[project @ 2004-11-20 16:02:41 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="$withval"],
585   [if test "$GHC" = ""; then
586     AC_PATH_PROG([GHC], [ghc])
587   fi
588   WithGhc="$GHC"])
589 AC_SUBST([WithGhc])
590
591 AC_ARG_WITH(hc,
592 [AC_HELP_STRING([--with-hc=ARG],
593         [Use ARG as the path to the compiler for compiling ordinary
594          Haskell code  (default= value of --with-ghc)])],
595 [WithHc="$withval"],
596 [WithHc=$WithGhc]
597 )
598 AC_SUBST(WithHc)
599
600 if test "$WithGhc" != ""; then
601   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
602   AC_SUBST(GhcVersion)dnl
603   AC_SUBST(GhcMajVersion)dnl
604   AC_SUBST(GhcMinVersion)dnl
605   AC_SUBST(GhcPatchLevel)dnl
606 fi
607
608 AC_PATH_PROGS(NHC,nhc nhc98)
609 AC_PATH_PROG(HBC,hbc)
610
611 dnl ** Which gcc to use?
612 dnl --------------------------------------------------------------
613 AC_ARG_WITH(gcc,
614 [AC_HELP_STRING([--with-gcc=ARG],
615         [Use ARG as the path to GCC  [default=autodetect]])],
616 [WhatGccIsCalled="$withval"
617  if test "x$HostPlatform" = "xi386-unknown-mingw32"
618     then
619        if test "${OSTYPE}" != "msys"
620          then
621          # Canonicalise to <drive>:/path/to/gcc
622          withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
623        fi
624  fi;
625  CC="$withval"],
626 [WhatGccIsCalled="gcc"]
627 )
628 AC_SUBST(WhatGccIsCalled)
629
630 dnl ** Booting from .hc files?
631 dnl --------------------------------------------------------------
632 AC_ARG_ENABLE(hc-boot,
633 [AC_HELP_STRING([--enable-hc-boot],
634 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
635  (This option is mostly of interest to porters.) [default=no]])],
636 [ if test x"$enableval" = x"yes"; then
637         BootingFromHc=YES
638   else
639         BootingFromHc=NO
640   fi
641 ],
642 [BootingFromHc=NO]
643 )
644 AC_SUBST(BootingFromHc)
645
646 dnl ** Booting from unregisterised .hc files?
647 dnl --------------------------------------------------------------
648 AC_ARG_ENABLE(hc-boot-unregisterised,
649 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
650 [ With --enable-hc-boot, treat the intermediate .hc files as
651  unregisterised rather than registerised code.
652  (This option is mostly of interest to porters.) [default=no]])],
653 [ if test x"$enableval" = x"yes"; then
654         BootingFromUnregisterisedHc=YES
655   else
656         BootingFromUnregisterisedHc=NO
657   fi
658 ],
659 [BootingFromUnregisterisedHc=NO]
660 )
661 AC_SUBST(BootingFromUnregisterisedHc)
662
663 if test "$BootingFromHc" = "NO"; then
664 if test "$BootingFromUnregisterisedHc" = "YES"; then
665 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
666 fi;
667 fi;
668
669 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
670 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
671 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
672 fi;
673
674 dnl ** --enable-threaded-rts (not used any more)
675 dnl --------------------------------------------------------------
676 AC_ARG_ENABLE(threaded-rts,
677 [AC_HELP_STRING([--enable-threaded-rts],
678 [DEPRECATED (backwards compatibility only). [default=no]])],
679 [ if test x"$enableval" = x"yes"; then
680         ThreadedRts=YES
681   else
682         ThreadedRts=NO
683   fi
684 ],
685 [ThreadedRts=NO]
686 )
687 AC_SUBST(ThreadedRts)
688
689 dnl ** Enable the construction of Win32 DLLs?
690 dnl --------------------------------------------------------------
691 dnl
692 dnl [ The ability to build the RTS and libraries as separate DLLs used
693 dnl   to be supported, but isn't currently (updates to the RTS, compiler 
694 dnl   and build system would be required to bring it back again.)
695 dnl   Hence, exposing it as an option is false advertisement, so better
696 dnl   disable it to avoid confusion (but leave it commented-out rather
697 dnl   than removed in order to remind ourselves to bring back the 
698 dnl   feature at some stage.) ]
699 dnl
700 dnl AC_ARG_ENABLE(win32-dlls,
701 dnl [  --enable-win32-dlls
702 dnl         If on a Win32 platform running mingw32/cygwin, enable the
703 dnl     construction of DLLs containing ghc-compiled code.
704 dnl ],
705 dnl [
706 dnl case $HostOS_CPP in
707 dnl cygwin32) ;;
708 dnl mingw32)  ;;
709 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
710 dnl       exit 1
711 dnl       ;;
712 dnl esac
713 dnl EnableWin32DLLs=YES
714 dnl ],
715 dnl [EnableWin32DLLs=NO]
716 dnl )
717 dnl AC_SUBST(EnableWin32DLLs)
718 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
719 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
720 dnl fi
721
722 dnl ** Enable the building of the ObjectIO?
723 dnl --------------------------------------------------------------
724 AC_ARG_ENABLE(objectio,
725 [AC_HELP_STRING([--enable-objectio],
726 [Build ObjectIO, a portable GUI library for Haskell. [default=no]])],
727 [ if test x"$enableval" = x"yes"; then
728         GhcLibsWithObjectIO=YES
729   else
730         GhcLibsWithObjectIO=NO
731   fi
732 ],
733 [GhcLibsWithObjectIO=NO]
734 )
735 AC_SUBST(GhcLibsWithObjectIO)
736
737 dnl ** Enable the building of the OpenAL binding?
738 dnl --------------------------------------------------------------
739 AC_ARG_ENABLE([openal],
740   AC_HELP_STRING([--enable-openal],
741                  [Build OpenAL binding [[default=autodetect]]]),
742   [ if test x"$enableval" = x"yes"; then
743         GhcLibsWithOpenAL=YES
744     else
745         GhcLibsWithOpenAL=NO
746     fi
747   ],
748   [GhcLibsWithOpenAL=YES])
749
750 AC_SUBST([GhcLibsWithOpenAL])
751
752 dnl ** .NET interop support?
753 dnl --------------------------------------------------------------
754 AC_ARG_ENABLE(dotnet,
755 [AC_HELP_STRING([--enable-dotnet],
756 [Build .NET interop layer. [default=no]])],
757 [ if test x"$enableval" = x"yes"; then
758         DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
759   else 
760         DotnetSupport=NO
761   fi],
762 [DotnetSupport=NO]
763 )
764 AC_SUBST(DotnetSupport)
765
766 dnl --------------------------------------------------------------
767 dnl End of configure script option section
768 dnl --------------------------------------------------------------
769
770
771 dnl --------------------------------------------------------------
772 dnl * General configuration checks
773 dnl --------------------------------------------------------------
774
775 dnl ** Can the unix package be built?
776 dnl --------------------------------------------------------------
777
778 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
779    GhcLibsWithUnix=NO
780 else
781    GhcLibsWithUnix=YES
782 fi
783 AC_SUBST([GhcLibsWithUnix])
784
785 dnl ** does #! work?
786 AC_SYS_INTERPRETER()
787
788 dnl ** look for `perl', but only in /bin on Windows
789 case $HostOS_CPP in
790 cygwin32|mingw32)
791       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
792       if test -z "$PerlCmd"; then
793          echo "You must install the version of Perl shipped with GHC"
794          echo "(or a compatible one) in /bin."
795          exit 1
796       fi
797    ;;
798 *)
799    AC_PATH_PROG(PerlCmd,perl)
800    if test -z "$PerlCmd"; then
801       echo "You must install perl before you can continue"
802       echo "Perhaps it is already installed, but not in your PATH?"
803       exit 1
804    else
805    FPTOOLS_CHECK_PERL_VERSION
806    fi
807    ;;
808 esac
809
810 dnl ** does #! path/to/perl work? (sometimes it's too long...)
811 FPTOOLS_SHEBANG_PERL
812
813 dnl ** check for Python
814 AC_PATH_PROG(PythonCmd,python)
815
816 dnl ** look for GCC and find out which version
817 dnl     Figure out which C compiler to use.  Gcc is preferred.
818 dnl     If gcc, make sure it's at least 2.1
819 dnl
820 FP_HAVE_GCC
821
822 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
823 AC_PROG_CPP
824
825 dnl ** Without optimization some INLINE trickery fails for GHCi
826 SRC_CC_OPTS="-O"
827
828 dnl ** Try to add -mno-cygwin to the C compiler options
829 FP_CHECK_FLAG([-mno-cygwin], [
830 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
831 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
832 AC_SUBST(SRC_CC_OPTS)
833
834 dnl ** figure out how to do context diffs
835 FP_PROG_CONTEXT_DIFF
836
837 dnl ** Find find command (for Win32's benefit)
838 FP_PROG_FIND
839
840 dnl ** figure out how to do a BSD-ish install
841 AC_PROG_INSTALL
842
843 dnl If you can run configure, you certainly have /bin/sh
844 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
845
846 dnl ** how to invoke `ar' and `ranlib'
847 FP_PROG_AR_NEEDS_RANLIB
848 FP_PROG_AR_SUPPORTS_INPUT
849
850 dnl ** Check to see whether ln -s works
851 AC_PROG_LN_S
852
853
854 dnl ** Find the path to sed
855 AC_PATH_PROG(SedCmd,sed)
856
857
858 dnl ** check for time command
859 AC_PATH_PROG(TimeCmd,time)
860
861 dnl ** check for tar
862 dnl   if GNU tar is named gtar, look for it first.
863 AC_PATH_PROGS(TarCmd,gtar tar,tar)
864
865 dnl ** check for DocBook toolchain
866 FP_CHECK_DOCBOOK_DTD
867 FP_DIR_DOCBOOK_XSL([/usr/share/xml/docbook/stylesheet/nwalsh/current /usr/share/xml/docbook/stylesheet/nwalsh /usr/share/sgml/docbook/docbook-xsl-stylesheets* /usr/share/sgml/docbook/xsl-stylesheets* /opt/kde?/share/apps/ksgmltools2/docbook/xsl /usr/share/docbook-xsl /usr/share/sgml/docbkxsl])
868 FP_PROG_FO_PROCESSOR
869
870 dnl ** check for ghc-pkg command
871 FP_PROG_GHC_PKG
872
873 AC_ARG_WITH(greencard,
874 [AC_HELP_STRING([--with-greencard=ARG],
875         [Use ARG as the path to greencard  [default=autodetct]])],
876 [
877 GreenCardCmd=$withval;
878 FPTOOLS_GREENCARD(3.00)
879 ]
880 )
881
882 AC_ARG_ENABLE(src-tree-happy,
883 [AC_HELP_STRING([--enable-src-tree-happy],
884         [Build and use source tree (fptools/happy) version of Happy. 
885          [default=autodetect]])],
886 [ if test x"$enableval" = x"yes"; then
887         UseSrcTreeHappy=YES
888   else
889         UseSrcTreeHappy=NO
890   fi
891 ],
892 [UseSrcTreeHappy=NO]
893 )
894 dnl ** check for installed happy binary + version
895 dnl    (don't do it if we're booting from .hc files though.)
896 if test "$BootingFromHc" = "NO"; then
897 FPTOOLS_HAPPY
898 fi;
899
900 AC_ARG_ENABLE(src-tree-haddock,
901 [AC_HELP_STRING([--enable-src-tree-haddock],
902         [Build and use source tree (fptools/haddock) version of Haddock.
903          [default=autodetect]])],
904 [ if test x"$enableval" = x"yes"; then
905         UseSrcTreeHaddock=YES
906   else
907         UseSrcTreeHaddock=NO
908   fi
909 ],
910 [UseSrcTreeHaddock=NO]
911 )
912 dnl ** check for installed haddock
913 FPTOOLS_HADDOCK
914
915 AC_ARG_ENABLE(src-tree-alex,
916 [AC_HELP_STRING([--enable-src-tree-alex],
917         [Build and use source tree (fptools/alex) version of Alex.
918          [default=autodetect]])],
919 [ if test x"$enableval" = x"yes"; then
920         UseSrcTreeAlex=YES
921   else
922         UseSrcTreeAlex=NO
923   fi
924 ],
925 [UseSrcTreeAlex=NO]
926 )
927 dnl ** check for installed alex binary + version
928 dnl    (don't do it if we're booting from .hc files though.)
929 if test "$BootingFromHc" = "NO"; then
930 FPTOOLS_ALEX
931 fi;
932
933 dnl --------------------------------------------------
934 dnl ### program checking section ends here ###
935 dnl --------------------------------------------------
936
937 dnl --------------------------------------------------
938 dnl * Platform header file and syscall feature tests
939 dnl ### checking the state of the local header files and syscalls ###
940
941 dnl ** check for full ANSI header (.h) files
942 AC_HEADER_STDC
943
944 dnl ** Enable large file support.  NB. do this before testing the type of
945 dnl    off_t, because it will affect the result of that test.
946 AC_SYS_LARGEFILE
947
948 dnl ** check for specific header (.h) files that we are interested in
949 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])
950
951 AC_CHECK_HEADER([readline/readline.h], [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
952 AC_CHECK_HEADER([readline/history.h], [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
953
954 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
955   GhcLibsWithReadline=YES
956   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
957 else
958   GhcLibsWithReadline=NO
959   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
960 fi
961 AC_SUBST(GhcLibsWithReadline)
962
963 dnl ** check for OpenGL/GLUT include paths and libraries
964 FP_CHECK_GLUT
965
966 if test x"$no_GLU" = xyes; then
967   GhcLibsWithOpenGL=NO
968 else
969   GhcLibsWithOpenGL=YES
970 fi
971 AC_SUBST([GhcLibsWithOpenGL])
972
973 if test x"$no_GLUT" = xyes; then
974   GhcLibsWithGLUT=NO
975 else
976   GhcLibsWithGLUT=YES
977 fi
978 AC_SUBST([GhcLibsWithGLUT])
979
980 dnl ** check for OpenGL include files
981 fp_save_cppflags="$CPPFLAGS"
982 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
983 if test x"$use_quartz_opengl" = xyes; then
984   AC_CHECK_HEADERS([OpenGL/gl.h])
985 else
986   AC_CHECK_HEADERS([GL/gl.h])
987 fi
988 CPPFLAGS="$fp_save_cppflags"
989
990 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
991 AC_HEADER_TIME
992
993 dnl ** check for POSIX regex
994 HavePosixRegex=NO
995 AC_CHECK_HEADERS([regex.h], [AC_CHECK_FUNCS(regcomp, [HavePosixRegex=YES])])
996 AC_SUBST(HavePosixRegex)
997
998 dnl ** how do we get a timezone name, and UTC offset ?
999 AC_STRUCT_TIMEZONE
1000
1001 dnl ** do we have altzone?
1002 FP_DECL_ALTZONE
1003
1004 dnl ** do we have long longs?
1005 AC_CHECK_TYPES([long long])
1006
1007 dnl ** what are the sizes of various types
1008 AC_CHECK_SIZEOF(char,               1)
1009 AC_CHECK_SIZEOF(double,             8)
1010 AC_CHECK_SIZEOF(float,              4)
1011 AC_CHECK_SIZEOF(int,                4)
1012 AC_CHECK_SIZEOF(long,               4)
1013 if test "$ac_cv_type_long_long" = yes; then
1014 AC_CHECK_SIZEOF(long long,          8)
1015 fi
1016 AC_CHECK_SIZEOF(short,              2)
1017 AC_CHECK_SIZEOF(unsigned char,      1)
1018 AC_CHECK_SIZEOF(unsigned int,       4)
1019 AC_CHECK_SIZEOF(unsigned long,      4)
1020 if test "$ac_cv_type_long_long" = yes; then
1021 AC_CHECK_SIZEOF(unsigned long long, 8)
1022 fi
1023 AC_CHECK_SIZEOF(unsigned short,     2)
1024 AC_CHECK_SIZEOF(void *,             4)
1025
1026 dnl ** what are alignment constraints on various types
1027 FP_CHECK_ALIGNMENT(char)
1028 FP_CHECK_ALIGNMENT(double)
1029 FP_CHECK_ALIGNMENT(float)
1030 FP_CHECK_ALIGNMENT(int)
1031 FP_CHECK_ALIGNMENT(long)
1032 if test "$ac_cv_type_long_long" = yes; then
1033 FP_CHECK_ALIGNMENT(long long)
1034 fi
1035 FP_CHECK_ALIGNMENT(short)
1036 FP_CHECK_ALIGNMENT(unsigned char)
1037 FP_CHECK_ALIGNMENT(unsigned int)
1038 FP_CHECK_ALIGNMENT(unsigned long)
1039 if test "$ac_cv_type_long_long" = yes; then
1040 FP_CHECK_ALIGNMENT(unsigned long long)
1041 fi
1042 FP_CHECK_ALIGNMENT(unsigned short)
1043 FP_CHECK_ALIGNMENT(void *)
1044
1045 dnl ** Map OpenGL data types to Haskell types
1046 if test $GhcLibsWithOpenGL = YES ; then
1047 FPTOOLS_CHECK_HTYPE(GLboolean)
1048 FPTOOLS_CHECK_HTYPE(GLbyte)
1049 FPTOOLS_CHECK_HTYPE(GLubyte)
1050 FPTOOLS_CHECK_HTYPE(GLshort)
1051 FPTOOLS_CHECK_HTYPE(GLushort)
1052 FPTOOLS_CHECK_HTYPE(GLint)
1053 FPTOOLS_CHECK_HTYPE(GLuint)
1054 FPTOOLS_CHECK_HTYPE(GLsizei)
1055 FPTOOLS_CHECK_HTYPE(GLenum)
1056 FPTOOLS_CHECK_HTYPE(GLbitfield)
1057 FPTOOLS_CHECK_HTYPE(GLfloat)
1058 FPTOOLS_CHECK_HTYPE(GLclampf)
1059 FPTOOLS_CHECK_HTYPE(GLdouble)
1060 FPTOOLS_CHECK_HTYPE(GLclampd)
1061 fi
1062
1063 FP_CHECK_FUNC([WinExec],
1064   [@%:@include <windows.h>], [WinExec("",0)])
1065
1066 FP_CHECK_FUNC([GetModuleFileName],
1067   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
1068
1069 dnl ** check return type of signal handlers
1070 dnl Foo: assumes we can use prototypes.
1071 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1072 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1073 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
1074 dnl #include <signal.h>
1075 dnl #ifdef signal
1076 dnl #undef signal
1077 dnl #endif
1078 dnl void (*signal (int, void (*)(int)))(int);
1079 dnl ]],
1080 dnl [[int i;]])],
1081 dnl [ac_cv_type_signal_handler=void_int],
1082 dnl [ac_cv_type_signal_handler=int_void])])
1083 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1084 dnl AC_DEFINE(VOID_INT_SIGNALS)
1085 dnl fi
1086
1087 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1088 AC_TYPE_SIGNAL
1089 if test "$ac_cv_type_signal" = void; then
1090   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).])
1091 fi
1092
1093 dnl ** check for more functions
1094 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
1095 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times])
1096 dnl ** For ghc/rts/gmp:
1097 AC_CHECK_FUNCS([getpagesize])
1098
1099 dnl ** check whether this machine has gmp3 installed
1100 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1101   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1102     HaveLibGmp=NO; LibGmp=not-installed))
1103 AC_SUBST(HaveLibGmp)
1104 AC_SUBST(LibGmp)
1105
1106 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1107 HaveFrameworkHaskellSupport=NO
1108 if test $HostPlatform = "powerpc-apple-darwin"; then
1109  AC_MSG_CHECKING([for HaskellSupport.framework])
1110  save_libs="$LIBS"
1111  LIBS="-framework HaskellSupport"
1112  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1113  if test $HaveFrameworkHaskellSupport = YES; then
1114   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1115  fi;
1116  LIBS="$save_libs"
1117  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1118 fi;
1119 AC_SUBST(HaveFrameworkHaskellSupport)
1120
1121 dnl ** check for mingwex library
1122 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1123 AC_SUBST(HaveLibMingwEx)
1124
1125 if test $HaveLibMingwEx = YES ; then
1126   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1127 fi
1128
1129 if test "$HaveLibGmp" = "NO"; then
1130 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1131 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1132 fi;
1133 fi;
1134
1135 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1136 dnl    the order of these tests matters: bfd needs liberty
1137 AC_CHECK_LIB(iberty, xmalloc)
1138 AC_CHECK_LIB(bfd,    bfd_init)
1139
1140 dnl ** check for readline, for Hugs and hslibs' Readline
1141 dnl ncurses supersedes termcap and curses, but for compatibility,
1142 dnl we have to check for all...
1143 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1144   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1145     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1146       HaveLibTermcap=NO; LibTermcap=not-installed)))
1147
1148 if test $HaveLibTermcap = YES ; then
1149   LIBS="-l$LibTermcap $LIBS"
1150   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1151 fi
1152
1153 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1154   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1155   LibsReadline="readline $LibTermcap"
1156 else
1157   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1158   LibsReadline=
1159 fi
1160 AC_SUBST(LibsReadline)
1161
1162 if test "$HaveLibReadline"; then
1163   AC_CHECK_LIB(readline, rl_erase_empty_line,
1164     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1165     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1166   AC_CHECK_LIB(readline, rl_free_undo_list,
1167     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1168     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1169 else
1170   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1171   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1172 fi
1173
1174 dnl ** check for math library
1175 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"], [LIBM=])
1176 AC_SUBST([LIBM])
1177
1178 dnl ** check for X Window System
1179 AC_PATH_XTRA()
1180
1181 if test "$no_x" = yes; then
1182   GhcLibsWithX11=NO
1183 else
1184   GhcLibsWithX11=YES
1185 fi
1186 AC_SUBST([GhcLibsWithX11])
1187
1188 dnl ################################################################
1189 dnl Check for libraries
1190 dnl ################################################################
1191
1192 dnl ** check for libdl & RTLD_NEXT
1193
1194 dnl (Mac OS X only) ... but don't check if we already have the
1195 dnl HaskellSupport.framework
1196
1197 if test $HaveFrameworkHaskellSupport = YES; then
1198     HaveLibDL=NO
1199     HaveRtldNext=NO
1200     HaveRtldLocal=YES
1201     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1202     HaveRtldGlobal=YES
1203     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1204     HaveRtldNow=YES
1205     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1206     AC_SUBST(HaveLibDL)
1207     AC_SUBST(HaveRtldNext)
1208     AC_SUBST(HaveRtldLocal)
1209     AC_SUBST(HaveRtldGlobal)
1210     AC_SUBST(HaveRtldNow)
1211 else
1212     AC_CHECK_LIB(dl, dlopen, 
1213         [HaveLibDL=YES
1214          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1215          LIBS="$LIBS -ldl"], 
1216         [HaveLibDL=NO])
1217     AC_SUBST(HaveLibDL)
1218
1219     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1220     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1221     AC_EGREP_CPP(yes,
1222     [
1223      #include <dlfcn.h>
1224      #ifdef RTLD_NEXT
1225             yes
1226      #endif
1227     ], [
1228       AC_MSG_RESULT(yes)
1229       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1230       HaveRtldNext=YES
1231     ], [
1232       AC_MSG_RESULT(no)
1233       HaveRtldNext=NO
1234       ])    
1235     AC_SUBST(HaveRtldNext)
1236
1237     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1238     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1239     AC_EGREP_CPP(yes,
1240     [
1241      #include <dlfcn.h>
1242      #ifdef RTLD_LOCAL
1243             yes
1244      #endif
1245     ], [
1246       AC_MSG_RESULT(yes)
1247       AC_DEFINE(HAVE_RTLDLOCAL)
1248       HaveRtldLocal=YES
1249     ], [
1250       AC_MSG_RESULT(no)
1251       HaveRtldLocal=NO
1252       ])    
1253     AC_SUBST(HaveRtldLocal)
1254
1255     dnl ** RTLD_GLOBAL isn't available on openbsd
1256     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1257     AC_EGREP_CPP(yes,
1258     [
1259      #include <dlfcn.h>
1260      #ifdef RTLD_GLOBAL
1261             yes
1262      #endif
1263     ], [
1264       AC_MSG_RESULT(yes)
1265       AC_DEFINE(HAVE_RTLDGLOBAL)
1266       HaveRtldGlobal=YES
1267     ], [
1268       AC_MSG_RESULT(no)
1269       HaveRtldGlobal=NO
1270       ])    
1271     AC_SUBST(HaveRtldGlobal)
1272
1273     dnl ** RTLD_NOW isn't available on openbsd
1274     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1275     AC_EGREP_CPP(yes,
1276     [
1277      #include <dlfcn.h>
1278      #ifdef RTLD_NOW
1279             yes
1280      #endif
1281     ], [
1282       AC_MSG_RESULT(yes)
1283       AC_DEFINE(HAVE_RTLDNOW)
1284       HaveRtldNow=YES
1285     ], [
1286       AC_MSG_RESULT(no)
1287       HaveRtldNow=NO
1288       ])    
1289     AC_SUBST(HaveRtldNow)
1290 fi
1291
1292 dnl --------------------------------------------------
1293 dnl * test for GTK+
1294 dnl --------------------------------------------------
1295
1296 AC_PATH_PROGS([GTK_CONFIG], [gtk-config gtk12-config])
1297 if test -n "$GTK_CONFIG"; then
1298   AC_CACHE_CHECK([for version of GTK+], [fp_cv_gtk_version],
1299     [fp_cv_gtk_version=`$GTK_CONFIG --version`])
1300   FP_COMPARE_VERSIONS([$fp_cv_gtk_version], [-lt], [1.2],
1301     [AC_MSG_WARN([GTK+ not usable, need at least version 1.2])
1302      GTK_CONFIG=])
1303 fi
1304 AC_SUBST([GTK_CONFIG])
1305
1306 dnl --------------------------------------------------
1307 dnl * Miscellaneous feature tests
1308 dnl --------------------------------------------------
1309
1310 dnl ** can we get alloca?
1311 AC_FUNC_ALLOCA
1312
1313 dnl ** Working vfork?
1314 AC_FUNC_FORK
1315
1316 dnl ** determine whether or not const works
1317 AC_C_CONST
1318
1319 dnl ** are we big endian?
1320 AC_C_BIGENDIAN
1321
1322 dnl ** check for leading underscores in symbol names
1323 FP_LEADING_UNDERSCORE
1324
1325 dnl ** check for ld, and whether ld has -x option
1326 AC_PATH_PROG(LdCmdRaw, ld)
1327 case $HostOS_CPP in
1328  mingw32) 
1329         if test "${OSTYPE}" == "msys"
1330            then
1331              LdCmd=${LdCmdRaw}
1332            else
1333              LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1334         fi
1335            ;;
1336  *) LdCmd=${LdCmdRaw}
1337     ;;
1338 esac
1339 AC_SUBST(LdCmd)
1340 FPTOOLS_LD_X
1341
1342 AC_CONFIG_FILES([mk/config.mk])
1343 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
1344 AC_OUTPUT