configure.in

   1 dnl == autoconf source for the Glasgow FP tools ==
   2 dnl (run "grep '^dnl \*' configure.in | 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 * Declare subdirectories that have a private configure script
  20 dnl
  21 dnl After the toplevel configuration is complete, the script will recurse into
  22 dnl these subdirectories (the use of cache values makes repeated checks cheap)
  23 AC_CONFIG_SUBDIRS(ghc)
  24
  25 # -------------------------------------------------------------------------
  26 # Prepare to generate the following header files
  27 #
  28 #
  29 AC_CONFIG_HEADER(mk/config.h)
  30
  31 # No, semi-sadly, we don't do `--srcdir'...
  32 if test x"$srcdir" != 'x.' ; then
  33     echo "This configuration does not support the \`--srcdir' option.."
  34     exit 1
  35 fi
  36
  37 #
  38 # Remove common automounter nonsense + convert from UNC to DOS style paths
  39 # (UNC awareness isn't quite there yet for cygwin32-beta18 and consituent tools.)
  40 #
  41 hardtop=`pwd`
  42 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|' | sed 's|^//\(.\)/|\1:/|' `
  43
  44 echo ''
  45 echo "*** The top of your build tree is: $hardtop"
  46 AC_SUBST(hardtop)
  47
  48 dnl--------------------------------------------------------------------
  49 dnl * Choose host(/target/build) platform
  50 dnl--------------------------------------------------------------------
  51
  52 dnl Guess host/target/build platform(s) if necessary.
  53 AC_CANONICAL_SYSTEM
  54
  55 # "$host" defaults to "$target"
  56 if test "x$host" = xNONE ; then
  57     host=$target
  58 fi
  59
  60 dnl ** canonicalize platform names
  61 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  62 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  63 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  64
  65 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  66     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  67     exit 1
  68 fi
  69
  70 exeext=''
  71 #
  72 # The following will be more difficult when we *are* cross-compiling.
  73 # Suitable names to slam in *_CPP are in platform.h.in.
  74 # We also record the architecture, vendor, and operating system (OS)
  75 # separately.
  76 case $HostPlatform in
  77 alpha-dec-osf[[12]]*)
  78         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  79         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  80         BuildPlatform=alpha-dec-osf1  # hack
  81         HostPlatform_CPP='alpha_dec_osf1'
  82         HostArch_CPP='alpha'
  83         HostVendor_CPP='dec'
  84         HostOS_CPP='osf1'
  85         ;;
  86 alpha-dec-osf[[34]]*)
  87         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  88         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  89         BuildPlatform=alpha-dec-osf3  # hack
  90         HostPlatform_CPP='alpha_dec_osf3'
  91         HostArch_CPP='alpha'
  92         HostVendor_CPP='dec'
  93         HostOS_CPP='osf3'
  94         ;;
  95 alpha-unknown-linux)
  96         HostPlatform=alpha-unknown-linux
  97         TargetPlatform=alpha-unknown-linux
  98         BuildPlatform=alpha-unknown-linux
  99         HostPlatform_CPP='alpha_unknown_linux'
 100         HostArch_CPP='alpha'
 101         HostVendor_CPP='unknown'
 102         HostOS_CPP='linux'
 103         ;;
 104 alpha-unknown-freebsd*)
 105         HostPlatform=alpha-unknown-freebsd
 106         TargetPlatform=alpha-unknown-freebsd
 107         BuildPlatform=alpha-unknown-freebsd
 108         HostPlatform_CPP='alpha_unknown_freebsd'
 109         HostArch_CPP='alpha'
 110         HostVendor_CPP='unknown'
 111         HostOS_CPP='freebsd'
 112         ;;
 113 hppa1.1-hp-hpux*)
 114         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 115         TargetPlatform=hppa1.1-hp-hpux
 116         BuildPlatform=hppa1.1-hp-hpux
 117         HostPlatform_CPP='hppa1_1_hp_hpux'
 118         HostArch_CPP='hppa1_1'
 119         HostVendor_CPP='hp'
 120         HostOS_CPP='hpux'
 121         ;;
 122 i[[3456]]86-*-linuxaout*)
 123         HostPlatform=i386-unknown-linuxaout   # hack again
 124         TargetPlatform=i386-unknown-linuxaout
 125         BuildPlatform=i386-unknown-linuxaout
 126         HostPlatform_CPP='i386_unknown_linuxaout'
 127         HostArch_CPP='i386'
 128         HostVendor_CPP='unknown'
 129         HostOS_CPP='linuxaout'
 130         ;;
 131 i[[3456]]86-*-linux*)
 132         HostPlatform=i386-unknown-linux # hack again
 133         TargetPlatform=i386-unknown-linux
 134         BuildPlatform=i386-unknown-linux
 135         HostPlatform_CPP='i386_unknown_linux'
 136         HostArch_CPP='i386'
 137         HostVendor_CPP='unknown'
 138         HostOS_CPP='linux'
 139         ;;
 140 i[[3456]]86-*-freebsd[[^0-2]]*) # FreeBSD 3.0+ uses ELF
 141         HostPlatform=i386-unknown-freebsd # hack again
 142         TargetPlatform=i386-unknown-freebsd
 143         BuildPlatform=i386-unknown-freebsd
 144         HostPlatform_CPP='i386_unknown_freebsd'
 145         HostArch_CPP='i386'
 146         HostVendor_CPP='unknown'
 147         HostOS_CPP='freebsd'
 148         ;;
 149 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 150         HostPlatform=i386-unknown-freebsd2 # hack again
 151         TargetPlatform=i386-unknown-freebsd2
 152         BuildPlatform=i386-unknown-freebsd2
 153         HostPlatform_CPP='i386_unknown_freebsd2'
 154         HostArch_CPP='i386'
 155         HostVendor_CPP='unknown'
 156         HostOS_CPP='freebsd2'
 157         ;;
 158 i[[3456]]86-*-netbsd*)
 159         HostPlatform=i386-unknown-netbsd # hack again
 160         TargetPlatform=i386-unknown-netbsd
 161         BuildPlatform=i386-unknown-netbsd
 162         HostPlatform_CPP='i386_unknown_netbsd'
 163         HostArch_CPP='i386'
 164         HostVendor_CPP='unknown'
 165         HostOS_CPP='netbsd'
 166         ;;
 167 i[[3456]]86-*-solaris2*)
 168         HostPlatform=i386-unknown-solaris2 # hack again
 169         TargetPlatform=i386-unknown-solaris2
 170         BuildPlatform=i386-unknown-solaris2
 171         HostPlatform_CPP='i386_unknown_solaris2'
 172         HostArch_CPP='i386'
 173         HostVendor_CPP='unknown'
 174         HostOS_CPP='solaris2'
 175         ;;
 176 i[[3456]]86-*-cygwin32*)
 177         HostPlatform=i386-unknown-cygwin32 # hack again
 178         TargetPlatform=i386-unknown-cygwin32
 179         BuildPlatform=i386-unknown-cygwin32
 180         HostPlatform_CPP='i386_unknown_cygwin32'
 181         HostArch_CPP='i386'
 182         HostVendor_CPP='unknown'
 183         HostOS_CPP='cygwin32'
 184         exeext='.exe'
 185         ;;
 186 i[[3456]]86-*-mingw32*)
 187         HostPlatform=i386-unknown-mingw32 # hack again
 188         TargetPlatform=i386-unknown-mingw32
 189         BuildPlatform=i386-unknown-mingw32
 190         HostPlatform_CPP='i386_unknown_mingw32'
 191         HostArch_CPP='i386'
 192         HostVendor_CPP='unknown'
 193         HostOS_CPP='mingw32'
 194         exeext='.exe'
 195         # We assume you're using mingw32 via the gcc that comes
 196         # with cygwin, and not the native port, so let's augment
 197         # the gcc command-line used here with -mno-cygwin to
 198         # arrange for good things to happen.
 199         CFLAGS="-mno-cygwin $CFLAGS"
 200         ;;
 201 m68k-next-nextstep2)
 202         HostPlatform_CPP='m68k_next_nextstep2'
 203         HostArch_CPP='m68k'
 204         HostVendor_CPP='next'
 205         HostOS_CPP='nextstep2'
 206         ;;
 207 m68k-next-nextstep3)
 208         HostPlatform_CPP='m68k_next_nextstep3'
 209         HostArch_CPP='m68k'
 210         HostVendor_CPP='next'
 211         HostOS_CPP='nextstep3'
 212         ;;
 213 i[[3456]]86-next-nextstep3)
 214         HostPlatform=i386-next-nextstep3 # hack again
 215         TargetPlatform=i386-next-nextstep3
 216         BuildPlatform=i386-next-nextstep3
 217         HostPlatform_CPP='i386_next_nextstep3'
 218         HostArch_CPP='i386'
 219         HostVendor_CPP='next'
 220         HostOS_CPP='nextstep3'
 221         ;;
 222 m68k-sun-sunos4*)
 223         HostPlatform=m68k-sun-sunos4
 224         TargetPlatform=m68k-sun-sunos4 #hack
 225         BuildPlatform=m68k-sun-sunos4 #hack
 226         HostPlatform_CPP='m68k_sun_sunos4'
 227         HostArch_CPP='m68k'
 228         HostVendor_CPP='sun'
 229         HostOS_CPP='sunos4'
 230         ;;
 231 mips-dec-ultrix*)
 232         HostPlatform_CPP='mips_dec_ultrix'
 233         HostArch_CPP='mipsel'   # NB a little different
 234         HostVendor_CPP='dec'
 235         HostOS_CPP='ultrix'
 236         ;;
 237 mips-sgi-irix*)
 238         HostPlatform=mips-sgi-irix
 239         TargetPlatform=mips-sgi-irix #hack
 240         BuildPlatform=mips-sgi-irix #hack
 241         HostPlatform_CPP='mips_sgi_irix'
 242         HostArch_CPP='mipseb'   # NB a little different
 243         HostVendor_CPP='sgi'
 244         HostOS_CPP='irix'
 245         ;;
 246 rs6000-ibm-aix*)
 247         HostPlatform=rs6000-ibm-aix
 248         TargetPlatform=rs6000-ibm-aix #hack
 249         BuildPlatform=rs6000-ibm-aix #hack
 250         HostPlatform_CPP='rs6000_ibm_aix'
 251         HostArch_CPP='rs6000'
 252         HostVendor_CPP='ibm'
 253         HostOS_CPP='aix'
 254         ;;
 255 powerpc-ibm-aix*)
 256         HostPlatform=powerpc-ibm-aix
 257         TargetPlatform=powerpc-ibm-aix #hack
 258         BuildPlatform=powerpc-ibm-aix #hack
 259         HostPlatform_CPP='powerpc_ibm_aix'
 260         HostArch_CPP='powerpc'
 261         HostVendor_CPP='ibm'
 262         HostOS_CPP='aix'
 263         ;;
 264 sparc-sun-sunos4*)
 265         HostPlatform=sparc-sun-sunos4
 266         TargetPlatform=sparc-sun-sunos4 #hack
 267         BuildPlatform=sparc-sun-sunos4 #hack
 268         HostPlatform_CPP='sparc_sun_sunos4'
 269         HostArch_CPP='sparc'
 270         HostVendor_CPP='sun'
 271         HostOS_CPP='sunos4'
 272         ;;
 273 sparc-sun-solaris2*)
 274         HostPlatform=sparc-sun-solaris2
 275         TargetPlatform=sparc-sun-solaris2 #hack
 276         BuildPlatform=sparc-sun-solaris2 #hack
 277         HostPlatform_CPP='sparc_sun_solaris2'
 278         HostArch_CPP='sparc'
 279         HostVendor_CPP='sun'
 280         HostOS_CPP='solaris2'
 281         ;;
 282 *)
 283         echo "Unrecognised platform: $HostPlatform"
 284         exit 1
 285         ;;
 286 esac
 287 echo "Canonicalised to: $HostPlatform"
 288 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 289 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 290
 291 BuildPlatform_CPP=$HostPlatform_CPP
 292 TargetPlatform_CPP=$HostPlatform_CPP
 293 BuildArch_CPP=$HostArch_CPP
 294 TargetArch_CPP=$HostArch_CPP
 295 BuildOS_CPP=$HostOS_CPP
 296 HostOS_Full=$host_os
 297 TargetOS_CPP=$HostOS_CPP
 298 BuildVendor_CPP=$HostVendor_CPP
 299 TargetVendor_CPP=$HostVendor_CPP
 300
 301 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 302 dnl AC_SUBST(BuildPlatform)
 303
 304 AC_SUBST(HostPlatform)
 305 AC_SUBST(TargetPlatform)
 306 AC_SUBST(HostPlatform_CPP)
 307 dnl AC_SUBST(BuildPlatform_CPP)
 308 dnl AC_SUBST(TargetPlatform_CPP)
 309
 310 AC_SUBST(HostArch_CPP)
 311 dnl AC_SUBST(BuildArch_CPP)
 312 dnl AC_SUBST(TargetArch_CPP)
 313
 314 AC_SUBST(HostOS_CPP)
 315 AC_SUBST(HostOS_Full)
 316 dnl AC_SUBST(BuildOS_CPP)
 317 dnl AC_SUBST(TargetOS_CPP)
 318
 319 AC_SUBST(HostVendor_CPP)
 320 dnl AC_SUBST(BuildVendor_CPP)
 321 dnl AC_SUBST(TargetVendor_CPP)
 322
 323 AC_SUBST(exeext)
 324
 325 AC_PATH_PROG(GHC,ghc)
 326 AC_PATH_PROGS(NHC,nhc nhc98)
 327 AC_PATH_PROG(HBC,hbc)
 328
 329 dnl --------------------------------------------------------------
 330 dnl * Project specific configuration options
 331 dnl --------------------------------------------------------------
 332 dnl What follows is a bunch of options that can either be configured
 333 dnl through command line options to the configure script or by
 334 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 335 dnl use either is considered a Feature.
 336
 337 dnl ** What command to use to compile compiler sources ?
 338 dnl --------------------------------------------------------------
 339 AC_ARG_WITH(hc,
 340 [  --with-hc=<haskell compiler>
 341         Use a command different from 'ghc' to compile up Haskell code.
 342         (no claims currently made that this will work with a compiler other than a
 343          recent version of GHC, but you could always try...)
 344 ],
 345 [WithHc="$withval"],
 346 [WithHc=$GHC]
 347 )
 348 AC_SUBST(WithHc)
 349
 350 dnl ** Which gcc to use?
 351 dnl --------------------------------------------------------------
 352 AC_ARG_WITH(gcc,
 353 [  --with-gcc=<gcc command>
 354         Use a different command instead of 'gcc' for the GNU C compiler.
 355 ],
 356 [WhatGccIsCalled="$withval"],
 357 [WhatGccIsCalled="gcc"]
 358 )
 359 AC_SUBST(WhatGccIsCalled)
 360
 361 dnl ** Booting from .hc files?
 362 dnl --------------------------------------------------------------
 363 AC_ARG_ENABLE(hc-boot,
 364 [  --enable-hc-boot
 365         Boot the Glasgow Haskell Compiler from intermediate .hc files.
 366         (This option is mostly of interest to porters.)
 367 ],
 368 [BootingFromHc=YES],
 369 [BootingFromHc=NO]
 370 )
 371 AC_SUBST(BootingFromHc)
 372
 373
 374 dnl ** Enable the construction of Win32 DLLs?
 375 dnl --------------------------------------------------------------
 376 AC_ARG_ENABLE(win32-dlls,
 377 [  --enable-win32-dlls
 378         If on a Win32 platform running mingw32/cygwin, enable the
 379         construction of DLLs containing ghc-compiled code.
 380 ],
 381 [
 382 case $HostOS_CPP in
 383 cygwin32) ;;
 384 mingw32)  ;;
 385 *)    echo "Unrecognised win32 platform: $HostPlatform"
 386       exit 1
 387       ;;
 388 esac
 389 EnableWin32DLLs=YES
 390 ],
 391 [EnableWin32DLLs=NO]
 392 )
 393 AC_SUBST(EnableWin32DLLs)
 394 if test x"$EnableWin32DLLs" = "xYES" ; then
 395  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 396 fi
 397
 398 dnl --------------------------------------------------------------
 399 dnl End of configure script option section
 400 dnl --------------------------------------------------------------
 401
 402
 403 dnl --------------------------------------------------------------
 404 dnl * General configuration checks
 405 dnl --------------------------------------------------------------
 406
 407 dnl ** does #! work?
 408 AC_SYS_INTERPRETER()
 409
 410 dnl ** look for `perl', but watch out for version 4.035
 411 AC_PATH_PROG(PerlCmd,perl)
 412 if test -z "$PerlCmd"; then
 413    echo "You must install perl before you can continue"
 414    echo "Perhaps it is already installed, but not in your PATH?"
 415    exit 1
 416 else
 417 FPTOOLS_CHECK_PERL_VERSION
 418 fi
 419
 420 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 421 FPTOOLS_SHEBANG_PERL
 422
 423
 424 dnl ** look for GCC and find out which version
 425 dnl     Figure out which C compiler to use.  Gcc is preferred.
 426 dnl     If gcc, make sure it's at least 2.1
 427 dnl
 428 AC_PROG_CC
 429 FPTOOLS_HAVE_GCC
 430
 431 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 432 AC_PROG_CPP
 433
 434 dnl ** figure out how to do context diffs
 435 FPTOOLS_PROG_DIFF
 436
 437
 438 dnl ** look for a decent parser generator (bison preferred)
 439 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
 440 dnl  on the suitability of the 'yacc' returned.)
 441 FPTOOLS_PROG_YACCY
 442
 443 dnl ** Find lex command (lex or flex) and library (-ll or -lfl)
 444 dnl     ( not that we care about the latter, see mk/config.mk.in )
 445 AC_PROG_LEX
 446
 447
 448 dnl ** figure out how to do a BSD-ish install
 449 AC_PROG_INSTALL
 450
 451 dnl If you can run configure, you certainly have /bin/sh
 452 AC_DEFINE(HAVE_BIN_SH)
 453
 454 dnl ** how to invoke `ar' and `ranlib'
 455 FPTOOLS_PROG_AR_AND_RANLIB
 456
 457
 458 dnl ** Check to see whether ln -s works
 459 AC_PROG_LN_S
 460
 461
 462 dnl ** Find the path to sed
 463 AC_PATH_PROG(SedCmd,sed)
 464
 465
 466 dnl ** check for time command
 467 AC_PATH_PROG(TimeCmd,time)
 468
 469
 470 dnl ** check for tar
 471 dnl   if GNU tar is named gtar, look for it first.
 472 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 473
 474 dnl ** check for gzip/compress
 475 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 476
 477 compress_nm=`basename $CompressCmd`
 478 if test x"$compress_nm" = xgzip; then
 479   CompressCmd="$CompressCmd -d"
 480   CompressSuffix="gz"
 481 else
 482   CompressSuffix="Z"
 483 fi
 484 AC_SUBST(CompressCmd)
 485 AC_SUBST(CompressSuffix)
 486
 487 dnl ** check for installed happy binary + version
 488 dnl    (don't do it if we're booting from .hc files though.)
 489 if (test "$BootingFromHc" = "NO"); then
 490 FPTOOLS_HAPPY
 491 fi;
 492
 493 dnl --------------------------------------------------
 494 dnl ### program checking section ends here ###
 495 dnl --------------------------------------------------
 496
 497 dnl --------------------------------------------------
 498 dnl * Platform header file and syscall feature tests
 499 dnl ### checking the state of the local header files and syscalls ###
 500
 501 dnl ** check for full ANSI header (.h) files
 502 AC_HEADER_STDC
 503
 504 dnl ** check for specific header (.h) files that we are interested in
 505 AC_CHECK_HEADERS(Files.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdlib.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 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/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h vfork.h readline/readline.h readline/history.h bfd.h winsock.h)
 506
 507 dnl ** check for DOS include files
 508 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 509
 510 dnl ** check for Windows include files
 511 AC_CHECK_HEADERS(windows.h)
 512
 513 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 514 AC_HEADER_TIME
 515
 516 dnl dynamic loading include files
 517 AC_CHECK_HEADERS(dlfcn.h dl.h)
 518
 519 dnl ** check for farcalloc (in bcc)
 520 AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
 521
 522 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 523 AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
 524
 525 dnl ** how do we get a timezone name, and UTC offset ?
 526 AC_STRUCT_TIMEZONE
 527
 528 dnl ** what's the type of timezone?
 529 FPTOOLS_HAVE_TIMEZONE
 530 FPTOOLS_TYPE_TIMEZONE
 531
 532 dnl ** do we have altzone?
 533 FPTOOLS_ALTZONE
 534
 535 dnl ** does struct stat contain st_blksize?
 536 AC_STRUCT_ST_BLKSIZE
 537
 538 dnl ** what are the sizes of various types
 539 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 540 AC_CHECK_SIZEOF(char,        1)
 541 AC_CHECK_SIZEOF(int,         4)
 542 AC_CHECK_SIZEOF(unsigned int,4)
 543 AC_CHECK_SIZEOF(float,       4)
 544 AC_CHECK_SIZEOF(double,      8)
 545 AC_CHECK_SIZEOF(long,        4)
 546 AC_CHECK_SIZEOF(void *,      4)
 547
 548 dnl ** what are alignment constraints on various types
 549 FPTOOLS_CHECK_ALIGNMENT(char)
 550 FPTOOLS_CHECK_ALIGNMENT(int)
 551 FPTOOLS_CHECK_ALIGNMENT(void *)
 552 FPTOOLS_CHECK_ALIGNMENT(unsigned int) dnl redundant but harmless
 553 FPTOOLS_CHECK_ALIGNMENT(long)
 554 FPTOOLS_CHECK_ALIGNMENT(float)
 555 FPTOOLS_CHECK_ALIGNMENT(double)
 556
 557 dnl ** do we have long longs?
 558 FPTOOLS_C_LONG_LONG
 559
 560 dnl ** can we open files in binary mode?
 561 FPTOOLS_O_BINARY
 562
 563 dnl ** check for GetModuleFileName and WinExec (windows only)
 564 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 565 dnl Doesn't work because the linker can't see the functions if
 566 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 567
 568 FPTOOLS_TRY_LINK_NOWARN(,[
 569 #if HAVE_WINDOWS_H
 570 #include <windows.h>
 571 #endif
 572 main() {
 573   WinExec("",0);
 574   exit(0);
 575 }
 576 ],
 577 [have_winexec=1],
 578 [have_winexec=0])
 579 if test "$have_winexec" = "1"; then
 580 AC_DEFINE(HAVE_WINEXEC)
 581 fi
 582
 583 FPTOOLS_TRY_LINK_NOWARN(,[
 584 #if HAVE_WINDOWS_H
 585 #include <windows.h>
 586 #endif
 587 main() {
 588   char* dir;
 589   GetModuleFileName((HMODULE)0,dir,0);
 590   exit(0);
 591 }
 592 ],
 593 [have_getmodulefilename=1],
 594 [have_getmodulefilename=0])
 595 if test "$have_getmodulefilename" = "1"; then
 596 AC_DEFINE(HAVE_GETMODULEFILENAME)
 597 fi
 598
 599 dnl ** check return type of signal handlers
 600 dnl Foo: assumes we can use prototypes.
 601 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 602 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 603 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 604 dnl #include <signal.h>
 605 dnl #ifdef signal
 606 dnl #undef signal
 607 dnl #endif
 608 dnl void (*signal (int, void (*)(int)))(int);
 609 dnl ],
 610 dnl [int i;],
 611 dnl ac_cv_type_signal_handler=void_int,
 612 dnl ac_cv_type_signal_handler=int_void)])
 613 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 614 dnl AC_DEFINE(VOID_INT_SIGNALS)
 615 dnl fi
 616
 617 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 618 AC_TYPE_SIGNAL
 619 if test "$ac_cv_type_signal" = void; then
 620 AC_DEFINE(VOID_INT_SIGNALS)
 621 fi
 622
 623 dnl ** check for more functions
 624 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 625 AC_CHECK_FUNCS(strcmp)
 626 AC_CHECK_FUNCS(realpath _fullpath)
 627 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 628 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 629 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 630 AC_CHECK_FUNCS(snprintf  _snprintf )
 631 AC_CHECK_FUNCS(popen     _popen )
 632 AC_CHECK_FUNCS(pclose    _pclose )
 633
 634
 635 dnl ** check for specific library functions that we are interested in
 636 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat symlink sysconf timelocal times vadvise vfork)
 637
 638 dnl ** check whether this machine has gmp2 installed
 639 AC_CHECK_LIB(gmp,  mpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 640   AC_CHECK_LIB(gmp2, mpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp2,
 641     HaveLibGmp=No; LibGmp=not-installed))
 642 AC_SUBST(HaveLibGmp)
 643 AC_SUBST(LibGmp)
 644
 645 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 646 dnl    the order of these tests matters: bfd needs liberty
 647 AC_CHECK_LIB(iberty, xmalloc)
 648 AC_CHECK_LIB(bfd,    bfd_init)
 649
 650 dnl ** check for readline, for Hugs
 651 AC_CHECK_LIB(readline, readline,
 652 [
 653 AC_DEFINE(HAVE_LIBREADLINE,1)
 654 HaveLibReadline=YES
 655 ],
 656 [
 657 AC_DEFINE(HAVE_LIBREADLINE,0)
 658 HaveLibReadline=NO
 659 ],
 660 -ltermcap)
 661 AC_SUBST(HaveLibReadline)
 662
 663
 664 dnl ################################################################
 665 dnl Check for libraries
 666 dnl ################################################################
 667
 668 FPTOOLS_CHECK_LIB_NOWARN(dl, dlopen)
 669 FPTOOLS_CHECK_LIB_NOWARN(dld, shl_load)
 670 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
 671
 672 dnl --------------------------------------------------
 673 dnl * Miscellaneous feature tests
 674 dnl --------------------------------------------------
 675
 676 dnl ** can we get alloca?
 677 AC_FUNC_ALLOCA
 678
 679 dnl ** determine whether or not const works
 680 AC_C_CONST
 681
 682 dnl ** determine whether ANSI-function prototypes work?
 683 AC_C_PROTOTYPES
 684
 685 dnl ** are we big endian?
 686 AC_C_BIGENDIAN
 687 # Allay users' general fear of warnings of any kind.
 688 errprint((fptools configure script wizard sez: "don't worry, the above warning is harmless (to us.)")
 689 )
 690
 691 dnl ** determine the return type of signal()
 692 AC_TYPE_SIGNAL
 693
 694 dnl ** check for leading underscores in symbol names
 695 FPTOOLS_UNDERSCORE
 696
 697 dnl ** how is the end of text section signalled?
 698 FPTOOLS_END_TEXT_SECTION
 699
 700 dnl ** how is the end of data section signalled?
 701 FPTOOLS_END_DATA_SECTION
 702
 703 dnl ** code before data?
 704 FPTOOLS_CODE_BEFORE_DATA
 705
 706 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
 707
 708 echo ''
 709 echo '************************************************'
 710 echo '*** NOW DO: gmake boot followed by gmake all'
 711 echo '***         (where gmake == GNU make)'
 712 echo '************************************************'
 713 exit 0