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 "$CFLAGS" || CFLAGS=-O2
35:
36: AC_ARG_ENABLE(force-reg,
37: [ --enable-force-reg Use explicit register declarations if they appear in
38: the machine.h file. This can cause a good speedup,
39: but also incorrect code with some gcc versions on
40: some processors (default disabled).],
41: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
42: AC_ARG_ENABLE(force-ll,
43: [ --enable-force-ll Use explicit long long declarations if they appear in
44: the machine.h file. This can cause a good speedup,
45: but also incorrect code with some gcc versions on
46: some processors (default disabled).],
47: AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)]))
48: AC_SUBST(PROFEXES)
49: AC_SUBST(PROFOBJS)
50:
51: AC_ARG_ENABLE(gcc-pr15242-workaround,
52: AC_HELP_STRING([--disable-gcc-pr15242-workaround],[Disables
53: dynamic code generation on some versions of gcc
54: (slowdown~2 on Athlon) and causes slower building
55: of gforth (but gforth speedups) on others.
56: (default enabled)]),
57: ,enable_gcc_pr15242_workaround=yes)
58: test "$enable_gcc_pr15242_workaround" = "no"||
59: AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
60: generation on gccs affected by PR15242])
61:
62: AC_ARG_ENABLE(prof,
63: [ --enable-prof Build gforth-prof, which outputs frequently occuring
64: sequences of primitives.],
65: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o")
66:
67: AC_ARG_WITH(debug,
68: [ --with-debug specifies option -g to compile with debug info
69: --without-debug omits the -g switch and creates smaller images on
70: machines where "strip" has problems with gcc style
71: debugging informations.],
72: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
73:
74: dnl PEEPHOLE="yes"
75: dnl AC_ARG_WITH(peephole,
76: dnl [ --with-peephole Enable peephole optimization (default)
77: dnl --without-peephole disables peephole optimization. Creates smaller,
78: dnl but slower images.],
79: dnl PEEPHOLE="$withval")
80:
81: #variables mentioned in INSTALL
82: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
83: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
84: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
85: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
86: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
87: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
88: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
89: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
90: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
91: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
92: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
93: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
94: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
95: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
96:
97: #set up feature test macros, so the tests get them right:
98: # turn on all POSIX, SUSv3, and GNU features if available
99: AC_GNU_SOURCE
100: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
101:
102: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
103: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
104: dnl but not for _XOPEN_SOURCE)
105: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
106: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
107: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
108: # turn on large file support with 64-bit off_t where available
109: AC_SYS_LARGEFILE
110: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
111: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
112:
113: #currently we force direct threading this way. Eventually we should
114: #setup in the arch and engine files right
115:
116: AC_PROG_CC
117:
118: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
119:
120: AC_SUBST(CC)
121: AC_SUBST(DEBUGFLAG)
122:
123: AC_MSG_CHECKING(make type)
124: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
125:
126: GNUMAKE='#'
127: test "$make_type" = "GNU Make" && GNUMAKE=''
128:
129: AC_MSG_RESULT($make_type)
130:
131: AC_SUBST(GNUMAKE)
132:
133: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
134: OLDLDFLAGS=$LDFLAGS
135: LDFLAGS="$LDFLAGS -export-dynamic"
136: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
137: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
138: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
139: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
140: AC_MSG_RESULT($ac_export_dynamic)
141:
142: #terminology is a bit unusual here: The host is the system on which
143: #gforth will run; the system on which configure will run is the `build'
144: AC_CANONICAL_HOST
145: case "$host_cpu" in
146: arm*)
147: machine=arm
148: CFLAGS="$CFLAGS -fomit-frame-pointer"
149: if test -z $no_dynamic_default; then
150: no_dynamic_default=1
151: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
152: fi
153: ;;
154: hppa*)
155: machine=hppa
156: $srcdir/mkinstalldirs arch/hppa
157: AC_LIBOBJ(../arch/hppa/cache)
158: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
159: LDFLAGS="$LDFLAGS -Xlinker -N"
160: LIBS="$LIBS -L/lib/pa1.1/"
161: ;;
162: sparc*)
163: machine=sparc
164: ;;
165: i386)
166: machine=386
167: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
168: ;;
169: i486)
170: machine=386
171: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
172: ;;
173: i*86)
174: machine=386
175: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
176: CFLAGS_1="$CFLAGS"
177: CFLAGS="$CFLAGS -march=pentium"
178: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
179: ;;
180: x86_64)
181: machine=amd64
182: ;;
183: ia64*)
184: machine=ia64
185: AC_LIBOBJ(../arch/ia64/flush_icache_block)
186: test "$skipcode" || skipcode="nop.i 0"
187: #".skip 16" passes the test below,
188: # but gives an assembler error in engine
189: ;;
190: m68k)
191: machine=m68k
192: CFLAGS="$CFLAGS -fomit-frame-pointer"
193: if test "$host_os" = "nextstep3"
194: then
195: AC_LIBOBJ(termios)
196: fi
197: ;;
198: mips*)
199: machine=mips
200: #dynamic native code has the following problems on MIPS:
201: #
202: #1) J/JAL seems relocatable, but is are only
203: #relocatable within a 256MB-segment. While we try to
204: #get the linker to arrange this, there is no guarantee
205: #that this will succeed (and if the user uses a lot of
206: #memory, it is likely to fail).
207: #
208: #2) The way we generate dynamic native code may
209: #violate MIPS architectural restrictions (in
210: #particular, the delay slots of LW, MFLO, etc.)
211: #
212: #Therefore we disable dynamic native code by default:
213: if test -z $no_dynamic_default; then
214: no_dynamic_default=1
215: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
216: fi
217: ;;
218: alpha*)
219: machine=alpha
220: #full IEEE FP support for more uniformity across platforms:
221: CFLAGS="$CFLAGS -mieee"
222: ;;
223: power*|rs6000)
224: machine=power
225: $srcdir/mkinstalldirs arch/power
226: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
227: #long long is broken on (at least) gcc-2.95.* for PPC
228: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
229: ;;
230: *)
231: AC_MSG_WARN([Using a generic machine description])
232: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
233: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
234: machine=generic
235: #I-cache flushing would be needed for dynamic code generation
236: if test -z $no_dynamic_default; then
237: no_dynamic_default=1
238: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
239: fi
240: esac
241: AC_SUBST(host)
242:
243: if test "${enable_force_ll+set}" = set; then
244: ac_includes_default="$ac_includes_default
245: #include \"arch/generic/128bit.h\""
246: fi
247:
248: dnl the following macro produces a warning with autoconf-2.1
249: AC_CHECK_SIZEOF(char *)
250: case "$ac_cv_sizeof_char_p" in
251: 2)
252: wordsize=16
253: ;;
254: 4)
255: wordsize=32
256: ;;
257: 8)
258: wordsize=64
259: ;;
260: esac
261:
262: AC_CHECK_SIZEOF(char)
263: AC_CHECK_SIZEOF(short)
264: AC_CHECK_SIZEOF(int)
265: AC_CHECK_SIZEOF(long)
266: AC_CHECK_SIZEOF(long long)
267: AC_CHECK_SIZEOF(intptr_t)
268: AC_CHECK_SIZEOF(int128_t)
269: AC_CHECK_SIZEOF(uint128_t)
270:
271: AC_MSG_CHECKING([for a C type for cells])
272: ac_cv_int_type_cell=none
273: case "$ac_cv_sizeof_char_p" in
274: $ac_cv_sizeof_int)
275: ac_cv_int_type_cell=int
276: ;;
277: $ac_cv_sizeof_short)
278: ac_cv_int_type_cell=short
279: ;;
280: $ac_cv_sizeof_char)
281: ac_cv_int_type_cell=char
282: ;;
283: $ac_cv_sizeof_long)
284: ac_cv_int_type_cell=long
285: ;;
286: $ac_cv_sizeof_long_long)
287: ac_cv_int_type_cell="long long"
288: ;;
289: $ac_cv_sizeof_intptr_t)
290: ac_cv_int_type_cell="intptr_t"
291: ;;
292: $ac_cv_sizeof_int128_t)
293: ac_cv_int_type_cell="int128_t"
294: ;;
295: esac
296: AC_MSG_RESULT($ac_cv_int_type_cell)
297: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
298:
299: AC_MSG_CHECKING([for a C type for double-cells])
300: ac_cv_int_type_double_cell=none
301: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
302: $ac_cv_sizeof_short)
303: ac_cv_int_type_double_cell=short
304: ;;
305: $ac_cv_sizeof_int)
306: ac_cv_int_type_double_cell=int
307: ;;
308: $ac_cv_sizeof_long)
309: ac_cv_int_type_double_cell=long
310: ;;
311: $ac_cv_sizeof_long_long)
312: ac_cv_int_type_double_cell="long long"
313: ;;
314: $ac_cv_sizeof_intptr_t)
315: ac_cv_int_type_double_cell="intptr_t"
316: ;;
317: $ac_cv_sizeof_int128_t)
318: ac_cv_int_type_double_cell="int128_t"
319: ;;
320: esac
321: AC_MSG_RESULT($ac_cv_int_type_double_cell)
322:
323: AC_MSG_CHECKING([for a C type for unsigned double-cells])
324: ac_cv_int_type_double_ucell=none
325: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
326: $ac_cv_sizeof_short)
327: ac_cv_int_type_double_ucell="unsigned short"
328: ;;
329: $ac_cv_sizeof_int)
330: ac_cv_int_type_double_ucell="unsigned int"
331: ;;
332: $ac_cv_sizeof_long)
333: ac_cv_int_type_double_ucell="unsigned long"
334: ;;
335: $ac_cv_sizeof_long_long)
336: ac_cv_int_type_double_ucell="unsigned long long"
337: ;;
338: $ac_cv_sizeof_intptr_t)
339: ac_cv_int_type_double_ucell="unsigned intptr_t"
340: ;;
341: $ac_cv_sizeof_uint128_t)
342: ac_cv_int_type_double_ucell="uint128_t"
343: ;;
344: esac
345: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
346:
347: if test "$ac_cv_int_type_double_cell" = none || \
348: test "$ac_cv_int_type_double_ucell" = none
349: then
350: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
351: AC_LIBOBJ(dblsub)
352: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
353: else
354: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
355: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
356: fi
357:
358: AC_TYPE_OFF_T
359: AC_CHECK_SIZEOF(off_t)
360: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
361: ac_small_off_t=$?
362: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
363:
364: ENGINE_FLAGS=
365: AC_SUBST(ENGINE_FLAGS)
366:
367: # Try if GCC understands -fno-gcse
368:
369: AC_MSG_CHECKING([if $CC understands -fno-gcse])
370: CFLAGS_1="$CFLAGS"
371: CFLAGS="$CFLAGS -fno-gcse"
372: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
373: CFLAGS="$CFLAGS_1"
374: AC_MSG_RESULT($ac_nogcse)
375:
376: # Try if GCC understands -fno-strict-aliasing
377: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
378: CFLAGS_1="$CFLAGS"
379: CFLAGS="$CFLAGS -fno-strict-aliasing"
380: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
381: CFLAGS="$CFLAGS_1"
382: AC_MSG_RESULT($ac_nostrictaliasing)
383:
384: # Try if GCC understands -fno-crossjumping
385: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
386: CFLAGS_1="$CFLAGS"
387: CFLAGS="$CFLAGS -fno-crossjumping"
388: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
389: CFLAGS="$CFLAGS_1"
390: AC_MSG_RESULT($ac_nocrossjumping)
391:
392: # Try if GCC understands -fno-reorder-blocks
393: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
394: CFLAGS_1="$CFLAGS"
395: CFLAGS="$CFLAGS -fno-reorder-blocks"
396: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
397: CFLAGS="$CFLAGS_1"
398: AC_MSG_RESULT($ac_noreorder_blocks)
399:
400: # Try if GCC understands __attribute__((unused))
401: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
402: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
403: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
404: AC_MSG_RESULT($MAYBE_UNUSED)
405:
406: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
407: AC_SUBST(asm_fs)
408:
409: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
410: AC_SUBST(disasm_fs)
411:
412: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
413:
414: case "$host_os" in
415: *win32|cygwin)
416: DIRSEP="\\\\"
417: PATHSEP=";"
418: #we want the builtins of command.com/cmd.exe and its
419: # handling of .com files.
420: #$COMSPEC contains the name of the Windows shell;
421: # the ./ is there, because the bash does not recognize
422: # absolute DOS filenames
423: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
424: ;;
425: *darwin*)
426: #Darwin uses some funny preprocessor by default; eliminate it:
427: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
428: CFLAGS="$CFLAGS -no-cpp-precomp"
429: DIRSEP="/"
430: PATHSEP=":"
431: DEFAULTSYSTEMPREFIX=""
432: ;;
433: *)
434: DIRSEP="/"
435: PATHSEP=":"
436: DEFAULTSYSTEMPREFIX=""
437: ;;
438: esac
439: AC_SUBST(DIRSEP)
440: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
441: AC_SUBST(PATHSEP)
442: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
443: AC_SUBST(DEFAULTSYSTEMPREFIX)
444: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
445:
446: dnl Now a little support for DOS/DJGCC
447: AC_SUBST(GFORTH_EXE)
448: GFORTH_EXE=""
449: AC_SUBST(GFORTHFAST_EXE)
450: GFORTHFAST_EXE=""
451: AC_SUBST(GFORTHITC_EXE)
452: GFORTHITC_EXE=""
453: AC_SUBST(GFORTHDITC_EXE)
454: GFORTHDITC_EXE=""
455:
456: AC_SUBST(FORTHSIZES)
457:
458: dnl if test "$PEEPHOLE" = "yes"
459: dnl then
460: dnl PEEPHOLEFLAG="true"
461: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
462: dnl else
463: dnl PEEPHOLEFLAG="false"
464: dnl fi
465: PEEPHOLEFLAG="true"
466: AC_SUBST(PEEPHOLEFLAG)
467:
468: dnl copy commands for systems that don't have links
469: AC_SUBST(LINK_KERNL)
470: LINK_KERNL=""
471:
472: #if test $host_os=dos
473: #then
474: # echo Configuring for DOS!!!
475: # MAKE_EXE="coff2exe gforth"
476: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
477: #fi
478:
479: dnl the following macro produces a warning with autoconf-2.1
480: AC_C_BIGENDIAN
481: AC_SUBST(KERNEL)
482: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
483: if test $ac_cv_c_bigendian = yes; then
484: bytesex=b
485: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
486: else
487: bytesex=l
488: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
489: fi
490:
491: #check how to do asm(".skip 16")
492: AC_MSG_CHECKING([if and how we can waste code space])
493: if test -z "$skipcode"; then
494: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
495: do
496: AC_TRY_RUN(
497: [int foo(int,int,int);
498: main()
499: {
500: exit(foo(0,0,0)!=16);
501: }
502: int foo(int x, int y, int z)
503: {
504: static void *labels[]={&&label1, &&label2};
505: if (x) {
506: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
507: label1:
508: asm(".skip 16"); /* or ".space 16" or somesuch */
509: label2: ;
510: }
511: {
512: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
513: return labels[1]-labels[0];
514: }
515: }]
516: ,skipcode=$i; break
517: ,,)
518: done
519: fi
520: AC_MSG_RESULT($skipcode)
521: if test "$skipcode" = no
522: then
523: if test -z $no_dynamic_default; then
524: no_dynamic_default=1
525: AC_MSG_WARN(Disabling default dynamic native code generation)
526: fi
527: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
528: else
529: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
530: fi
531:
532: test "$no_dynamic_default" || no_dynamic_default=0
533: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
534:
535: dnl Checks for programs.
536: AC_PROG_LN_S
537: AC_PROG_INSTALL
538:
539: dnl Checks for library functions
540: dnl This check is just for making later checks link with libm.
541: dnl using sin here is no good idea since it is built-into gcc and typechecked
542: AC_CHECK_LIB(m,asin)
543: AC_CHECK_LIB(dl,dlopen)
544: dnl check for ffcall libraries
545: dnl unfortunately, these four calls are separated out into a library each.
546: AC_CHECK_LIB(avcall,__builtin_avcall)
547: AC_CHECK_LIB(callback,__vacall_r)
548: AC_CHECK_LIB(vacall,vacall)
549: AC_CHECK_LIB(trampoline,alloc_trampoline)
550: FFCALLFLAG="false"
551: OLDCALLFLAG="true"
552: 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])
553: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
554: AC_SUBST(FFCALLFLAG)
555: AC_SUBST(OLDCALLFLAG)
556: if test "$host_os" != "nextstep3"
557: then
558: AC_FUNC_MEMCMP
559: fi
560: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
561: AC_FUNC_FSEEKO
562: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
563: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
564: AC_DECL_SYS_SIGLIST
565: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
566: AC_CHECK_FUNCS(expm1 log1p)
567: AC_REPLACE_FUNCS(rint ecvt)
568: dnl No check for select, because our replacement is no good under
569: dnl anything but DOS
570: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
571: AC_FUNC_FNMATCH
572: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
573: AC_CHECK_FUNCS(mmap sysconf getpagesize)
574: AM_PATH_LISPDIR
575:
576: kernel_fi=kernl${wordsize}${bytesex}.fi
577: AC_SUBST(kernel_fi)
578:
579: #this breaks bindists
580: #dnl replace srource directory by absolute value
581: #if test $srcdir = "."; then srcdir=`pwd`
582: #fi
583:
584: AC_SUBST(machine)
585: AC_CONFIG_FILES([
586: Makefile
587: Makedist
588: gforthmi
589: vmgen
590: machpc.fs
591: engine/Makefile
592: doc/version.texi ])
593: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
594: chmod +x gforthmi
595: chmod +x vmgen
596: test -d kernel||mkdir kernel]],[[]])
597: AC_OUTPUT
598:
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