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],[0.7.0-20090215],[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="November 8, 2008"
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="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
246: ;;
247: i*86)
248: machine=386
249: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
250: CFLAGS_1="$CFLAGS"
251: CFLAGS="$CFLAGS -march=pentium"
252: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
253: ;;
254: x86_64)
255: case $CC
256: in
257: *-m32*)
258: machine=386
259: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
260: CFLAGS_1="$CFLAGS"
261: CFLAGS="$CFLAGS -march=athlon64"
262: ;;
263: *)
264: machine=amd64
265: ;;
266: esac
267: ;;
268: ia64*)
269: machine=ia64
270: AC_LIBOBJ(../arch/ia64/flush_icache_block)
271: test "$skipcode" || skipcode="nop.i 0"
272: #".skip 16" passes the test below,
273: # but gives an assembler error in engine
274: ;;
275: m68k)
276: machine=m68k
277: CFLAGS="$CFLAGS -fomit-frame-pointer"
278: if test "$host_os" = "nextstep3"
279: then
280: AC_LIBOBJ(termios)
281: fi
282: ;;
283: mips*)
284: machine=mips
285: #dynamic native code has the following problems on MIPS:
286: #
287: #1) J/JAL seems relocatable, but is are only
288: #relocatable within a 256MB-segment. While we try to
289: #get the linker to arrange this, there is no guarantee
290: #that this will succeed (and if the user uses a lot of
291: #memory, it is likely to fail).
292: #
293: #2) The way we generate dynamic native code may
294: #violate MIPS architectural restrictions (in
295: #particular, the delay slots of LW, MFLO, etc.)
296: #
297: #Therefore we disable dynamic native code by default:
298: if test -z "$no_dynamic_default"; then
299: no_dynamic_default=1
300: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
301: fi
302: ;;
303: alpha*)
304: machine=alpha
305: #full IEEE FP support for more uniformity across platforms:
306: CFLAGS="$CFLAGS -mieee"
307: ;;
308: power*|rs6000)
309: machine=power
310: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
311: #long long is broken on (at least) gcc-2.95.* for PPC
312: test x$ac_cv_sizeof_long_long = x &&
313: ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
314: ac_cv_sizeof_long_long=0
315: #The only architecture with enough callee-saved registers
316: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
317: #or use 2, hardly slower at run-time and starts up faster
318:
319: #the skipcode that is normally selected below does not
320: #work with gcc-3.[34]
321: test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
322: ;;
323: *)
324: AC_MSG_WARN([Using a generic machine description])
325: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
326: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
327: machine=generic
328: #I-cache flushing would be needed for dynamic code generation
329: if test -z $no_dynamic_default; then
330: no_dynamic_default=1
331: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
332: fi
333: esac
334: AC_SUBST(host)
335:
336: MAKEINC=""
337:
338: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
339: if test x$EC_MODE = xtrue
340: then
341: echo "Check for arch/$machine/$platform/gforth.ld"
342: if test -f arch/$machine/$platform/gforth.ld
343: then
344: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
345: if test x$platform = xnxt; then
346: 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 $LIBS"
347: fi
348: fi
349: if test -f arch/$machine/$platform/make.inc
350: then
351: MAKEINC="include ../arch/$machine/$platform/make.inc"
352: fi
353: fi
354: AC_SUBST(MAKEINC)
355:
356: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
357:
358: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
359: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
360: [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
361: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
362: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
363: [number of registers in the default stack cache state for gforth-fast and gforth-native])
364:
365: test x$GCC_PR15242_WORKAROUND = x ||
366: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
367: [force (1) or forbid (0) use of a workaround for a gcc performance bug])
368:
369: dnl the following macro produces a warning with autoconf-2.1
370: AC_CHECK_SIZEOF(char *)
371: case "$ac_cv_sizeof_char_p" in
372: 2)
373: wordsize=16
374: ;;
375: 4)
376: wordsize=32
377: ;;
378: 8)
379: wordsize=64
380: ;;
381: esac
382:
383: AC_CHECK_SIZEOF(void *)
384: case "$ac_cv_sizeof_void_p" in
385: 2)
386: vwordsize=16
387: ;;
388: 4)
389: vwordsize=32
390: ;;
391: 8)
392: vwordsize=64
393: ;;
394: esac
395:
396: AC_CHECK_SIZEOF(char)
397: AC_CHECK_SIZEOF(short)
398: AC_CHECK_SIZEOF(int)
399: AC_CHECK_SIZEOF(long)
400: AC_CHECK_SIZEOF(long long)
401: AC_CHECK_SIZEOF(intptr_t)
402: AC_CHECK_SIZEOF(int128_t)
403: AC_CHECK_SIZEOF(uint128_t)
404:
405: AC_MSG_CHECKING([for a C type for cells])
406: ac_cv_int_type_cell=none
407: case "$ac_cv_sizeof_char_p" in
408: $ac_cv_sizeof_int)
409: ac_cv_int_type_cell=int
410: ;;
411: $ac_cv_sizeof_short)
412: ac_cv_int_type_cell=short
413: ;;
414: $ac_cv_sizeof_char)
415: ac_cv_int_type_cell=char
416: ;;
417: $ac_cv_sizeof_long)
418: ac_cv_int_type_cell=long
419: ;;
420: $ac_cv_sizeof_long_long)
421: ac_cv_int_type_cell="long long"
422: ;;
423: $ac_cv_sizeof_intptr_t)
424: ac_cv_int_type_cell="intptr_t"
425: ;;
426: esac
427: AC_MSG_RESULT($ac_cv_int_type_cell)
428: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
429:
430: AC_MSG_CHECKING([for a C type for wydes])
431: ac_cv_wyde_type_cell=none
432: case 2 in
433: $ac_cv_sizeof_int)
434: ac_cv_wyde_type_cell=int
435: ;;
436: $ac_cv_sizeof_short)
437: ac_cv_wyde_type_cell=short
438: ;;
439: $ac_cv_sizeof_char)
440: ac_cv_wyde_type_cell=char
441: ;;
442: $ac_cv_sizeof_long)
443: ac_cv_wyde_type_cell=long
444: ;;
445: $ac_cv_sizeof_long_long)
446: ac_cv_wyde_type_cell="long long"
447: ;;
448: $ac_cv_sizeof_intptr_t)
449: ac_cv_wyde_type_cell="intptr_t"
450: ;;
451: esac
452: AC_MSG_RESULT($ac_cv_wyde_type_cell)
453: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
454:
455: AC_MSG_CHECKING([for a C type for tetrabytes])
456: ac_cv_tetrabyte_type_cell=none
457: case 4 in
458: $ac_cv_sizeof_int)
459: ac_cv_tetrabyte_type_cell=int
460: ;;
461: $ac_cv_sizeof_short)
462: ac_cv_tetrabyte_type_cell=short
463: ;;
464: $ac_cv_sizeof_char)
465: ac_cv_tetrabyte_type_cell=char
466: ;;
467: $ac_cv_sizeof_long)
468: ac_cv_tetrabyte_type_cell=long
469: ;;
470: $ac_cv_sizeof_long_long)
471: ac_cv_tetrabyte_type_cell="long long"
472: ;;
473: $ac_cv_sizeof_intptr_t)
474: ac_cv_tetrabyte_type_cell="intptr_t"
475: ;;
476: esac
477: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
478: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
479:
480: AC_MSG_CHECKING([for a C type for double-cells])
481: ac_cv_int_type_double_cell=none
482: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
483: $ac_cv_sizeof_short)
484: ac_cv_int_type_double_cell=short
485: ;;
486: $ac_cv_sizeof_int)
487: ac_cv_int_type_double_cell=int
488: ;;
489: $ac_cv_sizeof_long)
490: ac_cv_int_type_double_cell=long
491: ;;
492: $ac_cv_sizeof_long_long)
493: ac_cv_int_type_double_cell="long long"
494: ;;
495: $ac_cv_sizeof_intptr_t)
496: ac_cv_int_type_double_cell="intptr_t"
497: ;;
498: $ac_cv_sizeof_int128_t)
499: ac_cv_int_type_double_cell="int128_t"
500: ;;
501: esac
502: AC_MSG_RESULT($ac_cv_int_type_double_cell)
503:
504: AC_MSG_CHECKING([for a C type for unsigned double-cells])
505: ac_cv_int_type_double_ucell=none
506: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
507: $ac_cv_sizeof_short)
508: ac_cv_int_type_double_ucell="unsigned short"
509: ;;
510: $ac_cv_sizeof_int)
511: ac_cv_int_type_double_ucell="unsigned int"
512: ;;
513: $ac_cv_sizeof_long)
514: ac_cv_int_type_double_ucell="unsigned long"
515: ;;
516: $ac_cv_sizeof_long_long)
517: ac_cv_int_type_double_ucell="unsigned long long"
518: ;;
519: $ac_cv_sizeof_intptr_t)
520: ac_cv_int_type_double_ucell="unsigned intptr_t"
521: ;;
522: $ac_cv_sizeof_uint128_t)
523: ac_cv_int_type_double_ucell="uint128_t"
524: ;;
525: esac
526: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
527:
528: if test "$ac_cv_int_type_double_cell" != none && \
529: test "$ac_cv_int_type_double_ucell" != none
530: then
531: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
532: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
533: OPTS=-ll
534: else
535: if test "$ac_cv_sizeof_char_p" = 8; then
536: OPTS="-ll -noll"
537: else
538: OPTS=-noll
539: fi
540: fi
541:
542: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
543: OPTS2=''
544: for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
545: OPTS="$OPTS2 $OPTS"
546: else
547: AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
548: fi
549: AC_SUBST(OPTS)
550:
551: AC_TYPE_OFF_T
552: AC_CHECK_SIZEOF(off_t)
553: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
554: ac_small_off_t=$?
555: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
556:
557: ENGINE_FLAGS=
558: AC_SUBST(ENGINE_FLAGS)
559:
560: # Try if GCC understands -fno-gcse
561:
562: AC_MSG_CHECKING([if $CC understands -fno-gcse])
563: CFLAGS_1="$CFLAGS"
564: CFLAGS="$CFLAGS -fno-gcse"
565: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
566: CFLAGS="$CFLAGS_1"
567: AC_MSG_RESULT($ac_nogcse)
568:
569: # Try if GCC understands -fno-strict-aliasing
570: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
571: CFLAGS_1="$CFLAGS"
572: CFLAGS="$CFLAGS -fno-strict-aliasing"
573: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
574: CFLAGS="$CFLAGS_1"
575: AC_MSG_RESULT($ac_nostrictaliasing)
576:
577: # Try if GCC understands -fno-crossjumping
578: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
579: CFLAGS_1="$CFLAGS"
580: CFLAGS="$CFLAGS -fno-crossjumping"
581: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
582: CFLAGS="$CFLAGS_1"
583: AC_MSG_RESULT($ac_nocrossjumping)
584:
585: # Try if GCC understands -fno-reorder-blocks
586: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
587: CFLAGS_1="$CFLAGS"
588: CFLAGS="$CFLAGS -fno-reorder-blocks"
589: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
590: CFLAGS="$CFLAGS_1"
591: AC_MSG_RESULT($ac_noreorder_blocks)
592:
593: # Try if GCC understands -falign-labels=1
594: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
595: CFLAGS_1="$CFLAGS"
596: CFLAGS="$CFLAGS -falign-labels=1"
597: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
598: CFLAGS="$CFLAGS_1"
599: AC_MSG_RESULT($ac_align_labels)
600:
601: # Try if GCC understands -falign-loops=1
602: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
603: CFLAGS_1="$CFLAGS"
604: CFLAGS="$CFLAGS -falign-loops=1"
605: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
606: CFLAGS="$CFLAGS_1"
607: AC_MSG_RESULT($ac_align_loops)
608:
609: # Try if GCC understands -falign-jumps=1
610: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
611: CFLAGS_1="$CFLAGS"
612: CFLAGS="$CFLAGS -falign-jumps=1"
613: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
614: CFLAGS="$CFLAGS_1"
615: AC_MSG_RESULT($ac_align_jumps)
616:
617: if test -z "$LIBTOOL_CC"
618: then
619: LIBTOOL_CC="$CC"
620: # Try if GCC understands -Wimplicit-function-declaration
621: AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
622: CFLAGS_1="$CFLAGS"
623: CFLAGS="$CFLAGS -Wimplicit-function-declaration"
624: AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
625: CFLAGS="$CFLAGS_1"
626: AC_MSG_RESULT($ac_align_jumps)
627: fi
628: AC_SUBST(LIBTOOL_CC)
629:
630:
631:
632: # Try if GCC understands __attribute__((unused))
633: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
634: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
635: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
636: AC_MSG_RESULT($MAYBE_UNUSED)
637:
638: #try if m4 understands -s
639: AC_MSG_CHECKING([how to invoke m4])
640: if m4 -s /dev/null >/dev/null 2>&1; then
641: M4="m4 -s"
642: else
643: M4=m4
644: fi
645: AC_SUBST(M4)
646: AC_MSG_RESULT($M4)
647:
648: # Find installed Gforth
649: AC_MSG_CHECKING([for gforth])
650: GFORTH="`cd / && which gforth 2>/dev/null`"
651: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
652: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null && test "$srcdir" = ".") || GFORTH=""
653: if test -z "$GFORTH"; then
654: PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
655: kernel_anti_dependence=''
656: else
657: PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
658: kernel_anti_dependence='$(kernel_fi)'
659: fi
660: AC_SUBST(PREFORTH)
661: AC_SUBST(kernel_anti_dependence)
662: AC_MSG_RESULT($PREFORTH)
663:
664: #echo "machine='$machine'"
665:
666: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
667: if test x$EC_MODE = xfalse
668: then
669: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],)
670: fi
671: AC_SUBST(asm_fs)
672:
673: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
674: if test x$EC_MODE = xfalse
675: then
676: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],)
677: fi
678: AC_SUBST(disasm_fs)
679:
680: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
681:
682: case "$host_os" in
683: *win32*)
684: # !!!FIXME!!! problems with cygwin and ';' as path separator
685: DIRSEP="\\\\"
686: PATHSEP=";"
687: #we want the builtins of command.com/cmd.exe and its
688: # handling of .com files.
689: #$COMSPEC contains the name of the Windows shell;
690: # the ./ is there, because the bash does not recognize
691: # absolute DOS filenames
692: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
693: ;;
694: *darwin*)
695: #Darwin uses some funny preprocessor by default; eliminate it:
696: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
697: CFLAGS="$CFLAGS -no-cpp-precomp"
698: DIRSEP="/"
699: PATHSEP=":"
700: DEFAULTSYSTEMPREFIX=""
701: #the following magic value was suggested by
702: #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
703: AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
704: ;;
705: *linux*)
706: DIRSEP="/"
707: PATHSEP=":"
708: DEFAULTSYSTEMPREFIX=""
709: if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
710: LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
711: fi
712: ;;
713: *)
714: DIRSEP="/"
715: PATHSEP=":"
716: DEFAULTSYSTEMPREFIX=""
717: ;;
718: esac
719: AC_SUBST(DIRSEP)
720: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
721: AC_SUBST(PATHSEP)
722: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
723: AC_SUBST(DEFAULTSYSTEMPREFIX)
724: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
725: if test -n "$LTDL_LIBRARY_PATH"; then
726: AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
727: fi
728:
729: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
730: #This magic incantation seems to be completely undocumented.
731: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
732:
733: dnl Now a little support for DOS/DJGCC
734: AC_SUBST(GFORTH_EXE)
735: GFORTH_EXE="true"
736: AC_SUBST(GFORTHFAST_EXE)
737: GFORTHFAST_EXE="true"
738: AC_SUBST(GFORTHITC_EXE)
739: GFORTHITC_EXE="true"
740: AC_SUBST(GFORTHDITC_EXE)
741: GFORTHDITC_EXE="true"
742:
743: AC_SUBST(FORTHSIZES)
744:
745: dnl if test "$PEEPHOLE" = "yes"
746: dnl then
747: dnl PEEPHOLEFLAG="true"
748: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
749: dnl else
750: dnl PEEPHOLEFLAG="false"
751: dnl fi
752: PEEPHOLEFLAG="true"
753: AC_SUBST(PEEPHOLEFLAG)
754:
755: dnl copy commands for systems that don't have links
756: AC_SUBST(LINK_KERNL)
757: LINK_KERNL=""
758:
759: #if test $host_os=dos
760: #then
761: # echo Configuring for DOS!!!
762: # MAKE_EXE="coff2exe gforth"
763: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
764: #fi
765:
766: dnl the following macro produces a warning with autoconf-2.1
767: AC_C_BIGENDIAN
768: AC_SUBST(KERNEL)
769: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
770: if test $ac_cv_c_bigendian != no; then
771: bytesex=b
772: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
773: else
774: bytesex=l
775: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
776: fi
777:
778: #check how to do asm(".skip 16")
779: #echo "CFLAGS=$CFLAGS"
780: #echo "ac_link=$ac_link"
781: AC_MSG_CHECKING([if and how we can waste code space])
782: if test -z "$skipcode"; then
783: skipcode=no
784: CFLAGS_1="$CFLAGS"
785: CFLAGS="$CFLAGS $ENGINE_FLAGS"
786: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
787: do
788: AC_TRY_RUN(
789: [int foo(int,int,int);
790: main()
791: {
792: exit(foo(0,0,0)!=16);
793: }
794: int foo(int x, int y, int z)
795: {
796: static void *labels[]={&&label1, &&label2};
797: if (x) {
798: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
799: label1:
800: asm("$i"); /* or ".space 16" or somesuch */
801: label2: ;
802: }
803: {
804: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
805: return labels[1]-labels[0];
806: }
807: }]
808: ,skipcode=$i; break
809: ,,)
810: done
811: CFLAGS=$CFLAGS_1
812: fi
813: AC_MSG_RESULT($skipcode)
814: if test "$skipcode" = no
815: then
816: if test -z $no_dynamic_default; then
817: no_dynamic_default=1
818: AC_MSG_WARN(Disabling default dynamic native code generation)
819: fi
820: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
821: else
822: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
823: fi
824:
825: AC_MSG_CHECKING([if and how we can do comments in asm statements])
826: #the point here is to get asm statements that look different to
827: #gcc's "optimizer"
828: if test -z "$asmcomment"; then
829: asmcomment=no
830: CFLAGS_1="$CFLAGS"
831: CFLAGS="$CFLAGS $ENGINE_FLAGS"
832: for i in '"# "' '"! "' '"; "'; do
833: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
834: done
835: CFLAGS=$CFLAGS_1
836: fi
837: AC_MSG_RESULT($asmcomment)
838: if test "$asmcomment" != no
839: then
840: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
841: fi
842:
843: test "$no_dynamic_default" || no_dynamic_default=0
844: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
845:
846: dnl Checks for programs.
847: AC_PROG_LN_S
848: AC_PROG_INSTALL
849: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
850:
851: dnl MacOS X has a libtool that does something else
852: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
853:
854: dnl Checks for library functions
855: dnl This check is just for making later checks link with libm.
856: dnl using sin here is no good idea since it is built-into gcc and typechecked
857: AC_CHECK_LIB(m,asin)
858: AC_CHECK_LIB(ltdl,lt_dlinit)
859:
860: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
861: build_libcc_named=build-libcc-named
862: else
863: build_libcc_named=""
864: AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
865: fi
866: AC_SUBST(build_libcc_named)
867:
868:
869: if test -z "$GNU_LIBTOOL"; then
870: AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
871: AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
872: GNU_LIBTOOL=libtool
873: fi
874:
875: #check for libffi 2.x
876: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
877: if test -z "$FFI_H_NAME"; then
878: AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
879: fi
880: AC_SUBST(FFI_H_NAME)
881: AC_CHECK_LIB(ffi,ffi_call)
882: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
883: then
884: LIBFFIFLAG="true"
885: LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
886: else
887: LIBFFIFLAG="false"
888: fi
889: #check for ffcall libraries
890: #unfortunately, these four calls are separated out into a library each.
891: AC_CHECK_LIB(avcall,__builtin_avcall)
892: dnl AC_CHECK_LIB(callback,__vacall_r)
893: dnl AC_CHECK_LIB(vacall,vacall)
894: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
895: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
896: FFCALLFLAG="true"
897: LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
898: else
899: FFCALLFLAG="false"
900: fi
901: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
902: AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
903: fi
904: AC_SUBST(LIBFFIFLAG)
905: AC_SUBST(FFCALLFLAG)
906: AC_SUBST(LIBCC_BUILD_SRC)
907: if test "$host_os" != "nextstep3"
908: then
909: AC_FUNC_MEMCMP
910: fi
911: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
912: AC_FUNC_FSEEKO
913: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
914: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
915: AC_DECL_SYS_SIGLIST
916: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
917: AC_CHECK_FUNCS(expm1 log1p)
918: AC_REPLACE_FUNCS(rint ecvt)
919: dnl No check for select, because our replacement is no good under
920: dnl anything but DOS
921: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h)
922: AC_FUNC_FNMATCH
923: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
924: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
925: AM_PATH_LISPDIR
926:
927: kernel_fi=kernl${vwordsize}${bytesex}.fi
928: include_fi=kernl${wordsize}${bytesex}${EC}.fi
929: AC_SUBST(kernel_fi)
930: AC_SUBST(include_fi)
931:
932: #this breaks bindists
933: #dnl replace srource directory by absolute value
934: #if test $srcdir = "."; then srcdir=`pwd`
935: #fi
936:
937: AC_SUBST(machine)
938: AC_CONFIG_FILES([
939: Makefile
940: Makedist
941: gforthmi
942: vmgen
943: machpc.fs
944: envos.fs
945: preforth
946: engine/Makefile
947: engine/libcc.h
948: doc/version.texi
949: build-ec ])
950: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
951: chmod +x gforthmi
952: chmod +x vmgen
953: chmod +x build-ec
954: chmod +x preforth
955: test -d kernel||mkdir kernel
956: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
957: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
958: $srcdir/mkinstalldirs arch/$machine
959: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
960: [PACKAGE_VERSION=$PACKAGE_VERSION
961: machine=$machine])
962: AC_OUTPUT
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