[project @ 1999-01-21 10:30:24 by simonm]
[ghc.git] / configure.in
1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.in | 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 # -------------------------------------------------------------------------
20 # Prepare to generate the following header files
21 #
22 #
23 AC_CONFIG_HEADER(mk/config.h)
24
25 # No, semi-sadly, we don't do `--srcdir'...
26 if test x"$srcdir" != 'x.' ; then
27     echo "This configuration does not support the \`--srcdir' option.."
28     exit 1
29 fi
30
31 #
32 # Remove common automounter nonsense + convert from UNC to DOS style paths
33 # (UNC awareness isn't quite there yet for cygwin32-beta18 and consituent tools.)
34 #
35 hardtop=`pwd`
36 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^/grasp_tmp|/local/grasp_tmp|' | sed 's|^//\(.\)/|\1:/|' `
37
38 echo ''
39 echo "*** The top of your build tree is: $hardtop"
40 AC_SUBST(hardtop)
41
42 dnl--------------------------------------------------------------------
43 dnl * Choose host(/target/build) platform
44 dnl--------------------------------------------------------------------
45
46 dnl Guess host/target/build platform(s) if necessary.
47 AC_CANONICAL_SYSTEM
48
49 # "$host" defaults to "$target"
50 if test "x$host" = xNONE ; then
51     host=$target
52 fi
53
54 dnl ** canonicalize platform names
55 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
56 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
57 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
58
59 if test x"$TargetPlatform" != x"$HostPlatform" ; then
60     echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
61     exit 1
62 fi
63
64 exeext=''
65 #
66 # The following will be more difficult when we *are* cross-compiling.
67 # Suitable names to slam in *_CPP are in platform.h.in.
68 # We also record the architecture, vendor, and operating system (OS)
69 # separately.
70 case $HostPlatform in
71 alpha-dec-osf[[12]]*)
72         HostPlatform=alpha-dec-osf1   # canonicalise for our purposes
73         TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
74         BuildPlatform=alpha-dec-osf1  # hack
75         HostPlatform_CPP='alpha_dec_osf1'
76         HostArch_CPP='alpha'
77         HostVendor_CPP='dec'
78         HostOS_CPP='osf1'
79         ;;
80 alpha-dec-osf[[34]]*)
81         HostPlatform=alpha-dec-osf3   # canonicalise for our purposes
82         TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
83         BuildPlatform=alpha-dec-osf3  # hack
84         HostPlatform_CPP='alpha_dec_osf3'
85         HostArch_CPP='alpha'
86         HostVendor_CPP='dec'
87         HostOS_CPP='osf3'
88         ;;
89 hppa1.1-hp-hpux*)
90         HostPlatform=hppa1.1-hp-hpux  # canonicalise for our purposes (hack)
91         TargetPlatform=hppa1.1-hp-hpux
92         BuildPlatform=hppa1.1-hp-hpux
93         HostPlatform_CPP='hppa1_1_hp_hpux'
94         HostArch_CPP='hppa1_1'
95         HostVendor_CPP='hp'
96         HostOS_CPP='hpux'
97         ;;
98 i[[3456]]86-*-linuxaout*)
99         HostPlatform=i386-unknown-linuxaout   # hack again
100         TargetPlatform=i386-unknown-linuxaout
101         BuildPlatform=i386-unknown-linuxaout
102         HostPlatform_CPP='i386_unknown_linuxaout'
103         HostArch_CPP='i386'
104         HostVendor_CPP='unknown'
105         HostOS_CPP='linuxaout'
106         ;;
107 i[[3456]]86-*-linux*)
108         HostPlatform=i386-unknown-linux # hack again
109         TargetPlatform=i386-unknown-linux
110         BuildPlatform=i386-unknown-linux
111         HostPlatform_CPP='i386_unknown_linux'
112         HostArch_CPP='i386'
113         HostVendor_CPP='unknown'
114         HostOS_CPP='linux'
115         ;;
116 i[[3456]]86-*-freebsd3*) # FreeBSD 3.0+ uses ELF
117         HostPlatform=i386-unknown-freebsd3 # hack again
118         TargetPlatform=i386-unknown-freebsd3
119         BuildPlatform=i386-unknown-freebsd3
120         HostPlatform_CPP='i386_unknown_freebsd3'
121         HostArch_CPP='i386'
122         HostVendor_CPP='unknown'
123         HostOS_CPP='freebsd3'
124         ;;
125 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
126         HostPlatform=i386-unknown-freebsd2 # hack again
127         TargetPlatform=i386-unknown-freebsd2
128         BuildPlatform=i386-unknown-freebsd2
129         HostPlatform_CPP='i386_unknown_freebsd2'
130         HostArch_CPP='i386'
131         HostVendor_CPP='unknown'
132         HostOS_CPP='freebsd2'
133         ;;
134 i[[3456]]86-*-netbsd*)
135         HostPlatform=i386-unknown-netbsd # hack again
136         TargetPlatform=i386-unknown-netbsd
137         BuildPlatform=i386-unknown-netbsd
138         HostPlatform_CPP='i386_unknown_netbsd'
139         HostArch_CPP='i386'
140         HostVendor_CPP='unknown'
141         HostOS_CPP='netbsd'
142         ;;
143 i[[3456]]86-*-solaris2*)
144         HostPlatform=i386-unknown-solaris2 # hack again
145         TargetPlatform=i386-unknown-solaris2
146         BuildPlatform=i386-unknown-solaris2
147         HostPlatform_CPP='i386_unknown_solaris2'
148         HostArch_CPP='i386'
149         HostVendor_CPP='unknown'
150         HostOS_CPP='solaris2'
151         ;;
152 i[[3456]]86-*-cygwin32*)
153         HostPlatform=i386-unknown-cygwin32 # hack again
154         TargetPlatform=i386-unknown-cygwin32
155         BuildPlatform=i386-unknown-cygwin32
156         HostPlatform_CPP='i386_unknown_cygwin32'
157         HostArch_CPP='i386'
158         HostVendor_CPP='unknown'
159         HostOS_CPP='cygwin32'
160         exeext='.exe'
161         ;;
162 m68k-next-nextstep2)
163         HostPlatform_CPP='m68k_next_nextstep2'
164         HostArch_CPP='m68k'
165         HostVendor_CPP='next'
166         HostOS_CPP='nextstep2'
167         ;;
168 m68k-next-nextstep3)
169         HostPlatform_CPP='m68k_next_nextstep3'
170         HostArch_CPP='m68k'
171         HostVendor_CPP='next'
172         HostOS_CPP='nextstep3'
173         ;;
174 i[[3456]]86-next-nextstep3)
175         HostPlatform=i386-next-nextstep3 # hack again
176         TargetPlatform=i386-next-nextstep3
177         BuildPlatform=i386-next-nextstep3
178         HostPlatform_CPP='i386_next_nextstep3'
179         HostArch_CPP='i386'
180         HostVendor_CPP='next'
181         HostOS_CPP='nextstep3'
182         ;;
183 m68k-sun-sunos4*)
184         HostPlatform=m68k-sun-sunos4
185         TargetPlatform=m68k-sun-sunos4 #hack
186         BuildPlatform=m68k-sun-sunos4 #hack
187         HostPlatform_CPP='m68k_sun_sunos4'
188         HostArch_CPP='m68k'
189         HostVendor_CPP='sun'
190         HostOS_CPP='sunos4'
191         ;;
192 mips-dec-ultrix*)
193         HostPlatform_CPP='mips_dec_ultrix'
194         HostArch_CPP='mipsel'   # NB a little different
195         HostVendor_CPP='dec'
196         HostOS_CPP='ultrix'
197         ;;
198 mips-sgi-irix*)
199         HostPlatform=mips-sgi-irix
200         TargetPlatform=mips-sgi-irix #hack
201         BuildPlatform=mips-sgi-irix #hack
202         HostPlatform_CPP='mips_sgi_irix'
203         HostArch_CPP='mipseb'   # NB a little different
204         HostVendor_CPP='sgi'
205         HostOS_CPP='irix'
206         ;;
207 rs6000-ibm-aix*)
208         HostPlatform=rs6000-ibm-aix
209         TargetPlatform=rs6000-ibm-aix #hack
210         BuildPlatform=rs6000-ibm-aix #hack
211         HostPlatform_CPP='rs6000_ibm_aix'
212         HostArch_CPP='rs6000'
213         HostVendor_CPP='ibm'
214         HostOS_CPP='aix'
215         ;;
216 powerpc-ibm-aix*)
217         HostPlatform=powerpc-ibm-aix
218         TargetPlatform=powerpc-ibm-aix #hack
219         BuildPlatform=powerpc-ibm-aix #hack
220         HostPlatform_CPP='powerpc_ibm_aix'
221         HostArch_CPP='powerpc'
222         HostVendor_CPP='ibm'
223         HostOS_CPP='aix'
224         ;;
225 sparc-sun-sunos4*)
226         HostPlatform=sparc-sun-sunos4
227         TargetPlatform=sparc-sun-sunos4 #hack
228         BuildPlatform=sparc-sun-sunos4 #hack
229         HostPlatform_CPP='sparc_sun_sunos4'
230         HostArch_CPP='sparc'
231         HostVendor_CPP='sun'
232         HostOS_CPP='sunos4'
233         ;;
234 sparc-sun-solaris2*)
235         HostPlatform=sparc-sun-solaris2
236         TargetPlatform=sparc-sun-solaris2 #hack
237         BuildPlatform=sparc-sun-solaris2 #hack
238         HostPlatform_CPP='sparc_sun_solaris2'
239         HostArch_CPP='sparc'
240         HostVendor_CPP='sun'
241         HostOS_CPP='solaris2'
242         ;;
243 *)
244         echo "Unrecognised platform: $HostPlatform"
245         exit 1
246         ;;
247 esac
248 echo "Canonicalised to: $HostPlatform"
249 test  x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
250 test  x"$BuildPlatform" != x"$HostPlatform"  && echo "Build platform set to $BuildPlatform"
251
252 BuildPlatform_CPP=$HostPlatform_CPP
253 TargetPlatform_CPP=$HostPlatform_CPP
254 BuildArch_CPP=$HostArch_CPP
255 TargetArch_CPP=$HostArch_CPP
256 BuildOS_CPP=$HostOS_CPP
257 HostOS_Full=$host_os
258 TargetOS_CPP=$HostOS_CPP
259 BuildVendor_CPP=$HostVendor_CPP
260 TargetVendor_CPP=$HostVendor_CPP
261
262 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
263 dnl AC_SUBST(BuildPlatform)
264
265 AC_SUBST(HostPlatform)
266 AC_SUBST(TargetPlatform)
267 AC_SUBST(HostPlatform_CPP)
268 dnl AC_SUBST(BuildPlatform_CPP)
269 dnl AC_SUBST(TargetPlatform_CPP)
270
271 AC_SUBST(HostArch_CPP)
272 dnl AC_SUBST(BuildArch_CPP)
273 dnl AC_SUBST(TargetArch_CPP)
274
275 AC_SUBST(HostOS_CPP)
276 AC_SUBST(HostOS_Full)
277 dnl AC_SUBST(BuildOS_CPP)
278 dnl AC_SUBST(TargetOS_CPP)
279
280 AC_SUBST(HostVendor_CPP)
281 dnl AC_SUBST(BuildVendor_CPP)
282 dnl AC_SUBST(TargetVendor_CPP)
283
284 AC_SUBST(exeext)
285
286 dnl --------------------------------------------------------------
287 dnl * Project specific configuration options
288 dnl --------------------------------------------------------------
289 dnl What follows is a bunch of options that can either be configured
290 dnl through command line options to the configure script or by
291 dnl supplying defns in the build tree's mk/build.mk. Having the option to
292 dnl use either is considered a Feature.
293
294 dnl ** What command to use to compile compiler sources ?
295 dnl --------------------------------------------------------------
296 AC_ARG_WITH(ghc-hc,
297 [  --with-ghc-hc=<haskell compiler>
298         Use a command different from 'ghc-2.10' to compile up the GHC compiler sources.
299          (no claims currently made that this will work with a compiler other than a
300           recent version of GHC, but you could always try...)
301 ],
302 [WithGhcHc="$withval"],
303 [WithGhcHc="ghc"]
304 )
305 AC_SUBST(WithGhcHc)
306
307 dnl ** Which gcc to use?
308 dnl --------------------------------------------------------------
309 AC_ARG_WITH(gcc,
310 [  --with-gcc=<gcc command>
311         Use a different command instead of 'gcc' for the GNU C compiler.
312 ],
313 [WhatGccIsCalled="$withval"],
314 [WhatGccIsCalled="gcc"]
315 )
316 AC_SUBST(WhatGccIsCalled)
317
318 dnl ** Booting from .hc files?
319 dnl --------------------------------------------------------------
320 AC_ARG_ENABLE(hc-boot,
321 [  --enable-hc-boot
322         Boot the Glasgow Haskell Compiler from intermediate .hc files.
323         (This option is mostly of interest to porters.)
324 ],
325 [BootingFromHc=YES],
326 [BootingFromHc=NO]
327 )
328 AC_SUBST(BootingFromHc)
329
330
331 dnl --------------------------------------------------------------
332 dnl End of configure script option section
333 dnl --------------------------------------------------------------
334
335
336 dnl --------------------------------------------------------------
337 dnl * General configuration checks
338 dnl --------------------------------------------------------------
339
340 dnl ** does #! work?
341 AC_SYS_INTERPRETER()
342
343 dnl ** look for `perl', but watch out for version 4.035
344 AC_PATH_PROG(PerlCmd,perl)
345 if test -z "$PerlCmd"; then
346    echo "You must install perl before you can continue"
347    echo "Perhaps it is already installed, but not in your PATH?"
348    exit 1
349 else
350 FPTOOLS_CHECK_PERL_VERSION
351 fi
352
353 dnl ** does #! path/to/perl work? (sometimes it's too long...)
354 FPTOOLS_SHEBANG_PERL
355
356
357 dnl ** look for GCC and find out which version
358 dnl     Figure out which C compiler to use.  Gcc is preferred.
359 dnl     If gcc, make sure it's at least 2.1
360 dnl
361 AC_PROG_CC
362 FPTOOLS_HAVE_GCC
363
364 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
365 AC_PROG_CPP
366 FPTOOLS_PROG_GNUCPP
367
368 dnl ** figure out how to do context diffs
369 FPTOOLS_PROG_DIFF
370
371
372 dnl ** look for a decent parser generator (bison preferred)
373 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing 
374 dnl  on the suitability of the 'yacc' returned.)
375 FPTOOLS_PROG_YACCY
376
377 dnl ** Find lex command (lex or flex) and library (-ll or -lfl)
378 dnl     ( not that we care about the latter, see mk/config.mk.in )
379 AC_PROG_LEX
380
381
382 dnl ** figure out how to do a BSD-ish install
383 AC_PROG_INSTALL
384
385 dnl If you can run configure, you certainly have /bin/sh
386 AC_DEFINE(HAVE_BIN_SH)
387
388 dnl ** how to invoke `ar' and `ranlib'
389 FPTOOLS_PROG_AR_AND_RANLIB
390
391
392 dnl ** Check to see whether ln -s works
393 AC_PROG_LN_S
394
395
396 dnl ** Find the path to sed
397 AC_PATH_PROG(SedCmd,sed)
398
399
400 dnl ** check for time command
401 AC_PATH_PROG(TimeCmd,time)
402
403
404 dnl ** check for tar
405 dnl   if GNU tar is named gtar, look for it first.
406 AC_PATH_PROGS(TarCmd,gtar tar,tar)
407
408 dnl ** check for gzip/compress
409 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
410
411 compress_nm=`basename $CompressCmd`
412 if test x"$compress_nm" = xgzip; then
413   CompressCmd="$CompressCmd -d"
414   CompressSuffix="gz"
415 else
416   CompressSuffix="Z"
417 fi
418 AC_SUBST(CompressCmd)
419 AC_SUBST(CompressSuffix)
420
421 dnl ** check for installed happy binary + version
422 dnl    (don't do it if we're booting from .hc files though.)
423 if (test "$BootingFromHc" = "NO"); then
424 FPTOOLS_HAPPY
425 fi;
426
427 dnl --------------------------------------------------
428 dnl ### program checking section ends here ###
429 dnl --------------------------------------------------
430
431 dnl --------------------------------------------------
432 dnl * Platform header file and syscall feature tests
433 dnl ### checking the state of the local header files and syscalls ###
434
435 dnl ** check for full ANSI header (.h) files
436 AC_HEADER_STDC
437
438 dnl ** check for specific header (.h) files that we are interested in
439 AC_CHECK_HEADERS(Files.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdlib.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 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/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h vfork.h readline/readline.h bfd.h)
440
441 dnl ** check for DOS include files
442 AC_CHECK_HEADERS(dos.h conio.h io.h std.h) 
443
444 dnl ** check for Windows include files
445 AC_CHECK_HEADERS(windows.h)
446
447 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
448 AC_HEADER_TIME
449
450 dnl dynamic loading include files
451 AC_CHECK_HEADERS(dlfcn.h dl.h) 
452
453 dnl ** check for farcalloc (in bcc)
454 AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
455
456 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
457 AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
458
459 dnl ** how do we get a timezone name, and UTC offset ?
460 AC_STRUCT_TIMEZONE
461
462 dnl ** what's the type of timezone?
463 FPTOOLS_TYPE_TIMEZONE
464
465 dnl ** do we have altzone?
466 FPTOOLS_ALTZONE
467
468 dnl ** does struct stat contain st_blksize?
469 AC_STRUCT_ST_BLKSIZE
470
471 dnl ** what are the sizes of various types
472 dnl    (these must come before GHC_CHECK_ALIGNMENT)
473 AC_CHECK_SIZEOF(unsigned int,4)
474 AC_CHECK_SIZEOF(float,       4)
475 AC_CHECK_SIZEOF(double,      8)
476 AC_CHECK_SIZEOF(long,        4)
477 AC_CHECK_SIZEOF(void *,      4)
478
479 dnl ** what are alignment constraints on various types
480 FPTOOLS_CHECK_ALIGNMENT(unsigned int) dnl redundant but harmless
481 FPTOOLS_CHECK_ALIGNMENT(long)
482 FPTOOLS_CHECK_ALIGNMENT(float)
483 FPTOOLS_CHECK_ALIGNMENT(double)
484
485 dnl ** do we have long longs?
486 FPTOOLS_C_LONG_LONG
487
488 dnl ** can we open files in binary mode?
489 FPTOOLS_O_BINARY
490
491 dnl ** check for GetModuleFileName and WinExec (windows only)
492 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName)       dnl Windows
493 dnl Doesn't work because the linker can't see the functions if
494 dnl you omit the #include <windows.h>.  (I've no idea why not...)
495
496 FPTOOLS_TRY_LINK_NOWARN(,[
497 #if HAVE_WINDOWS_H
498 #include <windows.h>
499 #endif
500 main() { 
501   WinExec("",0);
502   exit(0);
503 }
504 ],
505 [have_winexec=1],
506 [have_winexec=0])
507 if test "$have_winexec" = "1"; then
508 AC_DEFINE(HAVE_WINEXEC)
509 fi
510
511 FPTOOLS_TRY_LINK_NOWARN(,[
512 #if HAVE_WINDOWS_H
513 #include <windows.h>
514 #endif
515 main() { 
516   char* dir;
517   GetModuleFileName((HMODULE)0,dir,0);
518   exit(0);
519 }
520 ],
521 [have_getmodulefilename=1],
522 [have_getmodulefilename=0])
523 if test "$have_getmodulefilename" = "1"; then
524 AC_DEFINE(HAVE_GETMODULEFILENAME)
525 fi
526
527 dnl ** check return type of signal handlers
528 dnl Foo: assumes we can use prototypes.
529 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
530 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
531 dnl [AC_TRY_COMPILE([#include <sys/types.h>
532 dnl #include <signal.h>
533 dnl #ifdef signal
534 dnl #undef signal
535 dnl #endif
536 dnl void (*signal (int, void (*)(int)))(int);
537 dnl ],
538 dnl [int i;], 
539 dnl ac_cv_type_signal_handler=void_int,
540 dnl ac_cv_type_signal_handler=int_void)])
541 dnl if test "$ac_cv_type_signal_handler" = void_int; then
542 dnl AC_DEFINE(VOID_INT_SIGNALS)
543 dnl fi
544
545 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
546 AC_TYPE_SIGNAL
547 if test "$ac_cv_type_signal" = void; then
548 AC_DEFINE(VOID_INT_SIGNALS)
549 fi
550
551 dnl ** check for more functions
552 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
553 AC_CHECK_FUNCS(strcmp)
554 AC_CHECK_FUNCS(realpath _fullpath)  
555 AC_CHECK_FUNCS(PBHSetVolSync macsystem)  
556 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
557 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
558 AC_CHECK_FUNCS(snprintf  _snprintf )  
559 AC_CHECK_FUNCS(popen     _popen )  
560 AC_CHECK_FUNCS(pclose    _pclose )  
561
562
563 dnl ** check for specific library functions that we are interested in
564 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat symlink sysconf timelocal times vadvise vfork)
565
566 dnl ** check whether this machine has gmp2 installed
567 AC_CHECK_LIB(gmp,  mpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
568   AC_CHECK_LIB(gmp2, mpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp2,
569     HaveLibGmp=No; LibGmp=not-installed))
570 AC_SUBST(HaveLibGmp)
571 AC_SUBST(LibGmp)
572
573 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
574 dnl    the order of these tests matters: bfd needs liberty
575 AC_CHECK_LIB(iberty, xmalloc)
576 AC_CHECK_LIB(bfd,    bfd_init)
577
578 dnl ################################################################
579 dnl Check for libraries
580 dnl ################################################################
581
582 FPTOOLS_CHECK_LIB_NOWARN(dl, dlopen)
583 FPTOOLS_CHECK_LIB_NOWARN(dld, shl_load)
584 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
585
586 dnl --------------------------------------------------
587 dnl * Miscellaneous feature tests
588 dnl --------------------------------------------------
589
590 dnl ** can we get alloca?
591 AC_FUNC_ALLOCA
592
593 dnl ** determine whether or not const works
594 AC_C_CONST
595
596 dnl ** determine whether ANSI-function prototypes work?
597 AC_C_PROTOTYPES          
598
599 dnl ** are we big endian?
600 AC_C_BIGENDIAN
601 # Allay users' general fear of warnings of any kind.
602 errprint((fptools configure script wizard sez: "don't worry, the above warning is harmless (to us.)")
603 )
604
605 dnl ** determine the return type of signal()
606 AC_TYPE_SIGNAL
607
608 dnl ** check for leading underscores in symbol names
609 FPTOOLS_UNDERSCORE
610
611 dnl ** how is the end of text section signalled?
612 FPTOOLS_END_TEXT_SECTION
613
614 dnl ** how is the end of data section signalled?
615 FPTOOLS_END_DATA_SECTION
616
617 dnl ** code before data?
618 FPTOOLS_CODE_BEFORE_DATA
619
620 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )
621
622 echo ''
623 echo '************************************************'
624 echo '*** NOW DO: gmake boot followed by gmake all'
625 echo '***         (where gmake == GNU make)'
626 echo '************************************************'
627 exit 0