[project @ 2003-09-04 09:53:31 by simonmar]
[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 hppa1.1-hp-hpux*)
109         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
110         TargetPlatform=hppa1.1-hp-hpux
111         BuildPlatform=hppa1.1-hp-hpux
112         HostPlatform_CPP='hppa1_1_hp_hpux'
113         HostArch_CPP='hppa1_1'
114         HostVendor_CPP='hp'
115         HostOS_CPP='hpux'
116         ;;
117 i[[3456]]86-*-linuxaout*)
118         HostPlatform=i386-unknown-linuxaout   # hack again
119         TargetPlatform=i386-unknown-linuxaout
120         BuildPlatform=i386-unknown-linuxaout
121         HostPlatform_CPP='i386_unknown_linuxaout'
122         HostArch_CPP='i386'
123         HostVendor_CPP='unknown'
124         HostOS_CPP='linuxaout'
125         ;;
126 i[[3456]]86-*-linux*)
127         HostPlatform=i386-unknown-linux # hack again
128         TargetPlatform=i386-unknown-linux
129         BuildPlatform=i386-unknown-linux
130         HostPlatform_CPP='i386_unknown_linux'
131         HostArch_CPP='i386'
132         HostVendor_CPP='unknown'
133         HostOS_CPP='linux'
134         ;;
135 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
136         HostPlatform=i386-unknown-freebsd # hack again
137         TargetPlatform=i386-unknown-freebsd
138         BuildPlatform=i386-unknown-freebsd
139         HostPlatform_CPP='i386_unknown_freebsd'
140         HostArch_CPP='i386'
141         HostVendor_CPP='unknown'
142         HostOS_CPP='freebsd'
143         ;;
144 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
145         HostPlatform=i386-unknown-freebsd2 # hack again
146         TargetPlatform=i386-unknown-freebsd2
147         BuildPlatform=i386-unknown-freebsd2
148         HostPlatform_CPP='i386_unknown_freebsd2'
149         HostArch_CPP='i386'
150         HostVendor_CPP='unknown'
151         HostOS_CPP='freebsd2'
152         ;;
153 i[[3456]]86-*-netbsd*)
154         HostPlatform=i386-unknown-netbsd # hack again
155         TargetPlatform=i386-unknown-netbsd
156         BuildPlatform=i386-unknown-netbsd
157         HostPlatform_CPP='i386_unknown_netbsd'
158         HostArch_CPP='i386'
159         HostVendor_CPP='unknown'
160         HostOS_CPP='netbsd'
161         ;;
162 i[[3456]]86-*-openbsd*)
163         HostPlatform=i386-unknown-openbsd # hack again
164         TargetPlatform=i386-unknown-openbsd
165         BuildPlatform=i386-unknown-openbsd
166         HostPlatform_CPP='i386_unknown_openbsd'
167         HostArch_CPP='i386'
168         HostVendor_CPP='unknown'
169         HostOS_CPP='openbsd'
170         ;;
171 i[[3456]]86-*-solaris2*)
172         HostPlatform=i386-unknown-solaris2 # hack again
173         TargetPlatform=i386-unknown-solaris2
174         BuildPlatform=i386-unknown-solaris2
175         HostPlatform_CPP='i386_unknown_solaris2'
176         HostArch_CPP='i386'
177         HostVendor_CPP='unknown'
178         HostOS_CPP='solaris2'
179         ;;
180 i[[3456]]86-*-cygwin*)
181         HostPlatform=i386-unknown-cygwin32 # hack again
182         TargetPlatform=i386-unknown-cygwin32
183         BuildPlatform=i386-unknown-cygwin32
184         HostPlatform_CPP='i386_unknown_cygwin32'
185         HostArch_CPP='i386'
186         HostVendor_CPP='unknown'
187         HostOS_CPP='cygwin32'
188         exeext='.exe'
189         ;;
190 i[[3456]]86-*-mingw32*)
191         HostPlatform=i386-unknown-mingw32 # hack again
192         TargetPlatform=i386-unknown-mingw32
193         BuildPlatform=i386-unknown-mingw32
194         HostPlatform_CPP='i386_unknown_mingw32'
195         HostArch_CPP='i386'
196         HostVendor_CPP='unknown'
197         HostOS_CPP='mingw32'
198         exeext='.exe'
199         ;;
200 ia64-*-linux*)
201         HostPlatform=ia64-unknown-linux # hack again
202         TargetPlatform=ia64-unknown-linux
203         BuildPlatform=ia64-unknown-linux
204         HostPlatform_CPP='ia64_unknown_linux'
205         HostArch_CPP='ia64'
206         HostVendor_CPP='unknown'
207         HostOS_CPP='linux'
208         ;;
209 x86_64-*-linux*)
210         HostPlatform=x86_64-unknown-linux
211         TargetPlatform=x86_64-unknown-linux
212         BuildPlatform=x86_64-unknown-linux
213         HostPlatform_CPP='x86_64_unknown_linux'
214         HostArch_CPP='x86_64'
215         HostVendor_CPP='unknown'
216         HostOS_CPP='linux'
217         ;;
218 m68k-next-nextstep2)
219         HostPlatform_CPP='m68k_next_nextstep2'
220         HostArch_CPP='m68k'
221         HostVendor_CPP='next'
222         HostOS_CPP='nextstep2'
223         ;;
224 m68k-next-nextstep3)
225         HostPlatform_CPP='m68k_next_nextstep3'
226         HostArch_CPP='m68k'
227         HostVendor_CPP='next'
228         HostOS_CPP='nextstep3'
229         ;;
230 i[[3456]]86-next-nextstep3)
231         HostPlatform=i386-next-nextstep3 # hack again
232         TargetPlatform=i386-next-nextstep3
233         BuildPlatform=i386-next-nextstep3
234         HostPlatform_CPP='i386_next_nextstep3'
235         HostArch_CPP='i386'
236         HostVendor_CPP='next'
237         HostOS_CPP='nextstep3'
238         ;;
239 m68k-*-openbsd*)
240         HostPlatform=m68k-unknown-openbsd
241         TargetPlatform=m68k-unknown-openbsd
242         BuildPlatform=m68k-unknown-openbsd
243         HostPlatform_CPP='m68k_unknown_openbsd'
244         HostArch_CPP='m68k'
245         HostVendor_CPP='unknown'
246         HostOS_CPP='openbsd'
247         ;;
248 m68k-*-netbsd*)
249         HostPlatform=m68k-unknown-netbsd
250         TargetPlatform=m68k-unknown-netbsd
251         BuildPlatform=m68k-unknown-netbsd
252         HostPlatform_CPP='m68k_unknown_netbsd'
253         HostArch_CPP='m68k'
254         HostVendor_CPP='unknown'
255         HostOS_CPP='netbsd'
256         ;;
257 m68k-sun-sunos4*)
258         HostPlatform=m68k-sun-sunos4
259         TargetPlatform=m68k-sun-sunos4 #hack
260         BuildPlatform=m68k-sun-sunos4 #hack
261         HostPlatform_CPP='m68k_sun_sunos4'
262         HostArch_CPP='m68k'
263         HostVendor_CPP='sun'
264         HostOS_CPP='sunos4'
265         ;;
266 mips-dec-ultrix*)
267         HostPlatform_CPP='mips_dec_ultrix'
268         HostArch_CPP='mipsel'   # NB a little different
269         HostVendor_CPP='dec'
270         HostOS_CPP='ultrix'
271         ;;
272 mips-sgi-irix*)
273         HostPlatform=mips-sgi-irix
274         TargetPlatform=mips-sgi-irix #hack
275         BuildPlatform=mips-sgi-irix #hack
276         HostPlatform_CPP='mips_sgi_irix'
277         HostArch_CPP='mipseb'   # NB a little different
278         HostVendor_CPP='sgi'
279         HostOS_CPP='irix'
280         ;;
281 rs6000-ibm-aix*)
282         HostPlatform=rs6000-ibm-aix
283         TargetPlatform=rs6000-ibm-aix #hack
284         BuildPlatform=rs6000-ibm-aix #hack
285         HostPlatform_CPP='rs6000_ibm_aix'
286         HostArch_CPP='rs6000'
287         HostVendor_CPP='ibm'
288         HostOS_CPP='aix'
289         ;;
290 powerpc-ibm-aix*)
291         HostPlatform=powerpc-ibm-aix
292         TargetPlatform=powerpc-ibm-aix #hack
293         BuildPlatform=powerpc-ibm-aix #hack
294         HostPlatform_CPP='powerpc_ibm_aix'
295         HostArch_CPP='powerpc'
296         HostVendor_CPP='ibm'
297         HostOS_CPP='aix'
298         ;;
299 powerpc-apple-darwin*)
300         HostPlatform=powerpc-apple-darwin
301         TargetPlatform=powerpc-apple-darwin #hack
302         BuildPlatform=powerpc-apple-darwin #hack
303         HostPlatform_CPP='powerpc_apple_darwin'
304         HostArch_CPP='powerpc'
305         HostVendor_CPP='apple'
306         HostOS_CPP='darwin'
307         ;;
308 sparc-sun-sunos4*)
309         HostPlatform=sparc-sun-sunos4
310         TargetPlatform=sparc-sun-sunos4 #hack
311         BuildPlatform=sparc-sun-sunos4 #hack
312         HostPlatform_CPP='sparc_sun_sunos4'
313         HostArch_CPP='sparc'
314         HostVendor_CPP='sun'
315         HostOS_CPP='sunos4'
316         ;;
317 sparc-sun-solaris2*)
318         HostPlatform=sparc-sun-solaris2
319         TargetPlatform=sparc-sun-solaris2 #hack
320         BuildPlatform=sparc-sun-solaris2 #hack
321         HostPlatform_CPP='sparc_sun_solaris2'
322         HostArch_CPP='sparc'
323         HostVendor_CPP='sun'
324         HostOS_CPP='solaris2'
325         ;;
326 sparc*-linux*)
327         HostPlatform=sparc-unknown-linux
328         TargetPlatform=sparc-unknown-linux
329         BuildPlatform=sparc-unknown-linux
330         HostPlatform_CPP='sparc_unknown_linux'
331         HostArch_CPP='sparc'
332         HostVendor_CPP='unknown'
333         HostOS_CPP='linux'
334         ;;
335 sparc-*-openbsd*)
336         HostPlatform=sparc-unknown-openbsd
337         TargetPlatform=sparc-unknown-openbsd
338         BuildPlatform=sparc-unknown-openbsd
339         HostPlatform_CPP='sparc_unknown_openbsd'
340         HostArch_CPP='sparc'
341         HostVendor_CPP='unknown'
342         HostOS_CPP='openbsd'
343         ;;
344 *)
345         echo "Unrecognised platform: $HostPlatform"
346         exit 1
347         ;;
348 esac
349 echo "Canonicalised to: $HostPlatform"
350 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
351 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
352
353 BuildPlatform_CPP=$HostPlatform_CPP
354 TargetPlatform_CPP=$HostPlatform_CPP
355 BuildArch_CPP=$HostArch_CPP
356 TargetArch_CPP=$HostArch_CPP
357 BuildOS_CPP=$HostOS_CPP
358 HostOS_Full=$host_os
359 TargetOS_CPP=$HostOS_CPP
360 BuildVendor_CPP=$HostVendor_CPP
361 TargetVendor_CPP=$HostVendor_CPP
362
363 AC_SUBST(BuildPlatform)
364 AC_SUBST(HostPlatform)
365 AC_SUBST(TargetPlatform)
366 AC_SUBST(HostPlatform_CPP)
367 AC_SUBST(BuildPlatform_CPP)
368 AC_SUBST(TargetPlatform_CPP)
369
370 AC_SUBST(HostArch_CPP)
371 AC_SUBST(BuildArch_CPP)
372 AC_SUBST(TargetArch_CPP)
373
374 AC_SUBST(HostOS_CPP)
375 AC_SUBST(HostOS_Full)
376 AC_SUBST(BuildOS_CPP)
377 AC_SUBST(TargetOS_CPP)
378
379 AC_SUBST(HostVendor_CPP)
380 AC_SUBST(BuildVendor_CPP)
381 AC_SUBST(TargetVendor_CPP)
382
383 AC_SUBST(exeext)
384
385 dnl --------------------------------------------------------------
386 dnl * Calculate absolute path to build tree
387 dnl --------------------------------------------------------------
388
389 AC_MSG_CHECKING(for path to top of build tree)
390
391 hardtop=`pwd`
392
393 dnl Remove common automounter nonsense
394 dnl
395 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
396
397 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).
398 dnl
399 case $HostPlatform in
400   i386-unknown-mingw32 | i386-unknown-cygwin32)
401         # convert $hardtop to a path that mingw will understand too
402         cyghardtop=${hardtop}
403         hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
404         hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
405         ;;
406   *)
407         hardtop_plat=${hardtop}
408         ;;
409 esac
410 AC_SUBST(hardtop)
411 AC_SUBST(hardtop_plat)
412
413 AC_MSG_RESULT(${hardtop})
414
415 dnl --------------------------------------------------------------
416 dnl * Project specific configuration options
417 dnl --------------------------------------------------------------
418 dnl What follows is a bunch of options that can either be configured
419 dnl through command line options to the configure script or by
420 dnl supplying defns in the build tree's mk/build.mk. Having the option to
421 dnl use either is considered a Feature.
422
423 dnl ** What command to use to compile compiler sources ?
424 dnl --------------------------------------------------------------
425
426 AC_ARG_WITH(ghc,
427 [  --with-ghc=<haskell compiler>
428         Use a command different from 'ghc' to compile GHC-specific Haskell code
429             (including GHC itself).
430 ],
431 [ WithGhc="$withval" ],
432
433   if test "$GHC" = ""; then
434     AC_PATH_PROG(GHC,ghc)
435   fi
436   WithGhc=$GHC
437 ]
438 )
439 AC_SUBST(WithGhc)
440
441 AC_ARG_WITH(hc,
442 [  --with-hc=<haskell compiler>
443         Use a command different from 'ghc' to compile generic Haskell code.
444 ],
445 [WithHc="$withval"],
446 [WithHc=$WithGhc]
447 )
448 AC_SUBST(WithHc)
449
450 if test "$WithGhc" != ""; then
451   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
452   AC_SUBST(GhcVersion)dnl
453   AC_SUBST(GhcMajVersion)dnl
454   AC_SUBST(GhcMinVersion)dnl
455   AC_SUBST(GhcPatchLevel)dnl
456 fi
457
458 AC_PATH_PROGS(NHC,nhc nhc98)
459 AC_PATH_PROG(HBC,hbc)
460
461 dnl ** Which gcc to use?
462 dnl --------------------------------------------------------------
463 AC_ARG_WITH(gcc,
464 [  --with-gcc=<gcc command>
465         Use a different command instead of 'gcc' for the GNU C compiler.
466 ],
467 [WhatGccIsCalled="$withval"
468  if test "x$HostPlatform" = "xi386-unknown-mingw32"; then
469     # Canonicalise to <drive>:/path/to/gcc
470     withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
471  fi;
472  CC="$withval"],
473 [WhatGccIsCalled="gcc"]
474 )
475 AC_SUBST(WhatGccIsCalled)
476
477 dnl ** Booting from .hc files?
478 dnl --------------------------------------------------------------
479 AC_ARG_ENABLE(hc-boot,
480 [  --enable-hc-boot
481         Boot the Glasgow Haskell Compiler from intermediate .hc files.
482         (This option is mostly of interest to porters.)
483 ],
484 [BootingFromHc=YES],
485 [BootingFromHc=NO]
486 )
487 AC_SUBST(BootingFromHc)
488
489 dnl ** Booting from unregisterised .hc files?
490 dnl --------------------------------------------------------------
491 AC_ARG_ENABLE(hc-boot-unregisterised,
492 [  --enable-hc-boot-unregisterised
493         With --enable-hc-boot, treat the intermediate .hc files as
494         unregisterised rather than registerised code.
495         (This option is mostly of interest to porters.)
496 ],
497 [BootingFromUnregisterisedHc=YES],
498 [BootingFromUnregisterisedHc=NO]
499 )
500 AC_SUBST(BootingFromUnregisterisedHc)
501
502 if test "$BootingFromHc" = "NO"; then
503 if test "$BootingFromUnregisterisedHc" = "YES"; then
504 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
505 fi;
506 fi;
507
508 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
509 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
510 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
511 fi;
512
513 dnl ** Enable multi-thread friendly RTS?
514 dnl --------------------------------------------------------------
515 AC_ARG_ENABLE(threaded-rts,
516 [  --enable-threaded-rts
517         Support better interop with OS threads.
518 ],
519 [ThreadedRts=YES],
520 [ThreadedRts=NO]
521 )
522 AC_SUBST(ThreadedRts)
523
524 dnl ** Enable the construction of Win32 DLLs?
525 dnl --------------------------------------------------------------
526 dnl
527 dnl [ The ability to build the RTS and libraries as separate DLLs used
528 dnl   to be supported, but isn't currently (updates to the RTS, compiler 
529 dnl   and build system would be required to bring it back again.)
530 dnl   Hence, exposing it as an option is false advertisement, so better
531 dnl   disable it to avoid confusion (but leave it commented-out rather
532 dnl   than removed in order to remind ourselves to bring back the 
533 dnl   feature at some stage.) ]
534 dnl
535 dnl AC_ARG_ENABLE(win32-dlls,
536 dnl [  --enable-win32-dlls
537 dnl         If on a Win32 platform running mingw32/cygwin, enable the
538 dnl     construction of DLLs containing ghc-compiled code.
539 dnl ],
540 dnl [
541 dnl case $HostOS_CPP in
542 dnl cygwin32) ;;
543 dnl mingw32)  ;;
544 dnl *)    echo "Unrecognised win32 platform: $HostPlatform"
545 dnl       exit 1
546 dnl       ;;
547 dnl esac
548 dnl EnableWin32DLLs=YES
549 dnl ],
550 dnl [EnableWin32DLLs=NO]
551 dnl )
552 dnl AC_SUBST(EnableWin32DLLs)
553 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
554 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
555 dnl fi
556
557 dnl ** Enable the building of the ObjectIO?
558 dnl --------------------------------------------------------------
559 AC_ARG_ENABLE(objectio,
560 [  --enable-objectio
561         Build ObjectIO, a portable GUI library for Haskell.
562 ],
563 [GhcLibsWithObjectIO=YES],
564 [GhcLibsWithObjectIO=NO]
565 )
566 AC_SUBST(GhcLibsWithObjectIO)
567
568 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
569 dnl --------------------------------------------------------------
570 AC_ARG_ENABLE(hopengl,
571 [  --enable-hopengl
572         Build HOpenGL, a Haskell binding for OpenGL/GLUT.
573         On Mac OS X, use --enable-hopengl=x11 to use X11 instead
574         of the "native" libraries.
575 ],
576 [GhcLibsWithHOpenGL=YES],
577 [GhcLibsWithHOpenGL=NO]
578 )
579 UseQuartzOpenGL=NO
580 if test x"$TargetOS_CPP" = x"darwin"; then
581   if test x"$enable_hopengl" != x"x11"; then
582     AC_DEFINE([USE_QUARTZ_OPENGL], [1],
583               [Define to 1 if native OpenGL should be used on Mac OS X])
584     UseQuartzOpenGL=YES
585   fi
586 fi
587
588 AC_SUBST(GhcLibsWithHOpenGL)
589
590 dnl ** .NET interop support?
591 dnl --------------------------------------------------------------
592 AC_ARG_ENABLE(dotnet,
593 [  --enable-dotnet
594         Build .NET interop layer.
595 ],
596 [DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])],
597 [DotnetSupport=NO]
598 )
599 AC_SUBST(DotnetSupport)
600
601 dnl --------------------------------------------------------------
602 dnl End of configure script option section
603 dnl --------------------------------------------------------------
604
605
606 dnl --------------------------------------------------------------
607 dnl * General configuration checks
608 dnl --------------------------------------------------------------
609
610 dnl ** does #! work?
611 AC_SYS_INTERPRETER()
612
613 dnl ** look for `perl', but only in /bin on Windows
614 case $HostOS_CPP in
615 cygwin32|mingw32)
616       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
617       if test -z "$PerlCmd"; then
618          echo "You must install the version of Perl shipped with GHC"
619          echo "(or a compatible one) in /bin."
620          exit 1
621       fi
622    ;;
623 *)
624    AC_PATH_PROG(PerlCmd,perl)
625    if test -z "$PerlCmd"; then
626       echo "You must install perl before you can continue"
627       echo "Perhaps it is already installed, but not in your PATH?"
628       exit 1
629    else
630    FPTOOLS_CHECK_PERL_VERSION
631    fi
632    ;;
633 esac
634
635 dnl ** does #! path/to/perl work? (sometimes it's too long...)
636 FPTOOLS_SHEBANG_PERL
637
638 dnl ** check for Python
639 AC_PATH_PROG(PythonCmd,python)
640
641 dnl ** look for GCC and find out which version
642 dnl     Figure out which C compiler to use.  Gcc is preferred.
643 dnl     If gcc, make sure it's at least 2.1
644 dnl
645 AC_PROG_CC
646 FPTOOLS_HAVE_GCC
647 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
648
649 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
650 AC_PROG_CPP
651
652 dnl ** Without optimization some INLINE trickery fails for GHCi
653 SRC_CC_OPTS="-O"
654
655 dnl ** Try to add -mno-cygwin to the C compiler options
656 FP_CHECK_FLAG([-mno-cygwin], [
657 SRC_CC_OPTS="-mno-cygwin $SRC_CC_OPTS"
658 CPPFLAGS="-mno-cygwin $CPPFLAGS"])
659 AC_SUBST(SRC_CC_OPTS)
660
661 dnl ** figure out how to do context diffs
662 FP_PROG_CONTEXT_DIFF
663
664 dnl ** Find find command (for Win32's benefit)
665 FPTOOLS_FIND_FIND
666
667 dnl ** figure out how to do a BSD-ish install
668 AC_PROG_INSTALL
669
670 dnl If you can run configure, you certainly have /bin/sh
671 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
672
673 dnl ** how to invoke `ar' and `ranlib'
674 FPTOOLS_PROG_AR_AND_RANLIB
675
676 dnl ** Check to see whether ln -s works
677 AC_PROG_LN_S
678
679
680 dnl ** Find the path to sed
681 AC_PATH_PROG(SedCmd,sed)
682
683
684 dnl ** check for time command
685 AC_PATH_PROG(TimeCmd,time)
686
687 dnl ** check for tar
688 dnl   if GNU tar is named gtar, look for it first.
689 AC_PATH_PROGS(TarCmd,gtar tar,tar)
690
691 dnl ** check for jade/openjade & determine a working catalog
692 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
693 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl, 
694                         /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
695 if test -z "$Catalog"; then
696   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
697 fi
698 case $Catalog in
699    yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
700         Catalog=
701         ;;
702    glafp*) 
703         case $HostOS_CPP in
704            mingw32)
705               Catalog=`cygpath -w $hardtop/$Catalog`
706               ;;
707            *) Catalog=$hardtop/$Catalog
708               ;;
709         esac
710    ;;
711 esac   
712 AC_SUBST(Catalog)
713
714
715 dnl ** check for ghc-pkg command
716 changequote(, )dnl
717 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
718 changequote([, ])dnl
719 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
720    GhcPkgCmd=$ghc_pkg_guess
721    AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
722 else
723    AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
724 fi
725
726 AC_ARG_WITH(greencard,
727 [  --with-greencard=<greencard compiler>
728         Use a command different from 'greencard' to compile GreenCard files
729 ],
730 [
731 GreenCardCmd=$withval;
732 FPTOOLS_GREENCARD(3.00)
733 ]
734 )
735
736 AC_ARG_ENABLE(src-tree-happy,
737 [  --enable-src-tree-happy
738         Build and use source tree (fptools/happy) version of Happy.
739 ],
740 [UseSrcTreeHappy=YES],
741 [UseSrcTreeHappy=NO]
742 )
743 dnl ** check for installed happy binary + version
744 dnl    (don't do it if we're booting from .hc files though.)
745 if test "$BootingFromHc" = "NO"; then
746 FPTOOLS_HAPPY
747 fi;
748
749 AC_ARG_ENABLE(src-tree-haddock,
750 [  --enable-src-tree-haddock
751         Build and use source tree (fptools/haddock) version of Haddock.
752 ],
753 [UseSrcTreeHaddock=YES],
754 [UseSrcTreeHaddock=NO]
755 )
756 dnl ** check for installed haddock
757 FPTOOLS_HADDOCK
758
759 AC_ARG_ENABLE(src-tree-alex,
760 [  --enable-src-tree-alex
761         Build and use source tree (fptools/alex) version of Alex.
762 ],
763 [UseSrcTreeAlex=YES],
764 [UseSrcTreeAlex=NO]
765 )
766 dnl ** check for installed alex binary + version
767 dnl    (don't do it if we're booting from .hc files though.)
768 if test "$BootingFromHc" = "NO"; then
769 FPTOOLS_ALEX
770 fi;
771
772 dnl --------------------------------------------------
773 dnl ### program checking section ends here ###
774 dnl --------------------------------------------------
775
776 dnl --------------------------------------------------
777 dnl * Platform header file and syscall feature tests
778 dnl ### checking the state of the local header files and syscalls ###
779
780 dnl ** check for full ANSI header (.h) files
781 AC_HEADER_STDC
782
783 dnl ** Enable large file support.  NB. do this before testing the type of
784 dnl    off_t, because it will affect the result of that test.
785 AC_SYS_LARGEFILE
786
787 dnl ** check for specific header (.h) files that we are interested in
788 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)
789 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
790
791 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
792 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
793
794 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
795   HaveReadlineHeaders=YES
796   AC_DEFINE([HAVE_READLINE_HEADERS], [1], [Define to 1 if readline/readline.h and readline/history.h exist.])
797 else
798   HaveReadlineHeaders=NO
799   AC_DEFINE([HAVE_READLINE_HEADERS], [0], [Define to 1 if readline/readline.h and readline/history.h exist.])
800 fi
801 AC_SUBST(HaveReadlineHeaders)
802
803 dnl ** check for DOS include files
804 AC_CHECK_HEADERS(dos.h conio.h io.h std.h) 
805
806 dnl ** check for Windows include files
807 AC_CHECK_HEADERS(windows.h)
808
809 dnl ** check for OpenGL include files
810 if test $UseQuartzOpenGL = YES ; then
811   AC_CHECK_HEADERS(OpenGL/gl.h)
812 else
813   AC_CHECK_HEADERS(GL/gl.h)
814 fi
815
816 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
817 AC_HEADER_TIME
818
819 dnl dynamic loading include files
820 AC_CHECK_HEADERS(dlfcn.h dl.h) 
821
822 dnl ** check for farcalloc (in bcc)
823 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
824
825 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
826 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
827
828 dnl ** check for POSIX regex
829 HavePosixRegex=NO
830 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
831 AC_SUBST(HavePosixRegex)
832
833 dnl ** how do we get a timezone name, and UTC offset ?
834 AC_STRUCT_TIMEZONE
835
836 dnl ** do we have altzone?
837 FP_DECL_ALTZONE
838
839 dnl ** does struct stat contain st_blksize?
840 AC_STRUCT_ST_BLKSIZE
841
842 dnl ** do we have long longs?
843 AC_CHECK_TYPES([long long])
844
845 dnl ** check what fields struct msghdr contains
846 AC_CHECK_HEADERS([sys/types.h sys/socket.h sys/uio.h])
847 AC_CHECK_MEMBERS([struct msghdr.msg_control, struct msghdr.msg_accrights], [], [], [#if HAVE_SYS_TYPES_H
848 # include <sys/types.h>
849 #endif
850 #if HAVE_SYS_SOCKET_H
851 # include <sys/socket.h>
852 #endif
853 #if HAVE_SYS_UIO_H
854 # include <sys/uio.h>
855 #endif])
856
857 dnl ** what are the sizes of various types
858 AC_CHECK_SIZEOF(char,               1)
859 AC_CHECK_SIZEOF(double,             8)
860 AC_CHECK_SIZEOF(float,              4)
861 AC_CHECK_SIZEOF(int,                4)
862 AC_CHECK_SIZEOF(long,               4)
863 if test "$ac_cv_type_long_long" = yes; then
864 AC_CHECK_SIZEOF(long long,          8)
865 fi
866 AC_CHECK_SIZEOF(short,              2)
867 AC_CHECK_SIZEOF(unsigned char,      1)
868 AC_CHECK_SIZEOF(unsigned int,       4)
869 AC_CHECK_SIZEOF(unsigned long,      4)
870 if test "$ac_cv_type_long_long" = yes; then
871 AC_CHECK_SIZEOF(unsigned long long, 8)
872 fi
873 AC_CHECK_SIZEOF(unsigned short,     2)
874 AC_CHECK_SIZEOF(void *,             4)
875
876 dnl ** what are alignment constraints on various types
877 FP_CHECK_ALIGNMENT(char)
878 FP_CHECK_ALIGNMENT(double)
879 FP_CHECK_ALIGNMENT(float)
880 FP_CHECK_ALIGNMENT(int)
881 FP_CHECK_ALIGNMENT(long)
882 if test "$ac_cv_type_long_long" = yes; then
883 FP_CHECK_ALIGNMENT(long long)
884 fi
885 FP_CHECK_ALIGNMENT(short)
886 FP_CHECK_ALIGNMENT(unsigned char)
887 FP_CHECK_ALIGNMENT(unsigned int)
888 FP_CHECK_ALIGNMENT(unsigned long)
889 if test "$ac_cv_type_long_long" = yes; then
890 FP_CHECK_ALIGNMENT(unsigned long long)
891 fi
892 FP_CHECK_ALIGNMENT(unsigned short)
893 FP_CHECK_ALIGNMENT(void *)
894
895 dnl ** map standard C types and ISO types to Haskell types
896 FPTOOLS_CHECK_HTYPE(char)
897 FPTOOLS_CHECK_HTYPE(signed char)
898 FPTOOLS_CHECK_HTYPE(unsigned char)
899 FPTOOLS_CHECK_HTYPE(short)
900 FPTOOLS_CHECK_HTYPE(unsigned short)
901 FPTOOLS_CHECK_HTYPE(int)
902 FPTOOLS_CHECK_HTYPE(unsigned int)
903 FPTOOLS_CHECK_HTYPE(long)
904 FPTOOLS_CHECK_HTYPE(unsigned long)
905 if test "$ac_cv_type_long_long" = yes; then
906 FPTOOLS_CHECK_HTYPE(long long)
907 FPTOOLS_CHECK_HTYPE(unsigned long long)
908 fi
909 FPTOOLS_CHECK_HTYPE(float)
910 FPTOOLS_CHECK_HTYPE(double)
911 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
912 FPTOOLS_CHECK_HTYPE(size_t)
913 FPTOOLS_CHECK_HTYPE(wchar_t)
914 dnl Int32 is a HACK for non-ISO C compilers
915 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
916 FPTOOLS_CHECK_HTYPE(clock_t)
917 FPTOOLS_CHECK_HTYPE(time_t)
918 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
919 FPTOOLS_CHECK_HTYPE(ino_t)
920 FPTOOLS_CHECK_HTYPE(mode_t)
921 FPTOOLS_CHECK_HTYPE(off_t)
922 FPTOOLS_CHECK_HTYPE(pid_t)
923 FPTOOLS_CHECK_HTYPE(gid_t)
924 FPTOOLS_CHECK_HTYPE(uid_t)
925 FPTOOLS_CHECK_HTYPE(cc_t)
926 FPTOOLS_CHECK_HTYPE(speed_t)
927 FPTOOLS_CHECK_HTYPE(tcflag_t)
928 FPTOOLS_CHECK_HTYPE(blkcnt_t)
929 FPTOOLS_CHECK_HTYPE(nlink_t)
930 FPTOOLS_CHECK_HTYPE(ssize_t)
931 FPTOOLS_CHECK_HTYPE(rlim_t)
932
933 dnl ** Map OpenGL data types to Haskell types
934 if test $GhcLibsWithHOpenGL = YES ; then
935 FPTOOLS_CHECK_HTYPE(GLboolean)
936 FPTOOLS_CHECK_HTYPE(GLbyte)
937 FPTOOLS_CHECK_HTYPE(GLubyte)
938 FPTOOLS_CHECK_HTYPE(GLshort)
939 FPTOOLS_CHECK_HTYPE(GLushort)
940 FPTOOLS_CHECK_HTYPE(GLint)
941 FPTOOLS_CHECK_HTYPE(GLuint)
942 FPTOOLS_CHECK_HTYPE(GLsizei)
943 FPTOOLS_CHECK_HTYPE(GLenum)
944 FPTOOLS_CHECK_HTYPE(GLbitfield)
945 FPTOOLS_CHECK_HTYPE(GLfloat)
946 FPTOOLS_CHECK_HTYPE(GLclampf)
947 FPTOOLS_CHECK_HTYPE(GLdouble)
948 FPTOOLS_CHECK_HTYPE(GLclampd)
949 fi
950
951 FP_CHECK_CONSTS([E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV], [#include <errno.h>])
952
953 dnl ** can we open files in binary mode?
954 FP_CHECK_CONST([O_BINARY], [#include <fcntl.h>], [0])
955
956 dnl ** check for GetModuleFileName and WinExec (windows only)
957 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
958 dnl Doesn't work because the linker can't see the functions if
959 dnl you omit the #include <windows.h>.  (I've no idea why not...)
960
961 FPTOOLS_TRY_LINK_NOWARN(,[
962 #if HAVE_WINDOWS_H
963 #include <windows.h>
964 #endif
965 main() { 
966   WinExec("",0);
967   exit(0);
968 }
969 ],
970 [have_winexec=1],
971 [have_winexec=0])
972 if test "$have_winexec" = "1"; then
973   AC_DEFINE([HAVE_WINEXEC], [1], [Define to 1 if you have the WinExec function.])
974 fi
975
976 FPTOOLS_TRY_LINK_NOWARN(,[
977 #if HAVE_WINDOWS_H
978 #include <windows.h>
979 #endif
980 main() { 
981   char* dir;
982   GetModuleFileName((HMODULE)0,dir,0);
983   exit(0);
984 }
985 ],
986 [have_getmodulefilename=1],
987 [have_getmodulefilename=0])
988 if test "$have_getmodulefilename" = "1"; then
989 AC_DEFINE([HAVE_GETMODULEFILENAME], [1], [Define to 1 if you have the GetModuleFileName function.])
990 fi
991
992 dnl ** check return type of signal handlers
993 dnl Foo: assumes we can use prototypes.
994 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
995 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
996 dnl [AC_TRY_COMPILE([#include <sys/types.h>
997 dnl #include <signal.h>
998 dnl #ifdef signal
999 dnl #undef signal
1000 dnl #endif
1001 dnl void (*signal (int, void (*)(int)))(int);
1002 dnl ],
1003 dnl [int i;], 
1004 dnl ac_cv_type_signal_handler=void_int,
1005 dnl ac_cv_type_signal_handler=int_void)])
1006 dnl if test "$ac_cv_type_signal_handler" = void_int; then
1007 dnl AC_DEFINE(VOID_INT_SIGNALS)
1008 dnl fi
1009
1010 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
1011 AC_TYPE_SIGNAL
1012 if test "$ac_cv_type_signal" = void; then
1013   AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
1014 fi
1015
1016 dnl ** check for more functions
1017 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
1018 AC_CHECK_FUNCS(strcmp)
1019 AC_CHECK_FUNCS(realpath _fullpath)  
1020 AC_CHECK_FUNCS(PBHSetVolSync macsystem)  
1021 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
1022 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
1023 AC_CHECK_FUNCS(snprintf  _snprintf )  
1024 AC_CHECK_FUNCS(popen     _popen )  
1025 AC_CHECK_FUNCS(pclose    _pclose )  
1026 AC_CHECK_FUNCS(setenv unsetenv)
1027
1028
1029 dnl ** check for specific library functions that we are interested in
1030 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
1031
1032 dnl ** Solaris2 needs additionl flag for getpw*_r()
1033 case "$TargetPlatform" in
1034   *-solaris2*)
1035     unix_SRC_HSC2HS_OPTS="-D_POSIX_PTHREAD_SEMANTICS"
1036     AC_SUBST(unix_SRC_HSC2HS_OPTS)
1037   ;;
1038 esac
1039
1040 dnl ** check whether this machine has gmp3 installed
1041 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1042   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
1043     HaveLibGmp=NO; LibGmp=not-installed))
1044 AC_SUBST(HaveLibGmp)
1045 AC_SUBST(LibGmp)
1046
1047 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1048 HaveFrameworkHaskellSupport=NO
1049 if test $HostPlatform = "powerpc-apple-darwin"; then
1050  AC_MSG_CHECKING([for HaskellSupport.framework])
1051  save_libs="$LIBS"
1052  LIBS="-framework HaskellSupport"
1053  AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1054  if test $HaveFrameworkHaskellSupport = YES; then
1055   AC_DEFINE([HAVE_FRAMEWORK_HASKELLSUPPORT], [1], [Define to 1 if the HaskellSupport.framework is installed (Mac OS X only).])
1056  fi;
1057  LIBS="$save_libs"
1058  AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1059 fi;
1060 AC_SUBST(HaveFrameworkHaskellSupport)
1061
1062 dnl ** check for mingwex library
1063 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1064 AC_SUBST(HaveLibMingwEx)
1065
1066 if test $HaveLibMingwEx = YES ; then
1067   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
1068 fi
1069
1070 if test "$HaveLibGmp" = "NO"; then
1071 if test "$HostArch_CPP" = "ia64"; then
1072 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
1073 fi;
1074 fi;
1075
1076 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1077 dnl    the order of these tests matters: bfd needs liberty
1078 AC_CHECK_LIB(iberty, xmalloc)
1079 AC_CHECK_LIB(bfd,    bfd_init)
1080
1081 dnl ** check for wide-char classifications
1082 AC_CHECK_HEADERS(wctype.h)
1083
1084 dnl ** check for readline, for Hugs and hslibs' Readline
1085 dnl ncurses supersedes termcap and curses, but for compatibility,
1086 dnl we have to check for all...
1087 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1088   AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1089     AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1090       HaveLibTermcap=NO; LibTermcap=not-installed)))
1091
1092 if test $HaveLibTermcap = YES ; then
1093   LIBS="-l$LibTermcap $LIBS"
1094   AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1095 fi
1096
1097 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1098   AC_DEFINE([HAVE_READLINE_LIBS], [1], [Define to 1 if readline plus any additional libs needed for it exist.])
1099   LibsReadline="readline $LibTermcap"
1100 else
1101   AC_DEFINE([HAVE_READLINE_LIBS], [0], [Define to 1 if readline plus any additional libs needed for it exist.])
1102   LibsReadline=
1103 fi
1104 AC_SUBST(LibsReadline)
1105
1106 if test "$HaveLibReadline"; then
1107   AC_CHECK_LIB(readline, rl_erase_empty_line,
1108     [AC_DEFINE([HAVE_READLINE_4], [1], [Define to 1 if readline has version >= 4.0.])],
1109     [AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])])
1110   AC_CHECK_LIB(readline, rl_free_undo_list,
1111     [AC_DEFINE([HAVE_READLINE_4_2], [1], [Define to 1 if readline has version >= 4.2.])],
1112     [AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])])
1113 else
1114   AC_DEFINE([HAVE_READLINE_4], [0], [Define to 1 if readline has version >= 4.0.])
1115   AC_DEFINE([HAVE_READLINE_4_2], [0], [Define to 1 if readline has version >= 4.2.])
1116 fi
1117
1118 dnl ** check for math library
1119 FPTOOLS_CHECK_LIBM()
1120 AC_SUBST(LIBM)
1121
1122 dnl ** check for X Window System
1123 AC_PATH_XTRA()
1124
1125 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1126 if test $GhcLibsWithHOpenGL = YES ; then
1127   if test $UseQuartzOpenGL = YES ; then
1128     dnl Take a shortcut for Mac OS X native OpenGL:
1129     dnl It's in a non-standard location, but it's always there
1130     GL_CFLAGS=
1131         GL_LIBS=
1132         GLUT_LIBS=
1133         AC_SUBST(GL_CFLAGS)
1134         AC_SUBST(GL_LIBS)
1135         AC_SUBST(GLUT_LIBS)
1136   else
1137     FPTOOLS_HAVE_OPENGL
1138   fi
1139 fi
1140
1141 dnl ################################################################
1142 dnl Check for libraries
1143 dnl ################################################################
1144
1145 dnl ** check for libdl & RTLD_NEXT
1146
1147 dnl (Mac OS X only) ... but don't check if we already have the
1148 dnl HaskellSupport.framework
1149
1150 if test $HaveFrameworkHaskellSupport = YES; then
1151     HaveLibDL=NO
1152     HaveRtldNext=NO
1153     HaveRtldLocal=YES
1154     AC_DEFINE([HAVE_RTLDLOCAL], [1], [Define to 1 if RTLD_LOCAL is available.])
1155     HaveRtldGlobal=YES
1156     AC_DEFINE([HAVE_RTLDGLOBAL], [1], [Define to 1 if RTLD_GLOBAL is available.])
1157     HaveRtldNow=YES
1158     AC_DEFINE([HAVE_RTLDNOW], [1], [Define to 1 if we can see RTLD_NOW in dlfcn.h.])
1159     AC_SUBST(HaveLibDL)
1160     AC_SUBST(HaveRtldNext)
1161     AC_SUBST(HaveRtldLocal)
1162     AC_SUBST(HaveRtldGlobal)
1163     AC_SUBST(HaveRtldNow)
1164 else
1165     AC_CHECK_LIB(dl, dlopen, 
1166         [HaveLibDL=YES
1167          AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
1168          LIBS="$LIBS -ldl"], 
1169         [HaveLibDL=NO])
1170     AC_CHECK_FUNCS(dlopen)
1171     AC_SUBST(HaveLibDL)
1172
1173     dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1174     AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1175     AC_EGREP_CPP(yes,
1176     [
1177      #include <dlfcn.h>
1178      #ifdef RTLD_NEXT
1179             yes
1180      #endif
1181     ], [
1182       AC_MSG_RESULT(yes)
1183       AC_DEFINE([HAVE_RTLDNEXT], [1], [Define to 1 if we can see RTLD_NEXT in dlfcn.h.])
1184       HaveRtldNext=YES
1185     ], [
1186       AC_MSG_RESULT(no)
1187       HaveRtldNext=NO
1188       ])    
1189     AC_SUBST(HaveRtldNext)
1190
1191     dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1192     AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1193     AC_EGREP_CPP(yes,
1194     [
1195      #include <dlfcn.h>
1196      #ifdef RTLD_LOCAL
1197             yes
1198      #endif
1199     ], [
1200       AC_MSG_RESULT(yes)
1201       AC_DEFINE(HAVE_RTLDLOCAL)
1202       HaveRtldLocal=YES
1203     ], [
1204       AC_MSG_RESULT(no)
1205       HaveRtldLocal=NO
1206       ])    
1207     AC_SUBST(HaveRtldLocal)
1208
1209     dnl ** RTLD_GLOBAL isn't available on openbsd
1210     AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1211     AC_EGREP_CPP(yes,
1212     [
1213      #include <dlfcn.h>
1214      #ifdef RTLD_GLOBAL
1215             yes
1216      #endif
1217     ], [
1218       AC_MSG_RESULT(yes)
1219       AC_DEFINE(HAVE_RTLDGLOBAL)
1220       HaveRtldGlobal=YES
1221     ], [
1222       AC_MSG_RESULT(no)
1223       HaveRtldGlobal=NO
1224       ])    
1225     AC_SUBST(HaveRtldGlobal)
1226
1227     dnl ** RTLD_NOW isn't available on openbsd
1228     AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1229     AC_EGREP_CPP(yes,
1230     [
1231      #include <dlfcn.h>
1232      #ifdef RTLD_NOW
1233             yes
1234      #endif
1235     ], [
1236       AC_MSG_RESULT(yes)
1237       AC_DEFINE(HAVE_RTLDNOW)
1238       HaveRtldNow=YES
1239     ], [
1240       AC_MSG_RESULT(no)
1241       HaveRtldNow=NO
1242       ])    
1243     AC_SUBST(HaveRtldNow)
1244 fi
1245
1246 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1247
1248 dnl ---------- usleep ----------
1249 dnl --- stolen from guile configure ---
1250 dnl --- FIXME: /usr/include/unistd.h can't be right?
1251
1252 ### On some systems usleep has no return value.  If it does have one,
1253 ### we'd like to return it; otherwise, we'll fake it.
1254 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1255   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
1256                    /usr/include/unistd.h,
1257                    [cv_func_usleep_return_type=void],
1258                    [cv_func_usleep_return_type=int])])
1259 case "$cv_func_usleep_return_type" in
1260   "void" )
1261     AC_DEFINE([USLEEP_RETURNS_VOID], [1], [Define if the system headers declare usleep to return void.])
1262   ;;
1263 esac
1264
1265 dnl --------------------------------------------------
1266 dnl * test for in_addr_t
1267 dnl --------------------------------------------------
1268 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1269 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1270  [ AC_DEFINE([HAVE_IN_ADDR_T], [1], [Define to 1 if in_addr_t is available.]) AC_MSG_RESULT(yes) ],
1271  AC_MSG_RESULT(no))
1272
1273 dnl --------------------------------------------------
1274 dnl * test for Linux sendfile(2)
1275 dnl --------------------------------------------------
1276 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1277 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1278  [ AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have a Linux sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1279  AC_MSG_RESULT(no))
1280
1281 dnl --------------------------------------------------
1282 dnl * test for BSD sendfile(2)
1283 dnl --------------------------------------------------
1284 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1285 AC_EGREP_HEADER(sendfile, sys/socket.h,
1286  [ AC_DEFINE([HAVE_BSD_SENDFILE], [1], [Define to 1 if you have a BSDish sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
1287  AC_MSG_RESULT(no))
1288
1289 dnl --------------------------------------------------
1290 dnl * test for GTK+
1291 dnl --------------------------------------------------
1292
1293 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1294 if test "$GTK_CONFIG" != ""; then
1295    AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1296         fptools_cv_gtk_version=`$GTK_CONFIG --version`
1297     ])
1298     GTK_VERSION=$fptools_cv_gtk_version
1299 else
1300     GTK_VERSION=
1301 fi
1302
1303 case $fptools_cv_gtk_version in
1304   1.[[23]].*) ;;
1305   *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1306      GTK_CONFIG=
1307      ;;
1308 esac
1309
1310 AC_SUBST(GTK_CONFIG)
1311 AC_SUBST(GTK_VERSION)
1312
1313 dnl --------------------------------------------------
1314 dnl * Miscellaneous feature tests
1315 dnl --------------------------------------------------
1316
1317 dnl ** can we get alloca?
1318 AC_FUNC_ALLOCA
1319
1320 dnl ** Working vfork?
1321 AC_FUNC_VFORK
1322
1323 dnl ** determine whether or not const works
1324 AC_C_CONST
1325
1326 dnl ** are we big endian?
1327 AC_C_BIGENDIAN
1328
1329 dnl ** check for leading underscores in symbol names
1330 FPTOOLS_UNDERSCORE
1331
1332 dnl ** check for ld, and whether ld has -x option
1333 AC_PATH_PROG(LdCmdRaw, ld)
1334 case $HostOS_CPP in
1335  mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1336            ;;
1337  *) LdCmd=${LdCmdRaw}
1338     ;;
1339 esac
1340 AC_SUBST(LdCmd)
1341 FPTOOLS_LD_X
1342
1343 AC_MSG_CHECKING([for SIGPOLL])
1344 AC_EGREP_CPP(we_have_sigpoll,
1345 [#include <signal.h>
1346 #ifdef SIGPOLL
1347 we_have_sigpoll
1348 #endif
1349 ], AC_DEFINE([HAVE_SIGPOLL], [1], [Define to 1 if you have the sigpoll() function.]) haveSIGPOLL=yes, haveSIGPOLL=no)
1350 AC_MSG_RESULT([$haveSIGPOLL])
1351
1352 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1353 AC_EGREP_CPP(we_have_that_sysconf_thing,
1354 [
1355 #include <unistd.h>
1356 #ifdef _SC_GETGR_R_SIZE_MAX
1357 we_have_that_sysconf_thing
1358 #endif
1359 ],
1360 [AC_MSG_RESULT([yes])
1361 AC_DEFINE([HAVE_SC_GETGR_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETGR_R_SIZE_MAX.])],
1362 [AC_MSG_RESULT([no])])
1363
1364 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1365 AC_EGREP_CPP(we_have_that_sysconf_thing,
1366 [
1367 #include <unistd.h>
1368 #ifdef _SC_GETPW_R_SIZE_MAX
1369 we_have_that_sysconf_thing
1370 #endif
1371 ],
1372 [AC_MSG_RESULT([yes])
1373 AC_DEFINE([HAVE_SC_GETPW_R_SIZE_MAX], [1], [Define to 1 if <unistd.h> defines _SC_GETPW_R_SIZE_MAX.])],
1374 [AC_MSG_RESULT([no])])
1375
1376 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )