[project @ 2003-08-18 15:53:51 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)
574     UseQuartzOpenGL=YES
575   fi
576 fi
577
578 AC_SUBST(GhcLibsWithHOpenGL)
579
580 dnl ** .NET interop support?
581 dnl --------------------------------------------------------------
582 AC_ARG_ENABLE(dotnet,
583 [  --enable-dotnet
584         Build .NET interop layer.
585 ],
586 [DotnetSupport=YES; AC_DEFINE(WANT_DOTNET_SUPPORT)],
587 [DotnetSupport=NO]
588 )
589 AC_SUBST(DotnetSupport)
590
591 dnl --------------------------------------------------------------
592 dnl End of configure script option section
593 dnl --------------------------------------------------------------
594
595
596 dnl --------------------------------------------------------------
597 dnl * General configuration checks
598 dnl --------------------------------------------------------------
599
600 dnl ** does #! work?
601 AC_SYS_INTERPRETER()
602
603 dnl ** look for `perl', but only in /bin on Windows
604 case $HostOS_CPP in
605 cygwin32|mingw32)
606       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
607       if test -z "$PerlCmd"; then
608          echo "You must install the version of Perl shipped with GHC"
609          echo "(or a compatible one) in /bin."
610          exit 1
611       fi
612    ;;
613 *)
614    AC_PATH_PROG(PerlCmd,perl)
615    if test -z "$PerlCmd"; then
616       echo "You must install perl before you can continue"
617       echo "Perhaps it is already installed, but not in your PATH?"
618       exit 1
619    else
620    FPTOOLS_CHECK_PERL_VERSION
621    fi
622    ;;
623 esac
624
625 dnl ** does #! path/to/perl work? (sometimes it's too long...)
626 FPTOOLS_SHEBANG_PERL
627
628 dnl ** check for Python
629 AC_PATH_PROG(PythonCmd,python)
630
631 dnl ** look for GCC and find out which version
632 dnl     Figure out which C compiler to use.  Gcc is preferred.
633 dnl     If gcc, make sure it's at least 2.1
634 dnl
635 AC_PROG_CC
636 FPTOOLS_HAVE_GCC
637 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
638
639 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
640 AC_PROG_CPP
641
642 dnl ** Without optimization some INLINE trickery fails for GHCi
643 SRC_CC_OPTS="-O"
644
645 dnl ** Try to add -mno-cygwin to the C compiler options for mingw32 targets
646 if test x"$TargetOS_CPP" = x"mingw32"; then
647   FPTOOLS_CC_FLAG(-mno-cygwin,CC_SUPPORTS_MNO_CYGWIN)
648   SRC_CC_OPTS="$CC_SUPPORTS_MNO_CYGWIN $SRC_CC_OPTS"
649   CPPFLAGS="$CC_SUPPORTS_MNO_CYGWIN $CPPFLAGS"
650 fi
651 AC_SUBST(SRC_CC_OPTS)
652
653 dnl ** figure out how to do context diffs
654 FPTOOLS_PROG_DIFF
655
656 dnl ** Find find command (for Win32's benefit)
657 FPTOOLS_FIND_FIND
658
659 dnl ** figure out how to do a BSD-ish install
660 AC_PROG_INSTALL
661
662 dnl If you can run configure, you certainly have /bin/sh
663 AC_DEFINE(HAVE_BIN_SH)
664
665 dnl ** how to invoke `ar' and `ranlib'
666 FPTOOLS_PROG_AR_AND_RANLIB
667
668 dnl ** Check to see whether ln -s works
669 AC_PROG_LN_S
670
671
672 dnl ** Find the path to sed
673 AC_PATH_PROG(SedCmd,sed)
674
675
676 dnl ** check for time command
677 AC_PATH_PROG(TimeCmd,time)
678
679 dnl ** check for tar
680 dnl   if GNU tar is named gtar, look for it first.
681 AC_PATH_PROGS(TarCmd,gtar tar,tar)
682
683 dnl ** check for gzip/compress
684 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
685
686 dnl ** check for jade/openjade & determine a working catalog
687 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
688 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl, 
689                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
690 if test -z "$Catalog"; then
691   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
692 fi
693 case $Catalog in
694    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
695         Catalog=
696         ;;
697    glafp*) 
698         case $HostOS_CPP in
699            mingw32)
700               Catalog=`cygpath -w $hardtop/$Catalog`
701               ;;
702            *) Catalog=$hardtop/$Catalog
703               ;;
704         esac
705    ;;
706 esac   
707 AC_SUBST(Catalog)
708
709 compress_nm=`basename $CompressCmd`
710 if test x"$compress_nm" = xgzip; then
711   CompressCmd="$CompressCmd -d"
712   CompressSuffix="gz"
713 else
714   CompressSuffix="Z"
715 fi
716 AC_SUBST(CompressCmd)
717 AC_SUBST(CompressSuffix)
718
719 dnl ** check for ghc-pkg command
720 changequote(, )dnl
721 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
722 changequote([, ])dnl
723 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
724    GhcPkgCmd=$ghc_pkg_guess
725    AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
726 else
727    AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
728 fi
729
730 AC_ARG_WITH(greencard,
731 [  --with-greencard=<greencard compiler>
732         Use a command different from 'green-card' to compile GreenCard files
733 ],
734 [
735 GreencardCmd=$withval;
736 FPTOOLS_GREENCARD(3.00)
737 ]
738 )
739
740 AC_ARG_ENABLE(src-tree-happy,
741 [  --enable-src-tree-happy
742         Build and use source tree (fptools/happy) version of Happy.
743 ],
744 [UseSrcTreeHappy=YES],
745 [UseSrcTreeHappy=NO]
746 )
747 dnl ** check for installed happy binary + version
748 dnl    (don't do it if we're booting from .hc files though.)
749 if test "$BootingFromHc" = "NO"; then
750 FPTOOLS_HAPPY
751 fi;
752
753 AC_ARG_ENABLE(src-tree-haddock,
754 [  --enable-src-tree-haddock
755         Build and use source tree (fptools/haddock) version of Haddock.
756 ],
757 [UseSrcTreeHaddock=YES],
758 [UseSrcTreeHaddock=NO]
759 )
760 dnl ** check for installed haddock
761 FPTOOLS_HADDOCK
762
763 AC_ARG_ENABLE(src-tree-alex,
764 [  --enable-src-tree-alex
765         Build and use source tree (fptools/alex) version of Alex.
766 ],
767 [UseSrcTreeAlex=YES],
768 [UseSrcTreeAlex=NO]
769 )
770 dnl ** check for installed alex binary + version
771 dnl    (don't do it if we're booting from .hc files though.)
772 if test "$BootingFromHc" = "NO"; then
773 FPTOOLS_ALEX
774 fi;
775
776 dnl --------------------------------------------------
777 dnl ### program checking section ends here ###
778 dnl --------------------------------------------------
779
780 dnl --------------------------------------------------
781 dnl * Platform header file and syscall feature tests
782 dnl ### checking the state of the local header files and syscalls ###
783
784 dnl ** check for full ANSI header (.h) files
785 AC_HEADER_STDC
786
787 dnl ** Enable large file support.  NB. do this before testing the type of
788 dnl    off_t, because it will affect the result of that test.
789 AC_SYS_LARGEFILE
790
791 dnl ** check for specific header (.h) files that we are interested in
792 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)
793 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
794
795 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
796 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
797
798 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
799   HaveReadlineHeaders=YES
800   AC_DEFINE(HAVE_READLINE_HEADERS,1)
801 else
802   HaveReadlineHeaders=NO
803   AC_DEFINE(HAVE_READLINE_HEADERS,0)
804 fi
805 AC_SUBST(HaveReadlineHeaders)
806
807 dnl ** check for DOS include files
808 AC_CHECK_HEADERS(dos.h conio.h io.h std.h) 
809
810 dnl ** check for Windows include files
811 AC_CHECK_HEADERS(windows.h)
812
813 dnl ** check for OpenGL include files
814 if test $UseQuartzOpenGL = YES ; then
815   AC_CHECK_HEADERS(OpenGL/gl.h)
816 else
817   AC_CHECK_HEADERS(GL/gl.h)
818 fi
819
820 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
821 AC_HEADER_TIME
822
823 dnl dynamic loading include files
824 AC_CHECK_HEADERS(dlfcn.h dl.h) 
825
826 dnl ** check for farcalloc (in bcc)
827 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
828
829 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
830 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
831
832 dnl ** check for POSIX regex
833 HavePosixRegex=NO
834 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
835 AC_SUBST(HavePosixRegex)
836
837 dnl ** how do we get a timezone name, and UTC offset ?
838 AC_STRUCT_TIMEZONE
839
840 dnl ** do we have altzone?
841 FP_ALTZONE
842
843 dnl ** does struct stat contain st_blksize?
844 AC_STRUCT_ST_BLKSIZE
845
846 dnl ** do we have long longs?
847 AC_CHECK_TYPES([long long])
848
849 dnl ** check what fields struct msghdr contains
850 FPTOOLS_MSGHDR_MSG_ACCRIGHTS
851 FPTOOLS_MSGHDR_MSG_CONTROL
852
853 dnl ** what are the sizes of various types
854 dnl    (these must come before GHC_CHECK_ALIGNMENT)
855 AC_CHECK_SIZEOF(char,               1)
856 AC_CHECK_SIZEOF(double,             8)
857 AC_CHECK_SIZEOF(float,              4)
858 AC_CHECK_SIZEOF(int,                4)
859 AC_CHECK_SIZEOF(long,               4)
860 if test "$fptools_cv_have_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 "$fptools_cv_have_long_long" = yes; then
868 AC_CHECK_SIZEOF(unsigned long long, 8)
869 fi
870 AC_CHECK_SIZEOF(unsigned short,     2)
871 AC_CHECK_SIZEOF(void *,             4)
872
873 dnl ** what are alignment constraints on various types
874 FPTOOLS_CHECK_ALIGNMENT(char)
875 FPTOOLS_CHECK_ALIGNMENT(double)
876 FPTOOLS_CHECK_ALIGNMENT(float)
877 FPTOOLS_CHECK_ALIGNMENT(int)
878 FPTOOLS_CHECK_ALIGNMENT(long)
879 if test "$fptools_cv_have_long_long" = yes; then
880 FPTOOLS_CHECK_ALIGNMENT(long long)
881 fi
882 FPTOOLS_CHECK_ALIGNMENT(short)
883 FPTOOLS_CHECK_ALIGNMENT(unsigned char)
884 FPTOOLS_CHECK_ALIGNMENT(unsigned int)
885 FPTOOLS_CHECK_ALIGNMENT(unsigned long)
886 if test "$fptools_cv_have_long_long" = yes; then
887 FPTOOLS_CHECK_ALIGNMENT(unsigned long long)
888 fi
889 FPTOOLS_CHECK_ALIGNMENT(unsigned short)
890 FPTOOLS_CHECK_ALIGNMENT(void *)
891
892 dnl ** map standard C types and ISO types to Haskell types
893 FPTOOLS_CHECK_HTYPE(char)
894 FPTOOLS_CHECK_HTYPE(signed char)
895 FPTOOLS_CHECK_HTYPE(unsigned char)
896 FPTOOLS_CHECK_HTYPE(short)
897 FPTOOLS_CHECK_HTYPE(unsigned short)
898 FPTOOLS_CHECK_HTYPE(int)
899 FPTOOLS_CHECK_HTYPE(unsigned int)
900 FPTOOLS_CHECK_HTYPE(long)
901 FPTOOLS_CHECK_HTYPE(unsigned long)
902 if test "$fptools_cv_have_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 ** determine whether ANSI-function prototypes work?
1322 AC_C_PROTOTYPES          
1323
1324 dnl ** are we big endian?
1325 AC_C_BIGENDIAN
1326
1327 dnl ** check for leading underscores in symbol names
1328 FPTOOLS_UNDERSCORE
1329
1330 dnl ** check for ld, and whether ld has -x option
1331 AC_PATH_PROG(LdCmdRaw, ld)
1332 case $HostOS_CPP in
1333  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1334            ;;
1335  *) LdCmd=${LdCmdRaw}
1336     ;;
1337 esac
1338 AC_SUBST(LdCmd)
1339 FPTOOLS_LD_X
1340
1341 AC_MSG_CHECKING([for SIGPOLL])
1342 AC_EGREP_CPP(we_have_sigpoll,
1343 [#include <signal.h>
1344 #ifdef SIGPOLL
1345 we_have_sigpoll
1346 #endif
1347 ], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
1348 AC_MSG_RESULT([$haveSIGPOLL])
1349
1350 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1351 AC_EGREP_CPP(we_have_that_sysconf_thing,
1352 [
1353 #include <unistd.h>
1354 #ifdef _SC_GETGR_R_SIZE_MAX
1355 we_have_that_sysconf_thing
1356 #endif
1357 ],
1358 [AC_MSG_RESULT([yes])
1359 AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX)],
1360 [AC_MSG_RESULT([no])])
1361
1362 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1363 AC_EGREP_CPP(we_have_that_sysconf_thing,
1364 [
1365 #include <unistd.h>
1366 #ifdef _SC_GETPW_R_SIZE_MAX
1367 we_have_that_sysconf_thing
1368 #endif
1369 ],
1370 [AC_MSG_RESULT([yes])
1371 AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX)],
1372 [AC_MSG_RESULT([no])])
1373
1374 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )