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 # -------------------------------------------------------------------------
  20 # Prepare to generate the following header files
  21 #
  22 #
  23 AC_CONFIG_HEADER(mk/config.h)
  24
  25 # No, semi-sadly, we don't do `--srcdir'...
  26 if test x"$srcdir" != 'x.' ; then
  27     echo "This configuration does not support the \`--srcdir' option.."
  28     exit 1
  29 fi
  30
  31 #
  32 # Remove common automounter nonsense + convert from UNC to DOS style paths
  33 # (UNC awareness isn't quite there yet for cygwin32-beta18 and consituent tools.)
  34 #
  35 hardtop=`pwd`
  36 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|' | sed 's|^//\(.\)/|\1:/|' `
  37
  38 echo ''
  39 echo "*** The top of your build tree is: $hardtop"
  40 AC_SUBST(hardtop)
  41
  42 dnl--------------------------------------------------------------------
  43 dnl * Choose host(/target/build) platform
  44 dnl--------------------------------------------------------------------
  45
  46 dnl Guess host/target/build platform(s) if necessary.
  47 AC_CANONICAL_SYSTEM
  48
  49 # "$host" defaults to "$target"
  50 if test "x$host" = xNONE ; then
  51     host=$target
  52 fi
  53
  54 dnl ** canonicalize platform names
  55 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  56 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  57 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  58
  59 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  60     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  61     exit 1
  62 fi
  63
  64 exeext=''
  65 #
  66 # The following will be more difficult when we *are* cross-compiling.
  67 # Suitable names to slam in *_CPP are in platform.h.in.
  68 # We also record the architecture, vendor, and operating system (OS)
  69 # separately.
  70 case $HostPlatform in
  71 alpha-dec-osf[[12]]*)
  72         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  73         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  74         BuildPlatform=alpha-dec-osf1  # hack
  75         HostPlatform_CPP='alpha_dec_osf1'
  76         HostArch_CPP='alpha'
  77         HostVendor_CPP='dec'
  78         HostOS_CPP='osf1'
  79         ;;
  80 alpha-dec-osf[[34]]*)
  81         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  82         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  83         BuildPlatform=alpha-dec-osf3  # hack
  84         HostPlatform_CPP='alpha_dec_osf3'
  85         HostArch_CPP='alpha'
  86         HostVendor_CPP='dec'
  87         HostOS_CPP='osf3'
  88         ;;
  89 hppa1.1-hp-hpux*)
  90         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
  91         TargetPlatform=hppa1.1-hp-hpux
  92         BuildPlatform=hppa1.1-hp-hpux
  93         HostPlatform_CPP='hppa1_1_hp_hpux'
  94         HostArch_CPP='hppa1_1'
  95         HostVendor_CPP='hp'
  96         HostOS_CPP='hpux'
  97         ;;
  98 i[[3456]]86-*-linuxaout*)
  99         HostPlatform=i386-unknown-linuxaout   # hack again
 100         TargetPlatform=i386-unknown-linuxaout
 101         BuildPlatform=i386-unknown-linuxaout
 102         HostPlatform_CPP='i386_unknown_linuxaout'
 103         HostArch_CPP='i386'
 104         HostVendor_CPP='unknown'
 105         HostOS_CPP='linuxaout'
 106         ;;
 107 i[[3456]]86-*-linux*)
 108         HostPlatform=i386-unknown-linux # hack again
 109         TargetPlatform=i386-unknown-linux
 110         BuildPlatform=i386-unknown-linux
 111         HostPlatform_CPP='i386_unknown_linux'
 112         HostArch_CPP='i386'
 113         HostVendor_CPP='unknown'
 114         HostOS_CPP='linux'
 115         ;;
 116 i[[3456]]86-*-freebsd3*) # FreeBSD 3.0+ uses ELF
 117         HostPlatform=i386-unknown-freebsd3 # hack again
 118         TargetPlatform=i386-unknown-freebsd3
 119         BuildPlatform=i386-unknown-freebsd3
 120         HostPlatform_CPP='i386_unknown_freebsd3'
 121         HostArch_CPP='i386'
 122         HostVendor_CPP='unknown'
 123         HostOS_CPP='freebsd3'
 124         ;;
 125 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 126         HostPlatform=i386-unknown-freebsd2 # hack again
 127         TargetPlatform=i386-unknown-freebsd2
 128         BuildPlatform=i386-unknown-freebsd2
 129         HostPlatform_CPP='i386_unknown_freebsd2'
 130         HostArch_CPP='i386'
 131         HostVendor_CPP='unknown'
 132         HostOS_CPP='freebsd2'
 133         ;;
 134 i[[3456]]86-*-netbsd*)
 135         HostPlatform=i386-unknown-netbsd # hack again
 136         TargetPlatform=i386-unknown-netbsd
 137         BuildPlatform=i386-unknown-netbsd
 138         HostPlatform_CPP='i386_unknown_netbsd'
 139         HostArch_CPP='i386'
 140         HostVendor_CPP='unknown'
 141         HostOS_CPP='netbsd'
 142         ;;
 143 i[[3456]]86-*-solaris2*)
 144         HostPlatform=i386-unknown-solaris2 # hack again
 145         TargetPlatform=i386-unknown-solaris2
 146         BuildPlatform=i386-unknown-solaris2
 147         HostPlatform_CPP='i386_unknown_solaris2'
 148         HostArch_CPP='i386'
 149         HostVendor_CPP='unknown'
 150         HostOS_CPP='solaris2'
 151         ;;
 152 i[[3456]]86-*-cygwin32*)
 153         HostPlatform=i386-unknown-cygwin32 # hack again
 154         TargetPlatform=i386-unknown-cygwin32
 155         BuildPlatform=i386-unknown-cygwin32
 156         HostPlatform_CPP='i386_unknown_cygwin32'
 157         HostArch_CPP='i386'
 158         HostVendor_CPP='unknown'
 159         HostOS_CPP='cygwin32'
 160         exeext='.exe'
 161         ;;
 162 i[[3456]]86-*-mingw32*)
 163         HostPlatform=i386-unknown-mingw32 # hack again
 164         TargetPlatform=i386-unknown-mingw32
 165         BuildPlatform=i386-unknown-mingw32
 166         HostPlatform_CPP='i386_unknown_mingw32'
 167         HostArch_CPP='i386'
 168         HostVendor_CPP='unknown'
 169         HostOS_CPP='mingw32'
 170         exeext='.exe'
 171         # We assume you're using mingw32 via the gcc that comes
 172         # with cygwin, and not the native port, so let's augment
 173         # the gcc command-line used here with -mno-cygwin to
 174         # arrange for good things to happen.
 175         CFLAGS="-mno-cygwin $CFLAGS"
 176         ;;
 177 m68k-next-nextstep2)
 178         HostPlatform_CPP='m68k_next_nextstep2'
 179         HostArch_CPP='m68k'
 180         HostVendor_CPP='next'
 181         HostOS_CPP='nextstep2'
 182         ;;
 183 m68k-next-nextstep3)
 184         HostPlatform_CPP='m68k_next_nextstep3'
 185         HostArch_CPP='m68k'
 186         HostVendor_CPP='next'
 187         HostOS_CPP='nextstep3'
 188         ;;
 189 i[[3456]]86-next-nextstep3)
 190         HostPlatform=i386-next-nextstep3 # hack again
 191         TargetPlatform=i386-next-nextstep3
 192         BuildPlatform=i386-next-nextstep3
 193         HostPlatform_CPP='i386_next_nextstep3'
 194         HostArch_CPP='i386'
 195         HostVendor_CPP='next'
 196         HostOS_CPP='nextstep3'
 197         ;;
 198 m68k-sun-sunos4*)
 199         HostPlatform=m68k-sun-sunos4
 200         TargetPlatform=m68k-sun-sunos4 #hack
 201         BuildPlatform=m68k-sun-sunos4 #hack
 202         HostPlatform_CPP='m68k_sun_sunos4'
 203         HostArch_CPP='m68k'
 204         HostVendor_CPP='sun'
 205         HostOS_CPP='sunos4'
 206         ;;
 207 mips-dec-ultrix*)
 208         HostPlatform_CPP='mips_dec_ultrix'
 209         HostArch_CPP='mipsel'   # NB a little different
 210         HostVendor_CPP='dec'
 211         HostOS_CPP='ultrix'
 212         ;;
 213 mips-sgi-irix*)
 214         HostPlatform=mips-sgi-irix
 215         TargetPlatform=mips-sgi-irix #hack
 216         BuildPlatform=mips-sgi-irix #hack
 217         HostPlatform_CPP='mips_sgi_irix'
 218         HostArch_CPP='mipseb'   # NB a little different
 219         HostVendor_CPP='sgi'
 220         HostOS_CPP='irix'
 221         ;;
 222 rs6000-ibm-aix*)
 223         HostPlatform=rs6000-ibm-aix
 224         TargetPlatform=rs6000-ibm-aix #hack
 225         BuildPlatform=rs6000-ibm-aix #hack
 226         HostPlatform_CPP='rs6000_ibm_aix'
 227         HostArch_CPP='rs6000'
 228         HostVendor_CPP='ibm'
 229         HostOS_CPP='aix'
 230         ;;
 231 powerpc-ibm-aix*)
 232         HostPlatform=powerpc-ibm-aix
 233         TargetPlatform=powerpc-ibm-aix #hack
 234         BuildPlatform=powerpc-ibm-aix #hack
 235         HostPlatform_CPP='powerpc_ibm_aix'
 236         HostArch_CPP='powerpc'
 237         HostVendor_CPP='ibm'
 238         HostOS_CPP='aix'
 239         ;;
 240 sparc-sun-sunos4*)
 241         HostPlatform=sparc-sun-sunos4
 242         TargetPlatform=sparc-sun-sunos4 #hack
 243         BuildPlatform=sparc-sun-sunos4 #hack
 244         HostPlatform_CPP='sparc_sun_sunos4'
 245         HostArch_CPP='sparc'
 246         HostVendor_CPP='sun'
 247         HostOS_CPP='sunos4'
 248         ;;
 249 sparc-sun-solaris2*)
 250         HostPlatform=sparc-sun-solaris2
 251         TargetPlatform=sparc-sun-solaris2 #hack
 252         BuildPlatform=sparc-sun-solaris2 #hack
 253         HostPlatform_CPP='sparc_sun_solaris2'
 254         HostArch_CPP='sparc'
 255         HostVendor_CPP='sun'
 256         HostOS_CPP='solaris2'
 257         ;;
 258 *)
 259         echo "Unrecognised platform: $HostPlatform"
 260         exit 1
 261         ;;
 262 esac
 263 echo "Canonicalised to: $HostPlatform"
 264 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 265 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 266
 267 BuildPlatform_CPP=$HostPlatform_CPP
 268 TargetPlatform_CPP=$HostPlatform_CPP
 269 BuildArch_CPP=$HostArch_CPP
 270 TargetArch_CPP=$HostArch_CPP
 271 BuildOS_CPP=$HostOS_CPP
 272 HostOS_Full=$host_os
 273 TargetOS_CPP=$HostOS_CPP
 274 BuildVendor_CPP=$HostVendor_CPP
 275 TargetVendor_CPP=$HostVendor_CPP
 276
 277 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 278 dnl AC_SUBST(BuildPlatform)
 279
 280 AC_SUBST(HostPlatform)
 281 AC_SUBST(TargetPlatform)
 282 AC_SUBST(HostPlatform_CPP)
 283 dnl AC_SUBST(BuildPlatform_CPP)
 284 dnl AC_SUBST(TargetPlatform_CPP)
 285
 286 AC_SUBST(HostArch_CPP)
 287 dnl AC_SUBST(BuildArch_CPP)
 288 dnl AC_SUBST(TargetArch_CPP)
 289
 290 AC_SUBST(HostOS_CPP)
 291 AC_SUBST(HostOS_Full)
 292 dnl AC_SUBST(BuildOS_CPP)
 293 dnl AC_SUBST(TargetOS_CPP)
 294
 295 AC_SUBST(HostVendor_CPP)
 296 dnl AC_SUBST(BuildVendor_CPP)
 297 dnl AC_SUBST(TargetVendor_CPP)
 298
 299 AC_SUBST(exeext)
 300
 301 dnl --------------------------------------------------------------
 302 dnl * Project specific configuration options
 303 dnl --------------------------------------------------------------
 304 dnl What follows is a bunch of options that can either be configured
 305 dnl through command line options to the configure script or by
 306 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 307 dnl use either is considered a Feature.
 308
 309 dnl ** What command to use to compile compiler sources ?
 310 dnl --------------------------------------------------------------
 311 AC_ARG_WITH(ghc-hc,
 312 [  --with-ghc-hc=<haskell compiler>
 313         Use a command different from 'ghc-2.10' to compile up the GHC compiler sources.
 314          (no claims currently made that this will work with a compiler other than a
 315           recent version of GHC, but you could always try...)
 316 ],
 317 [WithGhcHc="$withval"],
 318 [WithGhcHc="ghc"]
 319 )
 320 AC_SUBST(WithGhcHc)
 321
 322 dnl ** Which gcc to use?
 323 dnl --------------------------------------------------------------
 324 AC_ARG_WITH(gcc,
 325 [  --with-gcc=<gcc command>
 326         Use a different command instead of 'gcc' for the GNU C compiler.
 327 ],
 328 [WhatGccIsCalled="$withval"],
 329 [WhatGccIsCalled="gcc"]
 330 )
 331 AC_SUBST(WhatGccIsCalled)
 332
 333 dnl ** Booting from .hc files?
 334 dnl --------------------------------------------------------------
 335 AC_ARG_ENABLE(hc-boot,
 336 [  --enable-hc-boot
 337         Boot the Glasgow Haskell Compiler from intermediate .hc files.
 338         (This option is mostly of interest to porters.)
 339 ],
 340 [BootingFromHc=YES],
 341 [BootingFromHc=NO]
 342 )
 343 AC_SUBST(BootingFromHc)
 344
 345
 346 dnl ** Enable the construction of Win32 DLLs?
 347 dnl --------------------------------------------------------------
 348 AC_ARG_ENABLE(win32-dlls,
 349 [  --enable-win32-dlls
 350         If on a Win32 platform running mingw32/cygwin, enable the
 351         construction of DLLs containing ghc-compiled code.
 352 ],
 353 [
 354 case $HostOS_CPP in
 355 cygwin32) ;;
 356 mingw32)  ;;
 357 *)    echo "Unrecognised win32 platform: $HostPlatform"
 358       exit 1
 359       ;;
 360 esac
 361 EnableWin32DLLs=YES
 362 ],
 363 [EnableWin32DLLs=NO]
 364 )
 365 AC_SUBST(EnableWin32DLLs)
 366 if test x"$EnableWin32DLLs" = "xYES" ; then
 367  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 368 fi
 369
 370 dnl --------------------------------------------------------------
 371 dnl End of configure script option section
 372 dnl --------------------------------------------------------------
 373
 374
 375 dnl --------------------------------------------------------------
 376 dnl * General configuration checks
 377 dnl --------------------------------------------------------------
 378
 379 dnl ** does #! work?
 380 AC_SYS_INTERPRETER()
 381
 382 dnl ** look for `perl', but watch out for version 4.035
 383 AC_PATH_PROG(PerlCmd,perl)
 384 if test -z "$PerlCmd"; then
 385    echo "You must install perl before you can continue"
 386    echo "Perhaps it is already installed, but not in your PATH?"
 387    exit 1
 388 else
 389 FPTOOLS_CHECK_PERL_VERSION
 390 fi
 391
 392 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 393 FPTOOLS_SHEBANG_PERL
 394
 395
 396 dnl ** look for GCC and find out which version
 397 dnl     Figure out which C compiler to use.  Gcc is preferred.
 398 dnl     If gcc, make sure it's at least 2.1
 399 dnl
 400 AC_PROG_CC
 401 FPTOOLS_HAVE_GCC
 402
 403 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 404 AC_PROG_CPP
 405
 406 dnl ** figure out how to do context diffs
 407 FPTOOLS_PROG_DIFF
 408
 409
 410 dnl ** look for a decent parser generator (bison preferred)
 411 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
 412 dnl  on the suitability of the 'yacc' returned.)
 413 FPTOOLS_PROG_YACCY
 414
 415 dnl ** Find lex command (lex or flex) and library (-ll or -lfl)
 416 dnl     ( not that we care about the latter, see mk/config.mk.in )
 417 AC_PROG_LEX
 418
 419
 420 dnl ** figure out how to do a BSD-ish install
 421 AC_PROG_INSTALL
 422
 423 dnl If you can run configure, you certainly have /bin/sh
 424 AC_DEFINE(HAVE_BIN_SH)
 425
 426 dnl ** how to invoke `ar' and `ranlib'
 427 FPTOOLS_PROG_AR_AND_RANLIB
 428
 429
 430 dnl ** Check to see whether ln -s works
 431 AC_PROG_LN_S
 432
 433
 434 dnl ** Find the path to sed
 435 AC_PATH_PROG(SedCmd,sed)
 436
 437
 438 dnl ** check for time command
 439 AC_PATH_PROG(TimeCmd,time)
 440
 441
 442 dnl ** check for tar
 443 dnl   if GNU tar is named gtar, look for it first.
 444 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 445
 446 dnl ** check for gzip/compress
 447 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 448
 449 compress_nm=`basename $CompressCmd`
 450 if test x"$compress_nm" = xgzip; then
 451   CompressCmd="$CompressCmd -d"
 452   CompressSuffix="gz"
 453 else
 454   CompressSuffix="Z"
 455 fi
 456 AC_SUBST(CompressCmd)
 457 AC_SUBST(CompressSuffix)
 458
 459 dnl ** check for installed happy binary + version
 460 dnl    (don't do it if we're booting from .hc files though.)
 461 if (test "$BootingFromHc" = "NO"); then
 462 FPTOOLS_HAPPY
 463 fi;
 464
 465 dnl --------------------------------------------------
 466 dnl ### program checking section ends here ###
 467 dnl --------------------------------------------------
 468
 469 dnl --------------------------------------------------
 470 dnl * Platform header file and syscall feature tests
 471 dnl ### checking the state of the local header files and syscalls ###
 472
 473 dnl ** check for full ANSI header (.h) files
 474 AC_HEADER_STDC
 475
 476 dnl ** check for specific header (.h) files that we are interested in
 477 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 bfd.h winsock.h)
 478
 479 dnl ** check for DOS include files
 480 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 481
 482 dnl ** check for Windows include files
 483 AC_CHECK_HEADERS(windows.h)
 484
 485 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 486 AC_HEADER_TIME
 487
 488 dnl dynamic loading include files
 489 AC_CHECK_HEADERS(dlfcn.h dl.h)
 490
 491 dnl ** check for farcalloc (in bcc)
 492 AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
 493
 494 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 495 AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
 496
 497 dnl ** how do we get a timezone name, and UTC offset ?
 498 AC_STRUCT_TIMEZONE
 499
 500 dnl ** what's the type of timezone?
 501 FPTOOLS_HAVE_TIMEZONE
 502 FPTOOLS_TYPE_TIMEZONE
 503
 504 dnl ** do we have altzone?
 505 FPTOOLS_ALTZONE
 506
 507 dnl ** does struct stat contain st_blksize?
 508 AC_STRUCT_ST_BLKSIZE
 509
 510 dnl ** what are the sizes of various types
 511 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 512 AC_CHECK_SIZEOF(unsigned int,4)
 513 AC_CHECK_SIZEOF(float,       4)
 514 AC_CHECK_SIZEOF(double,      8)
 515 AC_CHECK_SIZEOF(long,        4)
 516 AC_CHECK_SIZEOF(void *,      4)
 517
 518 dnl ** what are alignment constraints on various types
 519 FPTOOLS_CHECK_ALIGNMENT(unsigned int) dnl redundant but harmless
 520 FPTOOLS_CHECK_ALIGNMENT(long)
 521 FPTOOLS_CHECK_ALIGNMENT(float)
 522 FPTOOLS_CHECK_ALIGNMENT(double)
 523
 524 dnl ** do we have long longs?
 525 FPTOOLS_C_LONG_LONG
 526
 527 dnl ** can we open files in binary mode?
 528 FPTOOLS_O_BINARY
 529
 530 dnl ** check for GetModuleFileName and WinExec (windows only)
 531 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 532 dnl Doesn't work because the linker can't see the functions if
 533 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 534
 535 FPTOOLS_TRY_LINK_NOWARN(,[
 536 #if HAVE_WINDOWS_H
 537 #include <windows.h>
 538 #endif
 539 main() {
 540   WinExec("",0);
 541   exit(0);
 542 }
 543 ],
 544 [have_winexec=1],
 545 [have_winexec=0])
 546 if test "$have_winexec" = "1"; then
 547 AC_DEFINE(HAVE_WINEXEC)
 548 fi
 549
 550 FPTOOLS_TRY_LINK_NOWARN(,[
 551 #if HAVE_WINDOWS_H
 552 #include <windows.h>
 553 #endif
 554 main() {
 555   char* dir;
 556   GetModuleFileName((HMODULE)0,dir,0);
 557   exit(0);
 558 }
 559 ],
 560 [have_getmodulefilename=1],
 561 [have_getmodulefilename=0])
 562 if test "$have_getmodulefilename" = "1"; then
 563 AC_DEFINE(HAVE_GETMODULEFILENAME)
 564 fi
 565
 566 dnl ** check return type of signal handlers
 567 dnl Foo: assumes we can use prototypes.
 568 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 569 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 570 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 571 dnl #include <signal.h>
 572 dnl #ifdef signal
 573 dnl #undef signal
 574 dnl #endif
 575 dnl void (*signal (int, void (*)(int)))(int);
 576 dnl ],
 577 dnl [int i;],
 578 dnl ac_cv_type_signal_handler=void_int,
 579 dnl ac_cv_type_signal_handler=int_void)])
 580 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 581 dnl AC_DEFINE(VOID_INT_SIGNALS)
 582 dnl fi
 583
 584 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 585 AC_TYPE_SIGNAL
 586 if test "$ac_cv_type_signal" = void; then
 587 AC_DEFINE(VOID_INT_SIGNALS)
 588 fi
 589
 590 dnl ** check for more functions
 591 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 592 AC_CHECK_FUNCS(strcmp)
 593 AC_CHECK_FUNCS(realpath _fullpath)
 594 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 595 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 596 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 597 AC_CHECK_FUNCS(snprintf  _snprintf )
 598 AC_CHECK_FUNCS(popen     _popen )
 599 AC_CHECK_FUNCS(pclose    _pclose )
 600
 601
 602 dnl ** check for specific library functions that we are interested in
 603 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat symlink sysconf timelocal times vadvise vfork)
 604
 605 dnl ** check whether this machine has gmp2 installed
 606 AC_CHECK_LIB(gmp,  mpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 607   AC_CHECK_LIB(gmp2, mpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp2,
 608     HaveLibGmp=No; LibGmp=not-installed))
 609 AC_SUBST(HaveLibGmp)
 610 AC_SUBST(LibGmp)
 611
 612 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 613 dnl    the order of these tests matters: bfd needs liberty
 614 AC_CHECK_LIB(iberty, xmalloc)
 615 AC_CHECK_LIB(bfd,    bfd_init)
 616
 617 dnl ################################################################
 618 dnl Check for libraries
 619 dnl ################################################################
 620
 621 FPTOOLS_CHECK_LIB_NOWARN(dl, dlopen)
 622 FPTOOLS_CHECK_LIB_NOWARN(dld, shl_load)
 623 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
 624
 625 dnl --------------------------------------------------
 626 dnl * Miscellaneous feature tests
 627 dnl --------------------------------------------------
 628
 629 dnl ** can we get alloca?
 630 AC_FUNC_ALLOCA
 631
 632 dnl ** determine whether or not const works
 633 AC_C_CONST
 634
 635 dnl ** determine whether ANSI-function prototypes work?
 636 AC_C_PROTOTYPES
 637
 638 dnl ** are we big endian?
 639 AC_C_BIGENDIAN
 640 # Allay users' general fear of warnings of any kind.
 641 errprint((fptools configure script wizard sez: "don't worry, the above warning is harmless (to us.)")
 642 )
 643
 644 dnl ** determine the return type of signal()
 645 AC_TYPE_SIGNAL
 646
 647 dnl ** check for leading underscores in symbol names
 648 FPTOOLS_UNDERSCORE
 649
 650 dnl ** how is the end of text section signalled?
 651 FPTOOLS_END_TEXT_SECTION
 652
 653 dnl ** how is the end of data section signalled?
 654 FPTOOLS_END_DATA_SECTION
 655
 656 dnl ** code before data?
 657 FPTOOLS_CODE_BEFORE_DATA
 658
 659 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
 660
 661 echo ''
 662 echo '************************************************'
 663 echo '*** NOW DO: gmake boot followed by gmake all'
 664 echo '***         (where gmake == GNU make)'
 665 echo '************************************************'
 666 exit 0