[project @ 2004-11-20 15:12:26 by panne]
[ghc.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, 1994-2004
7 #
8 # Configure script template for the Glasgow functional programming tools
9 #
10 # Process with 'autoreconf' 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 AC_INIT([fptools build system], [1.0], [cvs-fptools@haskell.org], [fptools])
17
18 # First off, a distrib sanity check..
19 AC_CONFIG_SRCDIR([mk/config.mk.in])
20
21 dnl * We require autoconf version 2.52
22 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
23 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
24 AC_PREREQ([2.52])
25
26 dnl * Declare subdirectories that have a private configure script
27 dnl
28 dnl After the toplevel configuration is complete, the script will recurse into
29 dnl these subdirectories if they exist. The use of a cache file makes repeated
30 dnl checks cheap.
31 AC_CONFIG_SUBDIRS([ghc libraries])
32
33 # -------------------------------------------------------------------------
34 # Prepare to generate the following header files
35 #
36 #
37 AC_CONFIG_HEADER(mk/config.h)
38
39 # No, semi-sadly, we don't do `--srcdir'...
40 if test x"$srcdir" != 'x.' ; then
41     echo "This configuration does not support the \`--srcdir' option.."
42     exit 1
43 fi
44
45 dnl--------------------------------------------------------------------
46 dnl * Choose host(/target/build) platform
47 dnl--------------------------------------------------------------------
48
49 dnl Guess host/target/build platform(s) if necessary.
50 AC_CANONICAL_TARGET
51
52 # "$host" defaults to "$target"
53 if test "x$host" = xNONE ; then
54     host=$target
55 fi
56
57 dnl ** canonicalize platform names
58 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
59 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
60 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
61
62 if test x"$TargetPlatform" != x"$HostPlatform" ; then
63     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
64     exit 1
65 fi
66
67 exeext=''
68 #
69 # The following will be more difficult when we *are* cross-compiling.
70 # Suitable names to slam in *_CPP are in platform.h.in.
71 # We also record the architecture, vendor, and operating system (OS)
72 # separately.
73 case $HostPlatform in
74 alpha*-dec-osf[[12]]*)
75         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
76         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
77         BuildPlatform=alpha-dec-osf1  # hack
78         HostPlatform_CPP='alpha_dec_osf1'
79         HostArch_CPP='alpha'
80         HostVendor_CPP='dec'
81         HostOS_CPP='osf1'
82         ;;
83 alpha*-dec-osf[[345]]*)
84         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
85         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
86         BuildPlatform=alpha-dec-osf3  # hack
87         HostPlatform_CPP='alpha_dec_osf3'
88         HostArch_CPP='alpha'
89         HostVendor_CPP='dec'
90         HostOS_CPP='osf3'
91         ;;
92 alpha*-unknown-linux*)
93         HostPlatform=alpha-unknown-linux
94         TargetPlatform=alpha-unknown-linux
95         BuildPlatform=alpha-unknown-linux
96         HostPlatform_CPP='alpha_unknown_linux'
97         HostArch_CPP='alpha'
98         HostVendor_CPP='unknown'
99         HostOS_CPP='linux'
100         ;;
101 alpha*-unknown-freebsd*)
102         HostPlatform=alpha-unknown-freebsd
103         TargetPlatform=alpha-unknown-freebsd
104         BuildPlatform=alpha-unknown-freebsd
105         HostPlatform_CPP='alpha_unknown_freebsd'
106         HostArch_CPP='alpha'
107         HostVendor_CPP='unknown'
108         HostOS_CPP='freebsd'
109         ;;
110 alpha*-unknown-openbsd*)
111         HostPlatform=alpha-unknown-openbsd
112         TargetPlatform=alpha-unknown-openbsd
113         BuildPlatform=alpha-unknown-openbsd
114         HostPlatform_CPP='alpha_unknown_openbsd'
115         HostArch_CPP='alpha'
116         HostVendor_CPP='unknown'
117         HostOS_CPP='openbsd'
118         ;;
119 amd64-*-openbsd*|x86_64-*-openbsd*)
120         HostPlatform=x86_64-unknown-openbsd
121         TargetPlatform=x86_64-unknown-openbsd
122         BuildPlatform=x86_64-unknown-openbsd
123         HostPlatform_CPP='x86_64_unknown_openbsd'
124         HostArch_CPP='x86_64'
125         HostVendor_CPP='unknown'
126         HostOS_CPP='openbsd'
127         ;;
128 arm*-linux*)
129         HostPlatform=arm-unknown-linux # hack again
130         TargetPlatform=arm-unknown-linux
131         BuildPlatform=arm-unknown-linux
132         HostPlatform_CPP='arm_unknown_linux'                 
133         HostArch_CPP='arm'
134         HostVendor_CPP='unknown'
135         HostOS_CPP='linux'
136         ;;
137 arm*-openbsd*)
138         HostPlatform=arm-unknown-openbsd
139         TargetPlatform=arm-unknown-openbsd
140         BuildPlatform=arm-unknown-openbsd
141         HostPlatform_CPP='arm_unknown_openbsd'                 
142         HostArch_CPP='arm'
143         HostVendor_CPP='unknown'
144         HostOS_CPP='openbsd'
145         ;;
146 hppa*-*-linux*)
147         HostPlatform=hppa-unknown-linux # hack again
148         TargetPlatform=hppa-unknown-linux
149         BuildPlatform=hppa-unknown-linux
150         HostPlatform_CPP='hppa_unknown_linux'                
151         HostArch_CPP='hppa'
152         HostVendor_CPP='unknown'                             
153         HostOS_CPP='linux'
154         ;;
155 hppa*-*-openbsd*)
156         HostPlatform=hppa-unknown-openbsd # hack again
157         TargetPlatform=hppa-unknown-openbsd
158         BuildPlatform=hppa-unknown-openbsd
159         HostPlatform_CPP='hppa_unknown_openbsd'                
160         HostArch_CPP='hppa'
161         HostVendor_CPP='unknown'                             
162         HostOS_CPP='openbsd'
163         ;;
164 hppa1.1-hp-hpux*)
165         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
166         TargetPlatform=hppa1.1-hp-hpux
167         BuildPlatform=hppa1.1-hp-hpux
168         HostPlatform_CPP='hppa1_1_hp_hpux'
169         HostArch_CPP='hppa1_1'
170         HostVendor_CPP='hp'
171         HostOS_CPP='hpux'
172         ;;
173 i[[3456]]86-*-linuxaout*)
174         HostPlatform=i386-unknown-linuxaout   # hack again
175         TargetPlatform=i386-unknown-linuxaout
176         BuildPlatform=i386-unknown-linuxaout
177         HostPlatform_CPP='i386_unknown_linuxaout'
178         HostArch_CPP='i386'
179         HostVendor_CPP='unknown'
180         HostOS_CPP='linuxaout'
181         ;;
182 i[[3456]]86-*-linux*)
183         HostPlatform=i386-unknown-linux # hack again
184         TargetPlatform=i386-unknown-linux
185         BuildPlatform=i386-unknown-linux
186         HostPlatform_CPP='i386_unknown_linux'
187         HostArch_CPP='i386'
188         HostVendor_CPP='unknown'
189         HostOS_CPP='linux'
190         ;;
191 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
192         HostPlatform=i386-unknown-freebsd # hack again
193         TargetPlatform=i386-unknown-freebsd
194         BuildPlatform=i386-unknown-freebsd
195         HostPlatform_CPP='i386_unknown_freebsd'
196         HostArch_CPP='i386'
197         HostVendor_CPP='unknown'
198         HostOS_CPP='freebsd'
199         ;;
200 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
201         HostPlatform=i386-unknown-freebsd2 # hack again
202         TargetPlatform=i386-unknown-freebsd2
203         BuildPlatform=i386-unknown-freebsd2
204         HostPlatform_CPP='i386_unknown_freebsd2'
205         HostArch_CPP='i386'
206         HostVendor_CPP='unknown'
207         HostOS_CPP='freebsd2'
208         ;;
209 i[[3456]]86-*-netbsd*)
210         HostPlatform=i386-unknown-netbsd # hack again
211         TargetPlatform=i386-unknown-netbsd
212         BuildPlatform=i386-unknown-netbsd
213         HostPlatform_CPP='i386_unknown_netbsd'
214         HostArch_CPP='i386'
215         HostVendor_CPP='unknown'
216         HostOS_CPP='netbsd'
217         ;;
218 i[[3456]]86-*-openbsd*)
219         HostPlatform=i386-unknown-openbsd # hack again
220         TargetPlatform=i386-unknown-openbsd
221         BuildPlatform=i386-unknown-openbsd
222         HostPlatform_CPP='i386_unknown_openbsd'
223         HostArch_CPP='i386'
224         HostVendor_CPP='unknown'
225         HostOS_CPP='openbsd'
226         ;;
227 i[[3456]]86-*-solaris2*)
228         HostPlatform=i386-unknown-solaris2 # hack again
229         TargetPlatform=i386-unknown-solaris2
230         BuildPlatform=i386-unknown-solaris2
231         HostPlatform_CPP='i386_unknown_solaris2'
232         HostArch_CPP='i386'
233         HostVendor_CPP='unknown'
234         HostOS_CPP='solaris2'
235         ;;
236 i[[3456]]86-*-cygwin*)
237         HostPlatform=i386-unknown-cygwin32 # hack again
238         TargetPlatform=i386-unknown-cygwin32
239         BuildPlatform=i386-unknown-cygwin32
240         HostPlatform_CPP='i386_unknown_cygwin32'
241         HostArch_CPP='i386'
242         HostVendor_CPP='unknown'
243         HostOS_CPP='cygwin32'
244         exeext='.exe'
245         ;;
246 i[[3456]]86-*-mingw32*)
247         HostPlatform=i386-unknown-mingw32 # hack again
248         TargetPlatform=i386-unknown-mingw32
249         BuildPlatform=i386-unknown-mingw32
250         HostPlatform_CPP='i386_unknown_mingw32'
251         HostArch_CPP='i386'
252         HostVendor_CPP='unknown'
253         HostOS_CPP='mingw32'
254         exeext='.exe'
255         ;;
256 ia64-*-linux*)
257         HostPlatform=ia64-unknown-linux # hack again
258         TargetPlatform=ia64-unknown-linux
259         BuildPlatform=ia64-unknown-linux
260         HostPlatform_CPP='ia64_unknown_linux'
261         HostArch_CPP='ia64'
262         HostVendor_CPP='unknown'
263         HostOS_CPP='linux'
264         ;;
265 x86_64-*-linux*)
266         HostPlatform=x86_64-unknown-linux
267         TargetPlatform=x86_64-unknown-linux
268         BuildPlatform=x86_64-unknown-linux
269         HostPlatform_CPP='x86_64_unknown_linux'
270         HostArch_CPP='x86_64'
271         HostVendor_CPP='unknown'
272         HostOS_CPP='linux'
273         ;;
274 m68k-*-linux*)
275         HostPlatform=m68k-unknown-linux # hack again
276         TargetPlatform=m68k-unknown-linux                    
277         BuildPlatform=m68k-unknown-linux
278         HostPlatform_CPP='m68k_unknown_linux'
279         HostArch_CPP='m68k'
280         HostVendor_CPP='unknown'
281         HostOS_CPP='linux'
282         ;;
283 m68k-next-nextstep2)
284         HostPlatform_CPP='m68k_next_nextstep2'
285         HostArch_CPP='m68k'
286         HostVendor_CPP='next'
287         HostOS_CPP='nextstep2'
288         ;;
289 m68k-next-nextstep3)
290         HostPlatform_CPP='m68k_next_nextstep3'
291         HostArch_CPP='m68k'
292         HostVendor_CPP='next'
293         HostOS_CPP='nextstep3'
294         ;;
295 i[[3456]]86-next-nextstep3)
296         HostPlatform=i386-next-nextstep3 # hack again
297         TargetPlatform=i386-next-nextstep3
298         BuildPlatform=i386-next-nextstep3
299         HostPlatform_CPP='i386_next_nextstep3'
300         HostArch_CPP='i386'
301         HostVendor_CPP='next'
302         HostOS_CPP='nextstep3'
303         ;;
304 m68k-*-openbsd*)
305         HostPlatform=m68k-unknown-openbsd
306         TargetPlatform=m68k-unknown-openbsd
307         BuildPlatform=m68k-unknown-openbsd
308         HostPlatform_CPP='m68k_unknown_openbsd'
309         HostArch_CPP='m68k'
310         HostVendor_CPP='unknown'
311         HostOS_CPP='openbsd'
312         ;;
313 m68k-*-netbsd*)
314         HostPlatform=m68k-unknown-netbsd
315         TargetPlatform=m68k-unknown-netbsd
316         BuildPlatform=m68k-unknown-netbsd
317         HostPlatform_CPP='m68k_unknown_netbsd'
318         HostArch_CPP='m68k'
319         HostVendor_CPP='unknown'
320         HostOS_CPP='netbsd'
321         ;;
322 m68k-sun-sunos4*)
323         HostPlatform=m68k-sun-sunos4
324         TargetPlatform=m68k-sun-sunos4 #hack
325         BuildPlatform=m68k-sun-sunos4 #hack
326         HostPlatform_CPP='m68k_sun_sunos4'
327         HostArch_CPP='m68k'
328         HostVendor_CPP='sun'
329         HostOS_CPP='sunos4'
330         ;;
331 m88k-*-openbsd*)
332         HostPlatform=m88k-unknown-openbsd
333         TargetPlatform=m88k-unknown-openbsd
334         BuildPlatform=m88k-unknown-openbsd
335         HostPlatform_CPP='m88k_unknown_openbsd'
336         HostArch_CPP='m88k'
337         HostVendor_CPP='unknown'
338         HostOS_CPP='openbsd'
339         ;;
340 mips-*-linux*)
341         HostPlatform=mips-unknown-linux # hack again
342         TargetPlatform=mips-unknown-linux
343         BuildPlatform=mips-unknown-linux
344         HostPlatform_CPP='mips_unknown_linux'
345         HostArch_CPP='mips'
346         HostVendor_CPP='unknown'
347         HostOS_CPP='linux'
348         ;;
349 mips-dec-ultrix*)
350         HostPlatform_CPP='mips_dec_ultrix'
351         HostArch_CPP='mipsel'   # NB a little different
352         HostVendor_CPP='dec'
353         HostOS_CPP='ultrix'
354         ;;
355 mips-sgi-irix*)
356         HostPlatform=mips-sgi-irix
357         TargetPlatform=mips-sgi-irix #hack
358         BuildPlatform=mips-sgi-irix #hack
359         HostPlatform_CPP='mips_sgi_irix'
360         HostArch_CPP='mipseb'   # NB a little different
361         HostVendor_CPP='sgi'
362         HostOS_CPP='irix'
363         ;;
364 rs6000-ibm-aix*)
365         HostPlatform=rs6000-ibm-aix
366         TargetPlatform=rs6000-ibm-aix #hack
367         BuildPlatform=rs6000-ibm-aix #hack
368         HostPlatform_CPP='rs6000_ibm_aix'
369         HostArch_CPP='rs6000'
370         HostVendor_CPP='ibm'
371         HostOS_CPP='aix'
372         ;;
373 powerpc-ibm-aix*)
374         HostPlatform=powerpc-ibm-aix
375         TargetPlatform=powerpc-ibm-aix #hack
376         BuildPlatform=powerpc-ibm-aix #hack
377         HostPlatform_CPP='powerpc_ibm_aix'
378         HostArch_CPP='powerpc'
379         HostVendor_CPP='ibm'
380         HostOS_CPP='aix'
381         ;;
382 powerpc-apple-darwin*)
383         HostPlatform=powerpc-apple-darwin
384         TargetPlatform=powerpc-apple-darwin #hack
385         BuildPlatform=powerpc-apple-darwin #hack
386         HostPlatform_CPP='powerpc_apple_darwin'
387         HostArch_CPP='powerpc'
388         HostVendor_CPP='apple'
389         HostOS_CPP='darwin'
390         ;;
391 powerpc-unknown-linux*)
392         HostPlatform=powerpc-unknown-linux
393         TargetPlatform=powerpc-unknown-linux
394         BuildPlatform=powerpc-unknown-linux
395         HostPlatform_CPP='powerpc_unknown_linux'
396         HostArch_CPP='powerpc'
397         HostVendor_CPP='unknown'
398         HostOS_CPP='linux'
399         ;;
400 powerpc-unknown-openbsd*)
401         HostPlatform=powerpc-unknown-openbsd
402         TargetPlatform=powerpc-unknown-openbsd
403         BuildPlatform=powerpc-unknown-openbsd
404         HostPlatform_CPP='powerpc_unknown_openbsd'
405         HostArch_CPP='powerpc'
406         HostVendor_CPP='unknown'
407         HostOS_CPP='openbsd'
408         ;;
409 powerpc64-unknown-linux*)
410         HostPlatform=powerpc64-unknown-linux
411         TargetPlatform=powerpc64-unknown-linux
412         BuildPlatform=powerpc64-unknown-linux
413         HostPlatform_CPP='powerpc64_unknown_linux'
414         HostArch_CPP='powerpc64'
415         HostVendor_CPP='unknown'
416         HostOS_CPP='linux'
417         ;;
418                                                                 
419 s390-ibm-linux*)
420        HostPlatform=s390-ibm-linux
421        TargetPlatform=s390-ibm-linux #hack
422        BuildPlatform=s390-ibm-linux #hack
423         HostPlatform_CPP='s390_ibm_linux'
424         HostArch_CPP='s390'
425         HostVendor_CPP='ibm'
426         HostOS_CPP='linux'
427         ;;
428 sparc-sun-sunos4*)
429         HostPlatform=sparc-sun-sunos4
430         TargetPlatform=sparc-sun-sunos4 #hack
431         BuildPlatform=sparc-sun-sunos4 #hack
432         HostPlatform_CPP='sparc_sun_sunos4'
433         HostArch_CPP='sparc'
434         HostVendor_CPP='sun'
435         HostOS_CPP='sunos4'
436         ;;
437 sparc-sun-solaris2*)
438         HostPlatform=sparc-sun-solaris2
439         TargetPlatform=sparc-sun-solaris2 #hack
440         BuildPlatform=sparc-sun-solaris2 #hack
441         HostPlatform_CPP='sparc_sun_solaris2'
442         HostArch_CPP='sparc'
443         HostVendor_CPP='sun'
444         HostOS_CPP='solaris2'
445         ;;
446 sparc*-linux*)
447         HostPlatform=sparc-unknown-linux
448         TargetPlatform=sparc-unknown-linux
449         BuildPlatform=sparc-unknown-linux
450         HostPlatform_CPP='sparc_unknown_linux'
451         HostArch_CPP='sparc'
452         HostVendor_CPP='unknown'
453         HostOS_CPP='linux'
454         ;;
455 sparc-*-openbsd*)
456         HostPlatform=sparc-unknown-openbsd
457         TargetPlatform=sparc-unknown-openbsd
458         BuildPlatform=sparc-unknown-openbsd
459         HostPlatform_CPP='sparc_unknown_openbsd'
460         HostArch_CPP='sparc'
461         HostVendor_CPP='unknown'
462         HostOS_CPP='openbsd'
463         ;;
464 sparc64-*-openbsd*)
465         HostPlatform=sparc64-unknown-openbsd
466         TargetPlatform=sparc64-unknown-openbsd
467         BuildPlatform=sparc64-unknown-openbsd
468         HostPlatform_CPP='sparc64_unknown_openbsd'
469         HostArch_CPP='sparc64'
470         HostVendor_CPP='unknown'
471         HostOS_CPP='openbsd'
472         ;;
473 vax-*-openbsd*)
474         HostPlatform=vax-unknown-openbsd
475         TargetPlatform=vax-unknown-openbsd
476         BuildPlatform=vax-unknown-openbsd
477         HostPlatform_CPP='vax_unknown_openbsd'
478         HostArch_CPP='vax'
479         HostVendor_CPP='unknown'
480         HostOS_CPP='openbsd'
481         ;;
482 *)
483         echo "Unrecognised platform: $HostPlatform"
484         exit 1
485         ;;
486 esac
487 echo "Canonicalised to: $HostPlatform"
488 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
489 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
490
491 BuildPlatform_CPP=$HostPlatform_CPP
492 TargetPlatform_CPP=$HostPlatform_CPP
493 BuildArch_CPP=$HostArch_CPP
494 TargetArch_CPP=$HostArch_CPP
495 BuildOS_CPP=$HostOS_CPP
496 HostOS_Full=$host_os
497 TargetOS_CPP=$HostOS_CPP
498 BuildVendor_CPP=$HostVendor_CPP
499 TargetVendor_CPP=$HostVendor_CPP
500
501 AC_SUBST(BuildPlatform)
502 AC_SUBST(HostPlatform)
503 AC_SUBST(TargetPlatform)
504 AC_SUBST(HostPlatform_CPP)
505 AC_SUBST(BuildPlatform_CPP)
506 AC_SUBST(TargetPlatform_CPP)
507
508 AC_SUBST(HostArch_CPP)
509 AC_SUBST(BuildArch_CPP)
510 AC_SUBST(TargetArch_CPP)
511
512 AC_SUBST(HostOS_CPP)
513 AC_SUBST(HostOS_Full)
514 AC_SUBST(BuildOS_CPP)
515 AC_SUBST(TargetOS_CPP)
516
517 AC_SUBST(HostVendor_CPP)
518 AC_SUBST(BuildVendor_CPP)
519 AC_SUBST(TargetVendor_CPP)
520
521 AC_SUBST(exeext)
522
523 dnl --------------------------------------------------------------
524 dnl * Calculate absolute path to build tree
525 dnl --------------------------------------------------------------
526
527 AC_MSG_CHECKING(for path to top of build tree)
528
529 hardtop=`pwd`
530
531 dnl Remove common automounter nonsense
532 dnl
533 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
534
535 dnl Find 'hardtop_plat', the native format for 'hardtop' 
536 dnl (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
537 dnl
538 dnl Note OSTYPE: On Cygwin we need to use 'cygpath' to convert /cygdrive/c/foo to c:/foo
539 dnl              but we must not do that if we aren't building using Cygwin (notably msys), 
540 dnl              because cygpath doesn't exist.  It seems that 'bash' sets OSTYPE to 'cygwin' 
541 dnl              or 'msys' respectively, but cygwin's 'sh' does not.  So we hackily assume
542 dnl              that if the shell hasn't set it to 'msys' then we must be in Cygwin.  Sigh.
543 dnl
544 dnl              The Right Thing is probably to test $BuildPlatform instead, but we are sloppy 
545 dnl              about setting that correctly at the moment, so we just work around for now.
546 dnl
547 dnl              The quotes round "$(OSTYPE)" are essential, for the Cygwin-sh case where OSTYPE
548 dnl              is not set.
549 case $HostPlatform in
550   i386-unknown-mingw32 | i386-unknown-cygwin32)
551         if test "${OSTYPE}" != "msys" 
552           then
553             # convert $hardtop to a path that mingw will understand too
554             cyghardtop=${hardtop}
555             hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
556             hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
557           else
558             hardtop_plat=${hardtop}
559         fi
560         ;;
561   *)
562         hardtop_plat=${hardtop}
563         ;;
564 esac
565 AC_SUBST(hardtop)
566 AC_SUBST(hardtop_plat)
567
568 AC_MSG_RESULT(${hardtop})
569
570 dnl --------------------------------------------------------------
571 dnl * Project specific configuration options
572 dnl --------------------------------------------------------------
573 dnl What follows is a bunch of options that can either be configured
574 dnl through command line options to the configure script or by
575 dnl supplying defns in the build tree's mk/build.mk. Having the option to
576 dnl use either is considered a Feature.
577
578 dnl ** What command to use to compile compiler sources ?
579 dnl --------------------------------------------------------------
580
581 AC_ARG_WITH(ghc,
582 [AC_HELP_STRING([--with-ghc=ARG],
583         [Use ARG as the path to GHC  [default=autodetect]])],
584 [ WithGhc="$withval" ],
585
586   if test "$GHC" = ""; then
587     AC_PATH_PROG(GHC,ghc)
588   fi
589   WithGhc=$GHC
590 ])
591 AC_SUBST(WithGhc)
592
593 AC_ARG_WITH(hc,
594 [AC_HELP_STRING([--with-hc=ARG],
595         [Use ARG as the path to the compiler for compiling ordinary
596          Haskell code  (default= value of --with-ghc)])],
597 [WithHc="$withval"],
598 [WithHc=$WithGhc]
599 )
600 AC_SUBST(WithHc)
601
602 if test "$WithGhc" != ""; then
603   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
604   AC_SUBST(GhcVersion)dnl
605   AC_SUBST(GhcMajVersion)dnl
606   AC_SUBST(GhcMinVersion)dnl
607   AC_SUBST(GhcPatchLevel)dnl
608 fi
609
610 AC_PATH_PROGS(NHC,nhc nhc98)
611 AC_PATH_PROG(HBC,hbc)
612
613 dnl ** Which gcc to use?
614 dnl --------------------------------------------------------------
615 AC_ARG_WITH(gcc,
616 [AC_HELP_STRING([--with-gcc=ARG],
617         [Use ARG as the path to GCC  [default=autodetect]])],
618 [WhatGccIsCalled="$withval"
619  if test "x$HostPlatform" = "xi386-unknown-mingw32"
620     then
621        if test "${OSTYPE}" != "msys"
622          then
623          # Canonicalise to <drive>:/path/to/gcc
624          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
625        fi
626  fi;
627  CC="$withval"],
628 [WhatGccIsCalled="gcc"]
629 )
630 AC_SUBST(WhatGccIsCalled)
631
632 dnl ** Booting from .hc files?
633 dnl --------------------------------------------------------------
634 AC_ARG_ENABLE(hc-boot,
635 [AC_HELP_STRING([--enable-hc-boot],
636 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
637  (This option is mostly of interest to porters.) [default=no]])],
638 [ if test x"$enableval" = x"yes"; then
639         BootingFromHc=YES
640   else
641         BootingFromHc=NO
642   fi
643 ],
644 [BootingFromHc=NO]
645 )
646 AC_SUBST(BootingFromHc)
647
648 dnl ** Booting from unregisterised .hc files?
649 dnl --------------------------------------------------------------
650 AC_ARG_ENABLE(hc-boot-unregisterised,
651 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
652 [ With --enable-hc-boot, treat the intermediate .hc files as
653  unregisterised rather than registerised code.
654  (This option is mostly of interest to porters.) [default=no]])],
655 [ if test x"$enableval" = x"yes"; then
656         BootingFromUnregisterisedHc=YES
657   else
658         BootingFromUnregisterisedHc=NO
659   fi
660 ],
661 [BootingFromUnregisterisedHc=NO]
662 )
663 AC_SUBST(BootingFromUnregisterisedHc)
664
665 if test "$BootingFromHc" = "NO"; then
666 if test "$BootingFromUnregisterisedHc" = "YES"; then
667 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
668 fi;
669 fi;
670
671 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
672 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
673 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
674 fi;
675
676 dnl ** --enable-threaded-rts (not used any more)
677 dnl --------------------------------------------------------------
678 AC_ARG_ENABLE(threaded-rts,
679 [AC_HELP_STRING([--enable-threaded-rts],
680 [DEPRECATED (backwards compatibility only). [default=no]])],
681 [ if test x"$enableval" = x"yes"; then
682         ThreadedRts=YES
683   else
684         ThreadedRts=NO
685   fi
686 ],
687 [ThreadedRts=NO]
688 )
689 AC_SUBST(ThreadedRts)
690
691 dnl ** Enable the construction of Win32 DLLs?
692 dnl --------------------------------------------------------------
693 dnl
694 dnl [ The ability to build the RTS and libraries as separate DLLs used
695 dnl   to be supported, but isn't currently (updates to the RTS, compiler 
696 dnl   and build system would be required to bring it back again.)
697 dnl   Hence, exposing it as an option is false advertisement, so better
698 dnl   disable it to avoid confusion (but leave it commented-out rather
699 dnl   than removed in order to remind ourselves to bring back the 
700 dnl   feature at some stage.) ]
701 dnl
702 dnl AC_ARG_ENABLE(win32-dlls,
703 dnl [  --enable-win32-dlls
704 dnl         If on a Win32 platform running mingw32/cygwin, enable the
705 dnl     construction of DLLs containing ghc-compiled code.
706 dnl ],
707 dnl [
708 dnl case $HostOS_CPP in
709 dnl cygwin32) ;;
710 dnl mingw32)  ;;
711 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
712 dnl       exit 1
713 dnl       ;;
714 dnl esac
715 dnl EnableWin32DLLs=YES
716 dnl ],
717 dnl [EnableWin32DLLs=NO]
718 dnl )
719 dnl AC_SUBST(EnableWin32DLLs)
720 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
721 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
722 dnl fi
723
724 dnl ** Enable the building of the ObjectIO?
725 dnl --------------------------------------------------------------
726 AC_ARG_ENABLE(objectio,
727 [AC_HELP_STRING([--enable-objectio],
728 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
729 [ if test x"$enableval" = x"yes"; then
730         GhcLibsWithObjectIO=YES
731   else
732         GhcLibsWithObjectIO=NO
733   fi
734 ],
735 [GhcLibsWithObjectIO=NO]
736 )
737 AC_SUBST(GhcLibsWithObjectIO)
738
739 dnl ** Enable the building of the OpenAL binding?
740 dnl --------------------------------------------------------------
741 AC_ARG_ENABLE([openal],
742   AC_HELP_STRING([--enable-openal],
743                  [Build OpenAL binding [[default=autodetect]]]),
744   [ if test x"$enableval" = x"yes"; then
745         GhcLibsWithOpenAL=YES
746     else
747         GhcLibsWithOpenAL=NO
748     fi
749   ],
750   [GhcLibsWithOpenAL=YES])
751
752 AC_SUBST([GhcLibsWithOpenAL])
753
754 dnl ** .NET interop support?
755 dnl --------------------------------------------------------------
756 AC_ARG_ENABLE(dotnet,
757 [AC_HELP_STRING([--enable-dotnet],
758 [Build .NET interop layer. [default=no]])],
759 [ if test x"$enableval" = x"yes"; then
760         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
761   else 
762         DotnetSupport=NO
763   fi],
764 [DotnetSupport=NO]
765 )
766 AC_SUBST(DotnetSupport)
767
768 dnl --------------------------------------------------------------
769 dnl End of configure script option section
770 dnl --------------------------------------------------------------
771
772
773 dnl --------------------------------------------------------------
774 dnl * General configuration checks
775 dnl --------------------------------------------------------------
776
777 dnl ** Can the unix package be built?
778 dnl --------------------------------------------------------------
779
780 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
781    GhcLibsWithUnix=NO
782 else
783    GhcLibsWithUnix=YES
784 fi
785 AC_SUBST([GhcLibsWithUnix])
786
787 dnl ** does #! work?
788 AC_SYS_INTERPRETER()
789
790 dnl ** look for `perl', but only in /bin on Windows
791 case $HostOS_CPP in
792 cygwin32|mingw32)
793       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
794       if test -z "$PerlCmd"; then
795          echo "You must install the version of Perl shipped with GHC"
796          echo "(or a compatible one) in /bin."
797          exit 1
798       fi
799    ;;
800 *)
801    AC_PATH_PROG(PerlCmd,perl)
802    if test -z "$PerlCmd"; then
803       echo "You must install perl before you can continue"
804       echo "Perhaps it is already installed, but not in your PATH?"
805       exit 1
806    else
807    FPTOOLS_CHECK_PERL_VERSION
808    fi
809    ;;
810 esac
811
812 dnl ** does #! path/to/perl work? (sometimes it's too long...)
813 FPTOOLS_SHEBANG_PERL
814
815 dnl ** check for Python
816 AC_PATH_PROG(PythonCmd,python)
817
818 dnl ** look for GCC and find out which version
819 dnl     Figure out which C compiler to use.  Gcc is preferred.
820 dnl     If gcc, make sure it's at least 2.1
821 dnl
822 AC_PROG_CC
823 FPTOOLS_HAVE_GCC
824 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
825
826 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
827 AC_PROG_CPP
828
829 dnl ** Without optimization some INLINE trickery fails for GHCi
830 SRC_CC_OPTS="-O"
831
832 dnl ** Try to add -mno-cygwin to the C compiler options
833 FP_CHECK_FLAG([-mno-cygwin], [
834 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
835 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
836 AC_SUBST(SRC_CC_OPTS)
837
838 dnl ** figure out how to do context diffs
839 FP_PROG_CONTEXT_DIFF
840
841 dnl ** Find find command (for Win32's benefit)
842 FP_PROG_FIND
843
844 dnl ** figure out how to do a BSD-ish install
845 AC_PROG_INSTALL
846
847 dnl If you can run configure, you certainly have /bin/sh
848 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
849
850 dnl ** how to invoke `ar' and `ranlib'
851 FP_PROG_AR_NEEDS_RANLIB
852 FP_PROG_AR_SUPPORTS_INPUT
853
854 dnl ** Check to see whether ln -s works
855 AC_PROG_LN_S
856
857
858 dnl ** Find the path to sed
859 AC_PATH_PROG(SedCmd,sed)
860
861
862 dnl ** check for time command
863 AC_PATH_PROG(TimeCmd,time)
864
865 dnl ** check for tar
866 dnl   if GNU tar is named gtar, look for it first.
867 AC_PATH_PROGS(TarCmd,gtar tar,tar)
868
869 dnl ** check for DocBook toolchain
870 FP_CHECK_DOCBOOK_DTD
871 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl])
872 FP_PROG_FO_PROCESSOR
873
874 dnl ** check for ghc-pkg command
875 FP_PROG_GHC_PKG
876
877 AC_ARG_WITH(greencard,
878 [AC_HELP_STRING([--with-greencard=ARG],
879         [Use ARG as the path to greencard  [default=autodetct]])],
880 [
881 GreenCardCmd=$withval;
882 FPTOOLS_GREENCARD(3.00)
883 ]
884 )
885
886 AC_ARG_ENABLE(src-tree-happy,
887 [AC_HELP_STRING([--enable-src-tree-happy],
888         [Build and use source tree (fptools/happy) version of Happy. 
889          [default=autodetect]])],
890 [ if test x"$enableval" = x"yes"; then
891         UseSrcTreeHappy=YES
892   else
893         UseSrcTreeHappy=NO
894   fi
895 ],
896 [UseSrcTreeHappy=NO]
897 )
898 dnl ** check for installed happy binary + version
899 dnl    (don't do it if we're booting from .hc files though.)
900 if test "$BootingFromHc" = "NO"; then
901 FPTOOLS_HAPPY
902 fi;
903
904 AC_ARG_ENABLE(src-tree-haddock,
905 [AC_HELP_STRING([--enable-src-tree-haddock],
906         [Build and use source tree (fptools/haddock) version of Haddock.
907          [default=autodetect]])],
908 [ if test x"$enableval" = x"yes"; then
909         UseSrcTreeHaddock=YES
910   else
911         UseSrcTreeHaddock=NO
912   fi
913 ],
914 [UseSrcTreeHaddock=NO]
915 )
916 dnl ** check for installed haddock
917 FPTOOLS_HADDOCK
918
919 AC_ARG_ENABLE(src-tree-alex,
920 [AC_HELP_STRING([--enable-src-tree-alex],
921         [Build and use source tree (fptools/alex) version of Alex.
922          [default=autodetect]])],
923 [ if test x"$enableval" = x"yes"; then
924         UseSrcTreeAlex=YES
925   else
926         UseSrcTreeAlex=NO
927   fi
928 ],
929 [UseSrcTreeAlex=NO]
930 )
931 dnl ** check for installed alex binary + version
932 dnl    (don't do it if we're booting from .hc files though.)
933 if test "$BootingFromHc" = "NO"; then
934 FPTOOLS_ALEX
935 fi;
936
937 dnl --------------------------------------------------
938 dnl ### program checking section ends here ###
939 dnl --------------------------------------------------
940
941 dnl --------------------------------------------------
942 dnl * Platform header file and syscall feature tests
943 dnl ### checking the state of the local header files and syscalls ###
944
945 dnl ** check for full ANSI header (.h) files
946 AC_HEADER_STDC
947
948 dnl ** Enable large file support.  NB. do this before testing the type of
949 dnl    off_t, because it will affect the result of that test.
950 AC_SYS_LARGEFILE
951
952 dnl ** check for specific header (.h) files that we are interested in
953 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h])
954
955 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
956 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
957
958 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
959   GhcLibsWithReadline=YES
960   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
961 else
962   GhcLibsWithReadline=NO
963   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
964 fi
965 AC_SUBST(GhcLibsWithReadline)
966
967 dnl ** check for OpenGL/GLUT include paths and libraries
968 FP_CHECK_GLUT
969
970 if test x"$no_GLU" = xyes; then
971   GhcLibsWithOpenGL=NO
972 else
973   GhcLibsWithOpenGL=YES
974 fi
975 AC_SUBST([GhcLibsWithOpenGL])
976
977 if test x"$no_GLUT" = xyes; then
978   GhcLibsWithGLUT=NO
979 else
980   GhcLibsWithGLUT=YES
981 fi
982 AC_SUBST([GhcLibsWithGLUT])
983
984 dnl ** check for OpenGL include files
985 fp_save_cppflags="$CPPFLAGS"
986 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
987 if test x"$use_quartz_opengl" = xyes; then
988   AC_CHECK_HEADERS([OpenGL/gl.h])
989 else
990   AC_CHECK_HEADERS([GL/gl.h])
991 fi
992 CPPFLAGS="$fp_save_cppflags"
993
994 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
995 AC_HEADER_TIME
996
997 dnl ** check for POSIX regex
998 HavePosixRegex=NO
999 AC_CHECK_HEADERS([regex.h], [AC_CHECK_FUNCS(regcomp, [HavePosixRegex=YES])])
1000 AC_SUBST(HavePosixRegex)
1001
1002 dnl ** how do we get a timezone name, and UTC offset ?
1003 AC_STRUCT_TIMEZONE
1004
1005 dnl ** do we have altzone?
1006 FP_DECL_ALTZONE
1007
1008 dnl ** do we have long longs?
1009 AC_CHECK_TYPES([long long])
1010
1011 dnl ** what are the sizes of various types
1012 AC_CHECK_SIZEOF(char,               1)
1013 AC_CHECK_SIZEOF(double,             8)
1014 AC_CHECK_SIZEOF(float,              4)
1015 AC_CHECK_SIZEOF(int,                4)
1016 AC_CHECK_SIZEOF(long,               4)
1017 if test "$ac_cv_type_long_long" = yes; then
1018 AC_CHECK_SIZEOF(long long,          8)
1019 fi
1020 AC_CHECK_SIZEOF(short,              2)
1021 AC_CHECK_SIZEOF(unsigned char,      1)
1022 AC_CHECK_SIZEOF(unsigned int,       4)
1023 AC_CHECK_SIZEOF(unsigned long,      4)
1024 if test "$ac_cv_type_long_long" = yes; then
1025 AC_CHECK_SIZEOF(unsigned long long, 8)
1026 fi
1027 AC_CHECK_SIZEOF(unsigned short,     2)
1028 AC_CHECK_SIZEOF(void *,             4)
1029
1030 dnl ** what are alignment constraints on various types
1031 FP_CHECK_ALIGNMENT(char)
1032 FP_CHECK_ALIGNMENT(double)
1033 FP_CHECK_ALIGNMENT(float)
1034 FP_CHECK_ALIGNMENT(int)
1035 FP_CHECK_ALIGNMENT(long)
1036 if test "$ac_cv_type_long_long" = yes; then
1037 FP_CHECK_ALIGNMENT(long long)
1038 fi
1039 FP_CHECK_ALIGNMENT(short)
1040 FP_CHECK_ALIGNMENT(unsigned char)
1041 FP_CHECK_ALIGNMENT(unsigned int)
1042 FP_CHECK_ALIGNMENT(unsigned long)
1043 if test "$ac_cv_type_long_long" = yes; then
1044 FP_CHECK_ALIGNMENT(unsigned long long)
1045 fi
1046 FP_CHECK_ALIGNMENT(unsigned short)
1047 FP_CHECK_ALIGNMENT(void *)
1048
1049 dnl ** Map OpenGL data types to Haskell types
1050 if test $GhcLibsWithOpenGL = YES ; then
1051 FPTOOLS_CHECK_HTYPE(GLboolean)
1052 FPTOOLS_CHECK_HTYPE(GLbyte)
1053 FPTOOLS_CHECK_HTYPE(GLubyte)
1054 FPTOOLS_CHECK_HTYPE(GLshort)
1055 FPTOOLS_CHECK_HTYPE(GLushort)
1056 FPTOOLS_CHECK_HTYPE(GLint)
1057 FPTOOLS_CHECK_HTYPE(GLuint)
1058 FPTOOLS_CHECK_HTYPE(GLsizei)
1059 FPTOOLS_CHECK_HTYPE(GLenum)
1060 FPTOOLS_CHECK_HTYPE(GLbitfield)
1061 FPTOOLS_CHECK_HTYPE(GLfloat)
1062 FPTOOLS_CHECK_HTYPE(GLclampf)
1063 FPTOOLS_CHECK_HTYPE(GLdouble)
1064 FPTOOLS_CHECK_HTYPE(GLclampd)
1065 fi
1066
1067 FP_CHECK_FUNC([WinExec],
1068   [@%:@include <windows.h>], [WinExec("",0)])
1069
1070 FP_CHECK_FUNC([GetModuleFileName],
1071   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1072
1073 dnl ** check return type of signal handlers
1074 dnl Foo: assumes we can use prototypes.
1075 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1076 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1077 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1078 dnl #include <signal.h>
1079 dnl #ifdef signal
1080 dnl #undef signal
1081 dnl #endif
1082 dnl void (*signal (int, void (*)(int)))(int);
1083 dnl ]],
1084 dnl [[int i;]])],
1085 dnl [ac_cv_type_signal_handler=void_int],
1086 dnl [ac_cv_type_signal_handler=int_void])])
1087 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1088 dnl AC_DEFINE(VOID_INT_SIGNALS)
1089 dnl fi
1090
1091 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1092 AC_TYPE_SIGNAL
1093 if test "$ac_cv_type_signal" = void; then
1094   AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
1095 fi
1096
1097 dnl ** check for more functions
1098 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1099 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times])
1100 dnl ** For ghc/rts/gmp:
1101 AC_CHECK_FUNCS([getpagesize])
1102
1103 dnl ** check whether this machine has gmp3 installed
1104 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1105   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1106     HaveLibGmp=NO; LibGmp=not-installed))
1107 AC_SUBST(HaveLibGmp)
1108 AC_SUBST(LibGmp)
1109
1110 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1111 HaveFrameworkHaskellSupport=NO
1112 if test $HostPlatform = "powerpc-apple-darwin"; then
1113  AC_MSG_CHECKING([for HaskellSupport.framework])
1114  save_libs="$LIBS"
1115  LIBS="-framework HaskellSupport"
1116  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1117  if test $HaveFrameworkHaskellSupport = YES; then
1118   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1119  fi;
1120  LIBS="$save_libs"
1121  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1122 fi;
1123 AC_SUBST(HaveFrameworkHaskellSupport)
1124
1125 dnl ** check for mingwex library
1126 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1127 AC_SUBST(HaveLibMingwEx)
1128
1129 if test $HaveLibMingwEx = YES ; then
1130   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1131 fi
1132
1133 if test "$HaveLibGmp" = "NO"; then
1134 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1135 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1136 fi;
1137 fi;
1138
1139 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1140 dnl    the order of these tests matters: bfd needs liberty
1141 AC_CHECK_LIB(iberty, xmalloc)
1142 AC_CHECK_LIB(bfd,    bfd_init)
1143
1144 dnl ** check for readline, for Hugs and hslibs' Readline
1145 dnl ncurses supersedes termcap and curses, but for compatibility,
1146 dnl we have to check for all...
1147 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1148   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1149     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1150       HaveLibTermcap=NO; LibTermcap=not-installed)))
1151
1152 if test $HaveLibTermcap = YES ; then
1153   LIBS="-l$LibTermcap $LIBS"
1154   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1155 fi
1156
1157 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1158   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1159   LibsReadline="readline $LibTermcap"
1160 else
1161   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1162   LibsReadline=
1163 fi
1164 AC_SUBST(LibsReadline)
1165
1166 if test "$HaveLibReadline"; then
1167   AC_CHECK_LIB(readline, rl_erase_empty_line,
1168     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1169     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1170   AC_CHECK_LIB(readline, rl_free_undo_list,
1171     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1172     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1173 else
1174   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1175   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1176 fi
1177
1178 dnl ** check for math library
1179 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"], [LIBM=])
1180 AC_SUBST([LIBM])
1181
1182 dnl ** check for X Window System
1183 AC_PATH_XTRA()
1184
1185 if test "$no_x" = yes; then
1186   GhcLibsWithX11=NO
1187 else
1188   GhcLibsWithX11=YES
1189 fi
1190 AC_SUBST([GhcLibsWithX11])
1191
1192 dnl ################################################################
1193 dnl Check for libraries
1194 dnl ################################################################
1195
1196 dnl ** check for libdl & RTLD_NEXT
1197
1198 dnl (Mac OS X only) ... but don't check if we already have the
1199 dnl HaskellSupport.framework
1200
1201 if test $HaveFrameworkHaskellSupport = YES; then
1202     HaveLibDL=NO
1203     HaveRtldNext=NO
1204     HaveRtldLocal=YES
1205     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1206     HaveRtldGlobal=YES
1207     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1208     HaveRtldNow=YES
1209     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1210     AC_SUBST(HaveLibDL)
1211     AC_SUBST(HaveRtldNext)
1212     AC_SUBST(HaveRtldLocal)
1213     AC_SUBST(HaveRtldGlobal)
1214     AC_SUBST(HaveRtldNow)
1215 else
1216     AC_CHECK_LIB(dl, dlopen, 
1217         [HaveLibDL=YES
1218          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1219          LIBS="$LIBS -ldl"], 
1220         [HaveLibDL=NO])
1221     AC_SUBST(HaveLibDL)
1222
1223     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1224     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1225     AC_EGREP_CPP(yes,
1226     [
1227      #include <dlfcn.h>
1228      #ifdef RTLD_NEXT
1229             yes
1230      #endif
1231     ], [
1232       AC_MSG_RESULT(yes)
1233       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1234       HaveRtldNext=YES
1235     ], [
1236       AC_MSG_RESULT(no)
1237       HaveRtldNext=NO
1238       ])    
1239     AC_SUBST(HaveRtldNext)
1240
1241     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1242     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1243     AC_EGREP_CPP(yes,
1244     [
1245      #include <dlfcn.h>
1246      #ifdef RTLD_LOCAL
1247             yes
1248      #endif
1249     ], [
1250       AC_MSG_RESULT(yes)
1251       AC_DEFINE(HAVE_RTLDLOCAL)
1252       HaveRtldLocal=YES
1253     ], [
1254       AC_MSG_RESULT(no)
1255       HaveRtldLocal=NO
1256       ])    
1257     AC_SUBST(HaveRtldLocal)
1258
1259     dnl ** RTLD_GLOBAL isn't available on openbsd
1260     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1261     AC_EGREP_CPP(yes,
1262     [
1263      #include <dlfcn.h>
1264      #ifdef RTLD_GLOBAL
1265             yes
1266      #endif
1267     ], [
1268       AC_MSG_RESULT(yes)
1269       AC_DEFINE(HAVE_RTLDGLOBAL)
1270       HaveRtldGlobal=YES
1271     ], [
1272       AC_MSG_RESULT(no)
1273       HaveRtldGlobal=NO
1274       ])    
1275     AC_SUBST(HaveRtldGlobal)
1276
1277     dnl ** RTLD_NOW isn't available on openbsd
1278     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1279     AC_EGREP_CPP(yes,
1280     [
1281      #include <dlfcn.h>
1282      #ifdef RTLD_NOW
1283             yes
1284      #endif
1285     ], [
1286       AC_MSG_RESULT(yes)
1287       AC_DEFINE(HAVE_RTLDNOW)
1288       HaveRtldNow=YES
1289     ], [
1290       AC_MSG_RESULT(no)
1291       HaveRtldNow=NO
1292       ])    
1293     AC_SUBST(HaveRtldNow)
1294 fi
1295
1296 dnl --------------------------------------------------
1297 dnl * test for GTK+
1298 dnl --------------------------------------------------
1299
1300 AC_PATH_PROGS([GTK_CONFIG], [gtk-config gtk12-config])
1301 if test -n "$GTK_CONFIG"; then
1302   AC_CACHE_CHECK([for version of GTK+], [fp_cv_gtk_version],
1303     [fp_cv_gtk_version=`$GTK_CONFIG --version`])
1304   FP_COMPARE_VERSIONS([$fp_cv_gtk_version], [-lt], [1.2],
1305     [AC_MSG_WARN([GTK+ not usable, need at least version 1.2])
1306      GTK_CONFIG=])
1307 fi
1308 AC_SUBST([GTK_CONFIG])
1309
1310 dnl --------------------------------------------------
1311 dnl * Miscellaneous feature tests
1312 dnl --------------------------------------------------
1313
1314 dnl ** can we get alloca?
1315 AC_FUNC_ALLOCA
1316
1317 dnl ** Working vfork?
1318 AC_FUNC_FORK
1319
1320 dnl ** determine whether or not const works
1321 AC_C_CONST
1322
1323 dnl ** are we big endian?
1324 AC_C_BIGENDIAN
1325
1326 dnl ** check for leading underscores in symbol names
1327 FP_LEADING_UNDERSCORE
1328
1329 dnl ** check for ld, and whether ld has -x option
1330 AC_PATH_PROG(LdCmdRaw, ld)
1331 case $HostOS_CPP in
1332  mingw32) 
1333         if test "${OSTYPE}" == "msys"
1334            then
1335              LdCmd=${LdCmdRaw}
1336            else
1337              LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1338         fi
1339            ;;
1340  *) LdCmd=${LdCmdRaw}
1341     ;;
1342 esac
1343 AC_SUBST(LdCmd)
1344 FPTOOLS_LD_X
1345
1346 AC_CONFIG_FILES([mk/config.mk])
1347 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1348 AC_OUTPUT