1: dnl Process this file with autoconf to produce a configure script.
2:
3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 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 3
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, see http://www.gnu.org/licenses/.
19:
20:
21: dnl We use some automake macros here,
22: dnl but don't use automake for creating Makefile.in
23: AC_INIT([gforth],[0.7.9-20101227],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
24: AC_PREREQ(2.54)
25: #snapshots have numbers major.minor.release-YYYYMMDD
26: #note that lexicographic ordering must be heeded.
27: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
28: UPDATED="December 27, 2010"
29: AC_SUBST(UPDATED)
30: AC_CONFIG_HEADERS(engine/config.h)
31:
32: #remnants from having ltdl as convenience library
33: LTDLDEPS=""
34: LTDLINCL=""
35: LIBLTDL=""
36: LTDL_LDLIBS=""
37: AC_SUBST(LTDLDEPS)
38: AC_SUBST(LTDLINCL)
39: AC_SUBST(LIBLTDL)
40: AC_SUBST(LTDL_LDLIBS)
41:
42: #suppress the "-g -O2" default
43: test "$CFLAGS" || CFLAGS=-O2
44:
45: AC_ARG_ENABLE(force-cdiv,
46: AC_HELP_STRING([--enable-force-cdiv],
47: [ Use the native C division - symmetric - instead of
48: floored division (default disabled).]),
49: ,enable_force_cdiv=no)
50: test "$enable_force_cdiv" = "no"||
51: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
52:
53: AC_SUBST(PROFEXES)
54: AC_SUBST(PROFOBJS)
55: AC_ARG_ENABLE(prof,
56: AC_HELP_STRING([--enable-prof],
57: [ Build gforth-prof, which outputs frequently occuring
58: sequences of primitives.]),
59: ,enable_prof=no)
60: if test "$enable_prof" != "no"; then
61: PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o'
62: fi
63:
64: AC_ARG_WITH(debug,
65: [ --with-debug specifies option -g to compile with debug info
66: --without-debug omits the -g switch and creates smaller images on
67: machines where "strip" has problems with gcc style
68: debugging informations.],
69: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
70:
71: GCC_LD="\$(GCC)"
72: EC_MODE="false"
73: NO_EC=""
74: EC=""
75: engine2='engine2$(OPT).o'
76: engine_fast2='engine-fast2$(OPT).o'
77: no_dynamic=""
78: image_i=""
79: signals_o="io.o signals.o"
80:
81: AC_CANONICAL_HOST
82: AC_ARG_WITH(ec,
83: AC_HELP_STRING([--with-ec=<arch>],
84: [ Build gforth for systems without OS.]),
85: [if test "$withval" = "no"; then
86: echo "defining hosted system"
87: else
88: echo "defining standalone system (${withval})"
89: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
90: EC_MODE="true"
91: EC="-ec"
92: NO_EC="#"
93: engine2=""
94: engine_fast2=""
95: no_dynamic="-DNO_DYNAMIC"
96: image_i="image.i"
97: if test "$withval" != "yes"; then
98: signals_o="io-${withval}.o"
99: else
100: signals_o="io.o"
101: fi
102: if test -f "arch/$host_cpu/${withval}/config.sh"; then
103: source "arch/$host_cpu/${withval}/config.sh"
104: fi
105: GCC_PATH=$(which $CC)
106: LIB_PATH=${GCC_PATH%/*/*}
107: GCC_LD="\$(LD)"
108: platform=${withval}
109: fi])
110:
111: #variables mentioned in INSTALL
112: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
113: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
114: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
115: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
116: AC_ARG_VAR(GCC_PR15242_WORKAROUND, [Force the enabling (1) or disabling (0) of a workaround for a gcc-3.x performance bug (default unset: use workaround for gcc-3.x)])
117: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
118:
119: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
120: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
121: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
122: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
123: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
124: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
125: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
126: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
127: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
128: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
129: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
130: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
131: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
132: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
133: AC_ARG_VAR(asmcomment, [assembler comment start string])
134: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
135: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
136:
137: #set up feature test macros, so the tests get them right:
138: # turn on all POSIX, SUSv3, and GNU features if available
139: AC_GNU_SOURCE
140: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
141:
142: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
143: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
144: dnl but not for _XOPEN_SOURCE)
145: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
146: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
147: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
148: # turn on large file support with 64-bit off_t where available
149: AC_SYS_LARGEFILE
150: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
151: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
152:
153: #currently we force direct threading this way. Eventually we should
154: #setup in the arch and engine files right
155:
156: AC_PROG_CC
157:
158: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
159:
160: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
161: test x$condbranch_opt = x &&
162: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
163: condbranch_opt=0
164: else
165: condbranch_opt=1
166: fi
167: AC_MSG_RESULT($condbranch_opt)
168: AC_SUBST(condbranch_opt)
169:
170: AC_SUBST(CC)
171: AC_SUBST(GCC_LD)
172: AC_SUBST(DEBUGFLAG)
173: AC_SUBST(EC)
174: AC_SUBST(NO_EC)
175: AC_SUBST(EC_MODE)
176: AC_SUBST(engine2)
177: AC_SUBST(engine_fast2)
178: AC_SUBST(no_dynamic)
179: AC_SUBST(image_i)
180: AC_SUBST(signals_o)
181:
182: #this is used to disable some (not generally essential) part of the
183: #Makefile that some makes don't grok. It would be better to test for
184: #this specific Makefile feature than the make version.
185: AC_MSG_CHECKING(make type)
186: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
187: GNUMAKE='#'
188: test "$make_type" = "GNU Make" && GNUMAKE=''
189: AC_MSG_RESULT($make_type)
190: AC_SUBST(GNUMAKE)
191:
192: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
193: OLDLDFLAGS=$LDFLAGS
194: LDFLAGS="$LDFLAGS -export-dynamic"
195: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
196: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
197: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
198: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
199: AC_MSG_RESULT($ac_export_dynamic)
200:
201: #terminology is a bit unusual here: The host is the system on which
202: #gforth will run; the system on which configure will run is the `build'
203: case "$host_cpu" in
204: arm*)
205: machine=arm
206: CFLAGS="$CFLAGS -fomit-frame-pointer"
207: if test x$platform = xnxt; then
208: CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
209: fi
210: if test -z $arm_cacheflush; then
211: case "$host_os" in
212: *linux*)
213: AC_LIBOBJ(../arch/arm/cacheflush-linux)
214: ;;
215: *)
216: no_dynamic_default=1
217: AC_LIBOBJ(../arch/arm/cacheflush0)
218: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
219: ;;
220: esac
221: else
222: AC_LIBOBJ(../$arm_cacheflush)
223: test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
224: fi
225: #longer skipcodes lead to problems on ARM, and it uses
226: #only 4-byte alignment anyway
227: test "$skipcode" || skipcode="nop"
228: ;;
229: hppa*)
230: machine=hppa
231: AC_LIBOBJ(../arch/hppa/cache)
232: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
233: LDFLAGS="$LDFLAGS -Xlinker -N"
234: LIBS="$LIBS -L/lib/pa1.1/"
235: ;;
236: sparc*)
237: machine=sparc
238: ;;
239: i386)
240: machine=386
241: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
242: ;;
243: i486)
244: machine=386
245: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
246: CFLAGS_1="$CFLAGS"
247: CFLAGS="$CFLAGS -march=i486"
248: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
249: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
250: ;;
251: i*86)
252: machine=386
253: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
254: CFLAGS_1="$CFLAGS"
255: CFLAGS="$CFLAGS -march=pentium -mtune=generic"
256: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
257: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
258: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
259: ;;
260: x86_64)
261: case $CC
262: in
263: *-m32*)
264: machine=386
265: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
266: CFLAGS_1="$CFLAGS"
267: CFLAGS="$CFLAGS -march=athlon64"
268: ;;
269: *)
270: machine=amd64
271: ;;
272: esac
273: ;;
274: ia64*)
275: machine=ia64
276: AC_LIBOBJ(../arch/ia64/flush_icache_block)
277: test "$skipcode" || skipcode="nop.i 0"
278: #".skip 16" passes the test below,
279: # but gives an assembler error in engine
280: ;;
281: m68k)
282: machine=m68k
283: CFLAGS="$CFLAGS -fomit-frame-pointer"
284: if test "$host_os" = "nextstep3"
285: then
286: AC_LIBOBJ(termios)
287: fi
288: ;;
289: mips*)
290: machine=mips
291: AC_LIBOBJ(../arch/mips/check_prim)
292: #dynamic native code has the following problems on MIPS:
293: #
294: #1) J/JAL seems relocatable, but is are only
295: #relocatable within a 256MB-segment. While we try to
296: #get the linker to arrange this, there is no guarantee
297: #that this will succeed (and if the user uses a lot of
298: #memory, it is likely to fail).
299: #
300: #2) The way we generate dynamic native code may
301: #violate MIPS architectural restrictions (in
302: #particular, the delay slots of LW, MFLO, etc.)
303: #
304: #Therefore we disable dynamic native code by default:
305: if test -z "$no_dynamic_default"; then
306: no_dynamic_default=1
307: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
308: fi
309: ;;
310: alpha*)
311: machine=alpha
312: #full IEEE FP support for more uniformity across platforms:
313: CFLAGS="$CFLAGS -mieee"
314: ;;
315: power*|rs6000)
316: machine=power
317: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
318: #long long is broken on (at least) gcc-2.95.* for PPC
319: test x$ac_cv_sizeof_long_long = x &&
320: ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
321: ac_cv_sizeof_long_long=0
322: #The only architecture with enough callee-saved registers
323: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
324: #or use 2, hardly slower at run-time and starts up faster
325:
326: #the skipcode that is normally selected below does not
327: #work with gcc-3.[34]
328: test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
329: ;;
330: *)
331: AC_MSG_WARN([Using a generic machine description])
332: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
333: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
334: machine=generic
335: #I-cache flushing would be needed for dynamic code generation
336: if test -z $no_dynamic_default; then
337: no_dynamic_default=1
338: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
339: fi
340: esac
341: AC_SUBST(host)
342:
343: MAKEINC=""
344: GFORTH_EXE="true"
345:
346: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
347: if test x$EC_MODE = xtrue
348: then
349: echo "Check for arch/$machine/$platform/gforth.ld"
350: if test -f arch/$machine/$platform/gforth.ld
351: then
352: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
353: if test x$platform = xnxt; then
354: LIBS="$LIB_PATH/lib/gcc/arm-elf/$($CC --version | grep GCC | cut -d' ' -f3)/interwork/libgcc.a $LIB_PATH/arm-elf/lib/interwork/libc.a $LIBS"
355: fi
356: fi
357: if test -f arch/$machine/$platform/make.inc
358: then
359: MAKEINC="include ../arch/$machine/$platform/make.inc"
360: GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
361: fi
362: fi
363: AC_SUBST(MAKEINC)
364:
365: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
366:
367: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
368: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
369: [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
370: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
371: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
372: [number of registers in the default stack cache state for gforth-fast and gforth-native])
373:
374: test x$GCC_PR15242_WORKAROUND = x ||
375: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
376: [force (1) or forbid (0) use of a workaround for a gcc performance bug])
377:
378: dnl the following macro produces a warning with autoconf-2.1
379: AC_CHECK_SIZEOF(char *)
380: case "$ac_cv_sizeof_char_p" in
381: 2)
382: wordsize=16
383: ;;
384: 4)
385: wordsize=32
386: ;;
387: 8)
388: wordsize=64
389: ;;
390: esac
391:
392: AC_CHECK_SIZEOF(void *)
393: case "$ac_cv_sizeof_void_p" in
394: 2)
395: vwordsize=16
396: ;;
397: 4)
398: vwordsize=32
399: ;;
400: 8)
401: vwordsize=64
402: ;;
403: esac
404:
405: AC_CHECK_SIZEOF(char)
406: AC_CHECK_SIZEOF(short)
407: AC_CHECK_SIZEOF(int)
408: AC_CHECK_SIZEOF(long)
409: AC_CHECK_SIZEOF(long long)
410: AC_CHECK_SIZEOF(intptr_t)
411: AC_CHECK_SIZEOF(int128_t)
412: AC_CHECK_SIZEOF(uint128_t)
413:
414: AC_MSG_CHECKING([for a C type for cells])
415: ac_cv_int_type_cell=none
416: case "$ac_cv_sizeof_char_p" in
417: $ac_cv_sizeof_int)
418: ac_cv_int_type_cell=int
419: ;;
420: $ac_cv_sizeof_short)
421: ac_cv_int_type_cell=short
422: ;;
423: $ac_cv_sizeof_char)
424: ac_cv_int_type_cell=char
425: ;;
426: $ac_cv_sizeof_long)
427: ac_cv_int_type_cell=long
428: ;;
429: $ac_cv_sizeof_long_long)
430: ac_cv_int_type_cell="long long"
431: ;;
432: $ac_cv_sizeof_intptr_t)
433: ac_cv_int_type_cell="intptr_t"
434: ;;
435: esac
436: AC_MSG_RESULT($ac_cv_int_type_cell)
437: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
438:
439: AC_MSG_CHECKING([for a C type for wydes])
440: ac_cv_wyde_type_cell=none
441: case 2 in
442: $ac_cv_sizeof_int)
443: ac_cv_wyde_type_cell=int
444: ;;
445: $ac_cv_sizeof_short)
446: ac_cv_wyde_type_cell=short
447: ;;
448: $ac_cv_sizeof_char)
449: ac_cv_wyde_type_cell=char
450: ;;
451: $ac_cv_sizeof_long)
452: ac_cv_wyde_type_cell=long
453: ;;
454: $ac_cv_sizeof_long_long)
455: ac_cv_wyde_type_cell="long long"
456: ;;
457: $ac_cv_sizeof_intptr_t)
458: ac_cv_wyde_type_cell="intptr_t"
459: ;;
460: esac
461: AC_MSG_RESULT($ac_cv_wyde_type_cell)
462: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
463:
464: AC_MSG_CHECKING([for a C type for tetrabytes])
465: ac_cv_tetrabyte_type_cell=none
466: case 4 in
467: $ac_cv_sizeof_int)
468: ac_cv_tetrabyte_type_cell=int
469: ;;
470: $ac_cv_sizeof_short)
471: ac_cv_tetrabyte_type_cell=short
472: ;;
473: $ac_cv_sizeof_char)
474: ac_cv_tetrabyte_type_cell=char
475: ;;
476: $ac_cv_sizeof_long)
477: ac_cv_tetrabyte_type_cell=long
478: ;;
479: $ac_cv_sizeof_long_long)
480: ac_cv_tetrabyte_type_cell="long long"
481: ;;
482: $ac_cv_sizeof_intptr_t)
483: ac_cv_tetrabyte_type_cell="intptr_t"
484: ;;
485: esac
486: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
487: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
488:
489: AC_MSG_CHECKING([for a C type for octabytes])
490: ac_cv_octabyte_type_cell=none
491: case 8 in
492: $ac_cv_sizeof_int)
493: ac_cv_octabyte_type_cell=int
494: ;;
495: $ac_cv_sizeof_short)
496: ac_cv_octabyte_type_cell=short
497: ;;
498: $ac_cv_sizeof_char)
499: ac_cv_octabyte_type_cell=char
500: ;;
501: $ac_cv_sizeof_long)
502: ac_cv_octabyte_type_cell=long
503: ;;
504: $ac_cv_sizeof_long_long)
505: ac_cv_octabyte_type_cell="long long"
506: ;;
507: $ac_cv_sizeof_intptr_t)
508: ac_cv_octabyte_type_cell="intptr_t"
509: ;;
510: esac
511: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
512: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
513:
514: AC_MSG_CHECKING([for a C type for double-cells])
515: ac_cv_int_type_double_cell=none
516: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
517: $ac_cv_sizeof_short)
518: ac_cv_int_type_double_cell=short
519: ;;
520: $ac_cv_sizeof_int)
521: ac_cv_int_type_double_cell=int
522: ;;
523: $ac_cv_sizeof_long)
524: ac_cv_int_type_double_cell=long
525: ;;
526: $ac_cv_sizeof_long_long)
527: ac_cv_int_type_double_cell="long long"
528: ;;
529: $ac_cv_sizeof_intptr_t)
530: ac_cv_int_type_double_cell="intptr_t"
531: ;;
532: $ac_cv_sizeof_int128_t)
533: ac_cv_int_type_double_cell="int128_t"
534: ;;
535: esac
536: AC_MSG_RESULT($ac_cv_int_type_double_cell)
537:
538: AC_MSG_CHECKING([for a C type for unsigned double-cells])
539: ac_cv_int_type_double_ucell=none
540: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
541: $ac_cv_sizeof_short)
542: ac_cv_int_type_double_ucell="unsigned short"
543: ;;
544: $ac_cv_sizeof_int)
545: ac_cv_int_type_double_ucell="unsigned int"
546: ;;
547: $ac_cv_sizeof_long)
548: ac_cv_int_type_double_ucell="unsigned long"
549: ;;
550: $ac_cv_sizeof_long_long)
551: ac_cv_int_type_double_ucell="unsigned long long"
552: ;;
553: $ac_cv_sizeof_intptr_t)
554: ac_cv_int_type_double_ucell="unsigned intptr_t"
555: ;;
556: $ac_cv_sizeof_uint128_t)
557: ac_cv_int_type_double_ucell="uint128_t"
558: ;;
559: esac
560: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
561:
562: if test "$ac_cv_int_type_double_cell" != none && \
563: test "$ac_cv_int_type_double_ucell" != none
564: then
565: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
566: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
567: OPTS=-ll
568: else
569: if test "$ac_cv_sizeof_char_p" = 8; then
570: OPTS="-ll -noll"
571: else
572: OPTS=-noll
573: fi
574: fi
575:
576: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
577: OPTS2=''
578: for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
579: OPTS="$OPTS2 $OPTS"
580: else
581: AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
582: fi
583: AC_SUBST(OPTS)
584:
585: AC_TYPE_OFF_T
586: AC_CHECK_SIZEOF(off_t)
587: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
588: ac_small_off_t=$?
589: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
590:
591: ENGINE_FLAGS=
592: AC_SUBST(ENGINE_FLAGS)
593:
594: # Try if GCC understands -fno-gcse
595:
596: AC_MSG_CHECKING([if $CC understands -fno-gcse])
597: CFLAGS_1="$CFLAGS"
598: CFLAGS="$CFLAGS -fno-gcse"
599: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
600: CFLAGS="$CFLAGS_1"
601: AC_MSG_RESULT($ac_nogcse)
602:
603: # Try if GCC understands -fno-strict-aliasing
604: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
605: CFLAGS_1="$CFLAGS"
606: CFLAGS="$CFLAGS -fno-strict-aliasing"
607: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
608: CFLAGS="$CFLAGS_1"
609: AC_MSG_RESULT($ac_nostrictaliasing)
610:
611: # Try if GCC understands -fno-crossjumping
612: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
613: CFLAGS_1="$CFLAGS"
614: CFLAGS="$CFLAGS -fno-crossjumping"
615: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
616: CFLAGS="$CFLAGS_1"
617: AC_MSG_RESULT($ac_nocrossjumping)
618:
619: # Try if GCC understands -fno-reorder-blocks
620: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
621: CFLAGS_1="$CFLAGS"
622: CFLAGS="$CFLAGS -fno-reorder-blocks"
623: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
624: CFLAGS="$CFLAGS_1"
625: AC_MSG_RESULT($ac_noreorder_blocks)
626:
627: # Try if GCC understands -falign-labels=1
628: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
629: CFLAGS_1="$CFLAGS"
630: CFLAGS="$CFLAGS -falign-labels=1"
631: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
632: CFLAGS="$CFLAGS_1"
633: AC_MSG_RESULT($ac_align_labels)
634:
635: # Try if GCC understands -falign-loops=1
636: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
637: CFLAGS_1="$CFLAGS"
638: CFLAGS="$CFLAGS -falign-loops=1"
639: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
640: CFLAGS="$CFLAGS_1"
641: AC_MSG_RESULT($ac_align_loops)
642:
643: # Try if GCC understands -falign-jumps=1
644: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
645: CFLAGS_1="$CFLAGS"
646: CFLAGS="$CFLAGS -falign-jumps=1"
647: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
648: CFLAGS="$CFLAGS_1"
649: AC_MSG_RESULT($ac_align_jumps)
650:
651: if test -z "$LIBTOOL_CC"
652: then
653: LIBTOOL_CC="$CC"
654: # Try if GCC understands -Wimplicit-function-declaration
655: AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
656: CFLAGS_1="$CFLAGS"
657: CFLAGS="$CFLAGS -Wimplicit-function-declaration"
658: AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
659: CFLAGS="$CFLAGS_1"
660: AC_MSG_RESULT($ac_align_jumps)
661: fi
662: AC_SUBST(LIBTOOL_CC)
663:
664:
665:
666: # Try if GCC understands __attribute__((unused))
667: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
668: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
669: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
670: AC_MSG_RESULT($MAYBE_UNUSED)
671:
672: #try if m4 understands -s
673: AC_MSG_CHECKING([how to invoke m4])
674: if m4 -s /dev/null >/dev/null 2>&1; then
675: M4="m4 -s"
676: else
677: M4=m4
678: fi
679: AC_SUBST(M4)
680: AC_MSG_RESULT($M4)
681:
682: # Find installed Gforth
683: AC_MSG_CHECKING([for gforth])
684: GFORTH="`cd / && which gforth 2>/dev/null`"
685: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
686: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null && test "$srcdir" = ".") || GFORTH=""
687: if test -z "$GFORTH"; then
688: PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
689: kernel_anti_dependence=''
690: else
691: PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
692: kernel_anti_dependence='$(kernel_fi)'
693: fi
694: AC_SUBST(PREFORTH)
695: AC_SUBST(kernel_anti_dependence)
696: AC_MSG_RESULT($PREFORTH)
697:
698: #echo "machine='$machine'"
699:
700: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
701: if test x$EC_MODE = xfalse
702: then
703: AS_IF([test -f $srcdir/arch/$machine/asm.fs],
704: [asm_fs=arch/$machine/asm.fs])
705: fi
706: AC_SUBST(asm_fs)
707:
708: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
709: if test x$EC_MODE = xfalse
710: then
711: AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
712: [disasm_fs=arch/$machine/disasm.fs])
713: fi
714: AC_SUBST(disasm_fs)
715:
716: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
717:
718: case "$host_os" in
719: *win32*)
720: # !!!FIXME!!! problems with cygwin and ';' as path separator
721: DIRSEP="\\\\"
722: PATHSEP=";"
723: #we want the builtins of command.com/cmd.exe and its
724: # handling of .com files.
725: #$COMSPEC contains the name of the Windows shell;
726: # the ./ is there, because the bash does not recognize
727: # absolute DOS filenames
728: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
729: ;;
730: *darwin*)
731: #Darwin uses some funny preprocessor by default; eliminate it:
732: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
733: CFLAGS="$CFLAGS -no-cpp-precomp"
734: DIRSEP="/"
735: PATHSEP=":"
736: DEFAULTSYSTEMPREFIX=""
737: #the following magic value was suggested by
738: #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
739: AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
740: ;;
741: *linux*)
742: DIRSEP="/"
743: PATHSEP=":"
744: DEFAULTSYSTEMPREFIX=""
745: if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
746: LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
747: fi
748: ;;
749: *)
750: DIRSEP="/"
751: PATHSEP=":"
752: DEFAULTSYSTEMPREFIX=""
753: ;;
754: esac
755: AC_SUBST(DIRSEP)
756: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
757: AC_SUBST(PATHSEP)
758: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
759: AC_SUBST(DEFAULTSYSTEMPREFIX)
760: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
761: if test -n "$LTDL_LIBRARY_PATH"; then
762: AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
763: fi
764:
765: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
766: #This magic incantation seems to be completely undocumented.
767: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
768:
769: dnl Now a little support for DOS/DJGCC
770: GFORTHFAST_EXE="$GFORTH_EXE"
771: GFORTHITC_EXE="$GFORTH_EXE"
772: GFORTHDITC_EXE="$GFORTH_EXE"
773: AC_SUBST(GFORTH_EXE)
774: AC_SUBST(GFORTHFAST_EXE)
775: AC_SUBST(GFORTHITC_EXE)
776: AC_SUBST(GFORTHDITC_EXE)
777:
778: AC_SUBST(FORTHSIZES)
779:
780: dnl if test "$PEEPHOLE" = "yes"
781: dnl then
782: dnl PEEPHOLEFLAG="true"
783: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
784: dnl else
785: dnl PEEPHOLEFLAG="false"
786: dnl fi
787: PEEPHOLEFLAG="true"
788: AC_SUBST(PEEPHOLEFLAG)
789:
790: dnl copy commands for systems that don't have links
791: AC_SUBST(LINK_KERNL)
792: LINK_KERNL=""
793:
794: #if test $host_os=dos
795: #then
796: # echo Configuring for DOS!!!
797: # MAKE_EXE="coff2exe gforth"
798: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
799: #fi
800:
801: dnl the following macro produces a warning with autoconf-2.1
802: AC_C_BIGENDIAN
803: AC_SUBST(KERNEL)
804: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
805: if test $ac_cv_c_bigendian != no; then
806: bytesex=b
807: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
808: else
809: bytesex=l
810: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
811: fi
812:
813: #check how to do asm(".skip 16")
814: #echo "CFLAGS=$CFLAGS"
815: #echo "ac_link=$ac_link"
816: AC_MSG_CHECKING([if and how we can waste code space])
817: if test -z "$skipcode" && test x$cross_compiling = xyes; then
818: # we cannot perform the AC_TRY_RUN check when cross-compiling.
819: skipcode=no
820: AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
821: elif test -z "$skipcode"; then
822: skipcode=no
823: CFLAGS_1="$CFLAGS"
824: CFLAGS="$CFLAGS $ENGINE_FLAGS"
825: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
826: do
827: AC_TRY_RUN(
828: [int foo(int,int,int);
829: main()
830: {
831: exit(foo(0,0,0)!=16);
832: }
833: int foo(int x, int y, int z)
834: {
835: static void *labels[]={&&label1, &&label2};
836: if (x) {
837: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
838: label1:
839: asm("$i"); /* or ".space 16" or somesuch */
840: label2: ;
841: }
842: {
843: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
844: return labels[1]-labels[0];
845: }
846: }]
847: ,skipcode=$i; break
848: ,,)
849: done
850: CFLAGS=$CFLAGS_1
851: fi
852: AC_MSG_RESULT($skipcode)
853: if test "$skipcode" = no
854: then
855: if test -z $no_dynamic_default; then
856: no_dynamic_default=1
857: AC_MSG_WARN(Disabling default dynamic native code generation)
858: fi
859: AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
860: else
861: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
862: fi
863:
864: AC_MSG_CHECKING([if and how we can do comments in asm statements])
865: #the point here is to get asm statements that look different to
866: #gcc's "optimizer"
867: if test -z "$asmcomment"; then
868: asmcomment=no
869: CFLAGS_1="$CFLAGS"
870: CFLAGS="$CFLAGS $ENGINE_FLAGS"
871: for i in '"# "' '"! "' '"; "'; do
872: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
873: done
874: CFLAGS=$CFLAGS_1
875: fi
876: AC_MSG_RESULT($asmcomment)
877: if test "$asmcomment" != no
878: then
879: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
880: fi
881:
882: test "$no_dynamic_default" || no_dynamic_default=0
883: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
884:
885: dnl Checks for programs.
886: AC_PROG_LN_S
887: AC_PROG_INSTALL
888: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
889:
890: dnl MacOS X has a libtool that does something else
891: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
892:
893: dnl Checks for library functions
894: dnl This check is just for making later checks link with libm.
895: dnl using sin here is no good idea since it is built-into gcc and typechecked
896: AC_CHECK_LIB(m,asin)
897: AC_CHECK_LIB(ltdl,lt_dlinit)
898:
899: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
900: build_libcc_named=build-libcc-named
901: else
902: build_libcc_named=""
903: AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
904: fi
905: AC_SUBST(build_libcc_named)
906:
907:
908: if test -z "$GNU_LIBTOOL"; then
909: AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
910: AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
911: GNU_LIBTOOL=libtool
912: fi
913:
914: #check for libffi 2.x
915: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
916: if test -z "$FFI_H_NAME"; then
917: AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
918: fi
919: AC_SUBST(FFI_H_NAME)
920: AC_CHECK_LIB(ffi,ffi_call)
921: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
922: then
923: LIBFFIFLAG="true"
924: LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
925: else
926: LIBFFIFLAG="false"
927: fi
928: #check for ffcall libraries
929: #unfortunately, these four calls are separated out into a library each.
930: AC_CHECK_LIB(avcall,__builtin_avcall)
931: dnl AC_CHECK_LIB(callback,__vacall_r)
932: dnl AC_CHECK_LIB(vacall,vacall)
933: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
934: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
935: FFCALLFLAG="true"
936: LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
937: else
938: FFCALLFLAG="false"
939: fi
940: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
941: AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
942: fi
943: AC_SUBST(LIBFFIFLAG)
944: AC_SUBST(FFCALLFLAG)
945: AC_SUBST(LIBCC_BUILD_SRC)
946: if test "$host_os" != "nextstep3"
947: then
948: AC_FUNC_MEMCMP
949: fi
950: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
951: AC_FUNC_FSEEKO
952: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
953: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
954: AC_DECL_SYS_SIGLIST
955: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
956: AC_CHECK_FUNCS(expm1 log1p)
957: AC_REPLACE_FUNCS(rint ecvt)
958: dnl No check for select, because our replacement is no good under
959: dnl anything but DOS
960: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
961: AC_FUNC_FNMATCH
962: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
963: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
964: AM_PATH_LISPDIR
965:
966: kernel_fi=kernl${vwordsize}${bytesex}.fi
967: include_fi=kernl${wordsize}${bytesex}${EC}.fi
968: AC_SUBST(kernel_fi)
969: AC_SUBST(include_fi)
970:
971: #this breaks bindists
972: #dnl replace srource directory by absolute value
973: #if test $srcdir = "."; then srcdir=`pwd`
974: #fi
975:
976: AC_SUBST(machine)
977: AC_CONFIG_FILES([
978: Makefile
979: Makedist
980: gforthmi
981: vmgen
982: machpc.fs
983: envos.fs
984: preforth
985: engine/Makefile
986: engine/libcc.h
987: doc/version.texi
988: build-ec ])
989: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
990: chmod +x gforthmi
991: chmod +x vmgen
992: chmod +x build-ec
993: chmod +x preforth
994: test -d kernel||mkdir kernel
995: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
996: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
997: $srcdir/mkinstalldirs arch/$machine
998: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
999: [PACKAGE_VERSION=$PACKAGE_VERSION
1000: machine=$machine])
1001: AC_OUTPUT
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