[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 : pazsan 1.160 #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 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 : pazsan 1.164 AC_INIT([gforth],[0.6.2-20060527],[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 : pazsan 1.160 UPDATED="April 09, 2006"
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 : pazsan 1.167 AC_ARG_ENABLE(ec,
101 :     AC_HELP_STRING([--enable-ec],
102 : pazsan 1.168 [ Build gforth for systems without OS.]),
103 : pazsan 1.167 ,enable_ec=no)
104 :     if test "$enable_ec" = "yes"; then
105 : pazsan 1.168 echo "defining standalone system"
106 :     AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
107 : pazsan 1.167 EC_MODE="true"
108 :     else
109 : pazsan 1.168 echo "defining hosted system"
110 : pazsan 1.167 EC_MODE="false"
111 :     fi
112 :    
113 : anton 1.104 #variables mentioned in INSTALL
114 : anton 1.123 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
115 : anton 1.104 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
116 : 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).])
117 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
118 :     AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
119 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
120 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
121 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
122 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
123 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
124 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
125 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
126 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
127 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
128 : anton 1.166 AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
129 : anton 1.82
130 : anton 1.96 #set up feature test macros, so the tests get them right:
131 :     # turn on all POSIX, SUSv3, and GNU features if available
132 : anton 1.97 AC_GNU_SOURCE
133 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
134 :    
135 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
136 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
137 :     dnl but not for _XOPEN_SOURCE)
138 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
139 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
140 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
141 : anton 1.96 # turn on large file support with 64-bit off_t where available
142 : anton 1.105 AC_SYS_LARGEFILE
143 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
144 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
145 : anton 1.96
146 : anton 1.82 #currently we force direct threading this way. Eventually we should
147 :     #setup in the arch and engine files right
148 : anton 1.16
149 : pazsan 1.15 AC_PROG_CC
150 :    
151 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
152 : pazsan 1.9
153 : pazsan 1.15 AC_SUBST(CC)
154 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
155 : pazsan 1.167 AC_SUBST(EC_MODE)
156 : anton 1.7
157 : pazsan 1.128 AC_MSG_CHECKING(make type)
158 : pazsan 1.155 make_type=`make -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
159 : pazsan 1.128
160 :     GNUMAKE='#'
161 :     test "$make_type" = "GNU Make" && GNUMAKE=''
162 :    
163 :     AC_MSG_RESULT($make_type)
164 :    
165 :     AC_SUBST(GNUMAKE)
166 :    
167 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
168 :     OLDLDFLAGS=$LDFLAGS
169 :     LDFLAGS="$LDFLAGS -export-dynamic"
170 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
171 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
172 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
173 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
174 :     AC_MSG_RESULT($ac_export_dynamic)
175 :    
176 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
177 :     #gforth will run; the system on which configure will run is the `build'
178 :     AC_CANONICAL_HOST
179 :     case "$host_cpu" in
180 : anton 1.136 arm*)
181 :     machine=arm
182 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
183 :     if test -z $no_dynamic_default; then
184 :     no_dynamic_default=1
185 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
186 :     fi
187 :     ;;
188 : anton 1.1 hppa*)
189 : anton 1.34 machine=hppa
190 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
191 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
192 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
193 :     LDFLAGS="$LDFLAGS -Xlinker -N"
194 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
195 : anton 1.1 ;;
196 :     sparc*)
197 : anton 1.34 machine=sparc
198 : anton 1.1 ;;
199 : anton 1.31 i386)
200 : anton 1.34 machine=386
201 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
202 : anton 1.31 ;;
203 :     i486)
204 : anton 1.34 machine=386
205 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
206 :     ;;
207 : anton 1.77 i*86)
208 : anton 1.34 machine=386
209 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
210 : pazsan 1.56 CFLAGS_1="$CFLAGS"
211 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
212 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
213 : anton 1.1 ;;
214 : anton 1.133 x86_64)
215 :     machine=amd64
216 :     ;;
217 : anton 1.136 ia64*)
218 :     machine=ia64
219 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
220 :     test "$skipcode" || skipcode="nop.i 0"
221 :     #".skip 16" passes the test below,
222 :     # but gives an assembler error in engine
223 :     ;;
224 : pazsan 1.26 m68k)
225 : anton 1.34 machine=m68k
226 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
227 :     if test "$host_os" = "nextstep3"
228 :     then
229 : pazsan 1.87 AC_LIBOBJ(termios)
230 : pazsan 1.32 fi
231 : pazsan 1.26 ;;
232 : anton 1.1 mips*)
233 : anton 1.34 machine=mips
234 : anton 1.92 #dynamic native code has the following problems on MIPS:
235 :     #
236 :     #1) J/JAL seems relocatable, but is are only
237 :     #relocatable within a 256MB-segment. While we try to
238 :     #get the linker to arrange this, there is no guarantee
239 :     #that this will succeed (and if the user uses a lot of
240 :     #memory, it is likely to fail).
241 :     #
242 :     #2) The way we generate dynamic native code may
243 :     #violate MIPS architectural restrictions (in
244 :     #particular, the delay slots of LW, MFLO, etc.)
245 :     #
246 :     #Therefore we disable dynamic native code by default:
247 : anton 1.136 if test -z $no_dynamic_default; then
248 :     no_dynamic_default=1
249 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
250 :     fi
251 : anton 1.1 ;;
252 : pazsan 1.9 alpha*)
253 : anton 1.34 machine=alpha
254 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
255 :     CFLAGS="$CFLAGS -mieee"
256 : pazsan 1.9 ;;
257 : anton 1.69 power*|rs6000)
258 : anton 1.34 machine=power
259 : anton 1.46 $srcdir/mkinstalldirs arch/power
260 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
261 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
262 : anton 1.165 test x$ac_cv_sizeof_long_long = x &&
263 :     ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
264 :     ac_cv_sizeof_long_long=0
265 : anton 1.31 ;;
266 : anton 1.1 *)
267 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
268 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
269 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
270 : anton 1.34 machine=generic
271 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
272 : anton 1.136 if test -z $no_dynamic_default; then
273 :     no_dynamic_default=1
274 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
275 :     fi
276 : anton 1.1 esac
277 : anton 1.10 AC_SUBST(host)
278 : anton 1.151
279 :     test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
280 :     AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
281 :     [number of registers in the default stack cache state for gforth-fast and gforth-native])
282 : pazsan 1.146
283 :     if test "${enable_force_ll+set}" = set; then
284 :     ac_includes_default="$ac_includes_default
285 :     #include \"arch/generic/128bit.h\""
286 :     fi
287 : anton 1.103
288 :     dnl the following macro produces a warning with autoconf-2.1
289 :     AC_CHECK_SIZEOF(char *)
290 :     case "$ac_cv_sizeof_char_p" in
291 :     2)
292 :     wordsize=16
293 :     ;;
294 :     4)
295 :     wordsize=32
296 :     ;;
297 :     8)
298 :     wordsize=64
299 :     ;;
300 :     esac
301 :    
302 :     AC_CHECK_SIZEOF(char)
303 :     AC_CHECK_SIZEOF(short)
304 :     AC_CHECK_SIZEOF(int)
305 :     AC_CHECK_SIZEOF(long)
306 :     AC_CHECK_SIZEOF(long long)
307 :     AC_CHECK_SIZEOF(intptr_t)
308 :     AC_CHECK_SIZEOF(int128_t)
309 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
310 : anton 1.103
311 :     AC_MSG_CHECKING([for a C type for cells])
312 :     ac_cv_int_type_cell=none
313 :     case "$ac_cv_sizeof_char_p" in
314 :     $ac_cv_sizeof_int)
315 :     ac_cv_int_type_cell=int
316 :     ;;
317 :     $ac_cv_sizeof_short)
318 :     ac_cv_int_type_cell=short
319 :     ;;
320 :     $ac_cv_sizeof_char)
321 :     ac_cv_int_type_cell=char
322 :     ;;
323 :     $ac_cv_sizeof_long)
324 :     ac_cv_int_type_cell=long
325 :     ;;
326 :     $ac_cv_sizeof_long_long)
327 :     ac_cv_int_type_cell="long long"
328 :     ;;
329 :     $ac_cv_sizeof_intptr_t)
330 :     ac_cv_int_type_cell="intptr_t"
331 :     ;;
332 :     $ac_cv_sizeof_int128_t)
333 :     ac_cv_int_type_cell="int128_t"
334 :     ;;
335 :     esac
336 :     AC_MSG_RESULT($ac_cv_int_type_cell)
337 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
338 :    
339 : pazsan 1.153 AC_MSG_CHECKING([for a C type for wydes])
340 :     ac_cv_wyde_type_cell=none
341 :     case 2 in
342 :     $ac_cv_sizeof_int)
343 :     ac_cv_wyde_type_cell=int
344 :     ;;
345 :     $ac_cv_sizeof_short)
346 :     ac_cv_wyde_type_cell=short
347 :     ;;
348 :     $ac_cv_sizeof_char)
349 :     ac_cv_wyde_type_cell=char
350 :     ;;
351 :     $ac_cv_sizeof_long)
352 :     ac_cv_wyde_type_cell=long
353 :     ;;
354 :     $ac_cv_sizeof_long_long)
355 :     ac_cv_wyde_type_cell="long long"
356 :     ;;
357 :     $ac_cv_sizeof_intptr_t)
358 :     ac_cv_wyde_type_cell="intptr_t"
359 :     ;;
360 :     $ac_cv_sizeof_int128_t)
361 :     ac_cv_wyde_type_cell="int128_t"
362 :     ;;
363 :     esac
364 :     AC_MSG_RESULT($ac_cv_wyde_type_cell)
365 :     AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
366 :    
367 :     AC_MSG_CHECKING([for a C type for tetrabytes])
368 :     ac_cv_tetrabyte_type_cell=none
369 :     case 4 in
370 :     $ac_cv_sizeof_int)
371 :     ac_cv_tetrabyte_type_cell=int
372 :     ;;
373 :     $ac_cv_sizeof_short)
374 :     ac_cv_tetrabyte_type_cell=short
375 :     ;;
376 :     $ac_cv_sizeof_char)
377 :     ac_cv_tetrabyte_type_cell=char
378 :     ;;
379 :     $ac_cv_sizeof_long)
380 :     ac_cv_tetrabyte_type_cell=long
381 :     ;;
382 :     $ac_cv_sizeof_long_long)
383 :     ac_cv_tetrabyte_type_cell="long long"
384 :     ;;
385 :     $ac_cv_sizeof_intptr_t)
386 :     ac_cv_tetrabyte_type_cell="intptr_t"
387 :     ;;
388 :     $ac_cv_sizeof_int128_t)
389 :     ac_cv_tetrabyte_type_cell="int128_t"
390 :     ;;
391 :     esac
392 :     AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
393 :     AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
394 :    
395 : anton 1.103 AC_MSG_CHECKING([for a C type for double-cells])
396 :     ac_cv_int_type_double_cell=none
397 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
398 :     $ac_cv_sizeof_short)
399 :     ac_cv_int_type_double_cell=short
400 :     ;;
401 :     $ac_cv_sizeof_int)
402 :     ac_cv_int_type_double_cell=int
403 :     ;;
404 :     $ac_cv_sizeof_long)
405 :     ac_cv_int_type_double_cell=long
406 :     ;;
407 :     $ac_cv_sizeof_long_long)
408 :     ac_cv_int_type_double_cell="long long"
409 :     ;;
410 :     $ac_cv_sizeof_intptr_t)
411 :     ac_cv_int_type_double_cell="intptr_t"
412 :     ;;
413 :     $ac_cv_sizeof_int128_t)
414 :     ac_cv_int_type_double_cell="int128_t"
415 :     ;;
416 :     esac
417 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
418 : pazsan 1.144
419 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
420 :     ac_cv_int_type_double_ucell=none
421 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
422 :     $ac_cv_sizeof_short)
423 :     ac_cv_int_type_double_ucell="unsigned short"
424 :     ;;
425 :     $ac_cv_sizeof_int)
426 :     ac_cv_int_type_double_ucell="unsigned int"
427 :     ;;
428 :     $ac_cv_sizeof_long)
429 :     ac_cv_int_type_double_ucell="unsigned long"
430 :     ;;
431 :     $ac_cv_sizeof_long_long)
432 :     ac_cv_int_type_double_ucell="unsigned long long"
433 :     ;;
434 :     $ac_cv_sizeof_intptr_t)
435 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
436 :     ;;
437 :     $ac_cv_sizeof_uint128_t)
438 :     ac_cv_int_type_double_ucell="uint128_t"
439 :     ;;
440 :     esac
441 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
442 :    
443 :     if test "$ac_cv_int_type_double_cell" = none || \
444 :     test "$ac_cv_int_type_double_ucell" = none
445 :     then
446 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
447 :     AC_LIBOBJ(dblsub)
448 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
449 :     else
450 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
451 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
452 : anton 1.103 fi
453 :    
454 :     AC_TYPE_OFF_T
455 :     AC_CHECK_SIZEOF(off_t)
456 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
457 :     ac_small_off_t=$?
458 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
459 : anton 1.1
460 : anton 1.109 ENGINE_FLAGS=
461 :     AC_SUBST(ENGINE_FLAGS)
462 :    
463 :     # Try if GCC understands -fno-gcse
464 :    
465 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
466 :     CFLAGS_1="$CFLAGS"
467 :     CFLAGS="$CFLAGS -fno-gcse"
468 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
469 :     CFLAGS="$CFLAGS_1"
470 :     AC_MSG_RESULT($ac_nogcse)
471 :    
472 :     # Try if GCC understands -fno-strict-aliasing
473 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
474 :     CFLAGS_1="$CFLAGS"
475 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
476 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
477 :     CFLAGS="$CFLAGS_1"
478 :     AC_MSG_RESULT($ac_nostrictaliasing)
479 :    
480 : anton 1.123 # Try if GCC understands -fno-crossjumping
481 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
482 : pazsan 1.88 CFLAGS_1="$CFLAGS"
483 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
484 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
485 : anton 1.109 CFLAGS="$CFLAGS_1"
486 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
487 : pazsan 1.88
488 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
489 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
490 :     CFLAGS_1="$CFLAGS"
491 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
492 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
493 :     CFLAGS="$CFLAGS_1"
494 :     AC_MSG_RESULT($ac_noreorder_blocks)
495 :    
496 : anton 1.130 # Try if GCC understands __attribute__((unused))
497 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
498 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
499 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
500 :     AC_MSG_RESULT($MAYBE_UNUSED)
501 :    
502 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
503 : anton 1.61 AC_SUBST(asm_fs)
504 :    
505 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
506 : anton 1.61 AC_SUBST(disasm_fs)
507 :    
508 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
509 : anton 1.114
510 : pazsan 1.39 case "$host_os" in
511 : pazsan 1.157 *win32*)
512 :     # !!!FIXME!!! problems with cygwin and ';' as path separator
513 : anton 1.108 DIRSEP="\\\\"
514 : anton 1.127 PATHSEP=";"
515 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
516 :     # handling of .com files.
517 :     #$COMSPEC contains the name of the Windows shell;
518 :     # the ./ is there, because the bash does not recognize
519 :     # absolute DOS filenames
520 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
521 : pazsan 1.39 ;;
522 : anton 1.97 *darwin*)
523 :     #Darwin uses some funny preprocessor by default; eliminate it:
524 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
525 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
526 : anton 1.98 DIRSEP="/"
527 : anton 1.127 PATHSEP=":"
528 : anton 1.141 DEFAULTSYSTEMPREFIX=""
529 : anton 1.98 ;;
530 : pazsan 1.39 *)
531 : pazsan 1.88 DIRSEP="/"
532 : anton 1.127 PATHSEP=":"
533 : anton 1.141 DEFAULTSYSTEMPREFIX=""
534 : pazsan 1.39 ;;
535 :     esac
536 : pazsan 1.88 AC_SUBST(DIRSEP)
537 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
538 : anton 1.127 AC_SUBST(PATHSEP)
539 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
540 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
541 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
542 : pazsan 1.39
543 : anton 1.170 #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
544 :     AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t $@])
545 :    
546 : anton 1.1 dnl Now a little support for DOS/DJGCC
547 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
548 : anton 1.170 GFORTH_EXE=$MASSAGE_EXE
549 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
550 : anton 1.170 GFORTHFAST_EXE=$MASSAGE_EXE
551 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
552 :     GFORTHITC_EXE=""
553 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
554 :     GFORTHDITC_EXE=""
555 : anton 1.27
556 :     AC_SUBST(FORTHSIZES)
557 : anton 1.24
558 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
559 :     dnl then
560 :     dnl PEEPHOLEFLAG="true"
561 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
562 :     dnl else
563 :     dnl PEEPHOLEFLAG="false"
564 :     dnl fi
565 :     PEEPHOLEFLAG="true"
566 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
567 :    
568 : anton 1.1 dnl copy commands for systems that don't have links
569 : pazsan 1.29 AC_SUBST(LINK_KERNL)
570 :     LINK_KERNL=""
571 : anton 1.1
572 :     #if test $host_os=dos
573 :     #then
574 :     # echo Configuring for DOS!!!
575 :     # MAKE_EXE="coff2exe gforth"
576 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
577 : anton 1.1 #fi
578 :    
579 :     dnl the following macro produces a warning with autoconf-2.1
580 :     AC_C_BIGENDIAN
581 : pazsan 1.23 AC_SUBST(KERNEL)
582 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
583 :     if test $ac_cv_c_bigendian = yes; then
584 :     bytesex=b
585 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
586 : anton 1.1 else
587 :     bytesex=l
588 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
589 : anton 1.1 fi
590 :    
591 : anton 1.91 #check how to do asm(".skip 16")
592 : anton 1.169 #echo "CFLAGS=$CFLAGS"
593 :     #echo "ac_link=$ac_link"
594 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
595 : anton 1.136 if test -z "$skipcode"; then
596 : anton 1.148 skipcode=no
597 :     CFLAGS_1="$CFLAGS"
598 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
599 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
600 :     do
601 : anton 1.91 AC_TRY_RUN(
602 : anton 1.136 [int foo(int,int,int);
603 : anton 1.91 main()
604 :     {
605 : anton 1.136 exit(foo(0,0,0)!=16);
606 : anton 1.91 }
607 : anton 1.136 int foo(int x, int y, int z)
608 : anton 1.91 {
609 : anton 1.136 static void *labels[]={&&label1, &&label2};
610 : anton 1.91 if (x) {
611 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
612 : anton 1.91 label1:
613 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
614 : anton 1.136 label2: ;
615 :     }
616 :     {
617 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
618 :     return labels[1]-labels[0];
619 : anton 1.91 }
620 : anton 1.136 }]
621 : anton 1.92 ,skipcode=$i; break
622 :     ,,)
623 : anton 1.136 done
624 : anton 1.148 CFLAGS=$CFLAGS_1
625 : anton 1.136 fi
626 : anton 1.92 AC_MSG_RESULT($skipcode)
627 :     if test "$skipcode" = no
628 :     then
629 : anton 1.136 if test -z $no_dynamic_default; then
630 :     no_dynamic_default=1
631 :     AC_MSG_WARN(Disabling default dynamic native code generation)
632 :     fi
633 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
634 :     else
635 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
636 :     fi
637 : anton 1.91
638 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
639 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
640 : anton 1.91
641 : anton 1.1 dnl Checks for programs.
642 :     AC_PROG_LN_S
643 : anton 1.95 AC_PROG_INSTALL
644 : pazsan 1.163 AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
645 : anton 1.1
646 :     dnl Checks for library functions
647 : anton 1.2 dnl This check is just for making later checks link with libm.
648 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
649 :     AC_CHECK_LIB(m,asin)
650 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
651 : pazsan 1.152 dnl check for libffi 2.x
652 :     AC_CHECK_LIB(ffi,ffi_call)
653 :     if test $ac_cv_lib_ffi_ffi_call = yes
654 :     then
655 :     LIBFFIFLAG="true"
656 :     FFCALLFLAG="false"
657 :     OLDCALLFLAG="false"
658 :     AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
659 :     else
660 : pazsan 1.124 dnl check for ffcall libraries
661 :     dnl unfortunately, these four calls are separated out into a library each.
662 :     AC_CHECK_LIB(avcall,__builtin_avcall)
663 :     AC_CHECK_LIB(callback,__vacall_r)
664 :     AC_CHECK_LIB(vacall,vacall)
665 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
666 : pazsan 1.152 LIBFFIFLAG="false"
667 : anton 1.125 FFCALLFLAG="false"
668 : pazsan 1.129 OLDCALLFLAG="true"
669 :     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])
670 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
671 : pazsan 1.152 fi
672 :     AC_SUBST(LIBFFIFLAG)
673 : anton 1.125 AC_SUBST(FFCALLFLAG)
674 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
675 : pazsan 1.32 if test "$host_os" != "nextstep3"
676 :     then
677 :     AC_FUNC_MEMCMP
678 :     fi
679 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
680 : anton 1.97 AC_FUNC_FSEEKO
681 :     AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
682 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
683 : anton 1.19 AC_DECL_SYS_SIGLIST
684 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
685 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
686 :     AC_REPLACE_FUNCS(rint ecvt)
687 : anton 1.1 dnl No check for select, because our replacement is no good under
688 :     dnl anything but DOS
689 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
690 : anton 1.63 AC_FUNC_FNMATCH
691 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
692 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
693 : anton 1.34 AM_PATH_LISPDIR
694 : anton 1.1
695 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
696 :     AC_SUBST(kernel_fi)
697 : jwilke 1.50
698 : anton 1.76 #this breaks bindists
699 :     #dnl replace srource directory by absolute value
700 :     #if test $srcdir = "."; then srcdir=`pwd`
701 :     #fi
702 : anton 1.8
703 : anton 1.34 AC_SUBST(machine)
704 : anton 1.95 AC_CONFIG_FILES([
705 : anton 1.31 Makefile
706 : pazsan 1.45 Makedist
707 : anton 1.43 gforthmi
708 : anton 1.80 vmgen
709 : pazsan 1.79 machpc.fs
710 : pazsan 1.159 envos.fs
711 : anton 1.35 engine/Makefile
712 : pazsan 1.161 doc/version.texi
713 :     build-ec ])
714 : anton 1.95 AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
715 : anton 1.43 chmod +x gforthmi
716 : anton 1.80 chmod +x vmgen
717 : pazsan 1.162 chmod +x build-ec
718 : anton 1.95 test -d kernel||mkdir kernel]],[[]])
719 :     AC_OUTPUT
720 : anton 1.44

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