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         ;;
 172 m68k-next-nextstep2)
 173         HostPlatform_CPP='m68k_next_nextstep2'
 174         HostArch_CPP='m68k'
 175         HostVendor_CPP='next'
 176         HostOS_CPP='nextstep2'
 177         ;;
 178 m68k-next-nextstep3)
 179         HostPlatform_CPP='m68k_next_nextstep3'
 180         HostArch_CPP='m68k'
 181         HostVendor_CPP='next'
 182         HostOS_CPP='nextstep3'
 183         ;;
 184 i[[3456]]86-next-nextstep3)
 185         HostPlatform=i386-next-nextstep3 # hack again
 186         TargetPlatform=i386-next-nextstep3
 187         BuildPlatform=i386-next-nextstep3
 188         HostPlatform_CPP='i386_next_nextstep3'
 189         HostArch_CPP='i386'
 190         HostVendor_CPP='next'
 191         HostOS_CPP='nextstep3'
 192         ;;
 193 m68k-sun-sunos4*)
 194         HostPlatform=m68k-sun-sunos4
 195         TargetPlatform=m68k-sun-sunos4 #hack
 196         BuildPlatform=m68k-sun-sunos4 #hack
 197         HostPlatform_CPP='m68k_sun_sunos4'
 198         HostArch_CPP='m68k'
 199         HostVendor_CPP='sun'
 200         HostOS_CPP='sunos4'
 201         ;;
 202 mips-dec-ultrix*)
 203         HostPlatform_CPP='mips_dec_ultrix'
 204         HostArch_CPP='mipsel'   # NB a little different
 205         HostVendor_CPP='dec'
 206         HostOS_CPP='ultrix'
 207         ;;
 208 mips-sgi-irix*)
 209         HostPlatform=mips-sgi-irix
 210         TargetPlatform=mips-sgi-irix #hack
 211         BuildPlatform=mips-sgi-irix #hack
 212         HostPlatform_CPP='mips_sgi_irix'
 213         HostArch_CPP='mipseb'   # NB a little different
 214         HostVendor_CPP='sgi'
 215         HostOS_CPP='irix'
 216         ;;
 217 rs6000-ibm-aix*)
 218         HostPlatform=rs6000-ibm-aix
 219         TargetPlatform=rs6000-ibm-aix #hack
 220         BuildPlatform=rs6000-ibm-aix #hack
 221         HostPlatform_CPP='rs6000_ibm_aix'
 222         HostArch_CPP='rs6000'
 223         HostVendor_CPP='ibm'
 224         HostOS_CPP='aix'
 225         ;;
 226 powerpc-ibm-aix*)
 227         HostPlatform=powerpc-ibm-aix
 228         TargetPlatform=powerpc-ibm-aix #hack
 229         BuildPlatform=powerpc-ibm-aix #hack
 230         HostPlatform_CPP='powerpc_ibm_aix'
 231         HostArch_CPP='powerpc'
 232         HostVendor_CPP='ibm'
 233         HostOS_CPP='aix'
 234         ;;
 235 sparc-sun-sunos4*)
 236         HostPlatform=sparc-sun-sunos4
 237         TargetPlatform=sparc-sun-sunos4 #hack
 238         BuildPlatform=sparc-sun-sunos4 #hack
 239         HostPlatform_CPP='sparc_sun_sunos4'
 240         HostArch_CPP='sparc'
 241         HostVendor_CPP='sun'
 242         HostOS_CPP='sunos4'
 243         ;;
 244 sparc-sun-solaris2*)
 245         HostPlatform=sparc-sun-solaris2
 246         TargetPlatform=sparc-sun-solaris2 #hack
 247         BuildPlatform=sparc-sun-solaris2 #hack
 248         HostPlatform_CPP='sparc_sun_solaris2'
 249         HostArch_CPP='sparc'
 250         HostVendor_CPP='sun'
 251         HostOS_CPP='solaris2'
 252         ;;
 253 *)
 254         echo "Unrecognised platform: $HostPlatform"
 255         exit 1
 256         ;;
 257 esac
 258 echo "Canonicalised to: $HostPlatform"
 259 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 260 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 261
 262 BuildPlatform_CPP=$HostPlatform_CPP
 263 TargetPlatform_CPP=$HostPlatform_CPP
 264 BuildArch_CPP=$HostArch_CPP
 265 TargetArch_CPP=$HostArch_CPP
 266 BuildOS_CPP=$HostOS_CPP
 267 HostOS_Full=$host_os
 268 TargetOS_CPP=$HostOS_CPP
 269 BuildVendor_CPP=$HostVendor_CPP
 270 TargetVendor_CPP=$HostVendor_CPP
 271
 272 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 273 dnl AC_SUBST(BuildPlatform)
 274
 275 AC_SUBST(HostPlatform)
 276 AC_SUBST(TargetPlatform)
 277 AC_SUBST(HostPlatform_CPP)
 278 dnl AC_SUBST(BuildPlatform_CPP)
 279 dnl AC_SUBST(TargetPlatform_CPP)
 280
 281 AC_SUBST(HostArch_CPP)
 282 dnl AC_SUBST(BuildArch_CPP)
 283 dnl AC_SUBST(TargetArch_CPP)
 284
 285 AC_SUBST(HostOS_CPP)
 286 AC_SUBST(HostOS_Full)
 287 dnl AC_SUBST(BuildOS_CPP)
 288 dnl AC_SUBST(TargetOS_CPP)
 289
 290 AC_SUBST(HostVendor_CPP)
 291 dnl AC_SUBST(BuildVendor_CPP)
 292 dnl AC_SUBST(TargetVendor_CPP)
 293
 294 AC_SUBST(exeext)
 295
 296 dnl --------------------------------------------------------------
 297 dnl * Project specific configuration options
 298 dnl --------------------------------------------------------------
 299 dnl What follows is a bunch of options that can either be configured
 300 dnl through command line options to the configure script or by
 301 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 302 dnl use either is considered a Feature.
 303
 304 dnl ** What command to use to compile compiler sources ?
 305 dnl --------------------------------------------------------------
 306 AC_ARG_WITH(ghc-hc,
 307 [  --with-ghc-hc=<haskell compiler>
 308         Use a command different from 'ghc-2.10' to compile up the GHC compiler sources.
 309          (no claims currently made that this will work with a compiler other than a
 310           recent version of GHC, but you could always try...)
 311 ],
 312 [WithGhcHc="$withval"],
 313 [WithGhcHc="ghc"]
 314 )
 315 AC_SUBST(WithGhcHc)
 316
 317 dnl ** Which gcc to use?
 318 dnl --------------------------------------------------------------
 319 AC_ARG_WITH(gcc,
 320 [  --with-gcc=<gcc command>
 321         Use a different command instead of 'gcc' for the GNU C compiler.
 322 ],
 323 [WhatGccIsCalled="$withval"],
 324 [WhatGccIsCalled="gcc"]
 325 )
 326 AC_SUBST(WhatGccIsCalled)
 327
 328 dnl ** Booting from .hc files?
 329 dnl --------------------------------------------------------------
 330 AC_ARG_ENABLE(hc-boot,
 331 [  --enable-hc-boot
 332         Boot the Glasgow Haskell Compiler from intermediate .hc files.
 333         (This option is mostly of interest to porters.)
 334 ],
 335 [BootingFromHc=YES],
 336 [BootingFromHc=NO]
 337 )
 338 AC_SUBST(BootingFromHc)
 339
 340
 341 dnl --------------------------------------------------------------
 342 dnl End of configure script option section
 343 dnl --------------------------------------------------------------
 344
 345
 346 dnl --------------------------------------------------------------
 347 dnl * General configuration checks
 348 dnl --------------------------------------------------------------
 349
 350 dnl ** does #! work?
 351 AC_SYS_INTERPRETER()
 352
 353 dnl ** look for `perl', but watch out for version 4.035
 354 AC_PATH_PROG(PerlCmd,perl)
 355 if test -z "$PerlCmd"; then
 356    echo "You must install perl before you can continue"
 357    echo "Perhaps it is already installed, but not in your PATH?"
 358    exit 1
 359 else
 360 FPTOOLS_CHECK_PERL_VERSION
 361 fi
 362
 363 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 364 FPTOOLS_SHEBANG_PERL
 365
 366
 367 dnl ** look for GCC and find out which version
 368 dnl     Figure out which C compiler to use.  Gcc is preferred.
 369 dnl     If gcc, make sure it's at least 2.1
 370 dnl
 371 AC_PROG_CC
 372 FPTOOLS_HAVE_GCC
 373
 374 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 375 AC_PROG_CPP
 376 FPTOOLS_PROG_GNUCPP
 377
 378 dnl ** figure out how to do context diffs
 379 FPTOOLS_PROG_DIFF
 380
 381
 382 dnl ** look for a decent parser generator (bison preferred)
 383 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
 384 dnl  on the suitability of the 'yacc' returned.)
 385 FPTOOLS_PROG_YACCY
 386
 387 dnl ** Find lex command (lex or flex) and library (-ll or -lfl)
 388 dnl     ( not that we care about the latter, see mk/config.mk.in )
 389 AC_PROG_LEX
 390
 391
 392 dnl ** figure out how to do a BSD-ish install
 393 AC_PROG_INSTALL
 394
 395 dnl If you can run configure, you certainly have /bin/sh
 396 AC_DEFINE(HAVE_BIN_SH)
 397
 398 dnl ** how to invoke `ar' and `ranlib'
 399 FPTOOLS_PROG_AR_AND_RANLIB
 400
 401
 402 dnl ** Check to see whether ln -s works
 403 AC_PROG_LN_S
 404
 405
 406 dnl ** Find the path to sed
 407 AC_PATH_PROG(SedCmd,sed)
 408
 409
 410 dnl ** check for time command
 411 AC_PATH_PROG(TimeCmd,time)
 412
 413
 414 dnl ** check for tar
 415 dnl   if GNU tar is named gtar, look for it first.
 416 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 417
 418 dnl ** check for gzip/compress
 419 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 420
 421 compress_nm=`basename $CompressCmd`
 422 if test x"$compress_nm" = xgzip; then
 423   CompressCmd="$CompressCmd -d"
 424   CompressSuffix="gz"
 425 else
 426   CompressSuffix="Z"
 427 fi
 428 AC_SUBST(CompressCmd)
 429 AC_SUBST(CompressSuffix)
 430
 431 dnl ** check for installed happy binary + version
 432 dnl    (don't do it if we're booting from .hc files though.)
 433 if (test "$BootingFromHc" = "NO"); then
 434 FPTOOLS_HAPPY
 435 fi;
 436
 437 dnl --------------------------------------------------
 438 dnl ### program checking section ends here ###
 439 dnl --------------------------------------------------
 440
 441 dnl --------------------------------------------------
 442 dnl * Platform header file and syscall feature tests
 443 dnl ### checking the state of the local header files and syscalls ###
 444
 445 dnl ** check for full ANSI header (.h) files
 446 AC_HEADER_STDC
 447
 448 dnl ** check for specific header (.h) files that we are interested in
 449 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)
 450
 451 dnl ** check for DOS include files
 452 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 453
 454 dnl ** check for Windows include files
 455 AC_CHECK_HEADERS(windows.h)
 456
 457 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 458 AC_HEADER_TIME
 459
 460 dnl dynamic loading include files
 461 AC_CHECK_HEADERS(dlfcn.h dl.h)
 462
 463 dnl ** check for farcalloc (in bcc)
 464 AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
 465
 466 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 467 AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
 468
 469 dnl ** how do we get a timezone name, and UTC offset ?
 470 AC_STRUCT_TIMEZONE
 471
 472 dnl ** what's the type of timezone?
 473 FPTOOLS_TYPE_TIMEZONE
 474
 475 dnl ** do we have altzone?
 476 FPTOOLS_ALTZONE
 477
 478 dnl ** does struct stat contain st_blksize?
 479 AC_STRUCT_ST_BLKSIZE
 480
 481 dnl ** what are the sizes of various types
 482 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 483 AC_CHECK_SIZEOF(unsigned int,4)
 484 AC_CHECK_SIZEOF(float,       4)
 485 AC_CHECK_SIZEOF(double,      8)
 486 AC_CHECK_SIZEOF(long,        4)
 487 AC_CHECK_SIZEOF(void *,      4)
 488
 489 dnl ** what are alignment constraints on various types
 490 FPTOOLS_CHECK_ALIGNMENT(unsigned int) dnl redundant but harmless
 491 FPTOOLS_CHECK_ALIGNMENT(long)
 492 FPTOOLS_CHECK_ALIGNMENT(float)
 493 FPTOOLS_CHECK_ALIGNMENT(double)
 494
 495 dnl ** do we have long longs?
 496 FPTOOLS_C_LONG_LONG
 497
 498 dnl ** can we open files in binary mode?
 499 FPTOOLS_O_BINARY
 500
 501 dnl ** check for GetModuleFileName and WinExec (windows only)
 502 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 503 dnl Doesn't work because the linker can't see the functions if
 504 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 505
 506 FPTOOLS_TRY_LINK_NOWARN(,[
 507 #if HAVE_WINDOWS_H
 508 #include <windows.h>
 509 #endif
 510 main() {
 511   WinExec("",0);
 512   exit(0);
 513 }
 514 ],
 515 [have_winexec=1],
 516 [have_winexec=0])
 517 if test "$have_winexec" = "1"; then
 518 AC_DEFINE(HAVE_WINEXEC)
 519 fi
 520
 521 FPTOOLS_TRY_LINK_NOWARN(,[
 522 #if HAVE_WINDOWS_H
 523 #include <windows.h>
 524 #endif
 525 main() {
 526   char* dir;
 527   GetModuleFileName((HMODULE)0,dir,0);
 528   exit(0);
 529 }
 530 ],
 531 [have_getmodulefilename=1],
 532 [have_getmodulefilename=0])
 533 if test "$have_getmodulefilename" = "1"; then
 534 AC_DEFINE(HAVE_GETMODULEFILENAME)
 535 fi
 536
 537 dnl ** check return type of signal handlers
 538 dnl Foo: assumes we can use prototypes.
 539 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 540 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 541 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 542 dnl #include <signal.h>
 543 dnl #ifdef signal
 544 dnl #undef signal
 545 dnl #endif
 546 dnl void (*signal (int, void (*)(int)))(int);
 547 dnl ],
 548 dnl [int i;],
 549 dnl ac_cv_type_signal_handler=void_int,
 550 dnl ac_cv_type_signal_handler=int_void)])
 551 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 552 dnl AC_DEFINE(VOID_INT_SIGNALS)
 553 dnl fi
 554
 555 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 556 AC_TYPE_SIGNAL
 557 if test "$ac_cv_type_signal" = void; then
 558 AC_DEFINE(VOID_INT_SIGNALS)
 559 fi
 560
 561 dnl ** check for more functions
 562 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 563 AC_CHECK_FUNCS(strcmp)
 564 AC_CHECK_FUNCS(realpath _fullpath)
 565 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 566 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 567 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 568 AC_CHECK_FUNCS(snprintf  _snprintf )
 569 AC_CHECK_FUNCS(popen     _popen )
 570 AC_CHECK_FUNCS(pclose    _pclose )
 571
 572
 573 dnl ** check for specific library functions that we are interested in
 574 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat symlink sysconf timelocal times vadvise vfork)
 575
 576 dnl ** check whether this machine has gmp2 installed
 577 AC_CHECK_LIB(gmp,  mpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 578   AC_CHECK_LIB(gmp2, mpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp2,
 579     HaveLibGmp=No; LibGmp=not-installed))
 580 AC_SUBST(HaveLibGmp)
 581 AC_SUBST(LibGmp)
 582
 583 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 584 dnl    the order of these tests matters: bfd needs liberty
 585 AC_CHECK_LIB(iberty, xmalloc)
 586 AC_CHECK_LIB(bfd,    bfd_init)
 587
 588 dnl ################################################################
 589 dnl Check for libraries
 590 dnl ################################################################
 591
 592 FPTOOLS_CHECK_LIB_NOWARN(dl, dlopen)
 593 FPTOOLS_CHECK_LIB_NOWARN(dld, shl_load)
 594 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
 595
 596 dnl --------------------------------------------------
 597 dnl * Miscellaneous feature tests
 598 dnl --------------------------------------------------
 599
 600 dnl ** can we get alloca?
 601 AC_FUNC_ALLOCA
 602
 603 dnl ** determine whether or not const works
 604 AC_C_CONST
 605
 606 dnl ** determine whether ANSI-function prototypes work?
 607 AC_C_PROTOTYPES
 608
 609 dnl ** are we big endian?
 610 AC_C_BIGENDIAN
 611 # Allay users' general fear of warnings of any kind.
 612 errprint((fptools configure script wizard sez: "don't worry, the above warning is harmless (to us.)")
 613 )
 614
 615 dnl ** determine the return type of signal()
 616 AC_TYPE_SIGNAL
 617
 618 dnl ** check for leading underscores in symbol names
 619 FPTOOLS_UNDERSCORE
 620
 621 dnl ** how is the end of text section signalled?
 622 FPTOOLS_END_TEXT_SECTION
 623
 624 dnl ** how is the end of data section signalled?
 625 FPTOOLS_END_DATA_SECTION
 626
 627 dnl ** code before data?
 628 FPTOOLS_CODE_BEFORE_DATA
 629
 630 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
 631
 632 echo ''
 633 echo '************************************************'
 634 echo '*** NOW DO: gmake boot followed by gmake all'
 635 echo '***         (where gmake == GNU make)'
 636 echo '************************************************'
 637 exit 0