1: dnl Process this file with autoconf to produce a configure script.
2:
3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc.
4:
5: #This file is part of Gforth.
6:
7: #Gforth is free software; you can redistribute it and/or
8: #modify it under the terms of the GNU General Public License
9: #as published by the Free Software Foundation; either version 2
10: #of the License, or (at your option) any later version.
11:
12: #This program is distributed in the hope that it will be useful,
13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
15: #GNU General Public License for more details.
16:
17: #You should have received a copy of the GNU General Public License
18: #along with this program; if not, write to the Free Software
19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20:
21:
22: dnl We use some automake macros here,
23: dnl but don't use automake for creating Makefile.in
24: AC_INIT([gforth],[0.6.2-20030910],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
25: AC_PREREQ(2.54)
26: #snapshots have numbers major.minor.release-YYYYMMDD
27: #note that lexicographic ordering must be heeded.
28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
29: UPDATED="September 10, 2003"
30: AC_SUBST(UPDATED)
31: AC_CONFIG_HEADERS(engine/config.h)
32:
33: #suppress the "-g -O2" default
34: test "$CFLAGS" || CFLAGS=-O2
35:
36: AC_ARG_ENABLE(force-reg,
37: [ --enable-force-reg Use explicit register declarations if they appear in
38: the machine.h file. This can cause a good speedup,
39: but also incorrect code with some gcc versions on
40: some processors (default disabled).],
41: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
42: AC_SUBST(PROFEXES)
43: AC_SUBST(PROFOBJS)
44: AC_ARG_ENABLE(prof,
45: [ --enable-prof Build gforth-prof, which outputs frequently occuring
46: sequences of primitives.],
47: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o")
48:
49: AC_ARG_WITH(debug,
50: [ --with-debug specifies option -g to compile with debug info
51: --without-debug omits the -g switch and creates smaller images on
52: machines where "strip" has problems with gcc style
53: debugging informations.],
54: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
55:
56: dnl PEEPHOLE="yes"
57: dnl AC_ARG_WITH(peephole,
58: dnl [ --with-peephole Enable peephole optimization (default)
59: dnl --without-peephole disables peephole optimization. Creates smaller,
60: dnl but slower images.],
61: dnl PEEPHOLE="$withval")
62:
63: #variables mentioned in INSTALL
64: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
65: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
66: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
67: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
68: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
69: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
70: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
71: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
72: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
73: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
74: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
75: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
76: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
77: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
78:
79: #set up feature test macros, so the tests get them right:
80: # turn on all POSIX, SUSv3, and GNU features if available
81: AC_GNU_SOURCE
82: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
83:
84: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
85: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
86: dnl but not for _XOPEN_SOURCE)
87: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
88: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
89: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
90: # turn on large file support with 64-bit off_t where available
91: AC_SYS_LARGEFILE
92: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
93: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
94:
95: #currently we force direct threading this way. Eventually we should
96: #setup in the arch and engine files right
97:
98: AC_PROG_CC
99:
100: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
101:
102: AC_SUBST(CC)
103: AC_SUBST(DEBUGFLAG)
104:
105: AC_MSG_CHECKING(make type)
106: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
107:
108: GNUMAKE='#'
109: test "$make_type" = "GNU Make" && GNUMAKE=''
110:
111: AC_MSG_RESULT($make_type)
112:
113: AC_SUBST(GNUMAKE)
114:
115: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
116: OLDLDFLAGS=$LDFLAGS
117: LDFLAGS="$LDFLAGS -export-dynamic"
118: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
119: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
120: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
121: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
122: AC_MSG_RESULT($ac_export_dynamic)
123:
124: #terminology is a bit unusual here: The host is the system on which
125: #gforth will run; the system on which configure will run is the `build'
126: AC_CANONICAL_HOST
127: case "$host_cpu" in
128: arm*)
129: machine=arm
130: CFLAGS="$CFLAGS -fomit-frame-pointer"
131: if test -z $no_dynamic_default; then
132: no_dynamic_default=1
133: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
134: fi
135: ;;
136: hppa*)
137: machine=hppa
138: $srcdir/mkinstalldirs arch/hppa
139: AC_LIBOBJ(../arch/hppa/cache)
140: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
141: LDFLAGS="$LDFLAGS -Xlinker -N"
142: LIBS="$LIBS -L/lib/pa1.1/"
143: ;;
144: sparc*)
145: machine=sparc
146: ;;
147: i386)
148: machine=386
149: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
150: ;;
151: i486)
152: machine=386
153: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
154: ;;
155: i*86)
156: machine=386
157: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
158: CFLAGS_1="$CFLAGS"
159: CFLAGS="$CFLAGS -march=pentium"
160: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
161: ;;
162: x86_64)
163: machine=amd64
164: ac_includes_default="$ac_includes_default
165: #include \"arch/generic/128bit.h\""
166: ;;
167: ia64*)
168: machine=ia64
169: AC_LIBOBJ(../arch/ia64/flush_icache_block)
170: test "$skipcode" || skipcode="nop.i 0"
171: #".skip 16" passes the test below,
172: # but gives an assembler error in engine
173: ;;
174: m68k)
175: machine=m68k
176: CFLAGS="$CFLAGS -fomit-frame-pointer"
177: if test "$host_os" = "nextstep3"
178: then
179: AC_LIBOBJ(termios)
180: fi
181: ;;
182: mips*)
183: machine=mips
184: #dynamic native code has the following problems on MIPS:
185: #
186: #1) J/JAL seems relocatable, but is are only
187: #relocatable within a 256MB-segment. While we try to
188: #get the linker to arrange this, there is no guarantee
189: #that this will succeed (and if the user uses a lot of
190: #memory, it is likely to fail).
191: #
192: #2) The way we generate dynamic native code may
193: #violate MIPS architectural restrictions (in
194: #particular, the delay slots of LW, MFLO, etc.)
195: #
196: #Therefore we disable dynamic native code by default:
197: if test -z $no_dynamic_default; then
198: no_dynamic_default=1
199: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
200: fi
201: ;;
202: alpha*)
203: machine=alpha
204: #full IEEE FP support for more uniformity across platforms:
205: CFLAGS="$CFLAGS -mieee"
206: ;;
207: power*|rs6000)
208: machine=power
209: $srcdir/mkinstalldirs arch/power
210: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
211: #long long is broken on (at least) gcc-2.95.* for PPC
212: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
213: ;;
214: *)
215: AC_MSG_WARN([Using a generic machine description])
216: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
217: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
218: machine=generic
219: #I-cache flushing would be needed for dynamic code generation
220: if test -z $no_dynamic_default; then
221: no_dynamic_default=1
222: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
223: fi
224: esac
225: AC_SUBST(host)
226:
227: dnl the following macro produces a warning with autoconf-2.1
228: AC_CHECK_SIZEOF(char *)
229: case "$ac_cv_sizeof_char_p" in
230: 2)
231: wordsize=16
232: ;;
233: 4)
234: wordsize=32
235: ;;
236: 8)
237: wordsize=64
238: ;;
239: esac
240:
241: AC_CHECK_SIZEOF(char)
242: AC_CHECK_SIZEOF(short)
243: AC_CHECK_SIZEOF(int)
244: AC_CHECK_SIZEOF(long)
245: AC_CHECK_SIZEOF(long long)
246: AC_CHECK_SIZEOF(intptr_t)
247: AC_CHECK_SIZEOF(int128_t)
248: AC_CHECK_SIZEOF(uint128_t)
249:
250: AC_MSG_CHECKING([for a C type for cells])
251: ac_cv_int_type_cell=none
252: case "$ac_cv_sizeof_char_p" in
253: $ac_cv_sizeof_int)
254: ac_cv_int_type_cell=int
255: ;;
256: $ac_cv_sizeof_short)
257: ac_cv_int_type_cell=short
258: ;;
259: $ac_cv_sizeof_char)
260: ac_cv_int_type_cell=char
261: ;;
262: $ac_cv_sizeof_long)
263: ac_cv_int_type_cell=long
264: ;;
265: $ac_cv_sizeof_long_long)
266: ac_cv_int_type_cell="long long"
267: ;;
268: $ac_cv_sizeof_intptr_t)
269: ac_cv_int_type_cell="intptr_t"
270: ;;
271: $ac_cv_sizeof_int128_t)
272: ac_cv_int_type_cell="int128_t"
273: ;;
274: esac
275: AC_MSG_RESULT($ac_cv_int_type_cell)
276: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
277:
278: AC_MSG_CHECKING([for a C type for double-cells])
279: ac_cv_int_type_double_cell=none
280: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
281: $ac_cv_sizeof_short)
282: ac_cv_int_type_double_cell=short
283: ;;
284: $ac_cv_sizeof_int)
285: ac_cv_int_type_double_cell=int
286: ;;
287: $ac_cv_sizeof_long)
288: ac_cv_int_type_double_cell=long
289: ;;
290: $ac_cv_sizeof_long_long)
291: ac_cv_int_type_double_cell="long long"
292: ;;
293: $ac_cv_sizeof_intptr_t)
294: ac_cv_int_type_double_cell="intptr_t"
295: ;;
296: $ac_cv_sizeof_int128_t)
297: ac_cv_int_type_double_cell="int128_t"
298: ;;
299: esac
300: AC_MSG_RESULT($ac_cv_int_type_double_cell)
301:
302: AC_MSG_CHECKING([for a C type for unsigned double-cells])
303: ac_cv_int_type_double_ucell=none
304: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
305: $ac_cv_sizeof_short)
306: ac_cv_int_type_double_ucell="unsigned short"
307: ;;
308: $ac_cv_sizeof_int)
309: ac_cv_int_type_double_ucell="unsigned int"
310: ;;
311: $ac_cv_sizeof_long)
312: ac_cv_int_type_double_ucell="unsigned long"
313: ;;
314: $ac_cv_sizeof_long_long)
315: ac_cv_int_type_double_ucell="unsigned long long"
316: ;;
317: $ac_cv_sizeof_intptr_t)
318: ac_cv_int_type_double_ucell="unsigned intptr_t"
319: ;;
320: $ac_cv_sizeof_uint128_t)
321: ac_cv_int_type_double_ucell="uint128_t"
322: ;;
323: esac
324: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
325:
326: if test "$ac_cv_int_type_double_cell" = none || \
327: test "$ac_cv_int_type_double_ucell" = none
328: then
329: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
330: AC_LIBOBJ(dblsub)
331: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
332: else
333: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
334: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
335: fi
336:
337: AC_TYPE_OFF_T
338: AC_CHECK_SIZEOF(off_t)
339: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
340: ac_small_off_t=$?
341: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
342:
343: ENGINE_FLAGS=
344: AC_SUBST(ENGINE_FLAGS)
345:
346: # Try if GCC understands -fno-gcse
347:
348: AC_MSG_CHECKING([if $CC understands -fno-gcse])
349: CFLAGS_1="$CFLAGS"
350: CFLAGS="$CFLAGS -fno-gcse"
351: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
352: CFLAGS="$CFLAGS_1"
353: AC_MSG_RESULT($ac_nogcse)
354:
355: # Try if GCC understands -fno-strict-aliasing
356: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
357: CFLAGS_1="$CFLAGS"
358: CFLAGS="$CFLAGS -fno-strict-aliasing"
359: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
360: CFLAGS="$CFLAGS_1"
361: AC_MSG_RESULT($ac_nostrictaliasing)
362:
363: # Try if GCC understands -fno-crossjumping
364: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
365: CFLAGS_1="$CFLAGS"
366: CFLAGS="$CFLAGS -fno-crossjumping"
367: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
368: CFLAGS="$CFLAGS_1"
369: AC_MSG_RESULT($ac_nocrossjumping)
370:
371: # Try if GCC understands -fno-reorder-blocks
372: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
373: CFLAGS_1="$CFLAGS"
374: CFLAGS="$CFLAGS -fno-reorder-blocks"
375: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
376: CFLAGS="$CFLAGS_1"
377: AC_MSG_RESULT($ac_noreorder_blocks)
378:
379: # Try if GCC understands __attribute__((unused))
380: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
381: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
382: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
383: AC_MSG_RESULT($MAYBE_UNUSED)
384:
385: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
386: AC_SUBST(asm_fs)
387:
388: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
389: AC_SUBST(disasm_fs)
390:
391: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
392:
393: case "$host_os" in
394: *win32|cygwin)
395: DIRSEP="\\\\"
396: PATHSEP=";"
397: #we want the builtins of command.com/cmd.exe and its
398: # handling of .com files.
399: #$COMSPEC contains the name of the Windows shell;
400: # the ./ is there, because the bash does not recognize
401: # absolute DOS filenames
402: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
403: ;;
404: *darwin*)
405: #Darwin uses some funny preprocessor by default; eliminate it:
406: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
407: CFLAGS="$CFLAGS -no-cpp-precomp"
408: DIRSEP="/"
409: PATHSEP=":"
410: DEFAULTSYSTEMPREFIX=""
411: ;;
412: *)
413: DIRSEP="/"
414: PATHSEP=":"
415: DEFAULTSYSTEMPREFIX=""
416: ;;
417: esac
418: AC_SUBST(DIRSEP)
419: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
420: AC_SUBST(PATHSEP)
421: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
422: AC_SUBST(DEFAULTSYSTEMPREFIX)
423: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
424:
425: dnl Now a little support for DOS/DJGCC
426: AC_SUBST(GFORTH_EXE)
427: GFORTH_EXE=""
428: AC_SUBST(GFORTHFAST_EXE)
429: GFORTHFAST_EXE=""
430: AC_SUBST(GFORTHITC_EXE)
431: GFORTHITC_EXE=""
432: AC_SUBST(GFORTHDITC_EXE)
433: GFORTHDITC_EXE=""
434:
435: AC_SUBST(FORTHSIZES)
436:
437: dnl if test "$PEEPHOLE" = "yes"
438: dnl then
439: dnl PEEPHOLEFLAG="true"
440: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
441: dnl else
442: dnl PEEPHOLEFLAG="false"
443: dnl fi
444: PEEPHOLEFLAG="true"
445: AC_SUBST(PEEPHOLEFLAG)
446:
447: dnl copy commands for systems that don't have links
448: AC_SUBST(LINK_KERNL)
449: LINK_KERNL=""
450:
451: #if test $host_os=dos
452: #then
453: # echo Configuring for DOS!!!
454: # MAKE_EXE="coff2exe gforth"
455: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
456: #fi
457:
458: dnl the following macro produces a warning with autoconf-2.1
459: AC_C_BIGENDIAN
460: AC_SUBST(KERNEL)
461: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
462: if test $ac_cv_c_bigendian = yes; then
463: bytesex=b
464: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
465: else
466: bytesex=l
467: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
468: fi
469:
470: #check how to do asm(".skip 16")
471: AC_MSG_CHECKING([if and how we can waste code space])
472: if test -z "$skipcode"; then
473: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
474: do
475: AC_TRY_RUN(
476: [int foo(int,int,int);
477: main()
478: {
479: exit(foo(0,0,0)!=16);
480: }
481: int foo(int x, int y, int z)
482: {
483: static void *labels[]={&&label1, &&label2};
484: if (x) {
485: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
486: label1:
487: asm(".skip 16"); /* or ".space 16" or somesuch */
488: label2: ;
489: }
490: {
491: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
492: return labels[1]-labels[0];
493: }
494: }]
495: ,skipcode=$i; break
496: ,,)
497: done
498: fi
499: AC_MSG_RESULT($skipcode)
500: if test "$skipcode" = no
501: then
502: if test -z $no_dynamic_default; then
503: no_dynamic_default=1
504: AC_MSG_WARN(Disabling default dynamic native code generation)
505: fi
506: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
507: else
508: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
509: fi
510:
511: test "$no_dynamic_default" || no_dynamic_default=0
512: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
513:
514: dnl Checks for programs.
515: AC_PROG_LN_S
516: AC_PROG_INSTALL
517:
518: dnl Checks for library functions
519: dnl This check is just for making later checks link with libm.
520: dnl using sin here is no good idea since it is built-into gcc and typechecked
521: AC_CHECK_LIB(m,asin)
522: AC_CHECK_LIB(dl,dlopen)
523: dnl check for ffcall libraries
524: dnl unfortunately, these four calls are separated out into a library each.
525: AC_CHECK_LIB(avcall,__builtin_avcall)
526: AC_CHECK_LIB(callback,__vacall_r)
527: AC_CHECK_LIB(vacall,vacall)
528: AC_CHECK_LIB(trampoline,alloc_trampoline)
529: FFCALLFLAG="false"
530: OLDCALLFLAG="true"
531: test $ac_cv_lib_avcall___builtin_avcall = yes && FFCALLFLAG="true" && OLDCALLFLAG="false" && AC_DEFINE(HAS_FFCALL,,[define this if you want to use the ffcall libraries])
532: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
533: AC_SUBST(FFCALLFLAG)
534: AC_SUBST(OLDCALLFLAG)
535: if test "$host_os" != "nextstep3"
536: then
537: AC_FUNC_MEMCMP
538: fi
539: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
540: AC_FUNC_FSEEKO
541: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
542: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
543: AC_DECL_SYS_SIGLIST
544: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
545: AC_CHECK_FUNCS(expm1 log1p)
546: AC_REPLACE_FUNCS(rint ecvt)
547: dnl No check for select, because our replacement is no good under
548: dnl anything but DOS
549: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
550: AC_FUNC_FNMATCH
551: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
552: AC_CHECK_FUNCS(mmap sysconf getpagesize)
553: AM_PATH_LISPDIR
554:
555: kernel_fi=kernl${wordsize}${bytesex}.fi
556: AC_SUBST(kernel_fi)
557:
558: #this breaks bindists
559: #dnl replace srource directory by absolute value
560: #if test $srcdir = "."; then srcdir=`pwd`
561: #fi
562:
563: AC_SUBST(machine)
564: AC_CONFIG_FILES([
565: Makefile
566: Makedist
567: gforthmi
568: vmgen
569: machpc.fs
570: engine/Makefile
571: doc/version.texi ])
572: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
573: chmod +x gforthmi
574: chmod +x vmgen
575: test -d kernel||mkdir kernel]],[[]])
576: AC_OUTPUT
577:
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