1: dnl Process this file with autoconf to produce a configure script.
2:
3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 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],[0.6.2-20060527],[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="April 09, 2006"
30: AC_SUBST(UPDATED)
31: AC_CONFIG_HEADERS(engine/config.h)
32:
33: #suppress the "-g -O2" default
34: test "$CFLAGS" || CFLAGS=-O2
35:
36: AC_ARG_ENABLE(force-reg,
37: AC_HELP_STRING([--enable-force-reg],
38: [ Use explicit register declarations if they appear in
39: the machine.h file. This can cause a good speedup,
40: but also incorrect code with some gcc versions on
41: some processors (default disabled).]),
42: ,enable_force_reg=no)
43: test "$enable_force_reg" = "no"||
44: 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)])
45:
46: AC_ARG_ENABLE(force-ll,
47: AC_HELP_STRING([--enable-force-ll],
48: [ Use explicit long long declarations if they appear in
49: the machine.h file. This can cause a good speedup,
50: but also incorrect code with some gcc versions on
51: some processors (default disabled).]),
52: ,enable_force_ll=no)
53: test "$enable_force_ll" = "no"||
54: AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)])
55:
56: AC_ARG_ENABLE(gcc-pr15242-workaround,
57: AC_HELP_STRING([--disable-gcc-pr15242-workaround],[Disables
58: dynamic code generation on some versions of gcc
59: (slowdown~2 on Athlon) and causes slower building
60: of gforth (but gforth speedups) on others.
61: (default enabled)]),
62: ,enable_gcc_pr15242_workaround=yes)
63: test "$enable_gcc_pr15242_workaround" = "no"||
64: AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
65: generation on gccs affected by PR15242])
66:
67: AC_ARG_ENABLE(force-cdiv,
68: AC_HELP_STRING([--enable-force-cdiv],
69: [ Use the native C division - symmetric - instead of
70: floored division (default disabled).]),
71: ,enable_force_cdiv=no)
72: test "$enable_force_cdiv" = "no"||
73: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
74:
75: AC_SUBST(PROFEXES)
76: AC_SUBST(PROFOBJS)
77: AC_ARG_ENABLE(prof,
78: AC_HELP_STRING([--enable-prof],
79: [ Build gforth-prof, which outputs frequently occuring
80: sequences of primitives.]),
81: ,enable_prof=no)
82: if test "$enable_prof" = "no"; then
83: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o"
84: fi
85:
86: AC_ARG_WITH(debug,
87: [ --with-debug specifies option -g to compile with debug info
88: --without-debug omits the -g switch and creates smaller images on
89: machines where "strip" has problems with gcc style
90: debugging informations.],
91: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
92:
93: dnl PEEPHOLE="yes"
94: dnl AC_ARG_WITH(peephole,
95: dnl [ --with-peephole Enable peephole optimization (default)
96: dnl --without-peephole disables peephole optimization. Creates smaller,
97: dnl but slower images.],
98: dnl PEEPHOLE="$withval")
99:
100: #variables mentioned in INSTALL
101: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
102: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
103: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
104: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
105: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
106: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
107: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
108: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
109: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
110: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
111: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
112: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
113: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
114: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
115: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
116:
117: #set up feature test macros, so the tests get them right:
118: # turn on all POSIX, SUSv3, and GNU features if available
119: AC_GNU_SOURCE
120: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
121:
122: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
123: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
124: dnl but not for _XOPEN_SOURCE)
125: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
126: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
127: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
128: # turn on large file support with 64-bit off_t where available
129: AC_SYS_LARGEFILE
130: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
131: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
132:
133: #currently we force direct threading this way. Eventually we should
134: #setup in the arch and engine files right
135:
136: AC_PROG_CC
137:
138: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
139:
140: AC_SUBST(CC)
141: AC_SUBST(DEBUGFLAG)
142:
143: AC_MSG_CHECKING(make type)
144: make_type=`make -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
145:
146: GNUMAKE='#'
147: test "$make_type" = "GNU Make" && GNUMAKE=''
148:
149: AC_MSG_RESULT($make_type)
150:
151: AC_SUBST(GNUMAKE)
152:
153: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
154: OLDLDFLAGS=$LDFLAGS
155: LDFLAGS="$LDFLAGS -export-dynamic"
156: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
157: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
158: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
159: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
160: AC_MSG_RESULT($ac_export_dynamic)
161:
162: #terminology is a bit unusual here: The host is the system on which
163: #gforth will run; the system on which configure will run is the `build'
164: AC_CANONICAL_HOST
165: case "$host_cpu" in
166: arm*)
167: machine=arm
168: CFLAGS="$CFLAGS -fomit-frame-pointer"
169: if test -z $no_dynamic_default; then
170: no_dynamic_default=1
171: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
172: fi
173: ;;
174: hppa*)
175: machine=hppa
176: $srcdir/mkinstalldirs arch/hppa
177: AC_LIBOBJ(../arch/hppa/cache)
178: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
179: LDFLAGS="$LDFLAGS -Xlinker -N"
180: LIBS="$LIBS -L/lib/pa1.1/"
181: ;;
182: sparc*)
183: machine=sparc
184: ;;
185: i386)
186: machine=386
187: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
188: ;;
189: i486)
190: machine=386
191: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
192: ;;
193: i*86)
194: machine=386
195: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
196: CFLAGS_1="$CFLAGS"
197: CFLAGS="$CFLAGS -march=pentium"
198: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
199: ;;
200: x86_64)
201: machine=amd64
202: ;;
203: ia64*)
204: machine=ia64
205: AC_LIBOBJ(../arch/ia64/flush_icache_block)
206: test "$skipcode" || skipcode="nop.i 0"
207: #".skip 16" passes the test below,
208: # but gives an assembler error in engine
209: ;;
210: m68k)
211: machine=m68k
212: CFLAGS="$CFLAGS -fomit-frame-pointer"
213: if test "$host_os" = "nextstep3"
214: then
215: AC_LIBOBJ(termios)
216: fi
217: ;;
218: mips*)
219: machine=mips
220: #dynamic native code has the following problems on MIPS:
221: #
222: #1) J/JAL seems relocatable, but is are only
223: #relocatable within a 256MB-segment. While we try to
224: #get the linker to arrange this, there is no guarantee
225: #that this will succeed (and if the user uses a lot of
226: #memory, it is likely to fail).
227: #
228: #2) The way we generate dynamic native code may
229: #violate MIPS architectural restrictions (in
230: #particular, the delay slots of LW, MFLO, etc.)
231: #
232: #Therefore we disable dynamic native code by default:
233: if test -z $no_dynamic_default; then
234: no_dynamic_default=1
235: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
236: fi
237: ;;
238: alpha*)
239: machine=alpha
240: #full IEEE FP support for more uniformity across platforms:
241: CFLAGS="$CFLAGS -mieee"
242: ;;
243: power*|rs6000)
244: machine=power
245: $srcdir/mkinstalldirs arch/power
246: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
247: #long long is broken on (at least) gcc-2.95.* for PPC
248: test x$ac_cv_sizeof_long_long = x &&
249: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
250: ac_cv_sizeof_long_long=0
251: ;;
252: *)
253: AC_MSG_WARN([Using a generic machine description])
254: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
255: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
256: machine=generic
257: #I-cache flushing would be needed for dynamic code generation
258: if test -z $no_dynamic_default; then
259: no_dynamic_default=1
260: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
261: fi
262: esac
263: AC_SUBST(host)
264:
265: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
266: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
267: [number of registers in the default stack cache state for gforth-fast and gforth-native])
268:
269: if test "${enable_force_ll+set}" = set; then
270: ac_includes_default="$ac_includes_default
271: #include \"arch/generic/128bit.h\""
272: fi
273:
274: dnl the following macro produces a warning with autoconf-2.1
275: AC_CHECK_SIZEOF(char *)
276: case "$ac_cv_sizeof_char_p" in
277: 2)
278: wordsize=16
279: ;;
280: 4)
281: wordsize=32
282: ;;
283: 8)
284: wordsize=64
285: ;;
286: esac
287:
288: AC_CHECK_SIZEOF(char)
289: AC_CHECK_SIZEOF(short)
290: AC_CHECK_SIZEOF(int)
291: AC_CHECK_SIZEOF(long)
292: AC_CHECK_SIZEOF(long long)
293: AC_CHECK_SIZEOF(intptr_t)
294: AC_CHECK_SIZEOF(int128_t)
295: AC_CHECK_SIZEOF(uint128_t)
296:
297: AC_MSG_CHECKING([for a C type for cells])
298: ac_cv_int_type_cell=none
299: case "$ac_cv_sizeof_char_p" in
300: $ac_cv_sizeof_int)
301: ac_cv_int_type_cell=int
302: ;;
303: $ac_cv_sizeof_short)
304: ac_cv_int_type_cell=short
305: ;;
306: $ac_cv_sizeof_char)
307: ac_cv_int_type_cell=char
308: ;;
309: $ac_cv_sizeof_long)
310: ac_cv_int_type_cell=long
311: ;;
312: $ac_cv_sizeof_long_long)
313: ac_cv_int_type_cell="long long"
314: ;;
315: $ac_cv_sizeof_intptr_t)
316: ac_cv_int_type_cell="intptr_t"
317: ;;
318: $ac_cv_sizeof_int128_t)
319: ac_cv_int_type_cell="int128_t"
320: ;;
321: esac
322: AC_MSG_RESULT($ac_cv_int_type_cell)
323: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
324:
325: AC_MSG_CHECKING([for a C type for wydes])
326: ac_cv_wyde_type_cell=none
327: case 2 in
328: $ac_cv_sizeof_int)
329: ac_cv_wyde_type_cell=int
330: ;;
331: $ac_cv_sizeof_short)
332: ac_cv_wyde_type_cell=short
333: ;;
334: $ac_cv_sizeof_char)
335: ac_cv_wyde_type_cell=char
336: ;;
337: $ac_cv_sizeof_long)
338: ac_cv_wyde_type_cell=long
339: ;;
340: $ac_cv_sizeof_long_long)
341: ac_cv_wyde_type_cell="long long"
342: ;;
343: $ac_cv_sizeof_intptr_t)
344: ac_cv_wyde_type_cell="intptr_t"
345: ;;
346: $ac_cv_sizeof_int128_t)
347: ac_cv_wyde_type_cell="int128_t"
348: ;;
349: esac
350: AC_MSG_RESULT($ac_cv_wyde_type_cell)
351: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
352:
353: AC_MSG_CHECKING([for a C type for tetrabytes])
354: ac_cv_tetrabyte_type_cell=none
355: case 4 in
356: $ac_cv_sizeof_int)
357: ac_cv_tetrabyte_type_cell=int
358: ;;
359: $ac_cv_sizeof_short)
360: ac_cv_tetrabyte_type_cell=short
361: ;;
362: $ac_cv_sizeof_char)
363: ac_cv_tetrabyte_type_cell=char
364: ;;
365: $ac_cv_sizeof_long)
366: ac_cv_tetrabyte_type_cell=long
367: ;;
368: $ac_cv_sizeof_long_long)
369: ac_cv_tetrabyte_type_cell="long long"
370: ;;
371: $ac_cv_sizeof_intptr_t)
372: ac_cv_tetrabyte_type_cell="intptr_t"
373: ;;
374: $ac_cv_sizeof_int128_t)
375: ac_cv_tetrabyte_type_cell="int128_t"
376: ;;
377: esac
378: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
379: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
380:
381: AC_MSG_CHECKING([for a C type for double-cells])
382: ac_cv_int_type_double_cell=none
383: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
384: $ac_cv_sizeof_short)
385: ac_cv_int_type_double_cell=short
386: ;;
387: $ac_cv_sizeof_int)
388: ac_cv_int_type_double_cell=int
389: ;;
390: $ac_cv_sizeof_long)
391: ac_cv_int_type_double_cell=long
392: ;;
393: $ac_cv_sizeof_long_long)
394: ac_cv_int_type_double_cell="long long"
395: ;;
396: $ac_cv_sizeof_intptr_t)
397: ac_cv_int_type_double_cell="intptr_t"
398: ;;
399: $ac_cv_sizeof_int128_t)
400: ac_cv_int_type_double_cell="int128_t"
401: ;;
402: esac
403: AC_MSG_RESULT($ac_cv_int_type_double_cell)
404:
405: AC_MSG_CHECKING([for a C type for unsigned double-cells])
406: ac_cv_int_type_double_ucell=none
407: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
408: $ac_cv_sizeof_short)
409: ac_cv_int_type_double_ucell="unsigned short"
410: ;;
411: $ac_cv_sizeof_int)
412: ac_cv_int_type_double_ucell="unsigned int"
413: ;;
414: $ac_cv_sizeof_long)
415: ac_cv_int_type_double_ucell="unsigned long"
416: ;;
417: $ac_cv_sizeof_long_long)
418: ac_cv_int_type_double_ucell="unsigned long long"
419: ;;
420: $ac_cv_sizeof_intptr_t)
421: ac_cv_int_type_double_ucell="unsigned intptr_t"
422: ;;
423: $ac_cv_sizeof_uint128_t)
424: ac_cv_int_type_double_ucell="uint128_t"
425: ;;
426: esac
427: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
428:
429: if test "$ac_cv_int_type_double_cell" = none || \
430: test "$ac_cv_int_type_double_ucell" = none
431: then
432: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
433: AC_LIBOBJ(dblsub)
434: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
435: else
436: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
437: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
438: fi
439:
440: AC_TYPE_OFF_T
441: AC_CHECK_SIZEOF(off_t)
442: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
443: ac_small_off_t=$?
444: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
445:
446: ENGINE_FLAGS=
447: AC_SUBST(ENGINE_FLAGS)
448:
449: # Try if GCC understands -fno-gcse
450:
451: AC_MSG_CHECKING([if $CC understands -fno-gcse])
452: CFLAGS_1="$CFLAGS"
453: CFLAGS="$CFLAGS -fno-gcse"
454: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
455: CFLAGS="$CFLAGS_1"
456: AC_MSG_RESULT($ac_nogcse)
457:
458: # Try if GCC understands -fno-strict-aliasing
459: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
460: CFLAGS_1="$CFLAGS"
461: CFLAGS="$CFLAGS -fno-strict-aliasing"
462: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
463: CFLAGS="$CFLAGS_1"
464: AC_MSG_RESULT($ac_nostrictaliasing)
465:
466: # Try if GCC understands -fno-crossjumping
467: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
468: CFLAGS_1="$CFLAGS"
469: CFLAGS="$CFLAGS -fno-crossjumping"
470: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
471: CFLAGS="$CFLAGS_1"
472: AC_MSG_RESULT($ac_nocrossjumping)
473:
474: # Try if GCC understands -fno-reorder-blocks
475: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
476: CFLAGS_1="$CFLAGS"
477: CFLAGS="$CFLAGS -fno-reorder-blocks"
478: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
479: CFLAGS="$CFLAGS_1"
480: AC_MSG_RESULT($ac_noreorder_blocks)
481:
482: # Try if GCC understands __attribute__((unused))
483: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
484: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
485: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
486: AC_MSG_RESULT($MAYBE_UNUSED)
487:
488: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
489: AC_SUBST(asm_fs)
490:
491: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
492: AC_SUBST(disasm_fs)
493:
494: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
495:
496: case "$host_os" in
497: *win32*)
498: # !!!FIXME!!! problems with cygwin and ';' as path separator
499: DIRSEP="\\\\"
500: PATHSEP=";"
501: #we want the builtins of command.com/cmd.exe and its
502: # handling of .com files.
503: #$COMSPEC contains the name of the Windows shell;
504: # the ./ is there, because the bash does not recognize
505: # absolute DOS filenames
506: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
507: ;;
508: *darwin*)
509: #Darwin uses some funny preprocessor by default; eliminate it:
510: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
511: CFLAGS="$CFLAGS -no-cpp-precomp"
512: DIRSEP="/"
513: PATHSEP=":"
514: DEFAULTSYSTEMPREFIX=""
515: ;;
516: *)
517: DIRSEP="/"
518: PATHSEP=":"
519: DEFAULTSYSTEMPREFIX=""
520: ;;
521: esac
522: AC_SUBST(DIRSEP)
523: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
524: AC_SUBST(PATHSEP)
525: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
526: AC_SUBST(DEFAULTSYSTEMPREFIX)
527: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
528:
529: dnl Now a little support for DOS/DJGCC
530: AC_SUBST(GFORTH_EXE)
531: GFORTH_EXE=""
532: AC_SUBST(GFORTHFAST_EXE)
533: GFORTHFAST_EXE=""
534: AC_SUBST(GFORTHITC_EXE)
535: GFORTHITC_EXE=""
536: AC_SUBST(GFORTHDITC_EXE)
537: GFORTHDITC_EXE=""
538:
539: AC_SUBST(FORTHSIZES)
540:
541: dnl if test "$PEEPHOLE" = "yes"
542: dnl then
543: dnl PEEPHOLEFLAG="true"
544: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
545: dnl else
546: dnl PEEPHOLEFLAG="false"
547: dnl fi
548: PEEPHOLEFLAG="true"
549: AC_SUBST(PEEPHOLEFLAG)
550:
551: dnl copy commands for systems that don't have links
552: AC_SUBST(LINK_KERNL)
553: LINK_KERNL=""
554:
555: #if test $host_os=dos
556: #then
557: # echo Configuring for DOS!!!
558: # MAKE_EXE="coff2exe gforth"
559: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
560: #fi
561:
562: dnl the following macro produces a warning with autoconf-2.1
563: AC_C_BIGENDIAN
564: AC_SUBST(KERNEL)
565: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
566: if test $ac_cv_c_bigendian = yes; then
567: bytesex=b
568: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
569: else
570: bytesex=l
571: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
572: fi
573:
574: #check how to do asm(".skip 16")
575: echo "CFLAGS=$CFLAGS"
576: echo "ac_link=$ac_link"
577: AC_MSG_CHECKING([if and how we can waste code space])
578: if test -z "$skipcode"; then
579: skipcode=no
580: CFLAGS_1="$CFLAGS"
581: CFLAGS="$CFLAGS $ENGINE_FLAGS"
582: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
583: do
584: AC_TRY_RUN(
585: [int foo(int,int,int);
586: main()
587: {
588: exit(foo(0,0,0)!=16);
589: }
590: int foo(int x, int y, int z)
591: {
592: static void *labels[]={&&label1, &&label2};
593: if (x) {
594: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
595: label1:
596: asm("$i"); /* or ".space 16" or somesuch */
597: label2: ;
598: }
599: {
600: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
601: return labels[1]-labels[0];
602: }
603: }]
604: ,skipcode=$i; break
605: ,,)
606: done
607: CFLAGS=$CFLAGS_1
608: fi
609: AC_MSG_RESULT($skipcode)
610: if test "$skipcode" = no
611: then
612: if test -z $no_dynamic_default; then
613: no_dynamic_default=1
614: AC_MSG_WARN(Disabling default dynamic native code generation)
615: fi
616: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
617: else
618: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
619: fi
620:
621: test "$no_dynamic_default" || no_dynamic_default=0
622: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
623:
624: dnl Checks for programs.
625: AC_PROG_LN_S
626: AC_PROG_INSTALL
627: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
628:
629: dnl Checks for library functions
630: dnl This check is just for making later checks link with libm.
631: dnl using sin here is no good idea since it is built-into gcc and typechecked
632: AC_CHECK_LIB(m,asin)
633: AC_CHECK_LIB(dl,dlopen)
634: dnl check for libffi 2.x
635: AC_CHECK_LIB(ffi,ffi_call)
636: if test $ac_cv_lib_ffi_ffi_call = yes
637: then
638: LIBFFIFLAG="true"
639: FFCALLFLAG="false"
640: OLDCALLFLAG="false"
641: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
642: else
643: dnl check for ffcall libraries
644: dnl unfortunately, these four calls are separated out into a library each.
645: AC_CHECK_LIB(avcall,__builtin_avcall)
646: AC_CHECK_LIB(callback,__vacall_r)
647: AC_CHECK_LIB(vacall,vacall)
648: AC_CHECK_LIB(trampoline,alloc_trampoline)
649: LIBFFIFLAG="false"
650: FFCALLFLAG="false"
651: OLDCALLFLAG="true"
652: 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])
653: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
654: fi
655: AC_SUBST(LIBFFIFLAG)
656: AC_SUBST(FFCALLFLAG)
657: AC_SUBST(OLDCALLFLAG)
658: if test "$host_os" != "nextstep3"
659: then
660: AC_FUNC_MEMCMP
661: fi
662: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
663: AC_FUNC_FSEEKO
664: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
665: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
666: AC_DECL_SYS_SIGLIST
667: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
668: AC_CHECK_FUNCS(expm1 log1p)
669: AC_REPLACE_FUNCS(rint ecvt)
670: dnl No check for select, because our replacement is no good under
671: dnl anything but DOS
672: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
673: AC_FUNC_FNMATCH
674: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
675: AC_CHECK_FUNCS(mmap sysconf getpagesize)
676: AM_PATH_LISPDIR
677:
678: kernel_fi=kernl${wordsize}${bytesex}.fi
679: AC_SUBST(kernel_fi)
680:
681: #this breaks bindists
682: #dnl replace srource directory by absolute value
683: #if test $srcdir = "."; then srcdir=`pwd`
684: #fi
685:
686: AC_SUBST(machine)
687: AC_CONFIG_FILES([
688: Makefile
689: Makedist
690: gforthmi
691: vmgen
692: machpc.fs
693: envos.fs
694: engine/Makefile
695: doc/version.texi
696: build-ec ])
697: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
698: chmod +x gforthmi
699: chmod +x vmgen
700: chmod +x build-ec
701: test -d kernel||mkdir kernel]],[[]])
702: AC_OUTPUT
703:
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