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

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