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 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],[0.6.9-20080405],[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="February 23, 2008"
29: AC_SUBST(UPDATED)
30: AC_CONFIG_HEADERS(engine/config.h)
31:
32: #ltdl stuff:
33: AC_CONFIG_MACRO_DIR([libltdl/m4])
34: LT_CONFIG_LTDL_DIR([libltdl])
35: LT_INIT([dlopen])
36: LTDL_INIT([subproject],[convenience])
37: AC_CONFIG_AUX_DIR([libltdl/config])
38:
39: echo check for ltdl features
40: # check for ltdl features we need
41: # The lt_dladvise_init symbol was added with libtool-2.2
42: if test "x$with_included_ltdl" != "xyes"; then
43: save_CFLAGS="$CFLAGS"
44: save_LDFLAGS="$LDFLAGS"
45: CFLAGS="$CFLAGS $LTDLINCL"
46: LDFLAGS="$LDFLAGS $LIBLTDL"
47: AC_CHECK_LIB([ltdl], [lt_dladvise_init],
48: [],
49: [AC_MSG_ERROR([libltdl-2.2 or later needed; configure with --with-included-ltdl])])
50: LDFLAGS="$save_LDFLAGS"
51: CFLAGS="$save_CFLAGS"
52: fi
53:
54: #how to link with libltdl
55: if test "x$with_included_ltdl" = "xyes"; then
56: #hard-code it (hopefully portable); the official way is to use automake :-(
57: LTDL_LDLIBS='-L $(top_builddir)/libltdl/.libs -lltdlc'
58: else
59: LTDL_LDLIBS='$(LIBLTDL)'
60: fi
61: AC_SUBST(LTDL_LDLIBS)
62:
63: #suppress the "-g -O2" default
64: test "$CFLAGS" || CFLAGS=-O2
65:
66: AC_ARG_ENABLE(force-cdiv,
67: AC_HELP_STRING([--enable-force-cdiv],
68: [ Use the native C division - symmetric - instead of
69: floored division (default disabled).]),
70: ,enable_force_cdiv=no)
71: test "$enable_force_cdiv" = "no"||
72: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
73:
74: AC_SUBST(PROFEXES)
75: AC_SUBST(PROFOBJS)
76: AC_ARG_ENABLE(prof,
77: AC_HELP_STRING([--enable-prof],
78: [ Build gforth-prof, which outputs frequently occuring
79: sequences of primitives.]),
80: ,enable_prof=no)
81: if test "$enable_prof" != "no"; then
82: PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o'
83: fi
84:
85: AC_ARG_WITH(debug,
86: [ --with-debug specifies option -g to compile with debug info
87: --without-debug omits the -g switch and creates smaller images on
88: machines where "strip" has problems with gcc style
89: debugging informations.],
90: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
91:
92: GCC_LD="\$(GCC)"
93: EC_MODE="false"
94: EC=""
95: engine2='engine2$(OPT).o'
96: engine_fast2='engine-fast2$(OPT).o'
97: no_dynamic=""
98: image_i=""
99: signals_o="io.o signals.o"
100:
101: AC_ARG_WITH(ec,
102: AC_HELP_STRING([--with-ec=<arch>],
103: [ Build gforth for systems without OS.]),
104: [if test "$withval" = "no"; then
105: echo "defining hosted system"
106: else
107: echo "defining standalone system (${withval})"
108: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
109: EC_MODE="true"
110: EC="-ec"
111: engine2=""
112: engine_fast2=""
113: no_dynamic="-DNO_DYNAMIC"
114: image_i="image.i"
115: if test "$withval" != "yes"; then
116: signals_o="io-${withval}.o"
117: else
118: signals_o="io.o"
119: fi
120: GCC_PATH=$(which $CC)
121: LIB_PATH=${GCC_PATH%/*/*}
122: GCC_LD="\$(LD)"
123: platform=${withval}
124: fi])
125:
126: #variables mentioned in INSTALL
127: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
128: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
129: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
130: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
131: 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)])
132:
133: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
134: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
135: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
136: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
137: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
138: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
139: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
140: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
141: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
142: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
143: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
144: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
145: AC_ARG_VAR(asmcomment, [assembler comment start string])
146: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
147:
148: #set up feature test macros, so the tests get them right:
149: # turn on all POSIX, SUSv3, and GNU features if available
150: AC_GNU_SOURCE
151: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
152:
153: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
154: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
155: dnl but not for _XOPEN_SOURCE)
156: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
157: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
158: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
159: # turn on large file support with 64-bit off_t where available
160: AC_SYS_LARGEFILE
161: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
162: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
163:
164: #currently we force direct threading this way. Eventually we should
165: #setup in the arch and engine files right
166:
167: AC_PROG_CC
168:
169: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
170:
171: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
172: test x$condbranch_opt = x &&
173: if ($CC -v 2>&1 |grep -q 'gcc version 3'); then
174: condbranch_opt=0
175: else
176: condbranch_opt=1
177: fi
178: AC_MSG_RESULT($condbranch_opt)
179: AC_SUBST(condbranch_opt)
180:
181: AC_SUBST(CC)
182: AC_SUBST(GCC_LD)
183: AC_SUBST(DEBUGFLAG)
184: AC_SUBST(EC)
185: AC_SUBST(EC_MODE)
186: AC_SUBST(engine2)
187: AC_SUBST(engine_fast2)
188: AC_SUBST(no_dynamic)
189: AC_SUBST(image_i)
190: AC_SUBST(signals_o)
191:
192: #this is used to disable some (not generally essential) part of the
193: #Makefile that some makes don't grok. It would be better to test for
194: #this specific Makefile feature than the make version.
195: AC_MSG_CHECKING(make type)
196: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
197: GNUMAKE='#'
198: test "$make_type" = "GNU Make" && GNUMAKE=''
199: AC_MSG_RESULT($make_type)
200: AC_SUBST(GNUMAKE)
201:
202: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
203: OLDLDFLAGS=$LDFLAGS
204: LDFLAGS="$LDFLAGS -export-dynamic"
205: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
206: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
207: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
208: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
209: AC_MSG_RESULT($ac_export_dynamic)
210:
211: #terminology is a bit unusual here: The host is the system on which
212: #gforth will run; the system on which configure will run is the `build'
213: AC_CANONICAL_HOST
214: case "$host_cpu" in
215: arm*)
216: machine=arm
217: CFLAGS="$CFLAGS -fomit-frame-pointer"
218: if test x$platform = xnxt; then
219: CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
220: fi
221: if test -z $arm_cacheflush; then
222: case "$host_os" in
223: *linux*)
224: arm_cacheflush=arch/arm/cacheflush-linux
225: ;;
226: *)
227: no_dynamic_default=1
228: arm_cacheflush=arch/arm/cacheflush0
229: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
230: ;;
231: esac
232: fi
233: AC_LIBSOURCES([../arch/arm/cacheflush0, dnl
234: ../arch/arm/cacheflush-linux])
235: AC_LIBOBJ(../$arm_cacheflush)
236: #longer skipcodes lead to problems on ARM, and it uses
237: #only 4-byte alignment anyway
238: test "$skipcode" || skipcode="nop"
239: ;;
240: hppa*)
241: machine=hppa
242: $srcdir/mkinstalldirs arch/hppa
243: AC_LIBOBJ(../arch/hppa/cache)
244: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
245: LDFLAGS="$LDFLAGS -Xlinker -N"
246: LIBS="$LIBS -L/lib/pa1.1/"
247: ;;
248: sparc*)
249: machine=sparc
250: ;;
251: i386)
252: machine=386
253: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
254: ;;
255: i486)
256: machine=386
257: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
258: ;;
259: i*86)
260: machine=386
261: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
262: CFLAGS_1="$CFLAGS"
263: CFLAGS="$CFLAGS -march=pentium"
264: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
265: ;;
266: x86_64)
267: case $CC
268: in
269: *-m32*)
270: machine=386
271: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
272: CFLAGS_1="$CFLAGS"
273: CFLAGS="$CFLAGS -march=athlon64"
274: ;;
275: *)
276: machine=amd64
277: ;;
278: esac
279: ;;
280: ia64*)
281: machine=ia64
282: AC_LIBOBJ(../arch/ia64/flush_icache_block)
283: test "$skipcode" || skipcode="nop.i 0"
284: #".skip 16" passes the test below,
285: # but gives an assembler error in engine
286: ;;
287: m68k)
288: machine=m68k
289: CFLAGS="$CFLAGS -fomit-frame-pointer"
290: if test "$host_os" = "nextstep3"
291: then
292: AC_LIBOBJ(termios)
293: fi
294: ;;
295: mips*)
296: machine=mips
297: #dynamic native code has the following problems on MIPS:
298: #
299: #1) J/JAL seems relocatable, but is are only
300: #relocatable within a 256MB-segment. While we try to
301: #get the linker to arrange this, there is no guarantee
302: #that this will succeed (and if the user uses a lot of
303: #memory, it is likely to fail).
304: #
305: #2) The way we generate dynamic native code may
306: #violate MIPS architectural restrictions (in
307: #particular, the delay slots of LW, MFLO, etc.)
308: #
309: #Therefore we disable dynamic native code by default:
310: if test -z $no_dynamic_default; then
311: no_dynamic_default=1
312: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
313: fi
314: ;;
315: alpha*)
316: machine=alpha
317: #full IEEE FP support for more uniformity across platforms:
318: CFLAGS="$CFLAGS -mieee"
319: ;;
320: power*|rs6000)
321: machine=power
322: $srcdir/mkinstalldirs arch/power
323: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
324: #long long is broken on (at least) gcc-2.95.* for PPC
325: test x$ac_cv_sizeof_long_long = x &&
326: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
327: ac_cv_sizeof_long_long=0
328: #The only architecture with enough callee-saved registers
329: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
330: #or use 2, hardly slower at run-time and starts up faster
331: ;;
332: *)
333: AC_MSG_WARN([Using a generic machine description])
334: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
335: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
336: machine=generic
337: #I-cache flushing would be needed for dynamic code generation
338: if test -z $no_dynamic_default; then
339: no_dynamic_default=1
340: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
341: fi
342: esac
343: AC_SUBST(host)
344:
345: MAKEINC=""
346:
347: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
348: if test x$EC_MODE = xtrue
349: then
350: echo "Check for arch/$machine/$platform/gforth.ld"
351: if test -f arch/$machine/$platform/gforth.ld
352: then
353: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
354: if test x$platform = xnxt; then
355: 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 $LIBS"
356: fi
357: fi
358: if test -f arch/$machine/$platform/make.inc
359: then
360: MAKEINC="include ../arch/$machine/$platform/make.inc"
361: fi
362: fi
363: AC_SUBST(MAKEINC)
364:
365: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
366:
367: test x$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,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
488:
489: AC_MSG_CHECKING([for a C type for double-cells])
490: ac_cv_int_type_double_cell=none
491: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
492: $ac_cv_sizeof_short)
493: ac_cv_int_type_double_cell=short
494: ;;
495: $ac_cv_sizeof_int)
496: ac_cv_int_type_double_cell=int
497: ;;
498: $ac_cv_sizeof_long)
499: ac_cv_int_type_double_cell=long
500: ;;
501: $ac_cv_sizeof_long_long)
502: ac_cv_int_type_double_cell="long long"
503: ;;
504: $ac_cv_sizeof_intptr_t)
505: ac_cv_int_type_double_cell="intptr_t"
506: ;;
507: $ac_cv_sizeof_int128_t)
508: ac_cv_int_type_double_cell="int128_t"
509: ;;
510: esac
511: AC_MSG_RESULT($ac_cv_int_type_double_cell)
512:
513: AC_MSG_CHECKING([for a C type for unsigned double-cells])
514: ac_cv_int_type_double_ucell=none
515: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
516: $ac_cv_sizeof_short)
517: ac_cv_int_type_double_ucell="unsigned short"
518: ;;
519: $ac_cv_sizeof_int)
520: ac_cv_int_type_double_ucell="unsigned int"
521: ;;
522: $ac_cv_sizeof_long)
523: ac_cv_int_type_double_ucell="unsigned long"
524: ;;
525: $ac_cv_sizeof_long_long)
526: ac_cv_int_type_double_ucell="unsigned long long"
527: ;;
528: $ac_cv_sizeof_intptr_t)
529: ac_cv_int_type_double_ucell="unsigned intptr_t"
530: ;;
531: $ac_cv_sizeof_uint128_t)
532: ac_cv_int_type_double_ucell="uint128_t"
533: ;;
534: esac
535: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
536:
537: if test "$ac_cv_int_type_double_cell" != none && \
538: test "$ac_cv_int_type_double_ucell" != none
539: then
540: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
541: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
542: OPTS=-ll
543: else
544: if test "$ac_cv_sizeof_char_p" = 8; then
545: OPTS="-ll -noll"
546: else
547: OPTS=-noll
548: fi
549: fi
550:
551: if grep -q FORCE_REG arch/$machine/machine.h; then
552: OPTS=`for i in $OPTS; do echo -n "$i-reg "; done`$OPTS
553: fi
554: AC_SUBST(OPTS)
555:
556: AC_TYPE_OFF_T
557: AC_CHECK_SIZEOF(off_t)
558: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
559: ac_small_off_t=$?
560: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
561:
562: ENGINE_FLAGS=
563: AC_SUBST(ENGINE_FLAGS)
564:
565: # Try if GCC understands -fno-gcse
566:
567: AC_MSG_CHECKING([if $CC understands -fno-gcse])
568: CFLAGS_1="$CFLAGS"
569: CFLAGS="$CFLAGS -fno-gcse"
570: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
571: CFLAGS="$CFLAGS_1"
572: AC_MSG_RESULT($ac_nogcse)
573:
574: # Try if GCC understands -fno-strict-aliasing
575: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
576: CFLAGS_1="$CFLAGS"
577: CFLAGS="$CFLAGS -fno-strict-aliasing"
578: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
579: CFLAGS="$CFLAGS_1"
580: AC_MSG_RESULT($ac_nostrictaliasing)
581:
582: # Try if GCC understands -fno-crossjumping
583: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
584: CFLAGS_1="$CFLAGS"
585: CFLAGS="$CFLAGS -fno-crossjumping"
586: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
587: CFLAGS="$CFLAGS_1"
588: AC_MSG_RESULT($ac_nocrossjumping)
589:
590: # Try if GCC understands -fno-reorder-blocks
591: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
592: CFLAGS_1="$CFLAGS"
593: CFLAGS="$CFLAGS -fno-reorder-blocks"
594: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
595: CFLAGS="$CFLAGS_1"
596: AC_MSG_RESULT($ac_noreorder_blocks)
597:
598: # Try if GCC understands -falign-labels=1
599: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
600: CFLAGS_1="$CFLAGS"
601: CFLAGS="$CFLAGS -falign-labels=1"
602: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
603: CFLAGS="$CFLAGS_1"
604: AC_MSG_RESULT($ac_align_labels)
605:
606: # Try if GCC understands -falign-loops=1
607: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
608: CFLAGS_1="$CFLAGS"
609: CFLAGS="$CFLAGS -falign-loops=1"
610: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
611: CFLAGS="$CFLAGS_1"
612: AC_MSG_RESULT($ac_align_loops)
613:
614: # Try if GCC understands -falign-jumps=1
615: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
616: CFLAGS_1="$CFLAGS"
617: CFLAGS="$CFLAGS -falign-jumps=1"
618: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
619: CFLAGS="$CFLAGS_1"
620: AC_MSG_RESULT($ac_align_jumps)
621:
622: # Try if GCC understands __attribute__((unused))
623: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
624: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
625: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
626: AC_MSG_RESULT($MAYBE_UNUSED)
627:
628: #try if m4 understands -s
629: AC_MSG_CHECKING([how to invoke m4])
630: if m4 -s /dev/null >/dev/null 2>&1; then
631: M4="m4 -s"
632: else
633: M4=m4
634: fi
635: AC_SUBST(M4)
636: AC_DEFINE_UNQUOTED(M4,"$M4",[How to invoke m4])
637: AC_MSG_RESULT($M4)
638:
639: # Find installed Gforth
640: AC_MSG_CHECKING([for gforth])
641: GFORTH="`cd / && which gforth 2>/dev/null`"
642: if test -z "$GFORTH"; then
643: PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
644: else
645: PREFORTH="$GFORTH -i `cd / && gforth --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
646: fi
647: AC_SUBST(PREFORTH)
648: AC_DEFINE_UNQUOTED(PREFORTH,"$PREFORTH",[How to invoke the pre-installed gforth])
649: AC_MSG_RESULT($PREFORTH)
650:
651: #echo "machine='$machine'"
652:
653: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
654: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],)
655: AC_SUBST(asm_fs)
656:
657: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
658: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],)
659: AC_SUBST(disasm_fs)
660:
661: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
662:
663: case "$host_os" in
664: *win32*)
665: # !!!FIXME!!! problems with cygwin and ';' as path separator
666: DIRSEP="\\\\"
667: PATHSEP=";"
668: #we want the builtins of command.com/cmd.exe and its
669: # handling of .com files.
670: #$COMSPEC contains the name of the Windows shell;
671: # the ./ is there, because the bash does not recognize
672: # absolute DOS filenames
673: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
674: ;;
675: *darwin*)
676: #Darwin uses some funny preprocessor by default; eliminate it:
677: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
678: CFLAGS="$CFLAGS -no-cpp-precomp"
679: DIRSEP="/"
680: PATHSEP=":"
681: DEFAULTSYSTEMPREFIX=""
682: ;;
683: *)
684: DIRSEP="/"
685: PATHSEP=":"
686: DEFAULTSYSTEMPREFIX=""
687: ;;
688: esac
689: AC_SUBST(DIRSEP)
690: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
691: AC_SUBST(PATHSEP)
692: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
693: AC_SUBST(DEFAULTSYSTEMPREFIX)
694: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
695:
696: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
697: #This magic incantation seems to be completely undocumented.
698: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
699:
700: dnl Now a little support for DOS/DJGCC
701: AC_SUBST(GFORTH_EXE)
702: GFORTH_EXE="true"
703: AC_SUBST(GFORTHFAST_EXE)
704: GFORTHFAST_EXE="true"
705: AC_SUBST(GFORTHITC_EXE)
706: GFORTHITC_EXE="true"
707: AC_SUBST(GFORTHDITC_EXE)
708: GFORTHDITC_EXE="true"
709:
710: AC_SUBST(FORTHSIZES)
711:
712: dnl if test "$PEEPHOLE" = "yes"
713: dnl then
714: dnl PEEPHOLEFLAG="true"
715: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
716: dnl else
717: dnl PEEPHOLEFLAG="false"
718: dnl fi
719: PEEPHOLEFLAG="true"
720: AC_SUBST(PEEPHOLEFLAG)
721:
722: dnl copy commands for systems that don't have links
723: AC_SUBST(LINK_KERNL)
724: LINK_KERNL=""
725:
726: #if test $host_os=dos
727: #then
728: # echo Configuring for DOS!!!
729: # MAKE_EXE="coff2exe gforth"
730: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
731: #fi
732:
733: dnl the following macro produces a warning with autoconf-2.1
734: AC_C_BIGENDIAN
735: AC_SUBST(KERNEL)
736: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
737: if test $ac_cv_c_bigendian = yes; then
738: bytesex=b
739: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
740: else
741: bytesex=l
742: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
743: fi
744:
745: #check how to do asm(".skip 16")
746: #echo "CFLAGS=$CFLAGS"
747: #echo "ac_link=$ac_link"
748: AC_MSG_CHECKING([if and how we can waste code space])
749: if test -z "$skipcode"; then
750: skipcode=no
751: CFLAGS_1="$CFLAGS"
752: CFLAGS="$CFLAGS $ENGINE_FLAGS"
753: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
754: do
755: AC_TRY_RUN(
756: [int foo(int,int,int);
757: main()
758: {
759: exit(foo(0,0,0)!=16);
760: }
761: int foo(int x, int y, int z)
762: {
763: static void *labels[]={&&label1, &&label2};
764: if (x) {
765: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
766: label1:
767: asm("$i"); /* or ".space 16" or somesuch */
768: label2: ;
769: }
770: {
771: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
772: return labels[1]-labels[0];
773: }
774: }]
775: ,skipcode=$i; break
776: ,,)
777: done
778: CFLAGS=$CFLAGS_1
779: fi
780: AC_MSG_RESULT($skipcode)
781: if test "$skipcode" = no
782: then
783: if test -z $no_dynamic_default; then
784: no_dynamic_default=1
785: AC_MSG_WARN(Disabling default dynamic native code generation)
786: fi
787: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
788: else
789: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
790: fi
791:
792: AC_MSG_CHECKING([if and how we can do comments in asm statements])
793: #the point here is to get asm statements that look different to
794: #gcc's "optimizer"
795: if test -z "$asmcomment"; then
796: asmcomment=no
797: CFLAGS_1="$CFLAGS"
798: CFLAGS="$CFLAGS $ENGINE_FLAGS"
799: for i in '"# "' '"! "' '"; "'; do
800: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
801: done
802: CFLAGS=$CFLAGS_1
803: fi
804: AC_MSG_RESULT($asmcomment)
805: if test "$asmcomment" != no
806: then
807: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
808: fi
809:
810: test "$no_dynamic_default" || no_dynamic_default=0
811: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
812:
813: dnl Checks for programs.
814: AC_PROG_LN_S
815: AC_PROG_INSTALL
816: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
817:
818: dnl MacOS X has a libtool that does something else
819: AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool)
820:
821: dnl Checks for library functions
822: dnl This check is just for making later checks link with libm.
823: dnl using sin here is no good idea since it is built-into gcc and typechecked
824: AC_CHECK_LIB(m,asin)
825: AC_CHECK_LIB(dl,dlopen)
826: dnl check for libffi 2.x
827: AC_CHECK_LIB(ffi,ffi_call)
828: if test $ac_cv_lib_ffi_ffi_call = yes
829: then
830: LIBFFIFLAG="true"
831: FFCALLFLAG="false"
832: OLDCALLFLAG="false"
833: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
834: else
835: dnl check for ffcall libraries
836: dnl unfortunately, these four calls are separated out into a library each.
837: AC_CHECK_LIB(avcall,__builtin_avcall)
838: AC_CHECK_LIB(callback,__vacall_r)
839: AC_CHECK_LIB(vacall,vacall)
840: AC_CHECK_LIB(trampoline,alloc_trampoline)
841: LIBFFIFLAG="false"
842: FFCALLFLAG="false"
843: OLDCALLFLAG="true"
844: 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])
845: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
846: fi
847: AC_SUBST(LIBFFIFLAG)
848: AC_SUBST(FFCALLFLAG)
849: AC_SUBST(OLDCALLFLAG)
850: if test "$host_os" != "nextstep3"
851: then
852: AC_FUNC_MEMCMP
853: fi
854: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
855: AC_FUNC_FSEEKO
856: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
857: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
858: AC_DECL_SYS_SIGLIST
859: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
860: AC_CHECK_FUNCS(expm1 log1p)
861: AC_REPLACE_FUNCS(rint ecvt)
862: dnl No check for select, because our replacement is no good under
863: dnl anything but DOS
864: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
865: AC_FUNC_FNMATCH
866: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
867: AC_CHECK_FUNCS(mmap sysconf getpagesize)
868: AM_PATH_LISPDIR
869:
870: kernel_fi=kernl${vwordsize}${bytesex}.fi
871: include_fi=kernl${wordsize}${bytesex}${EC}.fi
872: AC_SUBST(kernel_fi)
873: AC_SUBST(include_fi)
874:
875: #this breaks bindists
876: #dnl replace srource directory by absolute value
877: #if test $srcdir = "."; then srcdir=`pwd`
878: #fi
879:
880: AC_SUBST(machine)
881: AC_CONFIG_FILES([
882: Makefile
883: Makedist
884: gforthmi
885: vmgen
886: machpc.fs
887: envos.fs
888: engine/Makefile
889: engine/libcc.h
890: doc/version.texi
891: build-ec ])
892: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
893: chmod +x gforthmi
894: chmod +x vmgen
895: chmod +x build-ec
896: test -d kernel||mkdir kernel
897: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
898: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]])
899: AC_OUTPUT
900:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>