[gforth] / gforth / configure.in  

gforth: gforth/configure.in


1 : anton 1.1 dnl Process this file with autoconf to produce a configure script.
2 : anton 1.20
3 : anton 1.154 #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc.
4 : anton 1.20
5 :     #This file is part of Gforth.
6 :    
7 :     #Gforth is free software; you can redistribute it and/or
8 :     #modify it under the terms of the GNU General Public License
9 :     #as published by the Free Software Foundation; either version 2
10 :     #of the License, or (at your option) any later version.
11 :    
12 :     #This program is distributed in the hope that it will be useful,
13 :     #but WITHOUT ANY WARRANTY; without even the implied warranty of
14 :     #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
15 :     #GNU General Public License for more details.
16 :    
17 :     #You should have received a copy of the GNU General Public License
18 :     #along with this program; if not, write to the Free Software
19 : anton 1.74 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20 : anton 1.20
21 : anton 1.121
22 : anton 1.34 dnl We use some automake macros here,
23 :     dnl but don't use automake for creating Makefile.in
24 : anton 1.136 AC_INIT([gforth],[0.6.2-20030910],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
25 : anton 1.113 AC_PREREQ(2.54)
26 : anton 1.47 #snapshots have numbers major.minor.release-YYYYMMDD
27 : anton 1.92 #note that lexicographic ordering must be heeded.
28 : anton 1.47 #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
29 : anton 1.136 UPDATED="September 10, 2003"
30 : anton 1.84 AC_SUBST(UPDATED)
31 : anton 1.94 AC_CONFIG_HEADERS(engine/config.h)
32 : anton 1.14
33 : anton 1.121 #suppress the "-g -O2" default
34 :     test "$CFLAGS" || CFLAGS=-O2
35 :    
36 : anton 1.1 AC_ARG_ENABLE(force-reg,
37 : anton 1.149 AC_HELP_STRING([--enable-force-reg],
38 :     [ Use explicit register declarations if they appear in
39 : anton 1.1 the machine.h file. This can cause a good speedup,
40 :     but also incorrect code with some gcc versions on
41 : anton 1.149 some processors (default disabled).]),
42 :     ,enable_force_reg=no)
43 :     test "$enable_force_reg" = "no"||
44 :     AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)])
45 :    
46 : pazsan 1.145 AC_ARG_ENABLE(force-ll,
47 : anton 1.149 AC_HELP_STRING([--enable-force-ll],
48 :     [ Use explicit long long declarations if they appear in
49 : pazsan 1.145 the machine.h file. This can cause a good speedup,
50 :     but also incorrect code with some gcc versions on
51 : anton 1.149 some processors (default disabled).]),
52 :     ,enable_force_ll=no)
53 :     test "$enable_force_ll" = "no"||
54 :     AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)])
55 : anton 1.147
56 :     AC_ARG_ENABLE(gcc-pr15242-workaround,
57 :     AC_HELP_STRING([--disable-gcc-pr15242-workaround],[Disables
58 :     dynamic code generation on some versions of gcc
59 :     (slowdown~2 on Athlon) and causes slower building
60 :     of gforth (but gforth speedups) on others.
61 :     (default enabled)]),
62 :     ,enable_gcc_pr15242_workaround=yes)
63 :     test "$enable_gcc_pr15242_workaround" = "no"||
64 :     AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
65 :     generation on gccs affected by PR15242])
66 :    
67 : pazsan 1.150 AC_ARG_ENABLE(force-cdiv,
68 :     AC_HELP_STRING([--enable-force-cdiv],
69 :     [ Use the native C division - symmetric - instead of
70 :     floored division (default disabled).]),
71 :     ,enable_force_cdiv=no)
72 :     test "$enable_force_cdiv" = "no"||
73 :     AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
74 :    
75 : anton 1.149 AC_SUBST(PROFEXES)
76 :     AC_SUBST(PROFOBJS)
77 : anton 1.135 AC_ARG_ENABLE(prof,
78 : anton 1.149 AC_HELP_STRING([--enable-prof],
79 :     [ Build gforth-prof, which outputs frequently occuring
80 :     sequences of primitives.]),
81 :     ,enable_prof=no)
82 :     if test "$enable_prof" = "no"; then
83 :     PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o"
84 :     fi
85 : anton 1.1
86 : pazsan 1.9 AC_ARG_WITH(debug,
87 : pazsan 1.122 [ --with-debug specifies option -g to compile with debug info
88 :     --without-debug omits the -g switch and creates smaller images on
89 :     machines where "strip" has problems with gcc style
90 :     debugging informations.],
91 : pazsan 1.9 if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
92 : pazsan 1.122
93 : anton 1.104 dnl PEEPHOLE="yes"
94 :     dnl AC_ARG_WITH(peephole,
95 :     dnl [ --with-peephole Enable peephole optimization (default)
96 :     dnl --without-peephole disables peephole optimization. Creates smaller,
97 :     dnl but slower images.],
98 :     dnl PEEPHOLE="$withval")
99 :    
100 :     #variables mentioned in INSTALL
101 : anton 1.123 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
102 : anton 1.104 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
103 : anton 1.151 AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
104 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
105 :     AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
106 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
107 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
108 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
109 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
110 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
111 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
112 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
113 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
114 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
115 : anton 1.136 AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
116 : anton 1.82
117 : anton 1.96 #set up feature test macros, so the tests get them right:
118 :     # turn on all POSIX, SUSv3, and GNU features if available
119 : anton 1.97 AC_GNU_SOURCE
120 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
121 :    
122 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
123 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
124 :     dnl but not for _XOPEN_SOURCE)
125 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
126 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
127 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
128 : anton 1.96 # turn on large file support with 64-bit off_t where available
129 : anton 1.105 AC_SYS_LARGEFILE
130 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
131 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
132 : anton 1.96
133 : anton 1.82 #currently we force direct threading this way. Eventually we should
134 :     #setup in the arch and engine files right
135 : anton 1.16
136 : pazsan 1.15 AC_PROG_CC
137 :    
138 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
139 : pazsan 1.9
140 : pazsan 1.15 AC_SUBST(CC)
141 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
142 : anton 1.7
143 : pazsan 1.128 AC_MSG_CHECKING(make type)
144 : pazsan 1.155 make_type=`make -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
145 : pazsan 1.128
146 :     GNUMAKE='#'
147 :     test "$make_type" = "GNU Make" && GNUMAKE=''
148 :    
149 :     AC_MSG_RESULT($make_type)
150 :    
151 :     AC_SUBST(GNUMAKE)
152 :    
153 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
154 :     OLDLDFLAGS=$LDFLAGS
155 :     LDFLAGS="$LDFLAGS -export-dynamic"
156 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
157 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
158 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
159 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
160 :     AC_MSG_RESULT($ac_export_dynamic)
161 :    
162 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
163 :     #gforth will run; the system on which configure will run is the `build'
164 :     AC_CANONICAL_HOST
165 :     case "$host_cpu" in
166 : anton 1.136 arm*)
167 :     machine=arm
168 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
169 :     if test -z $no_dynamic_default; then
170 :     no_dynamic_default=1
171 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
172 :     fi
173 :     ;;
174 : anton 1.1 hppa*)
175 : anton 1.34 machine=hppa
176 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
177 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
178 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
179 :     LDFLAGS="$LDFLAGS -Xlinker -N"
180 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
181 : anton 1.1 ;;
182 :     sparc*)
183 : anton 1.34 machine=sparc
184 : anton 1.1 ;;
185 : anton 1.31 i386)
186 : anton 1.34 machine=386
187 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
188 : anton 1.31 ;;
189 :     i486)
190 : anton 1.34 machine=386
191 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
192 :     ;;
193 : anton 1.77 i*86)
194 : anton 1.34 machine=386
195 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
196 : pazsan 1.56 CFLAGS_1="$CFLAGS"
197 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
198 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
199 : anton 1.1 ;;
200 : anton 1.133 x86_64)
201 :     machine=amd64
202 :     ;;
203 : anton 1.136 ia64*)
204 :     machine=ia64
205 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
206 :     test "$skipcode" || skipcode="nop.i 0"
207 :     #".skip 16" passes the test below,
208 :     # but gives an assembler error in engine
209 :     ;;
210 : pazsan 1.26 m68k)
211 : anton 1.34 machine=m68k
212 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
213 :     if test "$host_os" = "nextstep3"
214 :     then
215 : pazsan 1.87 AC_LIBOBJ(termios)
216 : pazsan 1.32 fi
217 : pazsan 1.26 ;;
218 : anton 1.1 mips*)
219 : anton 1.34 machine=mips
220 : anton 1.92 #dynamic native code has the following problems on MIPS:
221 :     #
222 :     #1) J/JAL seems relocatable, but is are only
223 :     #relocatable within a 256MB-segment. While we try to
224 :     #get the linker to arrange this, there is no guarantee
225 :     #that this will succeed (and if the user uses a lot of
226 :     #memory, it is likely to fail).
227 :     #
228 :     #2) The way we generate dynamic native code may
229 :     #violate MIPS architectural restrictions (in
230 :     #particular, the delay slots of LW, MFLO, etc.)
231 :     #
232 :     #Therefore we disable dynamic native code by default:
233 : anton 1.136 if test -z $no_dynamic_default; then
234 :     no_dynamic_default=1
235 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
236 :     fi
237 : anton 1.1 ;;
238 : pazsan 1.9 alpha*)
239 : anton 1.34 machine=alpha
240 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
241 :     CFLAGS="$CFLAGS -mieee"
242 : pazsan 1.9 ;;
243 : anton 1.69 power*|rs6000)
244 : anton 1.34 machine=power
245 : anton 1.46 $srcdir/mkinstalldirs arch/power
246 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
247 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
248 : anton 1.104 test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
249 : anton 1.31 ;;
250 : anton 1.1 *)
251 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
252 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
253 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
254 : anton 1.34 machine=generic
255 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
256 : anton 1.136 if test -z $no_dynamic_default; then
257 :     no_dynamic_default=1
258 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
259 :     fi
260 : anton 1.1 esac
261 : anton 1.10 AC_SUBST(host)
262 : anton 1.151
263 :     test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
264 :     AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
265 :     [number of registers in the default stack cache state for gforth-fast and gforth-native])
266 : pazsan 1.146
267 :     if test "${enable_force_ll+set}" = set; then
268 :     ac_includes_default="$ac_includes_default
269 :     #include \"arch/generic/128bit.h\""
270 :     fi
271 : anton 1.103
272 :     dnl the following macro produces a warning with autoconf-2.1
273 :     AC_CHECK_SIZEOF(char *)
274 :     case "$ac_cv_sizeof_char_p" in
275 :     2)
276 :     wordsize=16
277 :     ;;
278 :     4)
279 :     wordsize=32
280 :     ;;
281 :     8)
282 :     wordsize=64
283 :     ;;
284 :     esac
285 :    
286 :     AC_CHECK_SIZEOF(char)
287 :     AC_CHECK_SIZEOF(short)
288 :     AC_CHECK_SIZEOF(int)
289 :     AC_CHECK_SIZEOF(long)
290 :     AC_CHECK_SIZEOF(long long)
291 :     AC_CHECK_SIZEOF(intptr_t)
292 :     AC_CHECK_SIZEOF(int128_t)
293 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
294 : anton 1.103
295 :     AC_MSG_CHECKING([for a C type for cells])
296 :     ac_cv_int_type_cell=none
297 :     case "$ac_cv_sizeof_char_p" in
298 :     $ac_cv_sizeof_int)
299 :     ac_cv_int_type_cell=int
300 :     ;;
301 :     $ac_cv_sizeof_short)
302 :     ac_cv_int_type_cell=short
303 :     ;;
304 :     $ac_cv_sizeof_char)
305 :     ac_cv_int_type_cell=char
306 :     ;;
307 :     $ac_cv_sizeof_long)
308 :     ac_cv_int_type_cell=long
309 :     ;;
310 :     $ac_cv_sizeof_long_long)
311 :     ac_cv_int_type_cell="long long"
312 :     ;;
313 :     $ac_cv_sizeof_intptr_t)
314 :     ac_cv_int_type_cell="intptr_t"
315 :     ;;
316 :     $ac_cv_sizeof_int128_t)
317 :     ac_cv_int_type_cell="int128_t"
318 :     ;;
319 :     esac
320 :     AC_MSG_RESULT($ac_cv_int_type_cell)
321 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
322 :    
323 : pazsan 1.153 AC_MSG_CHECKING([for a C type for wydes])
324 :     ac_cv_wyde_type_cell=none
325 :     case 2 in
326 :     $ac_cv_sizeof_int)
327 :     ac_cv_wyde_type_cell=int
328 :     ;;
329 :     $ac_cv_sizeof_short)
330 :     ac_cv_wyde_type_cell=short
331 :     ;;
332 :     $ac_cv_sizeof_char)
333 :     ac_cv_wyde_type_cell=char
334 :     ;;
335 :     $ac_cv_sizeof_long)
336 :     ac_cv_wyde_type_cell=long
337 :     ;;
338 :     $ac_cv_sizeof_long_long)
339 :     ac_cv_wyde_type_cell="long long"
340 :     ;;
341 :     $ac_cv_sizeof_intptr_t)
342 :     ac_cv_wyde_type_cell="intptr_t"
343 :     ;;
344 :     $ac_cv_sizeof_int128_t)
345 :     ac_cv_wyde_type_cell="int128_t"
346 :     ;;
347 :     esac
348 :     AC_MSG_RESULT($ac_cv_wyde_type_cell)
349 :     AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
350 :    
351 :     AC_MSG_CHECKING([for a C type for tetrabytes])
352 :     ac_cv_tetrabyte_type_cell=none
353 :     case 4 in
354 :     $ac_cv_sizeof_int)
355 :     ac_cv_tetrabyte_type_cell=int
356 :     ;;
357 :     $ac_cv_sizeof_short)
358 :     ac_cv_tetrabyte_type_cell=short
359 :     ;;
360 :     $ac_cv_sizeof_char)
361 :     ac_cv_tetrabyte_type_cell=char
362 :     ;;
363 :     $ac_cv_sizeof_long)
364 :     ac_cv_tetrabyte_type_cell=long
365 :     ;;
366 :     $ac_cv_sizeof_long_long)
367 :     ac_cv_tetrabyte_type_cell="long long"
368 :     ;;
369 :     $ac_cv_sizeof_intptr_t)
370 :     ac_cv_tetrabyte_type_cell="intptr_t"
371 :     ;;
372 :     $ac_cv_sizeof_int128_t)
373 :     ac_cv_tetrabyte_type_cell="int128_t"
374 :     ;;
375 :     esac
376 :     AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
377 :     AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
378 :    
379 : anton 1.103 AC_MSG_CHECKING([for a C type for double-cells])
380 :     ac_cv_int_type_double_cell=none
381 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
382 :     $ac_cv_sizeof_short)
383 :     ac_cv_int_type_double_cell=short
384 :     ;;
385 :     $ac_cv_sizeof_int)
386 :     ac_cv_int_type_double_cell=int
387 :     ;;
388 :     $ac_cv_sizeof_long)
389 :     ac_cv_int_type_double_cell=long
390 :     ;;
391 :     $ac_cv_sizeof_long_long)
392 :     ac_cv_int_type_double_cell="long long"
393 :     ;;
394 :     $ac_cv_sizeof_intptr_t)
395 :     ac_cv_int_type_double_cell="intptr_t"
396 :     ;;
397 :     $ac_cv_sizeof_int128_t)
398 :     ac_cv_int_type_double_cell="int128_t"
399 :     ;;
400 :     esac
401 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
402 : pazsan 1.144
403 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
404 :     ac_cv_int_type_double_ucell=none
405 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
406 :     $ac_cv_sizeof_short)
407 :     ac_cv_int_type_double_ucell="unsigned short"
408 :     ;;
409 :     $ac_cv_sizeof_int)
410 :     ac_cv_int_type_double_ucell="unsigned int"
411 :     ;;
412 :     $ac_cv_sizeof_long)
413 :     ac_cv_int_type_double_ucell="unsigned long"
414 :     ;;
415 :     $ac_cv_sizeof_long_long)
416 :     ac_cv_int_type_double_ucell="unsigned long long"
417 :     ;;
418 :     $ac_cv_sizeof_intptr_t)
419 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
420 :     ;;
421 :     $ac_cv_sizeof_uint128_t)
422 :     ac_cv_int_type_double_ucell="uint128_t"
423 :     ;;
424 :     esac
425 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
426 :    
427 :     if test "$ac_cv_int_type_double_cell" = none || \
428 :     test "$ac_cv_int_type_double_ucell" = none
429 :     then
430 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
431 :     AC_LIBOBJ(dblsub)
432 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
433 :     else
434 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
435 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
436 : anton 1.103 fi
437 :    
438 :     AC_TYPE_OFF_T
439 :     AC_CHECK_SIZEOF(off_t)
440 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
441 :     ac_small_off_t=$?
442 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
443 : anton 1.1
444 : anton 1.109 ENGINE_FLAGS=
445 :     AC_SUBST(ENGINE_FLAGS)
446 :    
447 :     # Try if GCC understands -fno-gcse
448 :    
449 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
450 :     CFLAGS_1="$CFLAGS"
451 :     CFLAGS="$CFLAGS -fno-gcse"
452 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
453 :     CFLAGS="$CFLAGS_1"
454 :     AC_MSG_RESULT($ac_nogcse)
455 :    
456 :     # Try if GCC understands -fno-strict-aliasing
457 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
458 :     CFLAGS_1="$CFLAGS"
459 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
460 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
461 :     CFLAGS="$CFLAGS_1"
462 :     AC_MSG_RESULT($ac_nostrictaliasing)
463 :    
464 : anton 1.123 # Try if GCC understands -fno-crossjumping
465 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
466 : pazsan 1.88 CFLAGS_1="$CFLAGS"
467 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
468 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
469 : anton 1.109 CFLAGS="$CFLAGS_1"
470 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
471 : pazsan 1.88
472 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
473 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
474 :     CFLAGS_1="$CFLAGS"
475 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
476 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
477 :     CFLAGS="$CFLAGS_1"
478 :     AC_MSG_RESULT($ac_noreorder_blocks)
479 :    
480 : anton 1.130 # Try if GCC understands __attribute__((unused))
481 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
482 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
483 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
484 :     AC_MSG_RESULT($MAYBE_UNUSED)
485 :    
486 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
487 : anton 1.61 AC_SUBST(asm_fs)
488 :    
489 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
490 : anton 1.61 AC_SUBST(disasm_fs)
491 :    
492 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
493 : anton 1.114
494 : pazsan 1.39 case "$host_os" in
495 : anton 1.107 *win32|cygwin)
496 : anton 1.108 DIRSEP="\\\\"
497 : anton 1.127 PATHSEP=";"
498 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
499 :     # handling of .com files.
500 :     #$COMSPEC contains the name of the Windows shell;
501 :     # the ./ is there, because the bash does not recognize
502 :     # absolute DOS filenames
503 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
504 : pazsan 1.39 ;;
505 : anton 1.97 *darwin*)
506 :     #Darwin uses some funny preprocessor by default; eliminate it:
507 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
508 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
509 : anton 1.98 DIRSEP="/"
510 : anton 1.127 PATHSEP=":"
511 : anton 1.141 DEFAULTSYSTEMPREFIX=""
512 : anton 1.98 ;;
513 : pazsan 1.39 *)
514 : pazsan 1.88 DIRSEP="/"
515 : anton 1.127 PATHSEP=":"
516 : anton 1.141 DEFAULTSYSTEMPREFIX=""
517 : pazsan 1.39 ;;
518 :     esac
519 : pazsan 1.88 AC_SUBST(DIRSEP)
520 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
521 : anton 1.127 AC_SUBST(PATHSEP)
522 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
523 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
524 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
525 : pazsan 1.39
526 : anton 1.1 dnl Now a little support for DOS/DJGCC
527 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
528 :     GFORTH_EXE=""
529 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
530 :     GFORTHFAST_EXE=""
531 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
532 :     GFORTHITC_EXE=""
533 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
534 :     GFORTHDITC_EXE=""
535 : anton 1.27
536 :     AC_SUBST(FORTHSIZES)
537 : anton 1.24
538 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
539 :     dnl then
540 :     dnl PEEPHOLEFLAG="true"
541 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
542 :     dnl else
543 :     dnl PEEPHOLEFLAG="false"
544 :     dnl fi
545 :     PEEPHOLEFLAG="true"
546 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
547 :    
548 : anton 1.1 dnl copy commands for systems that don't have links
549 : pazsan 1.29 AC_SUBST(LINK_KERNL)
550 :     LINK_KERNL=""
551 : anton 1.1
552 :     #if test $host_os=dos
553 :     #then
554 :     # echo Configuring for DOS!!!
555 :     # MAKE_EXE="coff2exe gforth"
556 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
557 : anton 1.1 #fi
558 :    
559 :     dnl the following macro produces a warning with autoconf-2.1
560 :     AC_C_BIGENDIAN
561 : pazsan 1.23 AC_SUBST(KERNEL)
562 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
563 :     if test $ac_cv_c_bigendian = yes; then
564 :     bytesex=b
565 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
566 : anton 1.1 else
567 :     bytesex=l
568 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
569 : anton 1.1 fi
570 :    
571 : anton 1.91 #check how to do asm(".skip 16")
572 : anton 1.148 echo "CFLAGS=$CFLAGS"
573 :     echo "ac_link=$ac_link"
574 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
575 : anton 1.136 if test -z "$skipcode"; then
576 : anton 1.148 skipcode=no
577 :     CFLAGS_1="$CFLAGS"
578 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
579 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
580 :     do
581 : anton 1.91 AC_TRY_RUN(
582 : anton 1.136 [int foo(int,int,int);
583 : anton 1.91 main()
584 :     {
585 : anton 1.136 exit(foo(0,0,0)!=16);
586 : anton 1.91 }
587 : anton 1.136 int foo(int x, int y, int z)
588 : anton 1.91 {
589 : anton 1.136 static void *labels[]={&&label1, &&label2};
590 : anton 1.91 if (x) {
591 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
592 : anton 1.91 label1:
593 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
594 : anton 1.136 label2: ;
595 :     }
596 :     {
597 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
598 :     return labels[1]-labels[0];
599 : anton 1.91 }
600 : anton 1.136 }]
601 : anton 1.92 ,skipcode=$i; break
602 :     ,,)
603 : anton 1.136 done
604 : anton 1.148 CFLAGS=$CFLAGS_1
605 : anton 1.136 fi
606 : anton 1.92 AC_MSG_RESULT($skipcode)
607 :     if test "$skipcode" = no
608 :     then
609 : anton 1.136 if test -z $no_dynamic_default; then
610 :     no_dynamic_default=1
611 :     AC_MSG_WARN(Disabling default dynamic native code generation)
612 :     fi
613 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
614 :     else
615 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
616 :     fi
617 : anton 1.91
618 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
619 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
620 : anton 1.91
621 : anton 1.1 dnl Checks for programs.
622 :     AC_PROG_LN_S
623 : anton 1.95 AC_PROG_INSTALL
624 : anton 1.1
625 :     dnl Checks for library functions
626 : anton 1.2 dnl This check is just for making later checks link with libm.
627 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
628 :     AC_CHECK_LIB(m,asin)
629 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
630 : pazsan 1.152 dnl check for libffi 2.x
631 :     AC_CHECK_LIB(ffi,ffi_call)
632 :     if test $ac_cv_lib_ffi_ffi_call = yes
633 :     then
634 :     LIBFFIFLAG="true"
635 :     FFCALLFLAG="false"
636 :     OLDCALLFLAG="false"
637 :     AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
638 :     else
639 : pazsan 1.124 dnl check for ffcall libraries
640 :     dnl unfortunately, these four calls are separated out into a library each.
641 :     AC_CHECK_LIB(avcall,__builtin_avcall)
642 :     AC_CHECK_LIB(callback,__vacall_r)
643 :     AC_CHECK_LIB(vacall,vacall)
644 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
645 : pazsan 1.152 LIBFFIFLAG="false"
646 : anton 1.125 FFCALLFLAG="false"
647 : pazsan 1.129 OLDCALLFLAG="true"
648 :     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])
649 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
650 : pazsan 1.152 fi
651 :     AC_SUBST(LIBFFIFLAG)
652 : anton 1.125 AC_SUBST(FFCALLFLAG)
653 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
654 : pazsan 1.32 if test "$host_os" != "nextstep3"
655 :     then
656 :     AC_FUNC_MEMCMP
657 :     fi
658 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
659 : anton 1.97 AC_FUNC_FSEEKO
660 :     AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
661 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
662 : anton 1.19 AC_DECL_SYS_SIGLIST
663 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
664 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
665 :     AC_REPLACE_FUNCS(rint ecvt)
666 : anton 1.1 dnl No check for select, because our replacement is no good under
667 :     dnl anything but DOS
668 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
669 : anton 1.63 AC_FUNC_FNMATCH
670 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
671 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
672 : anton 1.34 AM_PATH_LISPDIR
673 : anton 1.1
674 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
675 :     AC_SUBST(kernel_fi)
676 : jwilke 1.50
677 : anton 1.76 #this breaks bindists
678 :     #dnl replace srource directory by absolute value
679 :     #if test $srcdir = "."; then srcdir=`pwd`
680 :     #fi
681 : anton 1.8
682 : anton 1.34 AC_SUBST(machine)
683 : anton 1.95 AC_CONFIG_FILES([
684 : anton 1.31 Makefile
685 : pazsan 1.45 Makedist
686 : anton 1.43 gforthmi
687 : anton 1.80 vmgen
688 : pazsan 1.79 machpc.fs
689 : anton 1.35 engine/Makefile
690 : anton 1.95 doc/version.texi ])
691 :     AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
692 : anton 1.43 chmod +x gforthmi
693 : anton 1.80 chmod +x vmgen
694 : anton 1.95 test -d kernel||mkdir kernel]],[[]])
695 :     AC_OUTPUT
696 : anton 1.44

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