[project @ 2003-08-19 09:39:48 by panne]
[ghc-hetmet.git] / configure.ac
1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/   +/g;'"
3 dnl  (or some such) to see the outline of this file)
4 dnl
5 #
6 # (c) The AQUA Project, Glasgow University, 1994-1998
7 #
8 # Configure script template for the Glasgow functional programming tools
9 #
10 # Process with 'autoconf' to get a working configure script.
11 #
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
14 #
15
16 # First off, a distrib sanity check..
17 AC_INIT(mk/config.mk.in)
18
19 dnl * We require autoconf version 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE
20 AC_PREREQ(2.50)
21
22 dnl * Declare subdirectories that have a private configure script
23 dnl
24 dnl After the toplevel configuration is complete, the script will recurse into
25 dnl these subdirectories (the use of cache values makes repeated checks cheap)
26 dnl (We probably have to add hslibs/{OpenGL,GLUT} here later...)
27 AC_CONFIG_SUBDIRS(ghc)
28
29 # -------------------------------------------------------------------------
30 # Prepare to generate the following header files
31 #
32 #
33 AC_CONFIG_HEADER(mk/config.h)
34
35 # No, semi-sadly, we don't do `--srcdir'...
36 if test x"$srcdir" != 'x.' ; then
37     echo "This configuration does not support the \`--srcdir' option.."
38     exit 1
39 fi
40
41 dnl--------------------------------------------------------------------
42 dnl * Choose host(/target/build) platform
43 dnl--------------------------------------------------------------------
44
45 dnl Guess host/target/build platform(s) if necessary.
46 AC_CANONICAL_SYSTEM
47
48 # "$host" defaults to "$target"
49 if test "x$host" = xNONE ; then
50     host=$target
51 fi
52
53 dnl ** canonicalize platform names
54 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
55 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
56 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
57
58 if test x"$TargetPlatform" != x"$HostPlatform" ; then
59     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
60     exit 1
61 fi
62
63 exeext=''
64 #
65 # The following will be more difficult when we *are* cross-compiling.
66 # Suitable names to slam in *_CPP are in platform.h.in.
67 # We also record the architecture, vendor, and operating system (OS)
68 # separately.
69 case $HostPlatform in
70 alpha*-dec-osf[[12]]*)
71         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
72         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
73         BuildPlatform=alpha-dec-osf1  # hack
74         HostPlatform_CPP='alpha_dec_osf1'
75         HostArch_CPP='alpha'
76         HostVendor_CPP='dec'
77         HostOS_CPP='osf1'
78         ;;
79 alpha*-dec-osf[[345]]*)
80         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
81         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
82         BuildPlatform=alpha-dec-osf3  # hack
83         HostPlatform_CPP='alpha_dec_osf3'
84         HostArch_CPP='alpha'
85         HostVendor_CPP='dec'
86         HostOS_CPP='osf3'
87         ;;
88 alpha*-unknown-linux*)
89         HostPlatform=alpha-unknown-linux
90         TargetPlatform=alpha-unknown-linux
91         BuildPlatform=alpha-unknown-linux
92         HostPlatform_CPP='alpha_unknown_linux'
93         HostArch_CPP='alpha'
94         HostVendor_CPP='unknown'
95         HostOS_CPP='linux'
96         ;;
97 alpha*-unknown-freebsd*)
98         HostPlatform=alpha-unknown-freebsd
99         TargetPlatform=alpha-unknown-freebsd
100         BuildPlatform=alpha-unknown-freebsd
101         HostPlatform_CPP='alpha_unknown_freebsd'
102         HostArch_CPP='alpha'
103         HostVendor_CPP='unknown'
104         HostOS_CPP='freebsd'
105         ;;
106 hppa1.1-hp-hpux*)
107         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
108         TargetPlatform=hppa1.1-hp-hpux
109         BuildPlatform=hppa1.1-hp-hpux
110         HostPlatform_CPP='hppa1_1_hp_hpux'
111         HostArch_CPP='hppa1_1'
112         HostVendor_CPP='hp'
113         HostOS_CPP='hpux'
114         ;;
115 i[[3456]]86-*-linuxaout*)
116         HostPlatform=i386-unknown-linuxaout   # hack again
117         TargetPlatform=i386-unknown-linuxaout
118         BuildPlatform=i386-unknown-linuxaout
119         HostPlatform_CPP='i386_unknown_linuxaout'
120         HostArch_CPP='i386'
121         HostVendor_CPP='unknown'
122         HostOS_CPP='linuxaout'
123         ;;
124 i[[3456]]86-*-linux*)
125         HostPlatform=i386-unknown-linux # hack again
126         TargetPlatform=i386-unknown-linux
127         BuildPlatform=i386-unknown-linux
128         HostPlatform_CPP='i386_unknown_linux'
129         HostArch_CPP='i386'
130         HostVendor_CPP='unknown'
131         HostOS_CPP='linux'
132         ;;
133 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
134         HostPlatform=i386-unknown-freebsd # hack again
135         TargetPlatform=i386-unknown-freebsd
136         BuildPlatform=i386-unknown-freebsd
137         HostPlatform_CPP='i386_unknown_freebsd'
138         HostArch_CPP='i386'
139         HostVendor_CPP='unknown'
140         HostOS_CPP='freebsd'
141         ;;
142 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
143         HostPlatform=i386-unknown-freebsd2 # hack again
144         TargetPlatform=i386-unknown-freebsd2
145         BuildPlatform=i386-unknown-freebsd2
146         HostPlatform_CPP='i386_unknown_freebsd2'
147         HostArch_CPP='i386'
148         HostVendor_CPP='unknown'
149         HostOS_CPP='freebsd2'
150         ;;
151 i[[3456]]86-*-netbsd*)
152         HostPlatform=i386-unknown-netbsd # hack again
153         TargetPlatform=i386-unknown-netbsd
154         BuildPlatform=i386-unknown-netbsd
155         HostPlatform_CPP='i386_unknown_netbsd'
156         HostArch_CPP='i386'
157         HostVendor_CPP='unknown'
158         HostOS_CPP='netbsd'
159         ;;
160 i[[3456]]86-*-openbsd*)
161         HostPlatform=i386-unknown-openbsd # hack again
162         TargetPlatform=i386-unknown-openbsd
163         BuildPlatform=i386-unknown-openbsd
164         HostPlatform_CPP='i386_unknown_openbsd'
165         HostArch_CPP='i386'
166         HostVendor_CPP='unknown'
167         HostOS_CPP='openbsd'
168         ;;
169 i[[3456]]86-*-solaris2*)
170         HostPlatform=i386-unknown-solaris2 # hack again
171         TargetPlatform=i386-unknown-solaris2
172         BuildPlatform=i386-unknown-solaris2
173         HostPlatform_CPP='i386_unknown_solaris2'
174         HostArch_CPP='i386'
175         HostVendor_CPP='unknown'
176         HostOS_CPP='solaris2'
177         ;;
178 i[[3456]]86-*-cygwin*)
179         HostPlatform=i386-unknown-cygwin32 # hack again
180         TargetPlatform=i386-unknown-cygwin32
181         BuildPlatform=i386-unknown-cygwin32
182         HostPlatform_CPP='i386_unknown_cygwin32'
183         HostArch_CPP='i386'
184         HostVendor_CPP='unknown'
185         HostOS_CPP='cygwin32'
186         exeext='.exe'
187         ;;
188 i[[3456]]86-*-mingw32*)
189         HostPlatform=i386-unknown-mingw32 # hack again
190         TargetPlatform=i386-unknown-mingw32
191         BuildPlatform=i386-unknown-mingw32
192         HostPlatform_CPP='i386_unknown_mingw32'
193         HostArch_CPP='i386'
194         HostVendor_CPP='unknown'
195         HostOS_CPP='mingw32'
196         exeext='.exe'
197         ;;
198 ia64-*-linux*)
199         HostPlatform=ia64-unknown-linux # hack again
200         TargetPlatform=ia64-unknown-linux
201         BuildPlatform=ia64-unknown-linux
202         HostPlatform_CPP='ia64_unknown_linux'
203         HostArch_CPP='ia64'
204         HostVendor_CPP='unknown'
205         HostOS_CPP='linux'
206         ;;
207 m68k-next-nextstep2)
208         HostPlatform_CPP='m68k_next_nextstep2'
209         HostArch_CPP='m68k'
210         HostVendor_CPP='next'
211         HostOS_CPP='nextstep2'
212         ;;
213 m68k-next-nextstep3)
214         HostPlatform_CPP='m68k_next_nextstep3'
215         HostArch_CPP='m68k'
216         HostVendor_CPP='next'
217         HostOS_CPP='nextstep3'
218         ;;
219 i[[3456]]86-next-nextstep3)
220         HostPlatform=i386-next-nextstep3 # hack again
221         TargetPlatform=i386-next-nextstep3
222         BuildPlatform=i386-next-nextstep3
223         HostPlatform_CPP='i386_next_nextstep3'
224         HostArch_CPP='i386'
225         HostVendor_CPP='next'
226         HostOS_CPP='nextstep3'
227         ;;
228 m68k-*-openbsd*)
229         HostPlatform=m68k-unknown-openbsd
230         TargetPlatform=m68k-unknown-openbsd
231         BuildPlatform=m68k-unknown-openbsd
232         HostPlatform_CPP='m68k_unknown_openbsd'
233         HostArch_CPP='m68k'
234         HostVendor_CPP='unknown'
235         HostOS_CPP='openbsd'
236         ;;
237 m68k-apple-netbsd*)
238         HostPlatform=m68k-apple-netbsd
239         TargetPlatform=m68k-apple-netbsd
240         BuildPlatform=m68k-apple-netbsd
241         HostPlatform_CPP='m68k_apple_netbsd'
242         HostArch_CPP='m68k'
243         HostVendor_CPP='apple'
244         HostOS_CPP='netbsd'
245         ;;
246 m68k-sun-sunos4*)
247         HostPlatform=m68k-sun-sunos4
248         TargetPlatform=m68k-sun-sunos4 #hack
249         BuildPlatform=m68k-sun-sunos4 #hack
250         HostPlatform_CPP='m68k_sun_sunos4'
251         HostArch_CPP='m68k'
252         HostVendor_CPP='sun'
253         HostOS_CPP='sunos4'
254         ;;
255 mips-dec-ultrix*)
256         HostPlatform_CPP='mips_dec_ultrix'
257         HostArch_CPP='mipsel'   # NB a little different
258         HostVendor_CPP='dec'
259         HostOS_CPP='ultrix'
260         ;;
261 mips-sgi-irix*)
262         HostPlatform=mips-sgi-irix
263         TargetPlatform=mips-sgi-irix #hack
264         BuildPlatform=mips-sgi-irix #hack
265         HostPlatform_CPP='mips_sgi_irix'
266         HostArch_CPP='mipseb'   # NB a little different
267         HostVendor_CPP='sgi'
268         HostOS_CPP='irix'
269         ;;
270 rs6000-ibm-aix*)
271         HostPlatform=rs6000-ibm-aix
272         TargetPlatform=rs6000-ibm-aix #hack
273         BuildPlatform=rs6000-ibm-aix #hack
274         HostPlatform_CPP='rs6000_ibm_aix'
275         HostArch_CPP='rs6000'
276         HostVendor_CPP='ibm'
277         HostOS_CPP='aix'
278         ;;
279 powerpc-ibm-aix*)
280         HostPlatform=powerpc-ibm-aix
281         TargetPlatform=powerpc-ibm-aix #hack
282         BuildPlatform=powerpc-ibm-aix #hack
283         HostPlatform_CPP='powerpc_ibm_aix'
284         HostArch_CPP='powerpc'
285         HostVendor_CPP='ibm'
286         HostOS_CPP='aix'
287         ;;
288 powerpc-apple-darwin*)
289         HostPlatform=powerpc-apple-darwin
290         TargetPlatform=powerpc-apple-darwin #hack
291         BuildPlatform=powerpc-apple-darwin #hack
292         HostPlatform_CPP='powerpc_apple_darwin'
293         HostArch_CPP='powerpc'
294         HostVendor_CPP='apple'
295         HostOS_CPP='darwin'
296         ;;
297 sparc-sun-sunos4*)
298         HostPlatform=sparc-sun-sunos4
299         TargetPlatform=sparc-sun-sunos4 #hack
300         BuildPlatform=sparc-sun-sunos4 #hack
301         HostPlatform_CPP='sparc_sun_sunos4'
302         HostArch_CPP='sparc'
303         HostVendor_CPP='sun'
304         HostOS_CPP='sunos4'
305         ;;
306 sparc-sun-solaris2*)
307         HostPlatform=sparc-sun-solaris2
308         TargetPlatform=sparc-sun-solaris2 #hack
309         BuildPlatform=sparc-sun-solaris2 #hack
310         HostPlatform_CPP='sparc_sun_solaris2'
311         HostArch_CPP='sparc'
312         HostVendor_CPP='sun'
313         HostOS_CPP='solaris2'
314         ;;
315 sparc*-linux*)
316         HostPlatform=sparc-unknown-linux
317         TargetPlatform=sparc-unknown-linux
318         BuildPlatform=sparc-unknown-linux
319         HostPlatform_CPP='sparc_unknown_linux'
320         HostArch_CPP='sparc'
321         HostVendor_CPP='unknown'
322         HostOS_CPP='linux'
323         ;;
324 sparc-*-openbsd*)
325         HostPlatform=sparc-unknown-openbsd
326         TargetPlatform=sparc-unknown-openbsd
327         BuildPlatform=sparc-unknown-openbsd
328         HostPlatform_CPP='sparc_unknown_openbsd'
329         HostArch_CPP='sparc'
330         HostVendor_CPP='unknown'
331         HostOS_CPP='openbsd'
332         ;;
333 *)
334         echo "Unrecognised platform: $HostPlatform"
335         exit 1
336         ;;
337 esac
338 echo "Canonicalised to: $HostPlatform"
339 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
340 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
341
342 BuildPlatform_CPP=$HostPlatform_CPP
343 TargetPlatform_CPP=$HostPlatform_CPP
344 BuildArch_CPP=$HostArch_CPP
345 TargetArch_CPP=$HostArch_CPP
346 BuildOS_CPP=$HostOS_CPP
347 HostOS_Full=$host_os
348 TargetOS_CPP=$HostOS_CPP
349 BuildVendor_CPP=$HostVendor_CPP
350 TargetVendor_CPP=$HostVendor_CPP
351
352 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
353 dnl AC_SUBST(BuildPlatform)
354
355 AC_SUBST(HostPlatform)
356 AC_SUBST(TargetPlatform)
357 AC_SUBST(HostPlatform_CPP)
358 dnl AC_SUBST(BuildPlatform_CPP)
359 dnl AC_SUBST(TargetPlatform_CPP)
360
361 AC_SUBST(HostArch_CPP)
362 dnl AC_SUBST(BuildArch_CPP)
363 dnl AC_SUBST(TargetArch_CPP)
364
365 AC_SUBST(HostOS_CPP)
366 AC_SUBST(HostOS_Full)
367 dnl AC_SUBST(BuildOS_CPP)
368 dnl AC_SUBST(TargetOS_CPP)
369
370 AC_SUBST(HostVendor_CPP)
371 dnl AC_SUBST(BuildVendor_CPP)
372 dnl AC_SUBST(TargetVendor_CPP)
373
374 AC_SUBST(exeext)
375
376 dnl --------------------------------------------------------------
377 dnl * Calculate absolute path to build tree
378 dnl --------------------------------------------------------------
379
380 AC_MSG_CHECKING(for path to top of build tree)
381
382 hardtop=`pwd`
383
384 dnl Remove common automounter nonsense
385 dnl
386 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
387
388 dnl Find 'hardtop_plat', the native format for 'hardtop' (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
389 dnl
390 case $HostPlatform in
391   i386-unknown-mingw32 | i386-unknown-cygwin32)
392         # convert $hardtop to a path that mingw will understand too
393         cyghardtop=${hardtop}
394         hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
395         hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
396         ;;
397   *)
398         hardtop_plat=${hardtop}
399         ;;
400 esac
401 AC_SUBST(hardtop)
402 AC_SUBST(hardtop_plat)
403
404 AC_MSG_RESULT(${hardtop})
405
406 dnl --------------------------------------------------------------
407 dnl * Project specific configuration options
408 dnl --------------------------------------------------------------
409 dnl What follows is a bunch of options that can either be configured
410 dnl through command line options to the configure script or by
411 dnl supplying defns in the build tree's mk/build.mk. Having the option to
412 dnl use either is considered a Feature.
413
414 dnl ** What command to use to compile compiler sources ?
415 dnl --------------------------------------------------------------
416
417 AC_ARG_WITH(ghc,
418 [  --with-ghc=<haskell compiler>
419         Use a command different from 'ghc' to compile GHC-specific Haskell code
420             (including GHC itself).
421 ],
422 [ WithGhc="$withval" ],
423
424   if test "$GHC" = ""; then
425     AC_PATH_PROG(GHC,ghc)
426   fi
427   WithGhc=$GHC
428 ]
429 )
430 AC_SUBST(WithGhc)
431
432 AC_ARG_WITH(hc,
433 [  --with-hc=<haskell compiler>
434         Use a command different from 'ghc' to compile generic Haskell code.
435 ],
436 [WithHc="$withval"],
437 [WithHc=$WithGhc]
438 )
439 AC_SUBST(WithHc)
440
441 if test "$WithGhc" != ""; then
442   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
443   AC_SUBST(GhcVersion)dnl
444   AC_SUBST(GhcMajVersion)dnl
445   AC_SUBST(GhcMinVersion)dnl
446   AC_SUBST(GhcPatchLevel)dnl
447 fi
448
449 AC_PATH_PROGS(NHC,nhc nhc98)
450 AC_PATH_PROG(HBC,hbc)
451
452 dnl ** Which gcc to use?
453 dnl --------------------------------------------------------------
454 AC_ARG_WITH(gcc,
455 [  --with-gcc=<gcc command>
456         Use a different command instead of 'gcc' for the GNU C compiler.
457 ],
458 [WhatGccIsCalled="$withval"
459  if test "x$HostPlatform" = "xi386-unknown-mingw32"; then
460     # Canonicalise to <drive>:/path/to/gcc
461     withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
462  fi;
463  CC="$withval"],
464 [WhatGccIsCalled="gcc"]
465 )
466 AC_SUBST(WhatGccIsCalled)
467
468 dnl ** Booting from .hc files?
469 dnl --------------------------------------------------------------
470 AC_ARG_ENABLE(hc-boot,
471 [  --enable-hc-boot
472         Boot the Glasgow Haskell Compiler from intermediate .hc files.
473         (This option is mostly of interest to porters.)
474 ],
475 [BootingFromHc=YES],
476 [BootingFromHc=NO]
477 )
478 AC_SUBST(BootingFromHc)
479
480 dnl ** Booting from unregisterised .hc files?
481 dnl --------------------------------------------------------------
482 AC_ARG_ENABLE(hc-boot-unregisterised,
483 [  --enable-hc-boot-unregisterised
484         With --enable-hc-boot, treat the intermediate .hc files as
485         unregisterised rather than registerised code.
486         (This option is mostly of interest to porters.)
487 ],
488 [BootingFromUnregisterisedHc=YES],
489 [BootingFromUnregisterisedHc=NO]
490 )
491 AC_SUBST(BootingFromUnregisterisedHc)
492
493 if test "$BootingFromHc" = "NO"; then
494 if test "$BootingFromUnregisterisedHc" = "YES"; then
495 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
496 fi;
497 fi;
498
499 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
500 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
501 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
502 fi;
503
504 dnl ** Enable multi-thread friendly RTS?
505 dnl --------------------------------------------------------------
506 AC_ARG_ENABLE(threaded-rts,
507 [  --enable-threaded-rts
508         Support better interop with OS threads.
509 ],
510 [ThreadedRts=YES],
511 [ThreadedRts=NO]
512 )
513 AC_SUBST(ThreadedRts)
514
515 dnl ** Enable the construction of Win32 DLLs?
516 dnl --------------------------------------------------------------
517 dnl
518 dnl [ The ability to build the RTS and libraries as separate DLLs used
519 dnl   to be supported, but isn't currently (updates to the RTS, compiler 
520 dnl   and build system would be required to bring it back again.)
521 dnl   Hence, exposing it as an option is false advertisement, so better
522 dnl   disable it to avoid confusion (but leave it commented-out rather
523 dnl   than removed in order to remind ourselves to bring back the 
524 dnl   feature at some stage.) ]
525 dnl
526 dnl AC_ARG_ENABLE(win32-dlls,
527 dnl [  --enable-win32-dlls
528 dnl         If on a Win32 platform running mingw32/cygwin, enable the
529 dnl     construction of DLLs containing ghc-compiled code.
530 dnl ],
531 dnl [
532 dnl case $HostOS_CPP in
533 dnl cygwin32) ;;
534 dnl mingw32)  ;;
535 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
536 dnl       exit 1
537 dnl       ;;
538 dnl esac
539 dnl EnableWin32DLLs=YES
540 dnl ],
541 dnl [EnableWin32DLLs=NO]
542 dnl )
543 dnl AC_SUBST(EnableWin32DLLs)
544 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
545 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
546 dnl fi
547
548 dnl ** Enable the building of the ObjectIO?
549 dnl --------------------------------------------------------------
550 AC_ARG_ENABLE(objectio,
551 [  --enable-objectio
552         Build ObjectIO, a portable GUI library for Haskell.
553 ],
554 [GhcLibsWithObjectIO=YES],
555 [GhcLibsWithObjectIO=NO]
556 )
557 AC_SUBST(GhcLibsWithObjectIO)
558
559 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
560 dnl --------------------------------------------------------------
561 AC_ARG_ENABLE(hopengl,
562 [  --enable-hopengl
563         Build HOpenGL, a Haskell binding for OpenGL/GLUT.
564         On Mac OS X, use --enable-hopengl=x11 to use X11 instead
565         of the "native" libraries.
566 ],
567 [GhcLibsWithHOpenGL=YES],
568 [GhcLibsWithHOpenGL=NO]
569 )
570 UseQuartzOpenGL=NO
571 if test x"$TargetOS_CPP" = x"darwin"; then
572   if test x"$enable_hopengl" != x"x11"; then
573     AC_DEFINE([USE_QUARTZ_OPENGL], [1],
574               [Define to 1 if native OpenGL should be used on Mac OS X])
575     UseQuartzOpenGL=YES
576   fi
577 fi
578
579 AC_SUBST(GhcLibsWithHOpenGL)
580
581 dnl ** .NET interop support?
582 dnl --------------------------------------------------------------
583 AC_ARG_ENABLE(dotnet,
584 [  --enable-dotnet
585         Build .NET interop layer.
586 ],
587 [DotnetSupport=YES; AC_DEFINE(WANT_DOTNET_SUPPORT)],
588 [DotnetSupport=NO]
589 )
590 AC_SUBST(DotnetSupport)
591
592 dnl --------------------------------------------------------------
593 dnl End of configure script option section
594 dnl --------------------------------------------------------------
595
596
597 dnl --------------------------------------------------------------
598 dnl * General configuration checks
599 dnl --------------------------------------------------------------
600
601 dnl ** does #! work?
602 AC_SYS_INTERPRETER()
603
604 dnl ** look for `perl', but only in /bin on Windows
605 case $HostOS_CPP in
606 cygwin32|mingw32)
607       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
608       if test -z "$PerlCmd"; then
609          echo "You must install the version of Perl shipped with GHC"
610          echo "(or a compatible one) in /bin."
611          exit 1
612       fi
613    ;;
614 *)
615    AC_PATH_PROG(PerlCmd,perl)
616    if test -z "$PerlCmd"; then
617       echo "You must install perl before you can continue"
618       echo "Perhaps it is already installed, but not in your PATH?"
619       exit 1
620    else
621    FPTOOLS_CHECK_PERL_VERSION
622    fi
623    ;;
624 esac
625
626 dnl ** does #! path/to/perl work? (sometimes it's too long...)
627 FPTOOLS_SHEBANG_PERL
628
629 dnl ** check for Python
630 AC_PATH_PROG(PythonCmd,python)
631
632 dnl ** look for GCC and find out which version
633 dnl     Figure out which C compiler to use.  Gcc is preferred.
634 dnl     If gcc, make sure it's at least 2.1
635 dnl
636 AC_PROG_CC
637 FPTOOLS_HAVE_GCC
638 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
639
640 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
641 AC_PROG_CPP
642
643 dnl ** Without optimization some INLINE trickery fails for GHCi
644 SRC_CC_OPTS="-O"
645
646 dnl ** Try to add -mno-cygwin to the C compiler options for mingw32 targets
647 if test x"$TargetOS_CPP" = x"mingw32"; then
648   FPTOOLS_CC_FLAG(-mno-cygwin,CC_SUPPORTS_MNO_CYGWIN)
649   SRC_CC_OPTS="$CC_SUPPORTS_MNO_CYGWIN $SRC_CC_OPTS"
650   CPPFLAGS="$CC_SUPPORTS_MNO_CYGWIN $CPPFLAGS"
651 fi
652 AC_SUBST(SRC_CC_OPTS)
653
654 dnl ** figure out how to do context diffs
655 FP_PROG_CONTEXT_DIFF
656
657 dnl ** Find find command (for Win32's benefit)
658 FPTOOLS_FIND_FIND
659
660 dnl ** figure out how to do a BSD-ish install
661 AC_PROG_INSTALL
662
663 dnl If you can run configure, you certainly have /bin/sh
664 AC_DEFINE(HAVE_BIN_SH)
665
666 dnl ** how to invoke `ar' and `ranlib'
667 FPTOOLS_PROG_AR_AND_RANLIB
668
669 dnl ** Check to see whether ln -s works
670 AC_PROG_LN_S
671
672
673 dnl ** Find the path to sed
674 AC_PATH_PROG(SedCmd,sed)
675
676
677 dnl ** check for time command
678 AC_PATH_PROG(TimeCmd,time)
679
680 dnl ** check for tar
681 dnl   if GNU tar is named gtar, look for it first.
682 AC_PATH_PROGS(TarCmd,gtar tar,tar)
683
684 dnl ** check for gzip/compress
685 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
686
687 dnl ** check for jade/openjade & determine a working catalog
688 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
689 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl, 
690                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
691 if test -z "$Catalog"; then
692   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
693 fi
694 case $Catalog in
695    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
696         Catalog=
697         ;;
698    glafp*) 
699         case $HostOS_CPP in
700            mingw32)
701               Catalog=`cygpath -w $hardtop/$Catalog`
702               ;;
703            *) Catalog=$hardtop/$Catalog
704               ;;
705         esac
706    ;;
707 esac   
708 AC_SUBST(Catalog)
709
710 compress_nm=`basename $CompressCmd`
711 if test x"$compress_nm" = xgzip; then
712   CompressCmd="$CompressCmd -d"
713   CompressSuffix="gz"
714 else
715   CompressSuffix="Z"
716 fi
717 AC_SUBST(CompressCmd)
718 AC_SUBST(CompressSuffix)
719
720 dnl ** check for ghc-pkg command
721 changequote(, )dnl
722 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
723 changequote([, ])dnl
724 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
725    GhcPkgCmd=$ghc_pkg_guess
726    AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
727 else
728    AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
729 fi
730
731 AC_ARG_WITH(greencard,
732 [  --with-greencard=<greencard compiler>
733         Use a command different from 'green-card' to compile GreenCard files
734 ],
735 [
736 GreencardCmd=$withval;
737 FPTOOLS_GREENCARD(3.00)
738 ]
739 )
740
741 AC_ARG_ENABLE(src-tree-happy,
742 [  --enable-src-tree-happy
743         Build and use source tree (fptools/happy) version of Happy.
744 ],
745 [UseSrcTreeHappy=YES],
746 [UseSrcTreeHappy=NO]
747 )
748 dnl ** check for installed happy binary + version
749 dnl    (don't do it if we're booting from .hc files though.)
750 if test "$BootingFromHc" = "NO"; then
751 FPTOOLS_HAPPY
752 fi;
753
754 AC_ARG_ENABLE(src-tree-haddock,
755 [  --enable-src-tree-haddock
756         Build and use source tree (fptools/haddock) version of Haddock.
757 ],
758 [UseSrcTreeHaddock=YES],
759 [UseSrcTreeHaddock=NO]
760 )
761 dnl ** check for installed haddock
762 FPTOOLS_HADDOCK
763
764 AC_ARG_ENABLE(src-tree-alex,
765 [  --enable-src-tree-alex
766         Build and use source tree (fptools/alex) version of Alex.
767 ],
768 [UseSrcTreeAlex=YES],
769 [UseSrcTreeAlex=NO]
770 )
771 dnl ** check for installed alex binary + version
772 dnl    (don't do it if we're booting from .hc files though.)
773 if test "$BootingFromHc" = "NO"; then
774 FPTOOLS_ALEX
775 fi;
776
777 dnl --------------------------------------------------
778 dnl ### program checking section ends here ###
779 dnl --------------------------------------------------
780
781 dnl --------------------------------------------------
782 dnl * Platform header file and syscall feature tests
783 dnl ### checking the state of the local header files and syscalls ###
784
785 dnl ** check for full ANSI header (.h) files
786 AC_HEADER_STDC
787
788 dnl ** Enable large file support.  NB. do this before testing the type of
789 dnl    off_t, because it will affect the result of that test.
790 AC_SYS_LARGEFILE
791
792 dnl ** check for specific header (.h) files that we are interested in
793 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 bfd.h winsock.h pthread.h sys/uio.h)
794 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
795
796 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
797 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
798
799 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
800   HaveReadlineHeaders=YES
801   AC_DEFINE(HAVE_READLINE_HEADERS,1)
802 else
803   HaveReadlineHeaders=NO
804   AC_DEFINE(HAVE_READLINE_HEADERS,0)
805 fi
806 AC_SUBST(HaveReadlineHeaders)
807
808 dnl ** check for DOS include files
809 AC_CHECK_HEADERS(dos.h conio.h io.h std.h) 
810
811 dnl ** check for Windows include files
812 AC_CHECK_HEADERS(windows.h)
813
814 dnl ** check for OpenGL include files
815 if test $UseQuartzOpenGL = YES ; then
816   AC_CHECK_HEADERS(OpenGL/gl.h)
817 else
818   AC_CHECK_HEADERS(GL/gl.h)
819 fi
820
821 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
822 AC_HEADER_TIME
823
824 dnl dynamic loading include files
825 AC_CHECK_HEADERS(dlfcn.h dl.h) 
826
827 dnl ** check for farcalloc (in bcc)
828 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
829
830 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
831 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
832
833 dnl ** check for POSIX regex
834 HavePosixRegex=NO
835 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
836 AC_SUBST(HavePosixRegex)
837
838 dnl ** how do we get a timezone name, and UTC offset ?
839 AC_STRUCT_TIMEZONE
840
841 dnl ** do we have altzone?
842 FP_DECL_ALTZONE
843
844 dnl ** does struct stat contain st_blksize?
845 AC_STRUCT_ST_BLKSIZE
846
847 dnl ** do we have long longs?
848 AC_CHECK_TYPES([long long])
849
850 dnl ** check what fields struct msghdr contains
851 FPTOOLS_MSGHDR_MSG_ACCRIGHTS
852 FPTOOLS_MSGHDR_MSG_CONTROL
853
854 dnl ** what are the sizes of various types
855 AC_CHECK_SIZEOF(char,               1)
856 AC_CHECK_SIZEOF(double,             8)
857 AC_CHECK_SIZEOF(float,              4)
858 AC_CHECK_SIZEOF(int,                4)
859 AC_CHECK_SIZEOF(long,               4)
860 if test "$ac_cv_type_long_long" = yes; then
861 AC_CHECK_SIZEOF(long long,          8)
862 fi
863 AC_CHECK_SIZEOF(short,              2)
864 AC_CHECK_SIZEOF(unsigned char,      1)
865 AC_CHECK_SIZEOF(unsigned int,       4)
866 AC_CHECK_SIZEOF(unsigned long,      4)
867 if test "$ac_cv_type_long_long" = yes; then
868 AC_CHECK_SIZEOF(unsigned long long, 8)
869 fi
870 AC_CHECK_SIZEOF(unsigned short,     2)
871 AC_CHECK_SIZEOF(void *,             4)
872
873 dnl ** what are alignment constraints on various types
874 FP_CHECK_ALIGNMENT(char)
875 FP_CHECK_ALIGNMENT(double)
876 FP_CHECK_ALIGNMENT(float)
877 FP_CHECK_ALIGNMENT(int)
878 FP_CHECK_ALIGNMENT(long)
879 if test "$ac_cv_type_long_long" = yes; then
880 FP_CHECK_ALIGNMENT(long long)
881 fi
882 FP_CHECK_ALIGNMENT(short)
883 FP_CHECK_ALIGNMENT(unsigned char)
884 FP_CHECK_ALIGNMENT(unsigned int)
885 FP_CHECK_ALIGNMENT(unsigned long)
886 if test "$ac_cv_type_long_long" = yes; then
887 FP_CHECK_ALIGNMENT(unsigned long long)
888 fi
889 FP_CHECK_ALIGNMENT(unsigned short)
890 FP_CHECK_ALIGNMENT(void *)
891
892 dnl ** map standard C types and ISO types to Haskell types
893 FPTOOLS_CHECK_HTYPE(char)
894 FPTOOLS_CHECK_HTYPE(signed char)
895 FPTOOLS_CHECK_HTYPE(unsigned char)
896 FPTOOLS_CHECK_HTYPE(short)
897 FPTOOLS_CHECK_HTYPE(unsigned short)
898 FPTOOLS_CHECK_HTYPE(int)
899 FPTOOLS_CHECK_HTYPE(unsigned int)
900 FPTOOLS_CHECK_HTYPE(long)
901 FPTOOLS_CHECK_HTYPE(unsigned long)
902 if test "$ac_cv_type_long_long" = yes; then
903 FPTOOLS_CHECK_HTYPE(long long)
904 FPTOOLS_CHECK_HTYPE(unsigned long long)
905 fi
906 FPTOOLS_CHECK_HTYPE(float)
907 FPTOOLS_CHECK_HTYPE(double)
908 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
909 FPTOOLS_CHECK_HTYPE(size_t)
910 FPTOOLS_CHECK_HTYPE(wchar_t)
911 dnl Int32 is a HACK for non-ISO C compilers
912 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
913 FPTOOLS_CHECK_HTYPE(clock_t)
914 FPTOOLS_CHECK_HTYPE(time_t)
915 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
916 FPTOOLS_CHECK_HTYPE(ino_t)
917 FPTOOLS_CHECK_HTYPE(mode_t)
918 FPTOOLS_CHECK_HTYPE(off_t)
919 FPTOOLS_CHECK_HTYPE(pid_t)
920 FPTOOLS_CHECK_HTYPE(gid_t)
921 FPTOOLS_CHECK_HTYPE(uid_t)
922 FPTOOLS_CHECK_HTYPE(cc_t)
923 FPTOOLS_CHECK_HTYPE(speed_t)
924 FPTOOLS_CHECK_HTYPE(tcflag_t)
925 FPTOOLS_CHECK_HTYPE(blkcnt_t)
926 FPTOOLS_CHECK_HTYPE(nlink_t)
927 FPTOOLS_CHECK_HTYPE(ssize_t)
928 FPTOOLS_CHECK_HTYPE(rlim_t)
929
930 dnl ** Map OpenGL data types to Haskell types
931 if test $GhcLibsWithHOpenGL = YES ; then
932 FPTOOLS_CHECK_HTYPE(GLboolean)
933 FPTOOLS_CHECK_HTYPE(GLbyte)
934 FPTOOLS_CHECK_HTYPE(GLubyte)
935 FPTOOLS_CHECK_HTYPE(GLshort)
936 FPTOOLS_CHECK_HTYPE(GLushort)
937 FPTOOLS_CHECK_HTYPE(GLint)
938 FPTOOLS_CHECK_HTYPE(GLuint)
939 FPTOOLS_CHECK_HTYPE(GLsizei)
940 FPTOOLS_CHECK_HTYPE(GLenum)
941 FPTOOLS_CHECK_HTYPE(GLbitfield)
942 FPTOOLS_CHECK_HTYPE(GLfloat)
943 FPTOOLS_CHECK_HTYPE(GLclampf)
944 FPTOOLS_CHECK_HTYPE(GLdouble)
945 FPTOOLS_CHECK_HTYPE(GLclampd)
946 fi
947
948 FPTOOLS_CHECK_CCONSTS(E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV)
949
950 dnl ** can we open files in binary mode?
951 FPTOOLS_O_BINARY
952
953 dnl ** check for GetModuleFileName and WinExec (windows only)
954 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
955 dnl Doesn't work because the linker can't see the functions if
956 dnl you omit the #include <windows.h>.  (I've no idea why not...)
957
958 FPTOOLS_TRY_LINK_NOWARN(,[
959 #if HAVE_WINDOWS_H
960 #include <windows.h>
961 #endif
962 main() { 
963   WinExec("",0);
964   exit(0);
965 }
966 ],
967 [have_winexec=1],
968 [have_winexec=0])
969 if test "$have_winexec" = "1"; then
970 AC_DEFINE(HAVE_WINEXEC)
971 fi
972
973 FPTOOLS_TRY_LINK_NOWARN(,[
974 #if HAVE_WINDOWS_H
975 #include <windows.h>
976 #endif
977 main() { 
978   char* dir;
979   GetModuleFileName((HMODULE)0,dir,0);
980   exit(0);
981 }
982 ],
983 [have_getmodulefilename=1],
984 [have_getmodulefilename=0])
985 if test "$have_getmodulefilename" = "1"; then
986 AC_DEFINE(HAVE_GETMODULEFILENAME)
987 fi
988
989 dnl ** check return type of signal handlers
990 dnl Foo: assumes we can use prototypes.
991 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
992 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
993 dnl [AC_TRY_COMPILE([#include <sys/types.h>
994 dnl #include <signal.h>
995 dnl #ifdef signal
996 dnl #undef signal
997 dnl #endif
998 dnl void (*signal (int, void (*)(int)))(int);
999 dnl ],
1000 dnl [int i;], 
1001 dnl ac_cv_type_signal_handler=void_int,
1002 dnl ac_cv_type_signal_handler=int_void)])
1003 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1004 dnl AC_DEFINE(VOID_INT_SIGNALS)
1005 dnl fi
1006
1007 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1008 AC_TYPE_SIGNAL
1009 if test "$ac_cv_type_signal" = void; then
1010 AC_DEFINE(VOID_INT_SIGNALS)
1011 fi
1012
1013 dnl ** check for more functions
1014 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
1015 AC_CHECK_FUNCS(strcmp)
1016 AC_CHECK_FUNCS(realpath _fullpath)  
1017 AC_CHECK_FUNCS(PBHSetVolSync macsystem)  
1018 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
1019 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
1020 AC_CHECK_FUNCS(snprintf  _snprintf )  
1021 AC_CHECK_FUNCS(popen     _popen )  
1022 AC_CHECK_FUNCS(pclose    _pclose )  
1023 AC_CHECK_FUNCS(setenv unsetenv)
1024
1025
1026 dnl ** check for specific library functions that we are interested in
1027 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
1028
1029 dnl ** Solaris2 needs additionl flag for getpw*_r()
1030 case "$TargetPlatform" in
1031   *-solaris2*)
1032     unix_SRC_HSC2HS_OPTS="-D_POSIX_PTHREAD_SEMANTICS"
1033     AC_SUBST(unix_SRC_HSC2HS_OPTS)
1034   ;;
1035 esac
1036
1037 dnl ** check whether this machine has gmp3 installed
1038 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1039   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1040     HaveLibGmp=NO; LibGmp=not-installed))
1041 AC_SUBST(HaveLibGmp)
1042 AC_SUBST(LibGmp)
1043
1044 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1045 HaveFrameworkHaskellSupport=NO
1046 if test $HostPlatform = "powerpc-apple-darwin"; then
1047  AC_MSG_CHECKING([for HaskellSupport.framework])
1048  save_libs="$LIBS"
1049  LIBS="-framework HaskellSupport"
1050  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1051  if test $HaveFrameworkHaskellSupport = YES; then
1052   AC_DEFINE(HAVE_FRAMEWORK_HASKELLSUPPORT)
1053  fi;
1054  LIBS="$save_libs"
1055  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1056 fi;
1057 AC_SUBST(HaveFrameworkHaskellSupport)
1058
1059 dnl ** check for mingwex library
1060 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1061 AC_SUBST(HaveLibMingwEx)
1062
1063 if test $HaveLibMingwEx = YES ; then
1064   AC_DEFINE(HAVE_MINGWEX)
1065 fi
1066
1067 if test "$HaveLibGmp" = "NO"; then
1068 if test "$HostArch_CPP" = "ia64"; then
1069 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
1070 fi;
1071 fi;
1072
1073 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1074 dnl    the order of these tests matters: bfd needs liberty
1075 AC_CHECK_LIB(iberty, xmalloc)
1076 AC_CHECK_LIB(bfd,    bfd_init)
1077
1078 dnl ** check for readline, for Hugs and hslibs' Readline
1079 dnl ncurses supersedes termcap and curses, but for compatibility,
1080 dnl we have to check for all...
1081 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1082   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1083     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1084       HaveLibTermcap=NO; LibTermcap=not-installed)))
1085
1086 if test $HaveLibTermcap = YES ; then
1087   LIBS="-l$LibTermcap $LIBS"
1088   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1089 fi
1090
1091 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1092   AC_DEFINE(HAVE_READLINE_LIBS,1)
1093   LibsReadline="readline $LibTermcap"
1094 else
1095   AC_DEFINE(HAVE_READLINE_LIBS,0)
1096   LibsReadline=
1097 fi
1098 AC_SUBST(LibsReadline)
1099
1100 if test "$HaveLibReadline"; then
1101   AC_CHECK_LIB(readline, rl_erase_empty_line,
1102     [AC_DEFINE(HAVE_READLINE_4, 1)],
1103     [AC_DEFINE(HAVE_READLINE_4, 0)])
1104   AC_CHECK_LIB(readline, rl_free_undo_list,
1105     [AC_DEFINE(HAVE_READLINE_4_2, 1)],
1106     [AC_DEFINE(HAVE_READLINE_4_2, 0)])
1107 else
1108   AC_DEFINE(HAVE_READLINE_4, 0)
1109   AC_DEFINE(HAVE_READLINE_4_2, 0)
1110 fi
1111
1112 dnl ** check for math library
1113 FPTOOLS_CHECK_LIBM()
1114 AC_SUBST(LIBM)
1115
1116 dnl ** check for X Window System
1117 AC_PATH_XTRA()
1118
1119 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1120 if test $GhcLibsWithHOpenGL = YES ; then
1121   if test $UseQuartzOpenGL = YES ; then
1122     dnl Take a shortcut for Mac OS X native OpenGL:
1123     dnl It's in a non-standard location, but it's always there
1124     GL_CFLAGS=
1125         GL_LIBS=
1126         GLUT_LIBS=
1127         AC_SUBST(GL_CFLAGS)
1128         AC_SUBST(GL_LIBS)
1129         AC_SUBST(GLUT_LIBS)
1130   else
1131     FPTOOLS_HAVE_OPENGL
1132   fi
1133 fi
1134
1135 dnl ################################################################
1136 dnl Check for libraries
1137 dnl ################################################################
1138
1139 dnl ** check for libdl & RTLD_NEXT
1140
1141 dnl (Mac OS X only) ... but don't check if we already have the
1142 dnl HaskellSupport.framework
1143
1144 if test $HaveFrameworkHaskellSupport = YES; then
1145     HaveLibDL=NO
1146     HaveRtldNext=NO
1147     HaveRtldLocal=YES
1148     AC_DEFINE(HAVE_RTLDLOCAL)
1149     HaveRtldGlobal=YES
1150     AC_DEFINE(HAVE_RTLDGLOBAL)
1151     HaveRtldNow=YES
1152     AC_DEFINE(HAVE_RTLDNOW)
1153     AC_SUBST(HaveLibDL)
1154     AC_SUBST(HaveRtldNext)
1155     AC_SUBST(HaveRtldLocal)
1156     AC_SUBST(HaveRtldGlobal)
1157     AC_SUBST(HaveRtldNow)
1158 else
1159     AC_CHECK_LIB(dl, dlopen, 
1160         [HaveLibDL=YES
1161          AC_DEFINE(HAVE_LIBDL)
1162          LIBS="$LIBS -ldl"], 
1163         [HaveLibDL=NO])
1164     AC_CHECK_FUNCS(dlopen)
1165     AC_SUBST(HaveLibDL)
1166
1167     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1168     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1169     AC_EGREP_CPP(yes,
1170     [
1171      #include <dlfcn.h>
1172      #ifdef RTLD_NEXT
1173             yes
1174      #endif
1175     ], [
1176       AC_MSG_RESULT(yes)
1177       AC_DEFINE(HAVE_RTLDNEXT)
1178       HaveRtldNext=YES
1179     ], [
1180       AC_MSG_RESULT(no)
1181       HaveRtldNext=NO
1182       ])    
1183     AC_SUBST(HaveRtldNext)
1184
1185     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1186     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1187     AC_EGREP_CPP(yes,
1188     [
1189      #include <dlfcn.h>
1190      #ifdef RTLD_LOCAL
1191             yes
1192      #endif
1193     ], [
1194       AC_MSG_RESULT(yes)
1195       AC_DEFINE(HAVE_RTLDLOCAL)
1196       HaveRtldLocal=YES
1197     ], [
1198       AC_MSG_RESULT(no)
1199       HaveRtldLocal=NO
1200       ])    
1201     AC_SUBST(HaveRtldLocal)
1202
1203     dnl ** RTLD_GLOBAL isn't available on openbsd
1204     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1205     AC_EGREP_CPP(yes,
1206     [
1207      #include <dlfcn.h>
1208      #ifdef RTLD_GLOBAL
1209             yes
1210      #endif
1211     ], [
1212       AC_MSG_RESULT(yes)
1213       AC_DEFINE(HAVE_RTLDGLOBAL)
1214       HaveRtldGlobal=YES
1215     ], [
1216       AC_MSG_RESULT(no)
1217       HaveRtldGlobal=NO
1218       ])    
1219     AC_SUBST(HaveRtldGlobal)
1220
1221     dnl ** RTLD_NOW isn't available on openbsd
1222     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1223     AC_EGREP_CPP(yes,
1224     [
1225      #include <dlfcn.h>
1226      #ifdef RTLD_NOW
1227             yes
1228      #endif
1229     ], [
1230       AC_MSG_RESULT(yes)
1231       AC_DEFINE(HAVE_RTLDNOW)
1232       HaveRtldNow=YES
1233     ], [
1234       AC_MSG_RESULT(no)
1235       HaveRtldNow=NO
1236       ])    
1237     AC_SUBST(HaveRtldNow)
1238 fi
1239
1240 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1241
1242 dnl ---------- usleep ----------
1243 dnl --- stolen from guile configure ---
1244 dnl --- FIXME: /usr/include/unistd.h can't be right?
1245
1246 ### On some systems usleep has no return value.  If it does have one,
1247 ### we'd like to return it; otherwise, we'll fake it.
1248 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1249   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1250                    /usr/include/unistd.h,
1251                    [cv_func_usleep_return_type=void],
1252                    [cv_func_usleep_return_type=int])])
1253 case "$cv_func_usleep_return_type" in
1254   "void" )
1255     AC_DEFINE(USLEEP_RETURNS_VOID, 1,
1256       [Define if the system headers declare usleep to return void.])
1257   ;;
1258 esac
1259
1260 dnl --------------------------------------------------
1261 dnl * test for in_addr_t
1262 dnl --------------------------------------------------
1263 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1264 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1265  [ AC_DEFINE(HAVE_IN_ADDR_T) AC_MSG_RESULT(yes) ],
1266  AC_MSG_RESULT(no))
1267
1268 dnl --------------------------------------------------
1269 dnl * test for Linux sendfile(2)
1270 dnl --------------------------------------------------
1271 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1272 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1273  [ AC_DEFINE(HAVE_LINUX_SENDFILE) AC_MSG_RESULT(yes) ],
1274  AC_MSG_RESULT(no))
1275
1276 dnl --------------------------------------------------
1277 dnl * test for BSD sendfile(2)
1278 dnl --------------------------------------------------
1279 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1280 AC_EGREP_HEADER(sendfile, sys/socket.h,
1281  [ AC_DEFINE(HAVE_BSD_SENDFILE) AC_MSG_RESULT(yes) ],
1282  AC_MSG_RESULT(no))
1283
1284 dnl --------------------------------------------------
1285 dnl * test for GTK+
1286 dnl --------------------------------------------------
1287
1288 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1289 if test "$GTK_CONFIG" != ""; then
1290    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1291         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1292     ])
1293     GTK_VERSION=$fptools_cv_gtk_version
1294 else
1295     GTK_VERSION=
1296 fi
1297
1298 case $fptools_cv_gtk_version in
1299   1.[[23]].*) ;;
1300   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1301      GTK_CONFIG=
1302      ;;
1303 esac
1304
1305 AC_SUBST(GTK_CONFIG)
1306 AC_SUBST(GTK_VERSION)
1307
1308 dnl --------------------------------------------------
1309 dnl * Miscellaneous feature tests
1310 dnl --------------------------------------------------
1311
1312 dnl ** can we get alloca?
1313 AC_FUNC_ALLOCA
1314
1315 dnl ** Working vfork?
1316 AC_FUNC_VFORK
1317
1318 dnl ** determine whether or not const works
1319 AC_C_CONST
1320
1321 dnl ** are we big endian?
1322 AC_C_BIGENDIAN
1323
1324 dnl ** check for leading underscores in symbol names
1325 FPTOOLS_UNDERSCORE
1326
1327 dnl ** check for ld, and whether ld has -x option
1328 AC_PATH_PROG(LdCmdRaw, ld)
1329 case $HostOS_CPP in
1330  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1331            ;;
1332  *) LdCmd=${LdCmdRaw}
1333     ;;
1334 esac
1335 AC_SUBST(LdCmd)
1336 FPTOOLS_LD_X
1337
1338 AC_MSG_CHECKING([for SIGPOLL])
1339 AC_EGREP_CPP(we_have_sigpoll,
1340 [#include <signal.h>
1341 #ifdef SIGPOLL
1342 we_have_sigpoll
1343 #endif
1344 ], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
1345 AC_MSG_RESULT([$haveSIGPOLL])
1346
1347 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1348 AC_EGREP_CPP(we_have_that_sysconf_thing,
1349 [
1350 #include <unistd.h>
1351 #ifdef _SC_GETGR_R_SIZE_MAX
1352 we_have_that_sysconf_thing
1353 #endif
1354 ],
1355 [AC_MSG_RESULT([yes])
1356 AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX)],
1357 [AC_MSG_RESULT([no])])
1358
1359 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1360 AC_EGREP_CPP(we_have_that_sysconf_thing,
1361 [
1362 #include <unistd.h>
1363 #ifdef _SC_GETPW_R_SIZE_MAX
1364 we_have_that_sysconf_thing
1365 #endif
1366 ],
1367 [AC_MSG_RESULT([yes])
1368 AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX)],
1369 [AC_MSG_RESULT([no])])
1370
1371 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )