AC_PATH_PROG(HBC,hbc)
 600
 601 dnl ** Which gcc to use?
 602 dnl --------------------------------------------------------------
 603 AC_ARG_WITH(gcc,
 604 [AC_HELP_STRING([--with-gcc=ARG],
 605         [Use ARG as the path to GCC  [default=autodetect]])],
 606 [WhatGccIsCalled="$withval"
 607  if test "x$HostPlatform" = "xi386-unknown-mingw32"
 608     then
 609        if test "${OSTYPE}" != "msys"
 610          then
 611          # Canonicalise to <drive>:/path/to/gcc
 612          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
 613        fi
 614  fi;
 615  CC="$withval"],
 616 [WhatGccIsCalled="gcc"]
 617 )
 618 AC_SUBST(WhatGccIsCalled)
 619
 620 dnl ** Booting from .hc files?
 621 dnl --------------------------------------------------------------
 622 AC_ARG_ENABLE(hc-boot,
 623 [AC_HELP_STRING([--enable-hc-boot],
 624 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
 625  (This option is mostly of interest to porters.) [default=no]])],
 626 [ if test x"$enableval" = x"yes"; then
 627         BootingFromHc=YES
 628   else
 629         BootingFromHc=NO
 630   fi
 631 ],
 632 [BootingFromHc=NO]
 633 )
 634 AC_SUBST(BootingFromHc)
 635
 636 dnl ** Booting from unregisterised .hc files?
 637 dnl --------------------------------------------------------------
 638 AC_ARG_ENABLE(hc-boot-unregisterised,
 639 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
 640 [ With --enable-hc-boot, treat the intermediate .hc files as
 641  unregisterised rather than registerised code.
 642  (This option is mostly of interest to porters.) [default=no]])],
 643 [ if test x"$enableval" = x"yes"; then
 644         BootingFromUnregisterisedHc=YES
 645   else
 646         BootingFromUnregisterisedHc=NO
 647   fi
 648 ],
 649 [BootingFromUnregisterisedHc=NO]
 650 )
 651 AC_SUBST(BootingFromUnregisterisedHc)
 652
 653 if test "$BootingFromHc" = "NO"; then
 654 if test "$BootingFromUnregisterisedHc" = "YES"; then
 655 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 656 fi;
 657 fi;
 658
 659 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
 660 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
 661 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
 662 fi;
 663
 664 dnl ** --enable-threaded-rts (not used any more)
 665 dnl --------------------------------------------------------------
 666 AC_ARG_ENABLE(threaded-rts,
 667 [AC_HELP_STRING([--enable-threaded-rts],
 668 [DEPRECATED (backwards compatibility only). [default=no]])],
 669 [ if test x"$enableval" = x"yes"; then
 670         ThreadedRts=YES
 671   else
 672         ThreadedRts=NO
 673   fi
 674 ],
 675 [ThreadedRts=NO]
 676 )
 677 AC_SUBST(ThreadedRts)
 678
 679 dnl ** Enable the construction of Win32 DLLs?
 680 dnl --------------------------------------------------------------
 681 dnl
 682 dnl [ The ability to build the RTS and libraries as separate DLLs used
 683 dnl   to be supported, but isn't currently (updates to the RTS, compiler
 684 dnl   and build system would be required to bring it back again.)
 685 dnl   Hence, exposing it as an option is false advertisement, so better
 686 dnl   disable it to avoid confusion (but leave it commented-out rather
 687 dnl   than removed in order to remind ourselves to bring back the
 688 dnl   feature at some stage.) ]
 689 dnl
 690 dnl AC_ARG_ENABLE(win32-dlls,
 691 dnl [  --enable-win32-dlls
 692 dnl         If on a Win32 platform running mingw32/cygwin, enable the
 693 dnl     construction of DLLs containing ghc-compiled code.
 694 dnl ],
 695 dnl [
 696 dnl case $HostOS_CPP in
 697 dnl cygwin32) ;;
 698 dnl mingw32)  ;;
 699 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
 700 dnl       exit 1
 701 dnl       ;;
 702 dnl esac
 703 dnl EnableWin32DLLs=YES
 704 dnl ],
 705 dnl [EnableWin32DLLs=NO]
 706 dnl )
 707 dnl AC_SUBST(EnableWin32DLLs)
 708 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 709 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 710 dnl fi
 711
 712 dnl ** Enable the building of the ObjectIO?
 713 dnl --------------------------------------------------------------
 714 AC_ARG_ENABLE(objectio,
 715 [AC_HELP_STRING([--enable-objectio],
 716 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
 717 [ if test x"$enableval" = x"yes"; then
 718         GhcLibsWithObjectIO=YES
 719   else
 720         GhcLibsWithObjectIO=NO
 721   fi
 722 ],
 723 [GhcLibsWithObjectIO=NO]
 724 )
 725 AC_SUBST(GhcLibsWithObjectIO)
 726
 727 dnl ** Enable the building of the OpenAL binding?
 728 dnl --------------------------------------------------------------
 729 AC_ARG_ENABLE([openal],
 730   AC_HELP_STRING([--enable-openal],
 731                  [Build OpenAL binding [[default=autodetect]]]),
 732   [ if test x"$enableval" = x"yes"; then
 733         GhcLibsWithOpenAL=YES
 734     else
 735         GhcLibsWithOpenAL=NO
 736     fi
 737   ],
 738   [GhcLibsWithOpenAL=yes])
 739
 740 AC_SUBST([GhcLibsWithOpenAL])
 741
 742 dnl ** .NET interop support?
 743 dnl --------------------------------------------------------------
 744 AC_ARG_ENABLE(dotnet,
 745 [AC_HELP_STRING([--enable-dotnet],
 746 [Build .NET interop layer. [default=no]])],
 747 [ if test x"$enableval" = x"yes"; then
 748         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
 749   else
 750         DotnetSupport=NO
 751   fi],
 752 [DotnetSupport=NO]
 753 )
 754 AC_SUBST(DotnetSupport)
 755
 756 dnl --------------------------------------------------------------
 757 dnl End of configure script option section
 758 dnl --------------------------------------------------------------
 759
 760
 761 dnl --------------------------------------------------------------
 762 dnl * General configuration checks
 763 dnl --------------------------------------------------------------
 764
 765 dnl ** Can the unix package be built?
 766 dnl --------------------------------------------------------------
 767
 768 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
 769    GhcLibsWithUnix=NO
 770 else
 771    GhcLibsWithUnix=YES
 772 fi
 773 AC_SUBST([GhcLibsWithUnix])
 774
 775 dnl ** does #! work?
 776 AC_SYS_INTERPRETER()
 777
 778 dnl ** look for `perl', but only in /bin on Windows
 779 case $HostOS_CPP in
 780 cygwin32|mingw32)
 781       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 782       if test -z "$PerlCmd"; then
 783          echo "You must install the version of Perl shipped with GHC"
 784          echo "(or a compatible one) in /bin."
 785          exit 1
 786       fi
 787    ;;
 788 *)
 789    AC_PATH_PROG(PerlCmd,perl)
 790    if test -z "$PerlCmd"; then
 791       echo "You must install perl before you can continue"
 792       echo "Perhaps it is already installed, but not in your PATH?"
 793       exit 1
 794    else
 795    FPTOOLS_CHECK_PERL_VERSION
 796    fi
 797    ;;
 798 esac
 799
 800 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 801 FPTOOLS_SHEBANG_PERL
 802
 803 dnl ** check for Python
 804 AC_PATH_PROG(PythonCmd,python)
 805
 806 dnl ** look for GCC and find out which version
 807 dnl     Figure out which C compiler to use.  Gcc is preferred.
 808 dnl     If gcc, make sure it's at least 2.1
 809 dnl
 810 AC_PROG_CC
 811 FPTOOLS_HAVE_GCC
 812 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
 813
 814 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 815 AC_PROG_CPP
 816
 817 dnl ** Without optimization some INLINE trickery fails for GHCi
 818 SRC_CC_OPTS="-O"
 819
 820 dnl ** Try to add -mno-cygwin to the C compiler options
 821 FP_CHECK_FLAG([-mno-cygwin], [
 822 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
 823 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
 824 AC_SUBST(SRC_CC_OPTS)
 825
 826 dnl ** figure out how to do context diffs
 827 FP_PROG_CONTEXT_DIFF
 828
 829 dnl ** Find find command (for Win32's benefit)
 830 FP_PROG_FIND
 831
 832 dnl ** figure out how to do a BSD-ish install
 833 AC_PROG_INSTALL
 834
 835 dnl If you can run configure, you certainly have /bin/sh
 836 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
 837
 838 dnl ** how to invoke `ar' and `ranlib'
 839 FP_PROG_AR_NEEDS_RANLIB
 840 FP_PROG_AR_SUPPORTS_INPUT
 841
 842 dnl ** Check to see whether ln -s works
 843 AC_PROG_LN_S
 844
 845
 846 dnl ** Find the path to sed
 847 AC_PATH_PROG(SedCmd,sed)
 848
 849
 850 dnl ** check for time command
 851 AC_PATH_PROG(TimeCmd,time)
 852
 853 dnl ** check for tar
 854 dnl   if GNU tar is named gtar, look for it first.
 855 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 856
 857 dnl ** check for jade/openjade & determine a working catalog
 858 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
 859 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl,
 860                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
 861 if test -z "$Catalog"; then
 862   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
 863 fi
 864 case $Catalog in
 865    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
 866         Catalog=
 867         ;;
 868    glafp*)
 869         case $HostOS_CPP in
 870            mingw32)
 871                   if test "${OSTYPE}" == "msys"
 872                     then
 873                       Catalog=$hardtop/$Catalog
 874                     else
 875                       Catalog=`cygpath -w $hardtop/$Catalog`
 876                   fi
 877               ;;
 878            *) Catalog=$hardtop/$Catalog
 879               ;;
 880         esac
 881    ;;
 882 esac
 883 AC_SUBST(Catalog)
 884
 885
 886 dnl ** check for ghc-pkg command
 887 changequote(, )dnl
 888 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
 889 changequote([, ])dnl
 890 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
 891    GhcPkgCmd=$ghc_pkg_guess
 892    AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
 893 else
 894    AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
 895 fi
 896
 897 AC_ARG_WITH(greencard,
 898 [AC_HELP_STRING([--with-greencard=ARG],
 899         [Use ARG as the path to greencard  [default=autodetct]])],
 900 [
 901 GreenCardCmd=$withval;
 902 FPTOOLS_GREENCARD(3.00)
 903 ]
 904 )
 905
 906 AC_ARG_ENABLE(src-tree-happy,
 907 [AC_HELP_STRING([--enable-src-tree-happy],
 908         [Build and use source tree (fptools/happy) version of Happy.
 909          [default=autodetect]])],
 910 [ if test x"$enableval" = x"yes"; then
 911         UseSrcTreeHappy=YES
 912   else
 913         UseSrcTreeHappy=NO
 914   fi
 915 ],
 916 [UseSrcTreeHappy=NO]
 917 )
 918 dnl ** check for installed happy binary + version
 919 dnl    (don't do it if we're booting from .hc files though.)
 920 if test "$BootingFromHc" = "NO"; then
 921 FPTOOLS_HAPPY
 922 fi;
 923
 924 AC_ARG_ENABLE(src-tree-haddock,
 925 [AC_HELP_STRING([--enable-src-tree-haddock],
 926         [Build and use source tree (fptools/haddock) version of Haddock.
 927          [default=autodetect]])],
 928 [ if test x"$enableval" = x"yes"; then
 929         UseSrcTreeHaddock=YES
 930   else
 931         UseSrcTreeHaddock=NO
 932   fi
 933 ],
 934 [UseSrcTreeHaddock=NO]
 935 )
 936 dnl ** check for installed haddock
 937 FPTOOLS_HADDOCK
 938
 939 AC_ARG_ENABLE(src-tree-alex,
 940 [AC_HELP_STRING([--enable-src-tree-alex],
 941         [Build and use source tree (fptools/alex) version of Alex.
 942          [default=autodetect]])],
 943 [ if test x"$enableval" = x"yes"; then
 944         UseSrcTreeAlex=YES
 945   else
 946         UseSrcTreeAlex=NO
 947   fi
 948 ],
 949 [UseSrcTreeAlex=NO]
 950 )
 951 dnl ** check for installed alex binary + version
 952 dnl    (don't do it if we're booting from .hc files though.)
 953 if test "$BootingFromHc" = "NO"; then
 954 FPTOOLS_ALEX
 955 fi;
 956
 957 dnl --------------------------------------------------
 958 dnl ### program checking section ends here ###
 959 dnl --------------------------------------------------
 960
 961 dnl --------------------------------------------------
 962 dnl * Platform header file and syscall feature tests
 963 dnl ### checking the state of the local header files and syscalls ###
 964
 965 dnl ** check for full ANSI header (.h) files
 966 AC_HEADER_STDC
 967
 968 dnl ** Enable large file support.  NB. do this before testing the type of
 969 dnl    off_t, because it will affect the result of that test.
 970 AC_SYS_LARGEFILE
 971
 972 dnl ** check for specific header (.h) files that we are interested in
 973 AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h locale.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h bfd.h winsock.h pthread.h sys/uio.h)
 974 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
 975
 976 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
 977 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 978
 979 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 980   GhcLibsWithReadline=YES
 981   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
 982 else
 983   GhcLibsWithReadline=NO
 984   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
 985 fi
 986 AC_SUBST(GhcLibsWithReadline)
 987
 988 dnl ** check for DOS include files
 989 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 990
 991 dnl ** check for Windows include files
 992 AC_CHECK_HEADERS(windows.h)
 993
 994 dnl ** check for OpenGL/GLUT include paths and libraries
 995 FP_CHECK_GLUT
 996
 997 if test x"$no_GLU" = xyes; then
 998   GhcLibsWithOpenGL=NO
 999 else
1000   GhcLibsWithOpenGL=YES
1001 fi
1002 AC_SUBST([GhcLibsWithOpenGL])
1003
1004 if test x"$no_GLUT" = xyes; then
1005   GhcLibsWithGLUT=NO
1006 else
1007   GhcLibsWithGLUT=YES
1008 fi
1009 AC_SUBST([GhcLibsWithGLUT])
1010
1011 dnl ** check for OpenGL include files
1012 fp_save_cppflags="$CPPFLAGS"
1013 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
1014 if test x"$use_quartz_opengl" = xyes; then
1015   AC_CHECK_HEADERS([OpenGL/gl.h])
1016 else
1017   AC_CHECK_HEADERS([GL/gl.h])
1018 fi
1019 CPPFLAGS="$fp_save_cppflags"
1020
1021 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
1022 AC_HEADER_TIME
1023
1024 dnl dynamic loading include files
1025 AC_CHECK_HEADERS(dlfcn.h dl.h)
1026
1027 dnl ** check for farcalloc (in bcc)
1028 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
1029
1030 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
1031 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
1032
1033 dnl ** check for POSIX regex
1034 HavePosixRegex=NO
1035 AC_CHECK_HEADERS(regex.h,[AC_CHECK_FUNCS(regcomp, [HavePosixRegex=YES])])
1036 AC_SUBST(HavePosixRegex)
1037
1038 dnl ** how do we get a timezone name, and UTC offset ?
1039 AC_STRUCT_TIMEZONE
1040
1041 dnl ** do we have altzone?
1042 FP_DECL_ALTZONE
1043
1044 dnl ** does struct stat contain st_blksize?
1045 AC_STRUCT_ST_BLKSIZE
1046
1047 dnl ** do we have long longs?
1048 AC_CHECK_TYPES([long long])
1049
1050 dnl ** check what fields struct msghdr contains
1051 AC_CHECK_HEADERS([sys/types.h sys/socket.h sys/uio.h])
1052 AC_CHECK_MEMBERS([struct msghdr.msg_control, struct msghdr.msg_accrights], [], [], [#if HAVE_SYS_TYPES_H
1053 # include <sys/types.h>
1054 #endif
1055 #if HAVE_SYS_SOCKET_H
1056 # include <sys/socket.h>
1057 #endif
1058 #if HAVE_SYS_UIO_H
1059 # include <sys/uio.h>
1060 #endif])
1061
1062 dnl ** what are the sizes of various types
1063 AC_CHECK_SIZEOF(char,               1)
1064 AC_CHECK_SIZEOF(double,             8)
1065 AC_CHECK_SIZEOF(float,              4)
1066 AC_CHECK_SIZEOF(int,                4)
1067 AC_CHECK_SIZEOF(long,               4)
1068 if test "$ac_cv_type_long_long" = yes; then
1069 AC_CHECK_SIZEOF(long long,          8)
1070 fi
1071 AC_CHECK_SIZEOF(short,              2)
1072 AC_CHECK_SIZEOF(unsigned char,      1)
1073 AC_CHECK_SIZEOF(unsigned int,       4)
1074 AC_CHECK_SIZEOF(unsigned long,      4)
1075 if test "$ac_cv_type_long_long" = yes; then
1076 AC_CHECK_SIZEOF(unsigned long long, 8)
1077 fi
1078 AC_CHECK_SIZEOF(unsigned short,     2)
1079 AC_CHECK_SIZEOF(void *,             4)
1080
1081 dnl ** what are alignment constraints on various types
1082 FP_CHECK_ALIGNMENT(char)
1083 FP_CHECK_ALIGNMENT(double)
1084 FP_CHECK_ALIGNMENT(float)
1085 FP_CHECK_ALIGNMENT(int)
1086 FP_CHECK_ALIGNMENT(long)
1087 if test "$ac_cv_type_long_long" = yes; then
1088 FP_CHECK_ALIGNMENT(long long)
1089 fi
1090 FP_CHECK_ALIGNMENT(short)
1091 FP_CHECK_ALIGNMENT(unsigned char)
1092 FP_CHECK_ALIGNMENT(unsigned int)
1093 FP_CHECK_ALIGNMENT(unsigned long)
1094 if test "$ac_cv_type_long_long" = yes; then
1095 FP_CHECK_ALIGNMENT(unsigned long long)
1096 fi
1097 FP_CHECK_ALIGNMENT(unsigned short)
1098 FP_CHECK_ALIGNMENT(void *)
1099
1100 dnl ** map standard C types and ISO types to Haskell types
1101 FPTOOLS_CHECK_HTYPE(char)
1102 FPTOOLS_CHECK_HTYPE(signed char)
1103 FPTOOLS_CHECK_HTYPE(unsigned char)
1104 FPTOOLS_CHECK_HTYPE(short)
1105 FPTOOLS_CHECK_HTYPE(unsigned short)
1106 FPTOOLS_CHECK_HTYPE(int)
1107 FPTOOLS_CHECK_HTYPE(unsigned int)
1108 FPTOOLS_CHECK_HTYPE(long)
1109 FPTOOLS_CHECK_HTYPE(unsigned long)
1110 if test "$ac_cv_type_long_long" = yes; then
1111 FPTOOLS_CHECK_HTYPE(long long)
1112 FPTOOLS_CHECK_HTYPE(unsigned long long)
1113 fi
1114 FPTOOLS_CHECK_HTYPE(float)
1115 FPTOOLS_CHECK_HTYPE(double)
1116 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
1117 FPTOOLS_CHECK_HTYPE(size_t)
1118 FPTOOLS_CHECK_HTYPE(wchar_t)
1119 dnl Int32 is a HACK for non-ISO C compilers
1120 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
1121 FPTOOLS_CHECK_HTYPE(clock_t)
1122 FPTOOLS_CHECK_HTYPE(time_t)
1123 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
1124 FPTOOLS_CHECK_HTYPE(ino_t)
1125 FPTOOLS_CHECK_HTYPE(mode_t)
1126 FPTOOLS_CHECK_HTYPE(off_t)
1127 FPTOOLS_CHECK_HTYPE(pid_t)
1128 FPTOOLS_CHECK_HTYPE(gid_t)
1129 FPTOOLS_CHECK_HTYPE(uid_t)
1130 FPTOOLS_CHECK_HTYPE(cc_t)
1131 FPTOOLS_CHECK_HTYPE(speed_t)
1132 FPTOOLS_CHECK_HTYPE(tcflag_t)
1133 FPTOOLS_CHECK_HTYPE(blkcnt_t)
1134 FPTOOLS_CHECK_HTYPE(nlink_t)
1135 FPTOOLS_CHECK_HTYPE(ssize_t)
1136 FPTOOLS_CHECK_HTYPE(rlim_t)
1137 FPTOOLS_CHECK_HTYPE(wint_t)
1138
1139 dnl ** Map OpenGL data types to Haskell types
1140 if test $GhcLibsWithOpenGL = YES ; then
1141 FPTOOLS_CHECK_HTYPE(GLboolean)
1142 FPTOOLS_CHECK_HTYPE(GLbyte)
1143 FPTOOLS_CHECK_HTYPE(GLubyte)
1144 FPTOOLS_CHECK_HTYPE(GLshort)
1145 FPTOOLS_CHECK_HTYPE(GLushort)
1146 FPTOOLS_CHECK_HTYPE(GLint)
1147 FPTOOLS_CHECK_HTYPE(GLuint)
1148 FPTOOLS_CHECK_HTYPE(GLsizei)
1149 FPTOOLS_CHECK_HTYPE(GLenum)
1150 FPTOOLS_CHECK_HTYPE(GLbitfield)
1151 FPTOOLS_CHECK_HTYPE(GLfloat)
1152 FPTOOLS_CHECK_HTYPE(GLclampf)
1153 FPTOOLS_CHECK_HTYPE(GLdouble)
1154 FPTOOLS_CHECK_HTYPE(GLclampd)
1155 fi
1156
1157 FP_CHECK_CONSTS([E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV], [#include <stdio.h>
1158 #include <errno.h>])
1159
1160 dnl ** can we open files in binary mode?
1161 FP_CHECK_CONST([O_BINARY], [#include <fcntl.h>], [0])
1162
1163 FP_CHECK_FUNC([WinExec],
1164   [@%:@include <windows.h>], [WinExec("",0)])
1165
1166 FP_CHECK_FUNC([GetModuleFileName],
1167   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1168
1169 dnl ** check return type of signal handlers
1170 dnl Foo: assumes we can use prototypes.
1171 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1172 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1173 dnl [AC_TRY_COMPILE([#include <sys/types.h>
1174 dnl #include <signal.h>
1175 dnl #ifdef signal
1176 dnl #undef signal
1177 dnl #endif
1178 dnl void (*signal (int, void (*)(int)))(int);
1179 dnl ],
1180 dnl [int i;],
1181 dnl ac_cv_type_signal_handler=void_int,
1182 dnl ac_cv_type_signal_handler=int_void)])
1183 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1184 dnl AC_DEFINE(VOID_INT_SIGNALS)
1185 dnl fi
1186
1187 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1188 AC_TYPE_SIGNAL
1189 if test "$ac_cv_type_signal" = void; then
1190   AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
1191 fi
1192
1193 dnl ** check for more functions
1194 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
1195 AC_CHECK_FUNCS(strcmp)
1196 AC_CHECK_FUNCS(realpath _fullpath)
1197 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
1198 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
1199 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
1200 AC_CHECK_FUNCS(snprintf  _snprintf )
1201 AC_CHECK_FUNCS(popen     _popen )
1202 AC_CHECK_FUNCS(pclose    _pclose )
1203 AC_CHECK_FUNCS(setenv unsetenv)
1204
1205
1206 dnl ** check for specific library functions that we are interested in
1207 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat siginterrupt symlink sysconf timelocal times vadvise localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
1208
1209 dnl ** Solaris2 needs additionl flag for getpw*_r()
1210 case "$TargetPlatform" in
1211   *-solaris2*)
1212     unix_SRC_HSC2HS_OPTS="-D_POSIX_PTHREAD_SEMANTICS"
1213     AC_SUBST(unix_SRC_HSC2HS_OPTS)
1214   ;;
1215 esac
1216
1217 dnl ** check whether this machine has gmp3 installed
1218 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1219   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1220     HaveLibGmp=NO; LibGmp=not-installed))
1221 AC_SUBST(HaveLibGmp)
1222 AC_SUBST(LibGmp)
1223
1224 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1225 HaveFrameworkHaskellSupport=NO
1226 if test $HostPlatform = "powerpc-apple-darwin"; then
1227  AC_MSG_CHECKING([for HaskellSupport.framework])
1228  save_libs="$LIBS"
1229  LIBS="-framework HaskellSupport"
1230  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1231  if test $HaveFrameworkHaskellSupport = YES; then
1232   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1233  fi;
1234  LIBS="$save_libs"
1235  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1236 fi;
1237 AC_SUBST(HaveFrameworkHaskellSupport)
1238
1239 dnl ** check for mingwex library
1240 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1241 AC_SUBST(HaveLibMingwEx)
1242
1243 if test $HaveLibMingwEx = YES ; then
1244   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1245 fi
1246
1247 if test "$HaveLibGmp" = "NO"; then
1248 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1249 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1250 fi;
1251 fi;
1252
1253 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1254 dnl    the order of these tests matters: bfd needs liberty
1255 AC_CHECK_LIB(iberty, xmalloc)
1256 AC_CHECK_LIB(bfd,    bfd_init)
1257
1258 dnl ** check for wide-char classifications
1259 dnl FreeBSD has an emtpy wctype.h, so test one of the affected
1260 dnl functions if it's really there.
1261 AC_CHECK_HEADERS(wctype.h,
1262   [AC_CHECK_FUNCS(iswspace)]
1263 )
1264
1265 dnl ** check for readline, for Hugs and hslibs' Readline
1266 dnl ncurses supersedes termcap and curses, but for compatibility,
1267 dnl we have to check for all...
1268 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1269   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1270     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1271       HaveLibTermcap=NO; LibTermcap=not-installed)))
1272
1273 if test $HaveLibTermcap = YES ; then
1274   LIBS="-l$LibTermcap $LIBS"
1275   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1276 fi
1277
1278 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1279   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1280   LibsReadline="readline $LibTermcap"
1281 else
1282   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1283   LibsReadline=
1284 fi
1285 AC_SUBST(LibsReadline)
1286
1287 if test "$HaveLibReadline"; then
1288   AC_CHECK_LIB(readline, rl_erase_empty_line,
1289     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1290     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1291   AC_CHECK_LIB(readline, rl_free_undo_list,
1292     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1293     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1294 else
1295   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1296   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1297 fi
1298
1299 dnl ** check for math library
1300 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"], [LIBM=])
1301 AC_SUBST([LIBM])
1302
1303 dnl ** check for X Window System
1304 AC_PATH_XTRA()
1305
1306 if test "$no_x" = yes; then
1307   GhcLibsWithX11=NO
1308 else
1309   GhcLibsWithX11=YES
1310 fi
1311 AC_SUBST([GhcLibsWithX11])
1312
1313 dnl ################################################################
1314 dnl Check for libraries
1315 dnl ################################################################
1316
1317 dnl ** check for libdl & RTLD_NEXT
1318
1319 dnl (Mac OS X only) ... but don't check if we already have the
1320 dnl HaskellSupport.framework
1321
1322 if test $HaveFrameworkHaskellSupport = YES; then
1323     HaveLibDL=NO
1324     HaveRtldNext=NO
1325     HaveRtldLocal=YES
1326     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1327     HaveRtldGlobal=YES
1328     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1329     HaveRtldNow=YES
1330     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1331     AC_SUBST(HaveLibDL)
1332     AC_SUBST(HaveRtldNext)
1333     AC_SUBST(HaveRtldLocal)
1334     AC_SUBST(HaveRtldGlobal)
1335     AC_SUBST(HaveRtldNow)
1336 else
1337     AC_CHECK_LIB(dl, dlopen,
1338         [HaveLibDL=YES
1339          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1340          LIBS="$LIBS -ldl"],
1341         [HaveLibDL=NO])
1342     AC_CHECK_FUNCS(dlopen)
1343     AC_SUBST(HaveLibDL)
1344
1345     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1346     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1347     AC_EGREP_CPP(yes,
1348     [
1349      #include <dlfcn.h>
1350      #ifdef RTLD_NEXT
1351             yes
1352      #endif
1353     ], [
1354       AC_MSG_RESULT(yes)
1355       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1356       HaveRtldNext=YES
1357     ], [
1358       AC_MSG_RESULT(no)
1359       HaveRtldNext=NO
1360       ])
1361     AC_SUBST(HaveRtldNext)
1362
1363     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1364     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1365     AC_EGREP_CPP(yes,
1366     [
1367      #include <dlfcn.h>
1368      #ifdef RTLD_LOCAL
1369             yes
1370      #endif
1371     ], [
1372       AC_MSG_RESULT(yes)
1373       AC_DEFINE(HAVE_RTLDLOCAL)
1374       HaveRtldLocal=YES
1375     ], [
1376       AC_MSG_RESULT(no)
1377       HaveRtldLocal=NO
1378       ])
1379     AC_SUBST(HaveRtldLocal)
1380
1381     dnl ** RTLD_GLOBAL isn't available on openbsd
1382     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1383     AC_EGREP_CPP(yes,
1384     [
1385      #include <dlfcn.h>
1386      #ifdef RTLD_GLOBAL
1387             yes
1388      #endif
1389     ], [
1390       AC_MSG_RESULT(yes)
1391       AC_DEFINE(HAVE_RTLDGLOBAL)
1392       HaveRtldGlobal=YES
1393     ], [
1394       AC_MSG_RESULT(no)
1395       HaveRtldGlobal=NO
1396       ])
1397     AC_SUBST(HaveRtldGlobal)
1398
1399     dnl ** RTLD_NOW isn't available on openbsd
1400     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1401     AC_EGREP_CPP(yes,
1402     [
1403      #include <dlfcn.h>
1404      #ifdef RTLD_NOW
1405             yes
1406      #endif
1407     ], [
1408       AC_MSG_RESULT(yes)
1409       AC_DEFINE(HAVE_RTLDNOW)
1410       HaveRtldNow=YES
1411     ], [
1412       AC_MSG_RESULT(no)
1413       HaveRtldNow=NO
1414       ])
1415     AC_SUBST(HaveRtldNow)
1416 fi
1417
1418 dnl ---------- usleep ----------
1419 dnl --- stolen from guile configure ---
1420 dnl --- FIXME: /usr/include/unistd.h can't be right?
1421
1422 ### On some systems usleep has no return value.  If it does have one,
1423 ### we'd like to return it; otherwise, we'll fake it.
1424 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1425   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1426                    /usr/include/unistd.h,
1427                    [cv_func_usleep_return_type=void],
1428                    [cv_func_usleep_return_type=int])])
1429 case "$cv_func_usleep_return_type" in
1430   "void" )
1431     AC_DEFINE([USLEEP_RETURNS_VOID], [1], [Define if the system headers declare usleep to return void.])
1432   ;;
1433 esac
1434
1435 dnl --------------------------------------------------
1436 dnl * test for in_addr_t
1437 dnl --------------------------------------------------
1438 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1439 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1440  [ AC_DEFINE([HAVE_IN_ADDR_T], [1], [Define to 1 if in_addr_t is available.]) AC_MSG_RESULT(yes) ],
1441  AC_MSG_RESULT(no))
1442
1443 dnl --------------------------------------------------
1444 dnl * test for Linux sendfile(2)
1445 dnl --------------------------------------------------
1446 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1447 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1448  [ AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have a Linux sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1449  AC_MSG_RESULT(no))
1450
1451 dnl --------------------------------------------------
1452 dnl * test for BSD sendfile(2)
1453 dnl --------------------------------------------------
1454 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1455 AC_EGREP_HEADER(sendfile, sys/socket.h,
1456  [ AC_DEFINE([HAVE_BSD_SENDFILE], [1], [Define to 1 if you have a BSDish sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1457  AC_MSG_RESULT(no))
1458
1459 dnl --------------------------------------------------
1460 dnl * test for GTK+
1461 dnl --------------------------------------------------
1462
1463 AC_PATH_PROGS([GTK_CONFIG], [gtk-config gtk12-config])
1464 if test -n "$GTK_CONFIG"; then
1465   AC_CACHE_CHECK([for version of GTK+], [fp_cv_gtk_version],
1466     [fp_cv_gtk_version=`$GTK_CONFIG --version`])
1467   FP_COMPARE_VERSIONS([$fp_cv_gtk_version], [-lt], [1.2],
1468     [AC_MSG_WARN([GTK+ not usable, need at least version 1.2])
1469      GTK_CONFIG=])
1470 fi
1471 AC_SUBST([GTK_CONFIG])
1472
1473 dnl --------------------------------------------------
1474 dnl * Miscellaneous feature tests
1475 dnl --------------------------------------------------
1476
1477 dnl ** can we get alloca?
1478 AC_FUNC_ALLOCA
1479
1480 dnl ** Working vfork?
1481 AC_FUNC_VFORK
1482
1483 dnl ** determine whether or not const works
1484 AC_C_CONST
1485
1486 dnl ** are we big endian?
1487 AC_C_BIGENDIAN
1488
1489 dnl ** check for leading underscores in symbol names
1490 FPTOOLS_UNDERSCORE
1491
1492 dnl ** check for ld, and whether ld has -x option
1493 AC_PATH_PROG(LdCmdRaw, ld)
1494 case $HostOS_CPP in
1495  mingw32)
1496         if test "${OSTYPE}" == "msys"
1497            then
1498              LdCmd=${LdCmdRaw}
1499            else
1500              LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1501         fi
1502            ;;
1503  *) LdCmd=${LdCmdRaw}
1504     ;;
1505 esac
1506 AC_SUBST(LdCmd)
1507 FPTOOLS_LD_X
1508
1509 FP_EMPTY_STRUCTS
1510
1511 AC_MSG_CHECKING([for SIGPOLL])
1512 AC_EGREP_CPP(we_have_sigpoll,
1513 [#include <signal.h>
1514 #ifdef SIGPOLL
1515 we_have_sigpoll
1516 #endif
1517 ], AC_DEFINE([HAVE_SIGPOLL], [1], [Define to 1 if you have the sigpoll() function.]) haveSIGPOLL=yes, haveSIGPOLL=no)
1518 AC_MSG_RESULT([$haveSIGPOLL])
1519
1520 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1521 AC_EGREP_CPP(we_have_that_sysconf_thing,
1522 [
1523 #include <unistd.h>
1524 #ifdef _SC_GETGR_R_SIZE_MAX
1525 we_have_that_sysconf_thing
1526 #endif
1527 ],
1528 [AC_MSG_RESULT([yes])
1529 AC_DEFINE([HAVE_SC_GETGR_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETGR_R_SIZE_MAX.])],
1530 [AC_MSG_RESULT([no])])
1531
1532 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1533 AC_EGREP_CPP(we_have_that_sysconf_thing,
1534 [
1535 #include <unistd.h>
1536 #ifdef _SC_GETPW_R_SIZE_MAX
1537 we_have_that_sysconf_thing
1538 #endif
1539 ],
1540 [AC_MSG_RESULT([yes])
1541 AC_DEFINE([HAVE_SC_GETPW_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETPW_R_SIZE_MAX.])],
1542 [AC_MSG_RESULT([no])])
1543
1544 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )