[project @ 2003-11-15 19:37:13 by panne]
[ghc-hetmet.git] / configure.ac
1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/   +/g;'"
3 dnl  (or some such) to see the outline of this file)
4 dnl
5 #
6 # (c) The AQUA Project, Glasgow University, 1994-1998
7 #
8 # Configure script template for the Glasgow functional programming tools
9 #
10 # Process with 'autoconf' to get a working configure script.
11 #
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
14 #
15
16 # First off, a distrib sanity check..
17 AC_INIT(mk/config.mk.in)
18
19 dnl * We require autoconf version 2.52
20 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
21 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
22 AC_PREREQ(2.52)
23
24 dnl * Declare subdirectories that have a private configure script
25 dnl
26 dnl After the toplevel configuration is complete, the script will recurse into
27 dnl these subdirectories if they exist. The use of a cache file makes repeated
28 dnl checks cheap.
29 AC_CONFIG_SUBDIRS([ghc libraries])
30
31 # -------------------------------------------------------------------------
32 # Prepare to generate the following header files
33 #
34 #
35 AC_CONFIG_HEADER(mk/config.h)
36
37 # No, semi-sadly, we don't do `--srcdir'...
38 if test x"$srcdir" != 'x.' ; then
39     echo "This configuration does not support the \`--srcdir' option.."
40     exit 1
41 fi
42
43 dnl--------------------------------------------------------------------
44 dnl * Choose host(/target/build) platform
45 dnl--------------------------------------------------------------------
46
47 dnl Guess host/target/build platform(s) if necessary.
48 AC_CANONICAL_SYSTEM
49
50 # "$host" defaults to "$target"
51 if test "x$host" = xNONE ; then
52     host=$target
53 fi
54
55 dnl ** canonicalize platform names
56 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
57 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
58 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
59
60 if test x"$TargetPlatform" != x"$HostPlatform" ; then
61     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
62     exit 1
63 fi
64
65 exeext=''
66 #
67 # The following will be more difficult when we *are* cross-compiling.
68 # Suitable names to slam in *_CPP are in platform.h.in.
69 # We also record the architecture, vendor, and operating system (OS)
70 # separately.
71 case $HostPlatform in
72 alpha*-dec-osf[[12]]*)
73         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
74         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
75         BuildPlatform=alpha-dec-osf1  # hack
76         HostPlatform_CPP='alpha_dec_osf1'
77         HostArch_CPP='alpha'
78         HostVendor_CPP='dec'
79         HostOS_CPP='osf1'
80         ;;
81 alpha*-dec-osf[[345]]*)
82         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
83         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
84         BuildPlatform=alpha-dec-osf3  # hack
85         HostPlatform_CPP='alpha_dec_osf3'
86         HostArch_CPP='alpha'
87         HostVendor_CPP='dec'
88         HostOS_CPP='osf3'
89         ;;
90 alpha*-unknown-linux*)
91         HostPlatform=alpha-unknown-linux
92         TargetPlatform=alpha-unknown-linux
93         BuildPlatform=alpha-unknown-linux
94         HostPlatform_CPP='alpha_unknown_linux'
95         HostArch_CPP='alpha'
96         HostVendor_CPP='unknown'
97         HostOS_CPP='linux'
98         ;;
99 alpha*-unknown-freebsd*)
100         HostPlatform=alpha-unknown-freebsd
101         TargetPlatform=alpha-unknown-freebsd
102         BuildPlatform=alpha-unknown-freebsd
103         HostPlatform_CPP='alpha_unknown_freebsd'
104         HostArch_CPP='alpha'
105         HostVendor_CPP='unknown'
106         HostOS_CPP='freebsd'
107         ;;
108 arm*-linux*)
109         HostPlatform=arm-unknown-linux # hack again
110         TargetPlatform=arm-unknown-linux
111         BuildPlatform=arm-unknown-linux
112         HostPlatform_CPP='arm_unknown_linux'                 
113         HostArch_CPP='arm'
114         HostVendor_CPP='unknown'
115         HostOS_CPP='linux'
116         ;;
117 hppa*-*-linux*)
118         HostPlatform=hppa-unknown-linux # hack again
119         TargetPlatform=hppa-unknown-linux
120         BuildPlatform=hppa-unknown-linux
121         HostPlatform_CPP='hppa_unknown_linux'                
122         HostArch_CPP='hppa'
123         HostVendor_CPP='unknown'                             
124         HostOS_CPP='linux'
125         ;;
126 hppa1.1-hp-hpux*)
127         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
128         TargetPlatform=hppa1.1-hp-hpux
129         BuildPlatform=hppa1.1-hp-hpux
130         HostPlatform_CPP='hppa1_1_hp_hpux'
131         HostArch_CPP='hppa1_1'
132         HostVendor_CPP='hp'
133         HostOS_CPP='hpux'
134         ;;
135 i[[3456]]86-*-linuxaout*)
136         HostPlatform=i386-unknown-linuxaout   # hack again
137         TargetPlatform=i386-unknown-linuxaout
138         BuildPlatform=i386-unknown-linuxaout
139         HostPlatform_CPP='i386_unknown_linuxaout'
140         HostArch_CPP='i386'
141         HostVendor_CPP='unknown'
142         HostOS_CPP='linuxaout'
143         ;;
144 i[[3456]]86-*-linux*)
145         HostPlatform=i386-unknown-linux # hack again
146         TargetPlatform=i386-unknown-linux
147         BuildPlatform=i386-unknown-linux
148         HostPlatform_CPP='i386_unknown_linux'
149         HostArch_CPP='i386'
150         HostVendor_CPP='unknown'
151         HostOS_CPP='linux'
152         ;;
153 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
154         HostPlatform=i386-unknown-freebsd # hack again
155         TargetPlatform=i386-unknown-freebsd
156         BuildPlatform=i386-unknown-freebsd
157         HostPlatform_CPP='i386_unknown_freebsd'
158         HostArch_CPP='i386'
159         HostVendor_CPP='unknown'
160         HostOS_CPP='freebsd'
161         ;;
162 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
163         HostPlatform=i386-unknown-freebsd2 # hack again
164         TargetPlatform=i386-unknown-freebsd2
165         BuildPlatform=i386-unknown-freebsd2
166         HostPlatform_CPP='i386_unknown_freebsd2'
167         HostArch_CPP='i386'
168         HostVendor_CPP='unknown'
169         HostOS_CPP='freebsd2'
170         ;;
171 i[[3456]]86-*-netbsd*)
172         HostPlatform=i386-unknown-netbsd # hack again
173         TargetPlatform=i386-unknown-netbsd
174         BuildPlatform=i386-unknown-netbsd
175         HostPlatform_CPP='i386_unknown_netbsd'
176         HostArch_CPP='i386'
177         HostVendor_CPP='unknown'
178         HostOS_CPP='netbsd'
179         ;;
180 i[[3456]]86-*-openbsd*)
181         HostPlatform=i386-unknown-openbsd # hack again
182         TargetPlatform=i386-unknown-openbsd
183         BuildPlatform=i386-unknown-openbsd
184         HostPlatform_CPP='i386_unknown_openbsd'
185         HostArch_CPP='i386'
186         HostVendor_CPP='unknown'
187         HostOS_CPP='openbsd'
188         ;;
189 i[[3456]]86-*-solaris2*)
190         HostPlatform=i386-unknown-solaris2 # hack again
191         TargetPlatform=i386-unknown-solaris2
192         BuildPlatform=i386-unknown-solaris2
193         HostPlatform_CPP='i386_unknown_solaris2'
194         HostArch_CPP='i386'
195         HostVendor_CPP='unknown'
196         HostOS_CPP='solaris2'
197         ;;
198 i[[3456]]86-*-cygwin*)
199         HostPlatform=i386-unknown-cygwin32 # hack again
200         TargetPlatform=i386-unknown-cygwin32
201         BuildPlatform=i386-unknown-cygwin32
202         HostPlatform_CPP='i386_unknown_cygwin32'
203         HostArch_CPP='i386'
204         HostVendor_CPP='unknown'
205         HostOS_CPP='cygwin32'
206         exeext='.exe'
207         ;;
208 i[[3456]]86-*-mingw32*)
209         HostPlatform=i386-unknown-mingw32 # hack again
210         TargetPlatform=i386-unknown-mingw32
211         BuildPlatform=i386-unknown-mingw32
212         HostPlatform_CPP='i386_unknown_mingw32'
213         HostArch_CPP='i386'
214         HostVendor_CPP='unknown'
215         HostOS_CPP='mingw32'
216         exeext='.exe'
217         ;;
218 ia64-*-linux*)
219         HostPlatform=ia64-unknown-linux # hack again
220         TargetPlatform=ia64-unknown-linux
221         BuildPlatform=ia64-unknown-linux
222         HostPlatform_CPP='ia64_unknown_linux'
223         HostArch_CPP='ia64'
224         HostVendor_CPP='unknown'
225         HostOS_CPP='linux'
226         ;;
227 x86_64-*-linux*)
228         HostPlatform=x86_64-unknown-linux
229         TargetPlatform=x86_64-unknown-linux
230         BuildPlatform=x86_64-unknown-linux
231         HostPlatform_CPP='x86_64_unknown_linux'
232         HostArch_CPP='x86_64'
233         HostVendor_CPP='unknown'
234         HostOS_CPP='linux'
235         ;;
236 m68k-*-linux*)
237         HostPlatform=m68k-unknown-linux # hack again
238         TargetPlatform=m68k-unknown-linux                    
239         BuildPlatform=m68k-unknown-linux
240         HostPlatform_CPP='m68k_unknown_linux'
241         HostArch_CPP='m68k'
242         HostVendor_CPP='unknown'
243         HostOS_CPP='linux'
244         ;;
245 m68k-next-nextstep2)
246         HostPlatform_CPP='m68k_next_nextstep2'
247         HostArch_CPP='m68k'
248         HostVendor_CPP='next'
249         HostOS_CPP='nextstep2'
250         ;;
251 m68k-next-nextstep3)
252         HostPlatform_CPP='m68k_next_nextstep3'
253         HostArch_CPP='m68k'
254         HostVendor_CPP='next'
255         HostOS_CPP='nextstep3'
256         ;;
257 i[[3456]]86-next-nextstep3)
258         HostPlatform=i386-next-nextstep3 # hack again
259         TargetPlatform=i386-next-nextstep3
260         BuildPlatform=i386-next-nextstep3
261         HostPlatform_CPP='i386_next_nextstep3'
262         HostArch_CPP='i386'
263         HostVendor_CPP='next'
264         HostOS_CPP='nextstep3'
265         ;;
266 m68k-*-openbsd*)
267         HostPlatform=m68k-unknown-openbsd
268         TargetPlatform=m68k-unknown-openbsd
269         BuildPlatform=m68k-unknown-openbsd
270         HostPlatform_CPP='m68k_unknown_openbsd'
271         HostArch_CPP='m68k'
272         HostVendor_CPP='unknown'
273         HostOS_CPP='openbsd'
274         ;;
275 m68k-*-netbsd*)
276         HostPlatform=m68k-unknown-netbsd
277         TargetPlatform=m68k-unknown-netbsd
278         BuildPlatform=m68k-unknown-netbsd
279         HostPlatform_CPP='m68k_unknown_netbsd'
280         HostArch_CPP='m68k'
281         HostVendor_CPP='unknown'
282         HostOS_CPP='netbsd'
283         ;;
284 m68k-sun-sunos4*)
285         HostPlatform=m68k-sun-sunos4
286         TargetPlatform=m68k-sun-sunos4 #hack
287         BuildPlatform=m68k-sun-sunos4 #hack
288         HostPlatform_CPP='m68k_sun_sunos4'
289         HostArch_CPP='m68k'
290         HostVendor_CPP='sun'
291         HostOS_CPP='sunos4'
292         ;;
293 mips-*-linux*)
294         HostPlatform=mips-unknown-linux # hack again
295         TargetPlatform=mips-unknown-linux
296         BuildPlatform=mips-unknown-linux
297         HostPlatform_CPP='mips_unknown_linux'
298         HostArch_CPP='mips'
299         HostVendor_CPP='unknown'
300         HostOS_CPP='linux'
301         ;;
302 mips-dec-ultrix*)
303         HostPlatform_CPP='mips_dec_ultrix'
304         HostArch_CPP='mipsel'   # NB a little different
305         HostVendor_CPP='dec'
306         HostOS_CPP='ultrix'
307         ;;
308 mips-sgi-irix*)
309         HostPlatform=mips-sgi-irix
310         TargetPlatform=mips-sgi-irix #hack
311         BuildPlatform=mips-sgi-irix #hack
312         HostPlatform_CPP='mips_sgi_irix'
313         HostArch_CPP='mipseb'   # NB a little different
314         HostVendor_CPP='sgi'
315         HostOS_CPP='irix'
316         ;;
317 rs6000-ibm-aix*)
318         HostPlatform=rs6000-ibm-aix
319         TargetPlatform=rs6000-ibm-aix #hack
320         BuildPlatform=rs6000-ibm-aix #hack
321         HostPlatform_CPP='rs6000_ibm_aix'
322         HostArch_CPP='rs6000'
323         HostVendor_CPP='ibm'
324         HostOS_CPP='aix'
325         ;;
326 powerpc-ibm-aix*)
327         HostPlatform=powerpc-ibm-aix
328         TargetPlatform=powerpc-ibm-aix #hack
329         BuildPlatform=powerpc-ibm-aix #hack
330         HostPlatform_CPP='powerpc_ibm_aix'
331         HostArch_CPP='powerpc'
332         HostVendor_CPP='ibm'
333         HostOS_CPP='aix'
334         ;;
335 powerpc-apple-darwin*)
336         HostPlatform=powerpc-apple-darwin
337         TargetPlatform=powerpc-apple-darwin #hack
338         BuildPlatform=powerpc-apple-darwin #hack
339         HostPlatform_CPP='powerpc_apple_darwin'
340         HostArch_CPP='powerpc'
341         HostVendor_CPP='apple'
342         HostOS_CPP='darwin'
343         ;;
344 powerpc-unknown-linux*)
345         HostPlatform=powerpc-unknown-linux
346         TargetPlatform=powerpc-unknown-linux
347         BuildPlatform=powerpc-unknown-linux
348         HostPlatform_CPP='powerpc_unknown_linux'
349         HostArch_CPP='powerpc'
350         HostVendor_CPP='unknown'
351         HostOS_CPP='linux'
352         ;;
353 s390-ibm-linux*)
354        HostPlatform=s390-ibm-linux
355        TargetPlatform=s390-ibm-linux #hack
356        BuildPlatform=s390-ibm-linux #hack
357         HostPlatform_CPP='s390_ibm_linux'
358         HostArch_CPP='s390'
359         HostVendor_CPP='ibm'
360         HostOS_CPP='linux'
361         ;;
362 sparc-sun-sunos4*)
363         HostPlatform=sparc-sun-sunos4
364         TargetPlatform=sparc-sun-sunos4 #hack
365         BuildPlatform=sparc-sun-sunos4 #hack
366         HostPlatform_CPP='sparc_sun_sunos4'
367         HostArch_CPP='sparc'
368         HostVendor_CPP='sun'
369         HostOS_CPP='sunos4'
370         ;;
371 sparc-sun-solaris2*)
372         HostPlatform=sparc-sun-solaris2
373         TargetPlatform=sparc-sun-solaris2 #hack
374         BuildPlatform=sparc-sun-solaris2 #hack
375         HostPlatform_CPP='sparc_sun_solaris2'
376         HostArch_CPP='sparc'
377         HostVendor_CPP='sun'
378         HostOS_CPP='solaris2'
379         ;;
380 sparc*-linux*)
381         HostPlatform=sparc-unknown-linux
382         TargetPlatform=sparc-unknown-linux
383         BuildPlatform=sparc-unknown-linux
384         HostPlatform_CPP='sparc_unknown_linux'
385         HostArch_CPP='sparc'
386         HostVendor_CPP='unknown'
387         HostOS_CPP='linux'
388         ;;
389 sparc-*-openbsd*)
390         HostPlatform=sparc-unknown-openbsd
391         TargetPlatform=sparc-unknown-openbsd
392         BuildPlatform=sparc-unknown-openbsd
393         HostPlatform_CPP='sparc_unknown_openbsd'
394         HostArch_CPP='sparc'
395         HostVendor_CPP='unknown'
396         HostOS_CPP='openbsd'
397         ;;
398 *)
399         echo "Unrecognised platform: $HostPlatform"
400         exit 1
401         ;;
402 esac
403 echo "Canonicalised to: $HostPlatform"
404 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
405 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
406
407 BuildPlatform_CPP=$HostPlatform_CPP
408 TargetPlatform_CPP=$HostPlatform_CPP
409 BuildArch_CPP=$HostArch_CPP
410 TargetArch_CPP=$HostArch_CPP
411 BuildOS_CPP=$HostOS_CPP
412 HostOS_Full=$host_os
413 TargetOS_CPP=$HostOS_CPP
414 BuildVendor_CPP=$HostVendor_CPP
415 TargetVendor_CPP=$HostVendor_CPP
416
417 AC_SUBST(BuildPlatform)
418 AC_SUBST(HostPlatform)
419 AC_SUBST(TargetPlatform)
420 AC_SUBST(HostPlatform_CPP)
421 AC_SUBST(BuildPlatform_CPP)
422 AC_SUBST(TargetPlatform_CPP)
423
424 AC_SUBST(HostArch_CPP)
425 AC_SUBST(BuildArch_CPP)
426 AC_SUBST(TargetArch_CPP)
427
428 AC_SUBST(HostOS_CPP)
429 AC_SUBST(HostOS_Full)
430 AC_SUBST(BuildOS_CPP)
431 AC_SUBST(TargetOS_CPP)
432
433 AC_SUBST(HostVendor_CPP)
434 AC_SUBST(BuildVendor_CPP)
435 AC_SUBST(TargetVendor_CPP)
436
437 AC_SUBST(exeext)
438
439 dnl --------------------------------------------------------------
440 dnl * Calculate absolute path to build tree
441 dnl --------------------------------------------------------------
442
443 AC_MSG_CHECKING(for path to top of build tree)
444
445 hardtop=`pwd`
446
447 dnl Remove common automounter nonsense
448 dnl
449 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
450
451 dnl Find 'hardtop_plat', the native format for 'hardtop' (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
452 dnl
453 case $HostPlatform in
454   i386-unknown-mingw32 | i386-unknown-cygwin32)
455         # convert $hardtop to a path that mingw will understand too
456         cyghardtop=${hardtop}
457         hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
458         hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
459         ;;
460   *)
461         hardtop_plat=${hardtop}
462         ;;
463 esac
464 AC_SUBST(hardtop)
465 AC_SUBST(hardtop_plat)
466
467 AC_MSG_RESULT(${hardtop})
468
469 dnl --------------------------------------------------------------
470 dnl * Project specific configuration options
471 dnl --------------------------------------------------------------
472 dnl What follows is a bunch of options that can either be configured
473 dnl through command line options to the configure script or by
474 dnl supplying defns in the build tree's mk/build.mk. Having the option to
475 dnl use either is considered a Feature.
476
477 dnl ** What command to use to compile compiler sources ?
478 dnl --------------------------------------------------------------
479
480 AC_ARG_WITH(ghc,
481 [  --with-ghc=<haskell compiler>
482         Use a command different from 'ghc' to compile GHC-specific Haskell code
483             (including GHC itself).
484 ],
485 [ WithGhc="$withval" ],
486
487   if test "$GHC" = ""; then
488     AC_PATH_PROG(GHC,ghc)
489   fi
490   WithGhc=$GHC
491 ]
492 )
493 AC_SUBST(WithGhc)
494
495 AC_ARG_WITH(hc,
496 [  --with-hc=<haskell compiler>
497         Use a command different from 'ghc' to compile generic Haskell code.
498 ],
499 [WithHc="$withval"],
500 [WithHc=$WithGhc]
501 )
502 AC_SUBST(WithHc)
503
504 if test "$WithGhc" != ""; then
505   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
506   AC_SUBST(GhcVersion)dnl
507   AC_SUBST(GhcMajVersion)dnl
508   AC_SUBST(GhcMinVersion)dnl
509   AC_SUBST(GhcPatchLevel)dnl
510 fi
511
512 AC_PATH_PROGS(NHC,nhc nhc98)
513 AC_PATH_PROG(HBC,hbc)
514
515 dnl ** Which gcc to use?
516 dnl --------------------------------------------------------------
517 AC_ARG_WITH(gcc,
518 [  --with-gcc=<gcc command>
519         Use a different command instead of 'gcc' for the GNU C compiler.
520 ],
521 [WhatGccIsCalled="$withval"
522  if test "x$HostPlatform" = "xi386-unknown-mingw32"; then
523     # Canonicalise to <drive>:/path/to/gcc
524     withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
525  fi;
526  CC="$withval"],
527 [WhatGccIsCalled="gcc"]
528 )
529 AC_SUBST(WhatGccIsCalled)
530
531 dnl ** Booting from .hc files?
532 dnl --------------------------------------------------------------
533 AC_ARG_ENABLE(hc-boot,
534 [  --enable-hc-boot
535         Boot the Glasgow Haskell Compiler from intermediate .hc files.
536         (This option is mostly of interest to porters.)
537 ],
538 [BootingFromHc=YES],
539 [BootingFromHc=NO]
540 )
541 AC_SUBST(BootingFromHc)
542
543 dnl ** Booting from unregisterised .hc files?
544 dnl --------------------------------------------------------------
545 AC_ARG_ENABLE(hc-boot-unregisterised,
546 [  --enable-hc-boot-unregisterised
547         With --enable-hc-boot, treat the intermediate .hc files as
548         unregisterised rather than registerised code.
549         (This option is mostly of interest to porters.)
550 ],
551 [BootingFromUnregisterisedHc=YES],
552 [BootingFromUnregisterisedHc=NO]
553 )
554 AC_SUBST(BootingFromUnregisterisedHc)
555
556 if test "$BootingFromHc" = "NO"; then
557 if test "$BootingFromUnregisterisedHc" = "YES"; then
558 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
559 fi;
560 fi;
561
562 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
563 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
564 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
565 fi;
566
567 dnl ** Enable multi-thread friendly RTS?
568 dnl --------------------------------------------------------------
569 AC_ARG_ENABLE(threaded-rts,
570 [  --enable-threaded-rts
571         Support better interop with OS threads.
572 ],
573 [ThreadedRts=YES],
574 [ThreadedRts=NO]
575 )
576 AC_SUBST(ThreadedRts)
577
578 dnl ** Enable the construction of Win32 DLLs?
579 dnl --------------------------------------------------------------
580 dnl
581 dnl [ The ability to build the RTS and libraries as separate DLLs used
582 dnl   to be supported, but isn't currently (updates to the RTS, compiler 
583 dnl   and build system would be required to bring it back again.)
584 dnl   Hence, exposing it as an option is false advertisement, so better
585 dnl   disable it to avoid confusion (but leave it commented-out rather
586 dnl   than removed in order to remind ourselves to bring back the 
587 dnl   feature at some stage.) ]
588 dnl
589 dnl AC_ARG_ENABLE(win32-dlls,
590 dnl [  --enable-win32-dlls
591 dnl         If on a Win32 platform running mingw32/cygwin, enable the
592 dnl     construction of DLLs containing ghc-compiled code.
593 dnl ],
594 dnl [
595 dnl case $HostOS_CPP in
596 dnl cygwin32) ;;
597 dnl mingw32)  ;;
598 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
599 dnl       exit 1
600 dnl       ;;
601 dnl esac
602 dnl EnableWin32DLLs=YES
603 dnl ],
604 dnl [EnableWin32DLLs=NO]
605 dnl )
606 dnl AC_SUBST(EnableWin32DLLs)
607 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
608 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
609 dnl fi
610
611 dnl ** Enable the building of the ObjectIO?
612 dnl --------------------------------------------------------------
613 AC_ARG_ENABLE(objectio,
614 [  --enable-objectio
615         Build ObjectIO, a portable GUI library for Haskell.
616 ],
617 [GhcLibsWithObjectIO=YES],
618 [GhcLibsWithObjectIO=NO]
619 )
620 AC_SUBST(GhcLibsWithObjectIO)
621
622 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
623 dnl --------------------------------------------------------------
624 AC_ARG_ENABLE(hopengl,
625 [  --enable-hopengl
626         Build HOpenGL, a Haskell binding for OpenGL/GLUT.
627         On Mac OS X, use --enable-hopengl=x11 to use X11 instead
628         of the "native" libraries.
629 ],
630 [GhcLibsWithHOpenGL=YES],
631 [GhcLibsWithHOpenGL=NO]
632 )
633 UseQuartzOpenGL=NO
634 if test x"$TargetOS_CPP" = x"darwin"; then
635   if test x"$enable_hopengl" != x"x11"; then
636     AC_DEFINE([USE_QUARTZ_OPENGL], [1],
637               [Define to 1 if native OpenGL should be used on Mac OS X])
638     UseQuartzOpenGL=YES
639   fi
640 fi
641
642 AC_SUBST(GhcLibsWithHOpenGL)
643
644 dnl ** .NET interop support?
645 dnl --------------------------------------------------------------
646 AC_ARG_ENABLE(dotnet,
647 [  --enable-dotnet
648         Build .NET interop layer.
649 ],
650 [DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])],
651 [DotnetSupport=NO]
652 )
653 AC_SUBST(DotnetSupport)
654
655 dnl --------------------------------------------------------------
656 dnl End of configure script option section
657 dnl --------------------------------------------------------------
658
659
660 dnl --------------------------------------------------------------
661 dnl * General configuration checks
662 dnl --------------------------------------------------------------
663
664 dnl ** Can the unix package be built?
665 dnl --------------------------------------------------------------
666
667 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
668    GhcLibsWithUnix=NO
669 else
670    GhcLibsWithUnix=YES
671 fi
672 AC_SUBST([GhcLibsWithUnix])
673
674 dnl ** does #! work?
675 AC_SYS_INTERPRETER()
676
677 dnl ** look for `perl', but only in /bin on Windows
678 case $HostOS_CPP in
679 cygwin32|mingw32)
680       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
681       if test -z "$PerlCmd"; then
682          echo "You must install the version of Perl shipped with GHC"
683          echo "(or a compatible one) in /bin."
684          exit 1
685       fi
686    ;;
687 *)
688    AC_PATH_PROG(PerlCmd,perl)
689    if test -z "$PerlCmd"; then
690       echo "You must install perl before you can continue"
691       echo "Perhaps it is already installed, but not in your PATH?"
692       exit 1
693    else
694    FPTOOLS_CHECK_PERL_VERSION
695    fi
696    ;;
697 esac
698
699 dnl ** does #! path/to/perl work? (sometimes it's too long...)
700 FPTOOLS_SHEBANG_PERL
701
702 dnl ** check for Python
703 AC_PATH_PROG(PythonCmd,python)
704
705 dnl ** look for GCC and find out which version
706 dnl     Figure out which C compiler to use.  Gcc is preferred.
707 dnl     If gcc, make sure it's at least 2.1
708 dnl
709 AC_PROG_CC
710 FPTOOLS_HAVE_GCC
711 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
712
713 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
714 AC_PROG_CPP
715
716 dnl ** Without optimization some INLINE trickery fails for GHCi
717 SRC_CC_OPTS="-O"
718
719 dnl ** Try to add -mno-cygwin to the C compiler options
720 FP_CHECK_FLAG([-mno-cygwin], [
721 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
722 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
723 AC_SUBST(SRC_CC_OPTS)
724
725 dnl ** figure out how to do context diffs
726 FP_PROG_CONTEXT_DIFF
727
728 dnl ** Find find command (for Win32's benefit)
729 FP_PROG_FIND
730
731 dnl ** figure out how to do a BSD-ish install
732 AC_PROG_INSTALL
733
734 dnl If you can run configure, you certainly have /bin/sh
735 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
736
737 dnl ** how to invoke `ar' and `ranlib'
738 FPTOOLS_PROG_AR_AND_RANLIB
739
740 dnl ** Check to see whether ln -s works
741 AC_PROG_LN_S
742
743
744 dnl ** Find the path to sed
745 AC_PATH_PROG(SedCmd,sed)
746
747
748 dnl ** check for time command
749 AC_PATH_PROG(TimeCmd,time)
750
751 dnl ** check for tar
752 dnl   if GNU tar is named gtar, look for it first.
753 AC_PATH_PROGS(TarCmd,gtar tar,tar)
754
755 dnl ** check for jade/openjade & determine a working catalog
756 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
757 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl, 
758                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
759 if test -z "$Catalog"; then
760   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
761 fi
762 case $Catalog in
763    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
764         Catalog=
765         ;;
766    glafp*) 
767         case $HostOS_CPP in
768            mingw32)
769               Catalog=`cygpath -w $hardtop/$Catalog`
770               ;;
771            *) Catalog=$hardtop/$Catalog
772               ;;
773         esac
774    ;;
775 esac   
776 AC_SUBST(Catalog)
777
778
779 dnl ** check for ghc-pkg command
780 changequote(, )dnl
781 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
782 changequote([, ])dnl
783 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
784    GhcPkgCmd=$ghc_pkg_guess
785    AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
786 else
787    AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
788 fi
789
790 AC_ARG_WITH(greencard,
791 [  --with-greencard=<greencard compiler>
792         Use a command different from 'greencard' to compile GreenCard files
793 ],
794 [
795 GreenCardCmd=$withval;
796 FPTOOLS_GREENCARD(3.00)
797 ]
798 )
799
800 AC_ARG_ENABLE(src-tree-happy,
801 [  --enable-src-tree-happy
802         Build and use source tree (fptools/happy) version of Happy.
803 ],
804 [UseSrcTreeHappy=YES],
805 [UseSrcTreeHappy=NO]
806 )
807 dnl ** check for installed happy binary + version
808 dnl    (don't do it if we're booting from .hc files though.)
809 if test "$BootingFromHc" = "NO"; then
810 FPTOOLS_HAPPY
811 fi;
812
813 AC_ARG_ENABLE(src-tree-haddock,
814 [  --enable-src-tree-haddock
815         Build and use source tree (fptools/haddock) version of Haddock.
816 ],
817 [UseSrcTreeHaddock=YES],
818 [UseSrcTreeHaddock=NO]
819 )
820 dnl ** check for installed haddock
821 FPTOOLS_HADDOCK
822
823 AC_ARG_ENABLE(src-tree-alex,
824 [  --enable-src-tree-alex
825         Build and use source tree (fptools/alex) version of Alex.
826 ],
827 [UseSrcTreeAlex=YES],
828 [UseSrcTreeAlex=NO]
829 )
830 dnl ** check for installed alex binary + version
831 dnl    (don't do it if we're booting from .hc files though.)
832 if test "$BootingFromHc" = "NO"; then
833 FPTOOLS_ALEX
834 fi;
835
836 dnl --------------------------------------------------
837 dnl ### program checking section ends here ###
838 dnl --------------------------------------------------
839
840 dnl --------------------------------------------------
841 dnl * Platform header file and syscall feature tests
842 dnl ### checking the state of the local header files and syscalls ###
843
844 dnl ** check for full ANSI header (.h) files
845 AC_HEADER_STDC
846
847 dnl ** Enable large file support.  NB. do this before testing the type of
848 dnl    off_t, because it will affect the result of that test.
849 AC_SYS_LARGEFILE
850
851 dnl ** check for specific header (.h) files that we are interested in
852 AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h locale.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h bfd.h winsock.h pthread.h sys/uio.h)
853 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
854
855 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
856 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
857
858 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
859   GhcLibsWithReadline=YES
860   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
861 else
862   GhcLibsWithReadline=NO
863   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
864 fi
865 AC_SUBST(GhcLibsWithReadline)
866
867 dnl ** check for DOS include files
868 AC_CHECK_HEADERS(dos.h conio.h io.h std.h) 
869
870 dnl ** check for Windows include files
871 AC_CHECK_HEADERS(windows.h)
872
873 dnl ** check for OpenGL include files
874 fp_save_cppflags="$CPPFLAGS"
875 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
876 if test $UseQuartzOpenGL = YES ; then
877   AC_CHECK_HEADERS(OpenGL/gl.h)
878 else
879   AC_CHECK_HEADERS(GL/gl.h)
880 fi
881 CPPFLAGS="$fp_save_cppflags"
882
883 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
884 AC_HEADER_TIME
885
886 dnl dynamic loading include files
887 AC_CHECK_HEADERS(dlfcn.h dl.h) 
888
889 dnl ** check for farcalloc (in bcc)
890 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
891
892 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
893 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
894
895 dnl ** check for POSIX regex
896 HavePosixRegex=NO
897 AC_CHECK_HEADERS(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
898 AC_SUBST(HavePosixRegex)
899
900 dnl ** how do we get a timezone name, and UTC offset ?
901 AC_STRUCT_TIMEZONE
902
903 dnl ** do we have altzone?
904 FP_DECL_ALTZONE
905
906 dnl ** does struct stat contain st_blksize?
907 AC_STRUCT_ST_BLKSIZE
908
909 dnl ** do we have long longs?
910 AC_CHECK_TYPES([long long])
911
912 dnl ** check what fields struct msghdr contains
913 AC_CHECK_HEADERS([sys/types.h sys/socket.h sys/uio.h])
914 AC_CHECK_MEMBERS([struct msghdr.msg_control, struct msghdr.msg_accrights], [], [], [#if HAVE_SYS_TYPES_H
915 # include <sys/types.h>
916 #endif
917 #if HAVE_SYS_SOCKET_H
918 # include <sys/socket.h>
919 #endif
920 #if HAVE_SYS_UIO_H
921 # include <sys/uio.h>
922 #endif])
923
924 dnl ** what are the sizes of various types
925 AC_CHECK_SIZEOF(char,               1)
926 AC_CHECK_SIZEOF(double,             8)
927 AC_CHECK_SIZEOF(float,              4)
928 AC_CHECK_SIZEOF(int,                4)
929 AC_CHECK_SIZEOF(long,               4)
930 if test "$ac_cv_type_long_long" = yes; then
931 AC_CHECK_SIZEOF(long long,          8)
932 fi
933 AC_CHECK_SIZEOF(short,              2)
934 AC_CHECK_SIZEOF(unsigned char,      1)
935 AC_CHECK_SIZEOF(unsigned int,       4)
936 AC_CHECK_SIZEOF(unsigned long,      4)
937 if test "$ac_cv_type_long_long" = yes; then
938 AC_CHECK_SIZEOF(unsigned long long, 8)
939 fi
940 AC_CHECK_SIZEOF(unsigned short,     2)
941 AC_CHECK_SIZEOF(void *,             4)
942
943 dnl ** what are alignment constraints on various types
944 FP_CHECK_ALIGNMENT(char)
945 FP_CHECK_ALIGNMENT(double)
946 FP_CHECK_ALIGNMENT(float)
947 FP_CHECK_ALIGNMENT(int)
948 FP_CHECK_ALIGNMENT(long)
949 if test "$ac_cv_type_long_long" = yes; then
950 FP_CHECK_ALIGNMENT(long long)
951 fi
952 FP_CHECK_ALIGNMENT(short)
953 FP_CHECK_ALIGNMENT(unsigned char)
954 FP_CHECK_ALIGNMENT(unsigned int)
955 FP_CHECK_ALIGNMENT(unsigned long)
956 if test "$ac_cv_type_long_long" = yes; then
957 FP_CHECK_ALIGNMENT(unsigned long long)
958 fi
959 FP_CHECK_ALIGNMENT(unsigned short)
960 FP_CHECK_ALIGNMENT(void *)
961
962 dnl ** map standard C types and ISO types to Haskell types
963 FPTOOLS_CHECK_HTYPE(char)
964 FPTOOLS_CHECK_HTYPE(signed char)
965 FPTOOLS_CHECK_HTYPE(unsigned char)
966 FPTOOLS_CHECK_HTYPE(short)
967 FPTOOLS_CHECK_HTYPE(unsigned short)
968 FPTOOLS_CHECK_HTYPE(int)
969 FPTOOLS_CHECK_HTYPE(unsigned int)
970 FPTOOLS_CHECK_HTYPE(long)
971 FPTOOLS_CHECK_HTYPE(unsigned long)
972 if test "$ac_cv_type_long_long" = yes; then
973 FPTOOLS_CHECK_HTYPE(long long)
974 FPTOOLS_CHECK_HTYPE(unsigned long long)
975 fi
976 FPTOOLS_CHECK_HTYPE(float)
977 FPTOOLS_CHECK_HTYPE(double)
978 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
979 FPTOOLS_CHECK_HTYPE(size_t)
980 FPTOOLS_CHECK_HTYPE(wchar_t)
981 dnl Int32 is a HACK for non-ISO C compilers
982 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
983 FPTOOLS_CHECK_HTYPE(clock_t)
984 FPTOOLS_CHECK_HTYPE(time_t)
985 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
986 FPTOOLS_CHECK_HTYPE(ino_t)
987 FPTOOLS_CHECK_HTYPE(mode_t)
988 FPTOOLS_CHECK_HTYPE(off_t)
989 FPTOOLS_CHECK_HTYPE(pid_t)
990 FPTOOLS_CHECK_HTYPE(gid_t)
991 FPTOOLS_CHECK_HTYPE(uid_t)
992 FPTOOLS_CHECK_HTYPE(cc_t)
993 FPTOOLS_CHECK_HTYPE(speed_t)
994 FPTOOLS_CHECK_HTYPE(tcflag_t)
995 FPTOOLS_CHECK_HTYPE(blkcnt_t)
996 FPTOOLS_CHECK_HTYPE(nlink_t)
997 FPTOOLS_CHECK_HTYPE(ssize_t)
998 FPTOOLS_CHECK_HTYPE(rlim_t)
999 FPTOOLS_CHECK_HTYPE(wint_t)
1000
1001 dnl ** Map OpenGL data types to Haskell types
1002 if test $GhcLibsWithHOpenGL = YES ; then
1003 FPTOOLS_CHECK_HTYPE(GLboolean)
1004 FPTOOLS_CHECK_HTYPE(GLbyte)
1005 FPTOOLS_CHECK_HTYPE(GLubyte)
1006 FPTOOLS_CHECK_HTYPE(GLshort)
1007 FPTOOLS_CHECK_HTYPE(GLushort)
1008 FPTOOLS_CHECK_HTYPE(GLint)
1009 FPTOOLS_CHECK_HTYPE(GLuint)
1010 FPTOOLS_CHECK_HTYPE(GLsizei)
1011 FPTOOLS_CHECK_HTYPE(GLenum)
1012 FPTOOLS_CHECK_HTYPE(GLbitfield)
1013 FPTOOLS_CHECK_HTYPE(GLfloat)
1014 FPTOOLS_CHECK_HTYPE(GLclampf)
1015 FPTOOLS_CHECK_HTYPE(GLdouble)
1016 FPTOOLS_CHECK_HTYPE(GLclampd)
1017 fi
1018
1019 FP_CHECK_CONSTS([E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV], [#include <stdio.h>
1020 #include <errno.h>])
1021
1022 dnl ** can we open files in binary mode?
1023 FP_CHECK_CONST([O_BINARY], [#include <fcntl.h>], [0])
1024
1025 dnl ** check for GetModuleFileName and WinExec (windows only)
1026 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
1027 dnl Doesn't work because the linker can't see the functions if
1028 dnl you omit the #include <windows.h>.  (I've no idea why not...)
1029
1030 FPTOOLS_TRY_LINK_NOWARN(,[
1031 #if HAVE_WINDOWS_H
1032 #include <windows.h>
1033 #endif
1034 main() { 
1035   WinExec("",0);
1036   exit(0);
1037 }
1038 ],
1039 [have_winexec=1],
1040 [have_winexec=0])
1041 if test "$have_winexec" = "1"; then
1042   AC_DEFINE([HAVE_WINEXEC], [1], [Define to 1 if you have the WinExec function.])
1043 fi
1044
1045 FPTOOLS_TRY_LINK_NOWARN(,[
1046 #if HAVE_WINDOWS_H
1047 #include <windows.h>
1048 #endif
1049 main() { 
1050   char* dir;
1051   GetModuleFileName((HMODULE)0,dir,0);
1052   exit(0);
1053 }
1054 ],
1055 [have_getmodulefilename=1],
1056 [have_getmodulefilename=0])
1057 if test "$have_getmodulefilename" = "1"; then
1058 AC_DEFINE([HAVE_GETMODULEFILENAME], [1], [Define to 1 if you have the GetModuleFileName function.])
1059 fi
1060
1061 dnl ** check return type of signal handlers
1062 dnl Foo: assumes we can use prototypes.
1063 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1064 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
1065 dnl [AC_TRY_COMPILE([#include <sys/types.h>
1066 dnl #include <signal.h>
1067 dnl #ifdef signal
1068 dnl #undef signal
1069 dnl #endif
1070 dnl void (*signal (int, void (*)(int)))(int);
1071 dnl ],
1072 dnl [int i;], 
1073 dnl ac_cv_type_signal_handler=void_int,
1074 dnl ac_cv_type_signal_handler=int_void)])
1075 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1076 dnl AC_DEFINE(VOID_INT_SIGNALS)
1077 dnl fi
1078
1079 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1080 AC_TYPE_SIGNAL
1081 if test "$ac_cv_type_signal" = void; then
1082   AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
1083 fi
1084
1085 dnl ** check for more functions
1086 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
1087 AC_CHECK_FUNCS(strcmp)
1088 AC_CHECK_FUNCS(realpath _fullpath)  
1089 AC_CHECK_FUNCS(PBHSetVolSync macsystem)  
1090 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
1091 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
1092 AC_CHECK_FUNCS(snprintf  _snprintf )  
1093 AC_CHECK_FUNCS(popen     _popen )  
1094 AC_CHECK_FUNCS(pclose    _pclose )  
1095 AC_CHECK_FUNCS(setenv unsetenv)
1096
1097
1098 dnl ** check for specific library functions that we are interested in
1099 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat siginterrupt symlink sysconf timelocal times vadvise localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
1100
1101 dnl ** Solaris2 needs additionl flag for getpw*_r()
1102 case "$TargetPlatform" in
1103   *-solaris2*)
1104     unix_SRC_HSC2HS_OPTS="-D_POSIX_PTHREAD_SEMANTICS"
1105     AC_SUBST(unix_SRC_HSC2HS_OPTS)
1106   ;;
1107 esac
1108
1109 dnl ** check whether this machine has gmp3 installed
1110 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1111   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1112     HaveLibGmp=NO; LibGmp=not-installed))
1113 AC_SUBST(HaveLibGmp)
1114 AC_SUBST(LibGmp)
1115
1116 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1117 HaveFrameworkHaskellSupport=NO
1118 if test $HostPlatform = "powerpc-apple-darwin"; then
1119  AC_MSG_CHECKING([for HaskellSupport.framework])
1120  save_libs="$LIBS"
1121  LIBS="-framework HaskellSupport"
1122  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1123  if test $HaveFrameworkHaskellSupport = YES; then
1124   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1125  fi;
1126  LIBS="$save_libs"
1127  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1128 fi;
1129 AC_SUBST(HaveFrameworkHaskellSupport)
1130
1131 dnl ** check for mingwex library
1132 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1133 AC_SUBST(HaveLibMingwEx)
1134
1135 if test $HaveLibMingwEx = YES ; then
1136   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1137 fi
1138
1139 if test "$HaveLibGmp" = "NO"; then
1140 if test "$HostArch_CPP" = "ia64" -o "$HostArch_CPP" = "mipseb" ; then
1141 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64 or mips64).])
1142 fi;
1143 fi;
1144
1145 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1146 dnl    the order of these tests matters: bfd needs liberty
1147 AC_CHECK_LIB(iberty, xmalloc)
1148 AC_CHECK_LIB(bfd,    bfd_init)
1149
1150 dnl ** check for wide-char classifications
1151 dnl FreeBSD has an emtpy wctype.h, so test one of the affected
1152 dnl functions if it's really there.
1153 AC_CHECK_HEADERS(wctype.h,
1154   [AC_CHECK_FUNCS(iswspace)]
1155 )
1156
1157 dnl ** check for readline, for Hugs and hslibs' Readline
1158 dnl ncurses supersedes termcap and curses, but for compatibility,
1159 dnl we have to check for all...
1160 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1161   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1162     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1163       HaveLibTermcap=NO; LibTermcap=not-installed)))
1164
1165 if test $HaveLibTermcap = YES ; then
1166   LIBS="-l$LibTermcap $LIBS"
1167   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1168 fi
1169
1170 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1171   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1172   LibsReadline="readline $LibTermcap"
1173 else
1174   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1175   LibsReadline=
1176 fi
1177 AC_SUBST(LibsReadline)
1178
1179 if test "$HaveLibReadline"; then
1180   AC_CHECK_LIB(readline, rl_erase_empty_line,
1181     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1182     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1183   AC_CHECK_LIB(readline, rl_free_undo_list,
1184     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1185     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1186 else
1187   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1188   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1189 fi
1190
1191 dnl ** check for math library
1192 FPTOOLS_CHECK_LIBM()
1193 AC_SUBST(LIBM)
1194
1195 dnl ** check for X Window System
1196 AC_PATH_XTRA()
1197
1198 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1199 if test $GhcLibsWithHOpenGL = YES ; then
1200   if test $UseQuartzOpenGL = YES ; then
1201     dnl Take a shortcut for Mac OS X native OpenGL:
1202     dnl It's in a non-standard location, but it's always there
1203     GL_CFLAGS=
1204         GL_LIBS=
1205         GLUT_LIBS=
1206         AC_SUBST(GL_CFLAGS)
1207         AC_SUBST(GL_LIBS)
1208         AC_SUBST(GLUT_LIBS)
1209   else
1210     FPTOOLS_HAVE_OPENGL
1211   fi
1212 fi
1213
1214 dnl ################################################################
1215 dnl Check for libraries
1216 dnl ################################################################
1217
1218 dnl ** check for libdl & RTLD_NEXT
1219
1220 dnl (Mac OS X only) ... but don't check if we already have the
1221 dnl HaskellSupport.framework
1222
1223 if test $HaveFrameworkHaskellSupport = YES; then
1224     HaveLibDL=NO
1225     HaveRtldNext=NO
1226     HaveRtldLocal=YES
1227     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1228     HaveRtldGlobal=YES
1229     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1230     HaveRtldNow=YES
1231     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1232     AC_SUBST(HaveLibDL)
1233     AC_SUBST(HaveRtldNext)
1234     AC_SUBST(HaveRtldLocal)
1235     AC_SUBST(HaveRtldGlobal)
1236     AC_SUBST(HaveRtldNow)
1237 else
1238     AC_CHECK_LIB(dl, dlopen, 
1239         [HaveLibDL=YES
1240          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1241          LIBS="$LIBS -ldl"], 
1242         [HaveLibDL=NO])
1243     AC_CHECK_FUNCS(dlopen)
1244     AC_SUBST(HaveLibDL)
1245
1246     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1247     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1248     AC_EGREP_CPP(yes,
1249     [
1250      #include <dlfcn.h>
1251      #ifdef RTLD_NEXT
1252             yes
1253      #endif
1254     ], [
1255       AC_MSG_RESULT(yes)
1256       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1257       HaveRtldNext=YES
1258     ], [
1259       AC_MSG_RESULT(no)
1260       HaveRtldNext=NO
1261       ])    
1262     AC_SUBST(HaveRtldNext)
1263
1264     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1265     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1266     AC_EGREP_CPP(yes,
1267     [
1268      #include <dlfcn.h>
1269      #ifdef RTLD_LOCAL
1270             yes
1271      #endif
1272     ], [
1273       AC_MSG_RESULT(yes)
1274       AC_DEFINE(HAVE_RTLDLOCAL)
1275       HaveRtldLocal=YES
1276     ], [
1277       AC_MSG_RESULT(no)
1278       HaveRtldLocal=NO
1279       ])    
1280     AC_SUBST(HaveRtldLocal)
1281
1282     dnl ** RTLD_GLOBAL isn't available on openbsd
1283     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1284     AC_EGREP_CPP(yes,
1285     [
1286      #include <dlfcn.h>
1287      #ifdef RTLD_GLOBAL
1288             yes
1289      #endif
1290     ], [
1291       AC_MSG_RESULT(yes)
1292       AC_DEFINE(HAVE_RTLDGLOBAL)
1293       HaveRtldGlobal=YES
1294     ], [
1295       AC_MSG_RESULT(no)
1296       HaveRtldGlobal=NO
1297       ])    
1298     AC_SUBST(HaveRtldGlobal)
1299
1300     dnl ** RTLD_NOW isn't available on openbsd
1301     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1302     AC_EGREP_CPP(yes,
1303     [
1304      #include <dlfcn.h>
1305      #ifdef RTLD_NOW
1306             yes
1307      #endif
1308     ], [
1309       AC_MSG_RESULT(yes)
1310       AC_DEFINE(HAVE_RTLDNOW)
1311       HaveRtldNow=YES
1312     ], [
1313       AC_MSG_RESULT(no)
1314       HaveRtldNow=NO
1315       ])    
1316     AC_SUBST(HaveRtldNow)
1317 fi
1318
1319 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1320
1321 dnl ---------- usleep ----------
1322 dnl --- stolen from guile configure ---
1323 dnl --- FIXME: /usr/include/unistd.h can't be right?
1324
1325 ### On some systems usleep has no return value.  If it does have one,
1326 ### we'd like to return it; otherwise, we'll fake it.
1327 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1328   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1329                    /usr/include/unistd.h,
1330                    [cv_func_usleep_return_type=void],
1331                    [cv_func_usleep_return_type=int])])
1332 case "$cv_func_usleep_return_type" in
1333   "void" )
1334     AC_DEFINE([USLEEP_RETURNS_VOID], [1], [Define if the system headers declare usleep to return void.])
1335   ;;
1336 esac
1337
1338 dnl --------------------------------------------------
1339 dnl * test for in_addr_t
1340 dnl --------------------------------------------------
1341 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1342 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1343  [ AC_DEFINE([HAVE_IN_ADDR_T], [1], [Define to 1 if in_addr_t is available.]) AC_MSG_RESULT(yes) ],
1344  AC_MSG_RESULT(no))
1345
1346 dnl --------------------------------------------------
1347 dnl * test for Linux sendfile(2)
1348 dnl --------------------------------------------------
1349 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1350 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1351  [ AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have a Linux sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1352  AC_MSG_RESULT(no))
1353
1354 dnl --------------------------------------------------
1355 dnl * test for BSD sendfile(2)
1356 dnl --------------------------------------------------
1357 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1358 AC_EGREP_HEADER(sendfile, sys/socket.h,
1359  [ AC_DEFINE([HAVE_BSD_SENDFILE], [1], [Define to 1 if you have a BSDish sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1360  AC_MSG_RESULT(no))
1361
1362 dnl --------------------------------------------------
1363 dnl * test for GTK+
1364 dnl --------------------------------------------------
1365
1366 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1367 if test "$GTK_CONFIG" != ""; then
1368    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1369         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1370     ])
1371     GTK_VERSION=$fptools_cv_gtk_version
1372 else
1373     GTK_VERSION=
1374 fi
1375
1376 case $fptools_cv_gtk_version in
1377   1.[[23]].*) ;;
1378   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1379      GTK_CONFIG=
1380      ;;
1381 esac
1382
1383 AC_SUBST(GTK_CONFIG)
1384 AC_SUBST(GTK_VERSION)
1385
1386 dnl --------------------------------------------------
1387 dnl * Miscellaneous feature tests
1388 dnl --------------------------------------------------
1389
1390 dnl ** can we get alloca?
1391 AC_FUNC_ALLOCA
1392
1393 dnl ** Working vfork?
1394 AC_FUNC_VFORK
1395
1396 dnl ** determine whether or not const works
1397 AC_C_CONST
1398
1399 dnl ** are we big endian?
1400 AC_C_BIGENDIAN
1401
1402 dnl ** check for leading underscores in symbol names
1403 FPTOOLS_UNDERSCORE
1404
1405 dnl ** check for ld, and whether ld has -x option
1406 AC_PATH_PROG(LdCmdRaw, ld)
1407 case $HostOS_CPP in
1408  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1409            ;;
1410  *) LdCmd=${LdCmdRaw}
1411     ;;
1412 esac
1413 AC_SUBST(LdCmd)
1414 FPTOOLS_LD_X
1415
1416 FP_EMPTY_STRUCTS
1417
1418 AC_MSG_CHECKING([for SIGPOLL])
1419 AC_EGREP_CPP(we_have_sigpoll,
1420 [#include <signal.h>
1421 #ifdef SIGPOLL
1422 we_have_sigpoll
1423 #endif
1424 ], AC_DEFINE([HAVE_SIGPOLL], [1], [Define to 1 if you have the sigpoll() function.]) haveSIGPOLL=yes, haveSIGPOLL=no)
1425 AC_MSG_RESULT([$haveSIGPOLL])
1426
1427 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1428 AC_EGREP_CPP(we_have_that_sysconf_thing,
1429 [
1430 #include <unistd.h>
1431 #ifdef _SC_GETGR_R_SIZE_MAX
1432 we_have_that_sysconf_thing
1433 #endif
1434 ],
1435 [AC_MSG_RESULT([yes])
1436 AC_DEFINE([HAVE_SC_GETGR_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETGR_R_SIZE_MAX.])],
1437 [AC_MSG_RESULT([no])])
1438
1439 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1440 AC_EGREP_CPP(we_have_that_sysconf_thing,
1441 [
1442 #include <unistd.h>
1443 #ifdef _SC_GETPW_R_SIZE_MAX
1444 we_have_that_sysconf_thing
1445 #endif
1446 ],
1447 [AC_MSG_RESULT([yes])
1448 AC_DEFINE([HAVE_SC_GETPW_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETPW_R_SIZE_MAX.])],
1449 [AC_MSG_RESULT([no])])
1450
1451 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )