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 dnl (We probably have to add hslibs/{OpenGL,GLUT} here later...)
  24 AC_CONFIG_SUBDIRS(ghc)
  25
  26 # -------------------------------------------------------------------------
  27 # Prepare to generate the following header files
  28 #
  29 #
  30 AC_CONFIG_HEADER(mk/config.h)
  31
  32 # No, semi-sadly, we don't do `--srcdir'...
  33 if test x"$srcdir" != 'x.' ; then
  34     echo "This configuration does not support the \`--srcdir' option.."
  35     exit 1
  36 fi
  37
  38 #
  39 # Remove common automounter nonsense + convert from UNC to DOS style paths
  40 # (UNC awareness isn't quite there yet for cygwin32-beta18 and consituent tools.)
  41 #
  42 hardtop=`pwd`
  43 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|' | sed 's|^//\(.\)/|\1:/|' `
  44
  45 echo ''
  46 echo "*** The top of your build tree is: $hardtop"
  47 # subst of hardtop is done below after we've computed hardtop_plat.
  48
  49 dnl--------------------------------------------------------------------
  50 dnl * Choose host(/target/build) platform
  51 dnl--------------------------------------------------------------------
  52
  53 dnl Guess host/target/build platform(s) if necessary.
  54 AC_CANONICAL_SYSTEM
  55
  56 # "$host" defaults to "$target"
  57 if test "x$host" = xNONE ; then
  58     host=$target
  59 fi
  60
  61 dnl ** canonicalize platform names
  62 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
  63 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
  64 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
  65
  66 if test x"$TargetPlatform" != x"$HostPlatform" ; then
  67     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
  68     exit 1
  69 fi
  70
  71 exeext=''
  72 #
  73 # The following will be more difficult when we *are* cross-compiling.
  74 # Suitable names to slam in *_CPP are in platform.h.in.
  75 # We also record the architecture, vendor, and operating system (OS)
  76 # separately.
  77 case $HostPlatform in
  78 alpha*-dec-osf[[12]]*)
  79         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
  80         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
  81         BuildPlatform=alpha-dec-osf1  # hack
  82         HostPlatform_CPP='alpha_dec_osf1'
  83         HostArch_CPP='alpha'
  84         HostVendor_CPP='dec'
  85         HostOS_CPP='osf1'
  86         ;;
  87 alpha*-dec-osf[[345]]*)
  88         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
  89         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
  90         BuildPlatform=alpha-dec-osf3  # hack
  91         HostPlatform_CPP='alpha_dec_osf3'
  92         HostArch_CPP='alpha'
  93         HostVendor_CPP='dec'
  94         HostOS_CPP='osf3'
  95         ;;
  96 alpha*-unknown-linux)
  97         HostPlatform=alpha-unknown-linux
  98         TargetPlatform=alpha-unknown-linux
  99         BuildPlatform=alpha-unknown-linux
 100         HostPlatform_CPP='alpha_unknown_linux'
 101         HostArch_CPP='alpha'
 102         HostVendor_CPP='unknown'
 103         HostOS_CPP='linux'
 104         ;;
 105 alpha*-unknown-freebsd*)
 106         HostPlatform=alpha-unknown-freebsd
 107         TargetPlatform=alpha-unknown-freebsd
 108         BuildPlatform=alpha-unknown-freebsd
 109         HostPlatform_CPP='alpha_unknown_freebsd'
 110         HostArch_CPP='alpha'
 111         HostVendor_CPP='unknown'
 112         HostOS_CPP='freebsd'
 113         ;;
 114 hppa1.1-hp-hpux*)
 115         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
 116         TargetPlatform=hppa1.1-hp-hpux
 117         BuildPlatform=hppa1.1-hp-hpux
 118         HostPlatform_CPP='hppa1_1_hp_hpux'
 119         HostArch_CPP='hppa1_1'
 120         HostVendor_CPP='hp'
 121         HostOS_CPP='hpux'
 122         ;;
 123 i[[3456]]86-*-linuxaout*)
 124         HostPlatform=i386-unknown-linuxaout   # hack again
 125         TargetPlatform=i386-unknown-linuxaout
 126         BuildPlatform=i386-unknown-linuxaout
 127         HostPlatform_CPP='i386_unknown_linuxaout'
 128         HostArch_CPP='i386'
 129         HostVendor_CPP='unknown'
 130         HostOS_CPP='linuxaout'
 131         ;;
 132 i[[3456]]86-*-linux*)
 133         HostPlatform=i386-unknown-linux # hack again
 134         TargetPlatform=i386-unknown-linux
 135         BuildPlatform=i386-unknown-linux
 136         HostPlatform_CPP='i386_unknown_linux'
 137         HostArch_CPP='i386'
 138         HostVendor_CPP='unknown'
 139         HostOS_CPP='linux'
 140         ;;
 141 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
 142         HostPlatform=i386-unknown-freebsd # hack again
 143         TargetPlatform=i386-unknown-freebsd
 144         BuildPlatform=i386-unknown-freebsd
 145         HostPlatform_CPP='i386_unknown_freebsd'
 146         HostArch_CPP='i386'
 147         HostVendor_CPP='unknown'
 148         HostOS_CPP='freebsd'
 149         ;;
 150 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
 151         HostPlatform=i386-unknown-freebsd2 # hack again
 152         TargetPlatform=i386-unknown-freebsd2
 153         BuildPlatform=i386-unknown-freebsd2
 154         HostPlatform_CPP='i386_unknown_freebsd2'
 155         HostArch_CPP='i386'
 156         HostVendor_CPP='unknown'
 157         HostOS_CPP='freebsd2'
 158         ;;
 159 i[[3456]]86-*-netbsd*)
 160         HostPlatform=i386-unknown-netbsd # hack again
 161         TargetPlatform=i386-unknown-netbsd
 162         BuildPlatform=i386-unknown-netbsd
 163         HostPlatform_CPP='i386_unknown_netbsd'
 164         HostArch_CPP='i386'
 165         HostVendor_CPP='unknown'
 166         HostOS_CPP='netbsd'
 167         ;;
 168 i[[3456]]86-*-openbsd*)
 169         HostPlatform=i386-unknown-openbsd # hack again
 170         TargetPlatform=i386-unknown-openbsd
 171         BuildPlatform=i386-unknown-openbsd
 172         HostPlatform_CPP='i386_unknown_openbsd'
 173         HostArch_CPP='i386'
 174         HostVendor_CPP='unknown'
 175         HostOS_CPP='openbsd'
 176         ;;
 177 i[[3456]]86-*-solaris2*)
 178         HostPlatform=i386-unknown-solaris2 # hack again
 179         TargetPlatform=i386-unknown-solaris2
 180         BuildPlatform=i386-unknown-solaris2
 181         HostPlatform_CPP='i386_unknown_solaris2'
 182         HostArch_CPP='i386'
 183         HostVendor_CPP='unknown'
 184         HostOS_CPP='solaris2'
 185         ;;
 186 i[[3456]]86-*-cygwin*)
 187         HostPlatform=i386-unknown-cygwin32 # hack again
 188         TargetPlatform=i386-unknown-cygwin32
 189         BuildPlatform=i386-unknown-cygwin32
 190         HostPlatform_CPP='i386_unknown_cygwin32'
 191         HostArch_CPP='i386'
 192         HostVendor_CPP='unknown'
 193         HostOS_CPP='cygwin32'
 194         exeext='.exe'
 195         ;;
 196 i[[3456]]86-*-mingw32*)
 197         HostPlatform=i386-unknown-mingw32 # hack again
 198         TargetPlatform=i386-unknown-mingw32
 199         BuildPlatform=i386-unknown-mingw32
 200         HostPlatform_CPP='i386_unknown_mingw32'
 201         HostArch_CPP='i386'
 202         HostVendor_CPP='unknown'
 203         HostOS_CPP='mingw32'
 204         exeext='.exe'
 205         ;;
 206 ia64-*-linux*)
 207         HostPlatform=ia64-unknown-linux # hack again
 208         TargetPlatform=ia64-unknown-linux
 209         BuildPlatform=ia64-unknown-linux
 210         HostPlatform_CPP='ia64_unknown_linux'
 211         HostArch_CPP='ia64'
 212         HostVendor_CPP='unknown'
 213         HostOS_CPP='linux'
 214         ;;
 215 m68k-next-nextstep2)
 216         HostPlatform_CPP='m68k_next_nextstep2'
 217         HostArch_CPP='m68k'
 218         HostVendor_CPP='next'
 219         HostOS_CPP='nextstep2'
 220         ;;
 221 m68k-next-nextstep3)
 222         HostPlatform_CPP='m68k_next_nextstep3'
 223         HostArch_CPP='m68k'
 224         HostVendor_CPP='next'
 225         HostOS_CPP='nextstep3'
 226         ;;
 227 i[[3456]]86-next-nextstep3)
 228         HostPlatform=i386-next-nextstep3 # hack again
 229         TargetPlatform=i386-next-nextstep3
 230         BuildPlatform=i386-next-nextstep3
 231         HostPlatform_CPP='i386_next_nextstep3'
 232         HostArch_CPP='i386'
 233         HostVendor_CPP='next'
 234         HostOS_CPP='nextstep3'
 235         ;;
 236 m68k-sun-sunos4*)
 237         HostPlatform=m68k-sun-sunos4
 238         TargetPlatform=m68k-sun-sunos4 #hack
 239         BuildPlatform=m68k-sun-sunos4 #hack
 240         HostPlatform_CPP='m68k_sun_sunos4'
 241         HostArch_CPP='m68k'
 242         HostVendor_CPP='sun'
 243         HostOS_CPP='sunos4'
 244         ;;
 245 mips-dec-ultrix*)
 246         HostPlatform_CPP='mips_dec_ultrix'
 247         HostArch_CPP='mipsel'   # NB a little different
 248         HostVendor_CPP='dec'
 249         HostOS_CPP='ultrix'
 250         ;;
 251 mips-sgi-irix*)
 252         HostPlatform=mips-sgi-irix
 253         TargetPlatform=mips-sgi-irix #hack
 254         BuildPlatform=mips-sgi-irix #hack
 255         HostPlatform_CPP='mips_sgi_irix'
 256         HostArch_CPP='mipseb'   # NB a little different
 257         HostVendor_CPP='sgi'
 258         HostOS_CPP='irix'
 259         ;;
 260 rs6000-ibm-aix*)
 261         HostPlatform=rs6000-ibm-aix
 262         TargetPlatform=rs6000-ibm-aix #hack
 263         BuildPlatform=rs6000-ibm-aix #hack
 264         HostPlatform_CPP='rs6000_ibm_aix'
 265         HostArch_CPP='rs6000'
 266         HostVendor_CPP='ibm'
 267         HostOS_CPP='aix'
 268         ;;
 269 powerpc-ibm-aix*)
 270         HostPlatform=powerpc-ibm-aix
 271         TargetPlatform=powerpc-ibm-aix #hack
 272         BuildPlatform=powerpc-ibm-aix #hack
 273         HostPlatform_CPP='powerpc_ibm_aix'
 274         HostArch_CPP='powerpc'
 275         HostVendor_CPP='ibm'
 276         HostOS_CPP='aix'
 277         ;;
 278 powerpc-apple-darwin*)
 279         HostPlatform=powerpc-apple-darwin
 280         TargetPlatform=powerpc-apple-darwin #hack
 281         BuildPlatform=powerpc-apple-darwin #hack
 282         HostPlatform_CPP='powerpc_apple_darwin'
 283         HostArch_CPP='powerpc'
 284         HostVendor_CPP='apple'
 285         HostOS_CPP='darwin'
 286         ;;
 287 sparc-sun-sunos4*)
 288         HostPlatform=sparc-sun-sunos4
 289         TargetPlatform=sparc-sun-sunos4 #hack
 290         BuildPlatform=sparc-sun-sunos4 #hack
 291         HostPlatform_CPP='sparc_sun_sunos4'
 292         HostArch_CPP='sparc'
 293         HostVendor_CPP='sun'
 294         HostOS_CPP='sunos4'
 295         ;;
 296 sparc-sun-solaris2*)
 297         HostPlatform=sparc-sun-solaris2
 298         TargetPlatform=sparc-sun-solaris2 #hack
 299         BuildPlatform=sparc-sun-solaris2 #hack
 300         HostPlatform_CPP='sparc_sun_solaris2'
 301         HostArch_CPP='sparc'
 302         HostVendor_CPP='sun'
 303         HostOS_CPP='solaris2'
 304         ;;
 305 *)
 306         echo "Unrecognised platform: $HostPlatform"
 307         exit 1
 308         ;;
 309 esac
 310 echo "Canonicalised to: $HostPlatform"
 311 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
 312 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
 313
 314 BuildPlatform_CPP=$HostPlatform_CPP
 315 TargetPlatform_CPP=$HostPlatform_CPP
 316 BuildArch_CPP=$HostArch_CPP
 317 TargetArch_CPP=$HostArch_CPP
 318 BuildOS_CPP=$HostOS_CPP
 319 HostOS_Full=$host_os
 320 TargetOS_CPP=$HostOS_CPP
 321 BuildVendor_CPP=$HostVendor_CPP
 322 TargetVendor_CPP=$HostVendor_CPP
 323
 324 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
 325 dnl AC_SUBST(BuildPlatform)
 326
 327 AC_SUBST(HostPlatform)
 328 AC_SUBST(TargetPlatform)
 329 AC_SUBST(HostPlatform_CPP)
 330 dnl AC_SUBST(BuildPlatform_CPP)
 331 dnl AC_SUBST(TargetPlatform_CPP)
 332
 333 AC_SUBST(HostArch_CPP)
 334 dnl AC_SUBST(BuildArch_CPP)
 335 dnl AC_SUBST(TargetArch_CPP)
 336
 337 AC_SUBST(HostOS_CPP)
 338 AC_SUBST(HostOS_Full)
 339 dnl AC_SUBST(BuildOS_CPP)
 340 dnl AC_SUBST(TargetOS_CPP)
 341
 342 AC_SUBST(HostVendor_CPP)
 343 dnl AC_SUBST(BuildVendor_CPP)
 344 dnl AC_SUBST(TargetVendor_CPP)
 345
 346 AC_SUBST(exeext)
 347
 348 #
 349 # The native format for 'hardtop' (i.e., right kind of slashes on a Win32 box).
 350 # (but with b-slashes being escaped).
 351 case $HostPlatform in
 352   i386-unknown-mingw32 | i386-unknown-cygwin32)
 353         # get rid off /cygdrive/ prefix
 354         hardtop=`echo ${hardtop} | sed -e 's%^/cygdrive/\(.\)/%\1:/%' `
 355         hardtop_plat=`cygpath -w ${hardtop} | sed -e 's@\\\\@\\\\\\\\@g' `
 356         ;;
 357   *)
 358         hardtop_plat=${hardtop}
 359         ;;
 360 esac
 361 AC_SUBST(hardtop)
 362 AC_SUBST(hardtop_plat)
 363
 364 dnl --------------------------------------------------------------
 365 dnl * Project specific configuration options
 366 dnl --------------------------------------------------------------
 367 dnl What follows is a bunch of options that can either be configured
 368 dnl through command line options to the configure script or by
 369 dnl supplying defns in the build tree's mk/build.mk. Having the option to
 370 dnl use either is considered a Feature.
 371
 372 dnl ** What command to use to compile compiler sources ?
 373 dnl --------------------------------------------------------------
 374
 375 AC_ARG_WITH(ghc,
 376 [  --with-ghc=<haskell compiler>
 377         Use a command different from 'ghc' to compile GHC-specific Haskell code
 378             (including GHC itself).
 379 ],
 380 [ WithGhc="$withval" ],
 381 [
 382   if test "$GHC" = ""; then
 383     AC_PATH_PROG(GHC,ghc)
 384   fi
 385   WithGhc=$GHC
 386 ]
 387 )
 388 AC_SUBST(WithGhc)
 389
 390 AC_ARG_WITH(hc,
 391 [  --with-hc=<haskell compiler>
 392         Use a command different from 'ghc' to compile generic Haskell code.
 393 ],
 394 [WithHc="$withval"],
 395 [WithHc=$WithGhc]
 396 )
 397 AC_SUBST(WithHc)
 398
 399 if test "$WithGhc" != ""; then
 400   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
 401   AC_SUBST(GhcVersion)dnl
 402   AC_SUBST(GhcMajVersion)dnl
 403   AC_SUBST(GhcMinVersion)dnl
 404   AC_SUBST(GhcPatchLevel)dnl
 405 fi
 406
 407 AC_PATH_PROGS(NHC,nhc nhc98)
 408 AC_PATH_PROG(HBC,hbc)
 409
 410 dnl ** Which gcc to use?
 411 dnl --------------------------------------------------------------
 412 AC_ARG_WITH(gcc,
 413 [  --with-gcc=<gcc command>
 414         Use a different command instead of 'gcc' for the GNU C compiler.
 415 ],
 416 [WhatGccIsCalled="$withval"
 417  CC="$withval"],
 418 [WhatGccIsCalled="gcc"]
 419 )
 420 AC_SUBST(WhatGccIsCalled)
 421
 422 dnl ** Booting from .hc files?
 423 dnl --------------------------------------------------------------
 424 AC_ARG_ENABLE(hc-boot,
 425 [  --enable-hc-boot
 426         Boot the Glasgow Haskell Compiler from intermediate .hc files.
 427         (This option is mostly of interest to porters.)
 428 ],
 429 [BootingFromHc=YES],
 430 [BootingFromHc=NO]
 431 )
 432 AC_SUBST(BootingFromHc)
 433
 434 dnl ** Booting from unregisterised .hc files?
 435 dnl --------------------------------------------------------------
 436 AC_ARG_ENABLE(hc-boot-unregisterised,
 437 [  --enable-hc-boot-unregisterised
 438         With --enable-hc-boot, treat the intermediate .hc files as
 439         unregisterised rather than registerised code.
 440         (This option is mostly of interest to porters.)
 441 ],
 442 [BootingFromUnregisterisedHc=YES],
 443 [BootingFromUnregisterisedHc=NO]
 444 )
 445 AC_SUBST(BootingFromUnregisterisedHc)
 446
 447 if test "$BootingFromHc" = "NO"; then
 448 if test "$BootingFromUnregisterisedHc" = "YES"; then
 449 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 450 fi;
 451 fi;
 452
 453
 454 dnl ** Enable multi-thread friendly RTS?
 455 dnl --------------------------------------------------------------
 456 AC_ARG_ENABLE(threaded-rts,
 457 [  --enable-threaded-rts
 458         Support better interop with OS threads.
 459 ],
 460 [ThreadedRts=YES],
 461 [ThreadedRts=NO]
 462 )
 463 AC_SUBST(ThreadedRts)
 464
 465 dnl ** Enable the construction of Win32 DLLs?
 466 dnl --------------------------------------------------------------
 467 AC_ARG_ENABLE(win32-dlls,
 468 [  --enable-win32-dlls
 469         If on a Win32 platform running mingw32/cygwin, enable the
 470         construction of DLLs containing ghc-compiled code.
 471 ],
 472 [
 473 case $HostOS_CPP in
 474 cygwin32) ;;
 475 mingw32)  ;;
 476 *)    echo "Unrecognised win32 platform: $HostPlatform"
 477       exit 1
 478       ;;
 479 esac
 480 EnableWin32DLLs=YES
 481 ],
 482 [EnableWin32DLLs=NO]
 483 )
 484 AC_SUBST(EnableWin32DLLs)
 485 if test x"$EnableWin32DLLs" = "xYES" ; then
 486  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 487 fi
 488
 489 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
 490 dnl --------------------------------------------------------------
 491 AC_ARG_ENABLE(hopengl,
 492 [  --enable-hopengl
 493         Build HOpenGL, a Haskell binding for OpenGL/GLUT, too.
 494         (This option is only relevant when hslibs are built.)
 495 ],
 496 [GhcLibsWithHOpenGL=YES],
 497 [GhcLibsWithHOpenGL=NO]
 498 )
 499 AC_SUBST(GhcLibsWithHOpenGL)
 500
 501 dnl ** Use a specific version of the GLUT API
 502 dnl --------------------------------------------------------------
 503 AC_ARG_WITH(glut-api,
 504 [  --with-glut-api=<version>
 505         Use a specific version of the GLUT API when building HOpenGL.
 506 ])
 507 test -n "$with_glut_api"  && CPPFLAGS="$CPPFLAGS -DGLUT_API_VERSION=$with_glut_api"
 508
 509
 510 dnl ** Use a specific version of the GLUT API
 511 dnl --------------------------------------------------------------
 512 AC_ARG_WITH(glut-xlib,
 513 [  --with-glut-xlib=<version>
 514         Use a specific version of the GLUT Xlib implementation when building HOpenGL.
 515 ])
 516 test -n "$with_glut_xlib" && CPPFLAGS="$CPPFLAGS -DGLUT_XLIB_IMPLEMENTATION=$with_glut_xlib"
 517
 518
 519
 520
 521 dnl --------------------------------------------------------------
 522 dnl End of configure script option section
 523 dnl --------------------------------------------------------------
 524
 525
 526 dnl --------------------------------------------------------------
 527 dnl * General configuration checks
 528 dnl --------------------------------------------------------------
 529
 530 dnl ** does #! work?
 531 AC_SYS_INTERPRETER()
 532
 533 dnl ** look for `perl', but only in /bin on Windows
 534 case $HostOS_CPP in
 535 cygwin32|mingw32)
 536       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
 537       if test -z "$PerlCmd"; then
 538          echo "You must install the version of Perl shipped with GHC"
 539          echo "(or a compatible one) in /bin."
 540          exit 1
 541       fi
 542    ;;
 543 *)
 544    AC_PATH_PROG(PerlCmd,perl)
 545    if test -z "$PerlCmd"; then
 546       echo "You must install perl before you can continue"
 547       echo "Perhaps it is already installed, but not in your PATH?"
 548       exit 1
 549    else
 550    FPTOOLS_CHECK_PERL_VERSION
 551    fi
 552    ;;
 553 esac
 554
 555 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 556 FPTOOLS_SHEBANG_PERL
 557
 558 dnl ** look for GCC and find out which version
 559 dnl     Figure out which C compiler to use.  Gcc is preferred.
 560 dnl     If gcc, make sure it's at least 2.1
 561 dnl
 562 AC_PROG_CC
 563 FPTOOLS_HAVE_GCC
 564
 565 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 566 AC_PROG_CPP
 567
 568 dnl ** Without optimization some INLINE trickery fails for GHCi
 569 SRC_CC_OPTS="-O"
 570
 571 dnl ** Try to add -mno-cygwin to the C compiler options for mingw32 targets
 572 if test x"$TargetOS_CPP" = x"mingw32"; then
 573   FPTOOLS_CC_FLAG(-mno-cygwin,CC_SUPPORTS_MNO_CYGWIN)
 574   SRC_CC_OPTS="$CC_SUPPORTS_MNO_CYGWIN $SRC_CC_OPTS"
 575   CPPFLAGS="$CC_SUPPORTS_MNO_CYGWIN $CPPFLAGS"
 576 fi
 577 AC_SUBST(SRC_CC_OPTS)
 578
 579 dnl ** figure out how to do context diffs
 580 FPTOOLS_PROG_DIFF
 581
 582 dnl ** Find find command (for Win32's benefit)
 583 FPTOOLS_FIND_FIND
 584
 585 dnl ** look for a decent parser generator (bison preferred)
 586 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
 587 dnl  on the suitability of the 'yacc' returned.)
 588 FPTOOLS_PROG_YACCY
 589
 590 dnl ** Find lex command (lex or flex) - *doesn't* use autoconf's
 591 dnl    AC_PROG_LEX, since it doesn't actually check whether 'lex'
 592 dnl    exists if 'flex' doesn't.
 593 AC_PROG_LEX_STRICT
 594
 595 dnl ** figure out how to do a BSD-ish install
 596 AC_PROG_INSTALL
 597
 598 dnl If you can run configure, you certainly have /bin/sh
 599 AC_DEFINE(HAVE_BIN_SH)
 600
 601 dnl ** how to invoke `ar' and `ranlib'
 602 FPTOOLS_PROG_AR_AND_RANLIB
 603
 604 dnl ** Check to see whether ln -s works
 605 AC_PROG_LN_S
 606
 607
 608 dnl ** Find the path to sed
 609 AC_PATH_PROG(SedCmd,sed)
 610
 611
 612 dnl ** check for time command
 613 AC_PATH_PROG(TimeCmd,time)
 614
 615
 616 dnl ** check for tar
 617 dnl   if GNU tar is named gtar, look for it first.
 618 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 619
 620 dnl ** check for gzip/compress
 621 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 622
 623 dnl ** check for jade/openjade & determine a working catalog
 624 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
 625 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl,
 626                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl glafp-utils/docbook/CATALOG*)
 627 if test -z "$Catalog"; then
 628   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
 629 fi
 630 case $Catalog in
 631    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
 632         Catalog=
 633         ;;
 634    glafp*)
 635         case $HostOS_CPP in
 636            mingw32)
 637               Catalog=`cygpath -w $hardtop/$Catalog`
 638               ;;
 639            *) Catalog=$hardtop/$Catalog
 640               ;;
 641         esac
 642    ;;
 643 esac
 644 AC_SUBST(Catalog)
 645
 646 compress_nm=`basename $CompressCmd`
 647 if test x"$compress_nm" = xgzip; then
 648   CompressCmd="$CompressCmd -d"
 649   CompressSuffix="gz"
 650 else
 651   CompressSuffix="Z"
 652 fi
 653 AC_SUBST(CompressCmd)
 654 AC_SUBST(CompressSuffix)
 655
 656 AC_ARG_ENABLE(src-tree-happy,
 657 [  --enable-src-tree-happy
 658         Build and use source tree (fptools/happy) version of happy.
 659 ],
 660 [UseSrcTreeHappy=YES],
 661 [UseSrcTreeHappy=NO]
 662 )
 663 dnl ** check for installed happy binary + version
 664 dnl    (don't do it if we're booting from .hc files though.)
 665 if test "$BootingFromHc" = "NO"; then
 666 FPTOOLS_HAPPY
 667 fi;
 668
 669 dnl --------------------------------------------------
 670 dnl ### program checking section ends here ###
 671 dnl --------------------------------------------------
 672
 673 dnl --------------------------------------------------
 674 dnl * Platform header file and syscall feature tests
 675 dnl ### checking the state of the local header files and syscalls ###
 676
 677 dnl ** check for full ANSI header (.h) files
 678 AC_HEADER_STDC
 679
 680 dnl ** check for specific header (.h) files that we are interested in
 681 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 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 vfork.h bfd.h winsock.h pthread.h sys/uio.h)
 682
 683 AC_CHECK_HEADER(readline/readline.h, HaveReadlineReadlineH=YES, HaveReadlineReadlineH=NO)
 684 AC_CHECK_HEADER(readline/history.h, HaveReadlineHistoryH=YES, HaveReadlineHistoryH=NO)
 685
 686 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
 687   HaveReadlineHeaders=YES
 688   AC_DEFINE(HAVE_READLINE_HEADERS,1)
 689 else
 690   HaveReadlineHeaders=NO
 691   AC_DEFINE(HAVE_READLINE_HEADERS,0)
 692 fi
 693 AC_SUBST(HaveReadlineHeaders)
 694
 695 dnl ** check for DOS include files
 696 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
 697
 698 dnl ** check for Windows include files
 699 AC_CHECK_HEADERS(windows.h)
 700
 701 dnl ** check for OpenGL include files
 702 AC_CHECK_HEADERS(GL/gl.h)
 703
 704 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
 705 AC_HEADER_TIME
 706
 707 dnl dynamic loading include files
 708 AC_CHECK_HEADERS(dlfcn.h dl.h)
 709
 710 dnl ** check for farcalloc (in bcc)
 711 AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
 712
 713 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
 714 AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
 715
 716 dnl ** check for POSIX regex
 717 HavePosixRegex=NO
 718 AC_CHECK_HEADER(regex.h,AC_CHECK_FUNC(regcomp, HavePosixRegex=YES))
 719 AC_SUBST(HavePosixRegex)
 720
 721 dnl ** how do we get a timezone name, and UTC offset ?
 722 AC_STRUCT_TIMEZONE
 723
 724 dnl ** what's the type of timezone?
 725 FPTOOLS_HAVE_TIMEZONE
 726 FPTOOLS_TYPE_TIMEZONE
 727
 728 dnl ** do we have altzone?
 729 FPTOOLS_ALTZONE
 730
 731 dnl ** does struct stat contain st_blksize?
 732 AC_STRUCT_ST_BLKSIZE
 733
 734 dnl ** do we have long longs?
 735 FPTOOLS_C_LONG_LONG
 736
 737 dnl ** what are the sizes of various types
 738 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 739 AC_CHECK_SIZEOF(char,               1)
 740 AC_CHECK_SIZEOF(double,             8)
 741 AC_CHECK_SIZEOF(float,              4)
 742 AC_CHECK_SIZEOF(int,                4)
 743 AC_CHECK_SIZEOF(long,               4)
 744 if test "$fptools_cv_have_long_long" = yes; then
 745 AC_CHECK_SIZEOF(long long,          8)
 746 fi
 747 AC_CHECK_SIZEOF(short,              2)
 748 AC_CHECK_SIZEOF(unsigned char,      1)
 749 AC_CHECK_SIZEOF(unsigned int,       4)
 750 AC_CHECK_SIZEOF(unsigned long,      4)
 751 if test "$fptools_cv_have_long_long" = yes; then
 752 AC_CHECK_SIZEOF(unsigned long long, 8)
 753 fi
 754 AC_CHECK_SIZEOF(unsigned short,     2)
 755 AC_CHECK_SIZEOF(void *,             4)
 756
 757 dnl ** what are alignment constraints on various types
 758 FPTOOLS_CHECK_ALIGNMENT(char)
 759 FPTOOLS_CHECK_ALIGNMENT(double)
 760 FPTOOLS_CHECK_ALIGNMENT(float)
 761 FPTOOLS_CHECK_ALIGNMENT(int)
 762 FPTOOLS_CHECK_ALIGNMENT(long)
 763 if test "$fptools_cv_have_long_long" = yes; then
 764 FPTOOLS_CHECK_ALIGNMENT(long long)
 765 fi
 766 FPTOOLS_CHECK_ALIGNMENT(short)
 767 FPTOOLS_CHECK_ALIGNMENT(unsigned char)
 768 FPTOOLS_CHECK_ALIGNMENT(unsigned int)
 769 FPTOOLS_CHECK_ALIGNMENT(unsigned long)
 770 if test "$fptools_cv_have_long_long" = yes; then
 771 FPTOOLS_CHECK_ALIGNMENT(unsigned long long)
 772 fi
 773 FPTOOLS_CHECK_ALIGNMENT(unsigned short)
 774 FPTOOLS_CHECK_ALIGNMENT(void *)
 775
 776 dnl ** map standard C types and ISO types to Haskell types
 777 FPTOOLS_CHECK_HTYPE(char)
 778 FPTOOLS_CHECK_HTYPE(signed char)
 779 FPTOOLS_CHECK_HTYPE(unsigned char)
 780 FPTOOLS_CHECK_HTYPE(short)
 781 FPTOOLS_CHECK_HTYPE(unsigned short)
 782 FPTOOLS_CHECK_HTYPE(int)
 783 FPTOOLS_CHECK_HTYPE(unsigned int)
 784 FPTOOLS_CHECK_HTYPE(long)
 785 FPTOOLS_CHECK_HTYPE(unsigned long)
 786 if test "$fptools_cv_have_long_long" = yes; then
 787 FPTOOLS_CHECK_HTYPE(long long)
 788 FPTOOLS_CHECK_HTYPE(unsigned long long)
 789 fi
 790 FPTOOLS_CHECK_HTYPE(float)
 791 FPTOOLS_CHECK_HTYPE(double)
 792 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
 793 FPTOOLS_CHECK_HTYPE(size_t)
 794 FPTOOLS_CHECK_HTYPE(wchar_t)
 795 dnl Int32 is a HACK for non-ISO C compilers
 796 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
 797 FPTOOLS_CHECK_HTYPE(clock_t)
 798 FPTOOLS_CHECK_HTYPE(time_t)
 799 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
 800 FPTOOLS_CHECK_HTYPE(ino_t)
 801 FPTOOLS_CHECK_HTYPE(mode_t)
 802 FPTOOLS_CHECK_HTYPE(off_t)
 803 FPTOOLS_CHECK_HTYPE(pid_t)
 804 FPTOOLS_CHECK_HTYPE(gid_t)
 805 FPTOOLS_CHECK_HTYPE(uid_t)
 806 FPTOOLS_CHECK_HTYPE(cc_t)
 807 FPTOOLS_CHECK_HTYPE(speed_t)
 808 FPTOOLS_CHECK_HTYPE(tcflag_t)
 809 FPTOOLS_CHECK_HTYPE(nlink_t)
 810 FPTOOLS_CHECK_HTYPE(ssize_t)
 811
 812 dnl ** Map OpenGL data types to Haskell types
 813 if test $GhcLibsWithHOpenGL = YES ; then
 814 FPTOOLS_CHECK_HTYPE(GLboolean)
 815 FPTOOLS_CHECK_HTYPE(GLbyte)
 816 FPTOOLS_CHECK_HTYPE(GLubyte)
 817 FPTOOLS_CHECK_HTYPE(GLshort)
 818 FPTOOLS_CHECK_HTYPE(GLushort)
 819 FPTOOLS_CHECK_HTYPE(GLint)
 820 FPTOOLS_CHECK_HTYPE(GLuint)
 821 FPTOOLS_CHECK_HTYPE(GLsizei)
 822 FPTOOLS_CHECK_HTYPE(GLenum)
 823 FPTOOLS_CHECK_HTYPE(GLbitfield)
 824 FPTOOLS_CHECK_HTYPE(GLfloat)
 825 FPTOOLS_CHECK_HTYPE(GLclampf)
 826 FPTOOLS_CHECK_HTYPE(GLdouble)
 827 FPTOOLS_CHECK_HTYPE(GLclampd)
 828 fi
 829
 830 dnl ** can we open files in binary mode?
 831 FPTOOLS_O_BINARY
 832
 833 dnl ** check for GetModuleFileName and WinExec (windows only)
 834 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
 835 dnl Doesn't work because the linker can't see the functions if
 836 dnl you omit the #include <windows.h>.  (I've no idea why not...)
 837
 838 FPTOOLS_TRY_LINK_NOWARN(,[
 839 #if HAVE_WINDOWS_H
 840 #include <windows.h>
 841 #endif
 842 main() {
 843   WinExec("",0);
 844   exit(0);
 845 }
 846 ],
 847 [have_winexec=1],
 848 [have_winexec=0])
 849 if test "$have_winexec" = "1"; then
 850 AC_DEFINE(HAVE_WINEXEC)
 851 fi
 852
 853 FPTOOLS_TRY_LINK_NOWARN(,[
 854 #if HAVE_WINDOWS_H
 855 #include <windows.h>
 856 #endif
 857 main() {
 858   char* dir;
 859   GetModuleFileName((HMODULE)0,dir,0);
 860   exit(0);
 861 }
 862 ],
 863 [have_getmodulefilename=1],
 864 [have_getmodulefilename=0])
 865 if test "$have_getmodulefilename" = "1"; then
 866 AC_DEFINE(HAVE_GETMODULEFILENAME)
 867 fi
 868
 869 dnl ** check return type of signal handlers
 870 dnl Foo: assumes we can use prototypes.
 871 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 872 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
 873 dnl [AC_TRY_COMPILE([#include <sys/types.h>
 874 dnl #include <signal.h>
 875 dnl #ifdef signal
 876 dnl #undef signal
 877 dnl #endif
 878 dnl void (*signal (int, void (*)(int)))(int);
 879 dnl ],
 880 dnl [int i;],
 881 dnl ac_cv_type_signal_handler=void_int,
 882 dnl ac_cv_type_signal_handler=int_void)])
 883 dnl if test "$ac_cv_type_signal_handler" = void_int; then
 884 dnl AC_DEFINE(VOID_INT_SIGNALS)
 885 dnl fi
 886
 887 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
 888 AC_TYPE_SIGNAL
 889 if test "$ac_cv_type_signal" = void; then
 890 AC_DEFINE(VOID_INT_SIGNALS)
 891 fi
 892
 893 dnl ** check for more functions
 894 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
 895 AC_CHECK_FUNCS(strcmp)
 896 AC_CHECK_FUNCS(realpath _fullpath)
 897 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
 898 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
 899 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
 900 AC_CHECK_FUNCS(snprintf  _snprintf )
 901 AC_CHECK_FUNCS(popen     _popen )
 902 AC_CHECK_FUNCS(pclose    _pclose )
 903
 904
 905 dnl ** check for specific library functions that we are interested in
 906 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise vfork localtime_r gmtime_r readdir_r)
 907
 908 dnl ** check whether this machine has gmp3 installed
 909 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
 910   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
 911     HaveLibGmp=NO; LibGmp=not-installed))
 912 AC_SUBST(HaveLibGmp)
 913 AC_SUBST(LibGmp)
 914
 915 if test "$HaveLibGmp" = "NO"; then
 916 if test "$HostArch_CPP" = "ia64"; then
 917 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
 918 fi;
 919 fi;
 920
 921 dnl ** check whether this machine has GNU regex in libc.
 922 FPTOOLS_REGEX_IN_LIBC
 923
 924 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 925 dnl    the order of these tests matters: bfd needs liberty
 926 AC_CHECK_LIB(iberty, xmalloc)
 927 AC_CHECK_LIB(bfd,    bfd_init)
 928
 929 dnl ** check for readline, for Hugs and hslibs' Readline
 930 dnl ncurses supersedes termcap and curses, but for compatibility,
 931 dnl we have to check for all...
 932 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
 933   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
 934     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
 935       HaveLibTermcap=NO; LibTermcap=not-installed)))
 936
 937 if test $HaveLibTermcap = YES ; then
 938   LIBS="-l$LibTermcap $LIBS"
 939   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
 940 fi
 941
 942 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
 943   AC_DEFINE(HAVE_READLINE_LIBS,1)
 944   LibsReadline="readline $LibTermcap"
 945 else
 946   AC_DEFINE(HAVE_READLINE_LIBS,0)
 947   LibsReadline=
 948 fi
 949 AC_SUBST(LibsReadline)
 950
 951 if test "$HaveLibReadline"; then
 952   AC_CHECK_LIB(readline, rl_erase_empty_line,
 953     [AC_DEFINE(HAVE_READLINE_4, 1)],
 954     [AC_DEFINE(HAVE_READLINE_4, 0)])
 955   AC_CHECK_LIB(readline, rl_free_undo_list,
 956     [AC_DEFINE(HAVE_READLINE_4_2, 1)],
 957     [AC_DEFINE(HAVE_READLINE_4_2, 0)])
 958 else
 959   AC_DEFINE(HAVE_READLINE_4, 0)
 960   AC_DEFINE(HAVE_READLINE_4_2, 0)
 961 fi
 962
 963 dnl ** check for math library
 964 FPTOOLS_CHECK_LIBM()
 965 AC_SUBST(LIBM)
 966
 967 case $HostOS_CPP in
 968 cygwin32) ;;
 969 mingw32)  ;;
 970 *) AC_PATH_XTRA() ;;
 971 esac
 972
 973 FPTOOLS_HAVE_OPENGL
 974
 975 dnl ################################################################
 976 dnl Check for libraries
 977 dnl ################################################################
 978
 979 dnl ** check for libdl & RTLD_NEXT
 980
 981 AC_CHECK_LIB(dl, dlopen,
 982         [HaveLibDL=YES
 983          AC_DEFINE(HAVE_LIBDL)
 984          LIBS="$LIBS -ldl"],
 985         [HaveLibDL=NO])
 986 AC_CHECK_FUNCS(dlopen)
 987 AC_SUBST(HaveLibDL)
 988
 989 dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
 990 AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
 991 AC_EGREP_CPP(yes,
 992 [
 993  #include <dlfcn.h>
 994  #ifdef RTLD_NEXT
 995         yes
 996  #endif
 997 ], [
 998   AC_MSG_RESULT(yes)
 999   AC_DEFINE(HAVE_RTLDNEXT)
1000   HaveRtldNext=YES
1001 ], [
1002   AC_MSG_RESULT(no)
1003   HaveRtldNext=NO
1004   ])
1005 AC_SUBST(HaveRtldNext)
1006
1007 dnl ** RTLD_LOCAL isn't available on cygwin
1008 AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1009 AC_EGREP_CPP(yes,
1010 [
1011  #include <dlfcn.h>
1012  #ifdef RTLD_LOCAL
1013         yes
1014  #endif
1015 ], [
1016   AC_MSG_RESULT(yes)
1017   AC_DEFINE(HAVE_RTLDLOCAL)
1018   HaveRtldLocal=YES
1019 ], [
1020   AC_MSG_RESULT(no)
1021   HaveRtldLocal=NO
1022   ])
1023 AC_SUBST(HaveRtldLocal)
1024
1025 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1026
1027 dnl --------------------------------------------------
1028 dnl * test for GTK+
1029 dnl --------------------------------------------------
1030
1031 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1032 if test "$GTK_CONFIG" != ""; then
1033    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1034         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1035     ])
1036     GTK_VERSION=$fptools_cv_gtk_version
1037 else
1038     GTK_VERSION=
1039 fi
1040
1041 case $fptools_cv_gtk_version in
1042   1.[[23]].*) ;;
1043   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1044      GTK_CONFIG=
1045      ;;
1046 esac
1047
1048 AC_SUBST(GTK_CONFIG)
1049 AC_SUBST(GTK_VERSION)
1050
1051 dnl --------------------------------------------------
1052 dnl * Miscellaneous feature tests
1053 dnl --------------------------------------------------
1054
1055 dnl ** can we get alloca?
1056 AC_FUNC_ALLOCA
1057
1058 dnl ** determine whether or not const works
1059 AC_C_CONST
1060
1061 dnl ** determine whether ANSI-function prototypes work?
1062 AC_C_PROTOTYPES
1063
1064 dnl ** are we big endian?
1065 AC_C_BIGENDIAN
1066 # Allay users' general fear of warnings of any kind.
1067 errprint(fptools configure script wizard sez: autoconf-2.50 or later should produce no warnings
1068 )
1069 errprint(if you are using 2.13 or earlier, you may get a (harmless) warning message.
1070 )
1071
1072 dnl ** check for leading underscores in symbol names
1073 FPTOOLS_UNDERSCORE
1074
1075 dnl ** how is the end of text section signalled?
1076 FPTOOLS_END_TEXT_SECTION
1077
1078 dnl ** how is the end of data section signalled?
1079 FPTOOLS_END_DATA_SECTION
1080
1081 dnl ** code before data?
1082 FPTOOLS_CODE_BEFORE_DATA
1083
1084 dnl ** check for ld, and whether ld has -x option
1085 AC_PATH_PROG(LdCmdRaw, ld)
1086 case $HostOS_CPP in
1087  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1088            ;;
1089  *) LdCmd=${LdCmdRaw}
1090     ;;
1091 esac
1092 AC_SUBST(LdCmd)
1093 FPTOOLS_LD_X
1094
1095 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )