[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 "$enable_force_ll" = "no"||
54 :     AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)])
55 : anton 1.147
56 : pazsan 1.150 AC_ARG_ENABLE(force-cdiv,
57 :     AC_HELP_STRING([--enable-force-cdiv],
58 :     [ Use the native C division - symmetric - instead of
59 :     floored division (default disabled).]),
60 :     ,enable_force_cdiv=no)
61 :     test "$enable_force_cdiv" = "no"||
62 :     AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
63 :    
64 : anton 1.149 AC_SUBST(PROFEXES)
65 :     AC_SUBST(PROFOBJS)
66 : anton 1.135 AC_ARG_ENABLE(prof,
67 : anton 1.149 AC_HELP_STRING([--enable-prof],
68 :     [ Build gforth-prof, which outputs frequently occuring
69 :     sequences of primitives.]),
70 :     ,enable_prof=no)
71 :     if test "$enable_prof" = "no"; then
72 :     PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o"
73 :     fi
74 : anton 1.1
75 : pazsan 1.9 AC_ARG_WITH(debug,
76 : pazsan 1.122 [ --with-debug specifies option -g to compile with debug info
77 :     --without-debug omits the -g switch and creates smaller images on
78 :     machines where "strip" has problems with gcc style
79 :     debugging informations.],
80 : pazsan 1.9 if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
81 : pazsan 1.122
82 : anton 1.104 dnl PEEPHOLE="yes"
83 :     dnl AC_ARG_WITH(peephole,
84 :     dnl [ --with-peephole Enable peephole optimization (default)
85 :     dnl --without-peephole disables peephole optimization. Creates smaller,
86 :     dnl but slower images.],
87 :     dnl PEEPHOLE="$withval")
88 :    
89 : pazsan 1.167 AC_ARG_ENABLE(ec,
90 :     AC_HELP_STRING([--enable-ec],
91 : pazsan 1.168 [ Build gforth for systems without OS.]),
92 : pazsan 1.167 ,enable_ec=no)
93 :     if test "$enable_ec" = "yes"; then
94 : pazsan 1.168 echo "defining standalone system"
95 :     AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
96 : pazsan 1.167 EC_MODE="true"
97 :     else
98 : pazsan 1.168 echo "defining hosted system"
99 : pazsan 1.167 EC_MODE="false"
100 :     fi
101 :    
102 : anton 1.104 #variables mentioned in INSTALL
103 : anton 1.123 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
104 : anton 1.104 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
105 : 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).])
106 : anton 1.173 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)])
107 :    
108 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
109 :     AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
110 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
111 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
112 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
113 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
114 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
115 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
116 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
117 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
118 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
119 : anton 1.166 AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
120 : anton 1.174 AC_ARG_VAR(asmcomment, [assembler comment start string])
121 : anton 1.175 AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
122 : anton 1.82
123 : anton 1.96 #set up feature test macros, so the tests get them right:
124 :     # turn on all POSIX, SUSv3, and GNU features if available
125 : anton 1.97 AC_GNU_SOURCE
126 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
127 :    
128 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
129 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
130 :     dnl but not for _XOPEN_SOURCE)
131 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
132 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
133 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
134 : anton 1.96 # turn on large file support with 64-bit off_t where available
135 : anton 1.105 AC_SYS_LARGEFILE
136 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
137 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
138 : anton 1.96
139 : anton 1.82 #currently we force direct threading this way. Eventually we should
140 :     #setup in the arch and engine files right
141 : anton 1.16
142 : pazsan 1.15 AC_PROG_CC
143 :    
144 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
145 : pazsan 1.9
146 : pazsan 1.15 AC_SUBST(CC)
147 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
148 : pazsan 1.167 AC_SUBST(EC_MODE)
149 : anton 1.7
150 : anton 1.174 #this is used to disable some (not generally essential) part of the
151 :     #Makefile that some makes don't grok. It would be better to test for
152 :     #this specific Makefile feature than the make version.
153 : pazsan 1.128 AC_MSG_CHECKING(make type)
154 : anton 1.174 make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
155 : pazsan 1.128 GNUMAKE='#'
156 :     test "$make_type" = "GNU Make" && GNUMAKE=''
157 :     AC_MSG_RESULT($make_type)
158 :     AC_SUBST(GNUMAKE)
159 :    
160 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
161 :     OLDLDFLAGS=$LDFLAGS
162 :     LDFLAGS="$LDFLAGS -export-dynamic"
163 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
164 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
165 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
166 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
167 :     AC_MSG_RESULT($ac_export_dynamic)
168 :    
169 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
170 :     #gforth will run; the system on which configure will run is the `build'
171 :     AC_CANONICAL_HOST
172 :     case "$host_cpu" in
173 : anton 1.136 arm*)
174 :     machine=arm
175 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
176 : anton 1.175 if test -z $arm_cacheflush; then
177 : anton 1.136 no_dynamic_default=1
178 : anton 1.175 arm_cacheflush=arch/arm/cacheflush0
179 : anton 1.136 AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
180 :     fi
181 : anton 1.175 AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
182 :     AC_LIBOBJ(../$arm_cacheflush)
183 : anton 1.136 ;;
184 : anton 1.1 hppa*)
185 : anton 1.34 machine=hppa
186 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
187 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
188 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
189 :     LDFLAGS="$LDFLAGS -Xlinker -N"
190 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
191 : anton 1.1 ;;
192 :     sparc*)
193 : anton 1.34 machine=sparc
194 : anton 1.1 ;;
195 : anton 1.31 i386)
196 : anton 1.34 machine=386
197 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
198 : anton 1.31 ;;
199 :     i486)
200 : anton 1.34 machine=386
201 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
202 :     ;;
203 : anton 1.77 i*86)
204 : anton 1.34 machine=386
205 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
206 : pazsan 1.56 CFLAGS_1="$CFLAGS"
207 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
208 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
209 : anton 1.1 ;;
210 : anton 1.133 x86_64)
211 :     machine=amd64
212 :     ;;
213 : anton 1.136 ia64*)
214 :     machine=ia64
215 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
216 :     test "$skipcode" || skipcode="nop.i 0"
217 :     #".skip 16" passes the test below,
218 :     # but gives an assembler error in engine
219 :     ;;
220 : pazsan 1.26 m68k)
221 : anton 1.34 machine=m68k
222 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
223 :     if test "$host_os" = "nextstep3"
224 :     then
225 : pazsan 1.87 AC_LIBOBJ(termios)
226 : pazsan 1.32 fi
227 : pazsan 1.26 ;;
228 : anton 1.1 mips*)
229 : anton 1.34 machine=mips
230 : anton 1.92 #dynamic native code has the following problems on MIPS:
231 :     #
232 :     #1) J/JAL seems relocatable, but is are only
233 :     #relocatable within a 256MB-segment. While we try to
234 :     #get the linker to arrange this, there is no guarantee
235 :     #that this will succeed (and if the user uses a lot of
236 :     #memory, it is likely to fail).
237 :     #
238 :     #2) The way we generate dynamic native code may
239 :     #violate MIPS architectural restrictions (in
240 :     #particular, the delay slots of LW, MFLO, etc.)
241 :     #
242 :     #Therefore we disable dynamic native code by default:
243 : anton 1.136 if test -z $no_dynamic_default; then
244 :     no_dynamic_default=1
245 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
246 :     fi
247 : anton 1.1 ;;
248 : pazsan 1.9 alpha*)
249 : anton 1.34 machine=alpha
250 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
251 :     CFLAGS="$CFLAGS -mieee"
252 : pazsan 1.9 ;;
253 : anton 1.69 power*|rs6000)
254 : anton 1.34 machine=power
255 : anton 1.46 $srcdir/mkinstalldirs arch/power
256 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
257 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
258 : anton 1.165 test x$ac_cv_sizeof_long_long = x &&
259 :     ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
260 :     ac_cv_sizeof_long_long=0
261 : anton 1.31 ;;
262 : anton 1.1 *)
263 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
264 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
265 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
266 : anton 1.34 machine=generic
267 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
268 : anton 1.136 if test -z $no_dynamic_default; then
269 :     no_dynamic_default=1
270 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
271 :     fi
272 : anton 1.1 esac
273 : anton 1.10 AC_SUBST(host)
274 : anton 1.151
275 :     test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
276 :     AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
277 :     [number of registers in the default stack cache state for gforth-fast and gforth-native])
278 : pazsan 1.146
279 : anton 1.173 test x$GCC_PR15242_WORKAROUND = x ||
280 :     AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
281 :     [force (1) or forbid (0) use of a workaround for a gcc performance bug])
282 :    
283 :     dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
284 :     dnl generation on gccs affected by PR15242])
285 :    
286 :    
287 : pazsan 1.146 if test "${enable_force_ll+set}" = set; then
288 :     ac_includes_default="$ac_includes_default
289 :     #include \"arch/generic/128bit.h\""
290 :     fi
291 : anton 1.103
292 :     dnl the following macro produces a warning with autoconf-2.1
293 :     AC_CHECK_SIZEOF(char *)
294 :     case "$ac_cv_sizeof_char_p" in
295 :     2)
296 :     wordsize=16
297 :     ;;
298 :     4)
299 :     wordsize=32
300 :     ;;
301 :     8)
302 :     wordsize=64
303 :     ;;
304 :     esac
305 :    
306 :     AC_CHECK_SIZEOF(char)
307 :     AC_CHECK_SIZEOF(short)
308 :     AC_CHECK_SIZEOF(int)
309 :     AC_CHECK_SIZEOF(long)
310 :     AC_CHECK_SIZEOF(long long)
311 :     AC_CHECK_SIZEOF(intptr_t)
312 :     AC_CHECK_SIZEOF(int128_t)
313 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
314 : anton 1.103
315 :     AC_MSG_CHECKING([for a C type for cells])
316 :     ac_cv_int_type_cell=none
317 :     case "$ac_cv_sizeof_char_p" in
318 :     $ac_cv_sizeof_int)
319 :     ac_cv_int_type_cell=int
320 :     ;;
321 :     $ac_cv_sizeof_short)
322 :     ac_cv_int_type_cell=short
323 :     ;;
324 :     $ac_cv_sizeof_char)
325 :     ac_cv_int_type_cell=char
326 :     ;;
327 :     $ac_cv_sizeof_long)
328 :     ac_cv_int_type_cell=long
329 :     ;;
330 :     $ac_cv_sizeof_long_long)
331 :     ac_cv_int_type_cell="long long"
332 :     ;;
333 :     $ac_cv_sizeof_intptr_t)
334 :     ac_cv_int_type_cell="intptr_t"
335 :     ;;
336 :     $ac_cv_sizeof_int128_t)
337 :     ac_cv_int_type_cell="int128_t"
338 :     ;;
339 :     esac
340 :     AC_MSG_RESULT($ac_cv_int_type_cell)
341 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
342 :    
343 : pazsan 1.153 AC_MSG_CHECKING([for a C type for wydes])
344 :     ac_cv_wyde_type_cell=none
345 :     case 2 in
346 :     $ac_cv_sizeof_int)
347 :     ac_cv_wyde_type_cell=int
348 :     ;;
349 :     $ac_cv_sizeof_short)
350 :     ac_cv_wyde_type_cell=short
351 :     ;;
352 :     $ac_cv_sizeof_char)
353 :     ac_cv_wyde_type_cell=char
354 :     ;;
355 :     $ac_cv_sizeof_long)
356 :     ac_cv_wyde_type_cell=long
357 :     ;;
358 :     $ac_cv_sizeof_long_long)
359 :     ac_cv_wyde_type_cell="long long"
360 :     ;;
361 :     $ac_cv_sizeof_intptr_t)
362 :     ac_cv_wyde_type_cell="intptr_t"
363 :     ;;
364 :     $ac_cv_sizeof_int128_t)
365 :     ac_cv_wyde_type_cell="int128_t"
366 :     ;;
367 :     esac
368 :     AC_MSG_RESULT($ac_cv_wyde_type_cell)
369 :     AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
370 :    
371 :     AC_MSG_CHECKING([for a C type for tetrabytes])
372 :     ac_cv_tetrabyte_type_cell=none
373 :     case 4 in
374 :     $ac_cv_sizeof_int)
375 :     ac_cv_tetrabyte_type_cell=int
376 :     ;;
377 :     $ac_cv_sizeof_short)
378 :     ac_cv_tetrabyte_type_cell=short
379 :     ;;
380 :     $ac_cv_sizeof_char)
381 :     ac_cv_tetrabyte_type_cell=char
382 :     ;;
383 :     $ac_cv_sizeof_long)
384 :     ac_cv_tetrabyte_type_cell=long
385 :     ;;
386 :     $ac_cv_sizeof_long_long)
387 :     ac_cv_tetrabyte_type_cell="long long"
388 :     ;;
389 :     $ac_cv_sizeof_intptr_t)
390 :     ac_cv_tetrabyte_type_cell="intptr_t"
391 :     ;;
392 :     $ac_cv_sizeof_int128_t)
393 :     ac_cv_tetrabyte_type_cell="int128_t"
394 :     ;;
395 :     esac
396 :     AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
397 :     AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
398 :    
399 : anton 1.103 AC_MSG_CHECKING([for a C type for double-cells])
400 :     ac_cv_int_type_double_cell=none
401 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
402 :     $ac_cv_sizeof_short)
403 :     ac_cv_int_type_double_cell=short
404 :     ;;
405 :     $ac_cv_sizeof_int)
406 :     ac_cv_int_type_double_cell=int
407 :     ;;
408 :     $ac_cv_sizeof_long)
409 :     ac_cv_int_type_double_cell=long
410 :     ;;
411 :     $ac_cv_sizeof_long_long)
412 :     ac_cv_int_type_double_cell="long long"
413 :     ;;
414 :     $ac_cv_sizeof_intptr_t)
415 :     ac_cv_int_type_double_cell="intptr_t"
416 :     ;;
417 :     $ac_cv_sizeof_int128_t)
418 :     ac_cv_int_type_double_cell="int128_t"
419 :     ;;
420 :     esac
421 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
422 : pazsan 1.144
423 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
424 :     ac_cv_int_type_double_ucell=none
425 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
426 :     $ac_cv_sizeof_short)
427 :     ac_cv_int_type_double_ucell="unsigned short"
428 :     ;;
429 :     $ac_cv_sizeof_int)
430 :     ac_cv_int_type_double_ucell="unsigned int"
431 :     ;;
432 :     $ac_cv_sizeof_long)
433 :     ac_cv_int_type_double_ucell="unsigned long"
434 :     ;;
435 :     $ac_cv_sizeof_long_long)
436 :     ac_cv_int_type_double_ucell="unsigned long long"
437 :     ;;
438 :     $ac_cv_sizeof_intptr_t)
439 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
440 :     ;;
441 :     $ac_cv_sizeof_uint128_t)
442 :     ac_cv_int_type_double_ucell="uint128_t"
443 :     ;;
444 :     esac
445 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
446 :    
447 :     if test "$ac_cv_int_type_double_cell" = none || \
448 :     test "$ac_cv_int_type_double_ucell" = none
449 :     then
450 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
451 :     AC_LIBOBJ(dblsub)
452 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
453 :     else
454 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
455 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
456 : anton 1.103 fi
457 :    
458 :     AC_TYPE_OFF_T
459 :     AC_CHECK_SIZEOF(off_t)
460 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
461 :     ac_small_off_t=$?
462 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
463 : anton 1.1
464 : anton 1.109 ENGINE_FLAGS=
465 :     AC_SUBST(ENGINE_FLAGS)
466 :    
467 :     # Try if GCC understands -fno-gcse
468 :    
469 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
470 :     CFLAGS_1="$CFLAGS"
471 :     CFLAGS="$CFLAGS -fno-gcse"
472 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
473 :     CFLAGS="$CFLAGS_1"
474 :     AC_MSG_RESULT($ac_nogcse)
475 :    
476 :     # Try if GCC understands -fno-strict-aliasing
477 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
478 :     CFLAGS_1="$CFLAGS"
479 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
480 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
481 :     CFLAGS="$CFLAGS_1"
482 :     AC_MSG_RESULT($ac_nostrictaliasing)
483 :    
484 : anton 1.123 # Try if GCC understands -fno-crossjumping
485 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
486 : pazsan 1.88 CFLAGS_1="$CFLAGS"
487 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
488 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
489 : anton 1.109 CFLAGS="$CFLAGS_1"
490 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
491 : pazsan 1.88
492 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
493 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
494 :     CFLAGS_1="$CFLAGS"
495 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
496 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
497 :     CFLAGS="$CFLAGS_1"
498 :     AC_MSG_RESULT($ac_noreorder_blocks)
499 :    
500 : anton 1.130 # Try if GCC understands __attribute__((unused))
501 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
502 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
503 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
504 :     AC_MSG_RESULT($MAYBE_UNUSED)
505 :    
506 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
507 : anton 1.61 AC_SUBST(asm_fs)
508 :    
509 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
510 : anton 1.61 AC_SUBST(disasm_fs)
511 :    
512 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
513 : anton 1.114
514 : pazsan 1.39 case "$host_os" in
515 : pazsan 1.157 *win32*)
516 :     # !!!FIXME!!! problems with cygwin and ';' as path separator
517 : anton 1.108 DIRSEP="\\\\"
518 : anton 1.127 PATHSEP=";"
519 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
520 :     # handling of .com files.
521 :     #$COMSPEC contains the name of the Windows shell;
522 :     # the ./ is there, because the bash does not recognize
523 :     # absolute DOS filenames
524 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
525 : pazsan 1.39 ;;
526 : anton 1.97 *darwin*)
527 :     #Darwin uses some funny preprocessor by default; eliminate it:
528 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
529 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
530 : anton 1.98 DIRSEP="/"
531 : anton 1.127 PATHSEP=":"
532 : anton 1.141 DEFAULTSYSTEMPREFIX=""
533 : anton 1.98 ;;
534 : pazsan 1.39 *)
535 : pazsan 1.88 DIRSEP="/"
536 : anton 1.127 PATHSEP=":"
537 : anton 1.141 DEFAULTSYSTEMPREFIX=""
538 : pazsan 1.39 ;;
539 :     esac
540 : pazsan 1.88 AC_SUBST(DIRSEP)
541 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
542 : anton 1.127 AC_SUBST(PATHSEP)
543 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
544 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
545 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
546 : pazsan 1.39
547 : anton 1.170 #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
548 : anton 1.172 #This magic incantation seems to be completely undocumented.
549 :     AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
550 : anton 1.170
551 : anton 1.1 dnl Now a little support for DOS/DJGCC
552 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
553 : anton 1.172 GFORTH_EXE=""
554 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
555 : anton 1.172 GFORTHFAST_EXE=""
556 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
557 :     GFORTHITC_EXE=""
558 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
559 :     GFORTHDITC_EXE=""
560 : anton 1.27
561 :     AC_SUBST(FORTHSIZES)
562 : anton 1.24
563 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
564 :     dnl then
565 :     dnl PEEPHOLEFLAG="true"
566 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
567 :     dnl else
568 :     dnl PEEPHOLEFLAG="false"
569 :     dnl fi
570 :     PEEPHOLEFLAG="true"
571 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
572 :    
573 : anton 1.1 dnl copy commands for systems that don't have links
574 : pazsan 1.29 AC_SUBST(LINK_KERNL)
575 :     LINK_KERNL=""
576 : anton 1.1
577 :     #if test $host_os=dos
578 :     #then
579 :     # echo Configuring for DOS!!!
580 :     # MAKE_EXE="coff2exe gforth"
581 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
582 : anton 1.1 #fi
583 :    
584 :     dnl the following macro produces a warning with autoconf-2.1
585 :     AC_C_BIGENDIAN
586 : pazsan 1.23 AC_SUBST(KERNEL)
587 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
588 :     if test $ac_cv_c_bigendian = yes; then
589 :     bytesex=b
590 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
591 : anton 1.1 else
592 :     bytesex=l
593 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
594 : anton 1.1 fi
595 :    
596 : anton 1.91 #check how to do asm(".skip 16")
597 : anton 1.169 #echo "CFLAGS=$CFLAGS"
598 :     #echo "ac_link=$ac_link"
599 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
600 : anton 1.136 if test -z "$skipcode"; then
601 : anton 1.148 skipcode=no
602 :     CFLAGS_1="$CFLAGS"
603 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
604 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
605 :     do
606 : anton 1.91 AC_TRY_RUN(
607 : anton 1.136 [int foo(int,int,int);
608 : anton 1.91 main()
609 :     {
610 : anton 1.136 exit(foo(0,0,0)!=16);
611 : anton 1.91 }
612 : anton 1.136 int foo(int x, int y, int z)
613 : anton 1.91 {
614 : anton 1.136 static void *labels[]={&&label1, &&label2};
615 : anton 1.91 if (x) {
616 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
617 : anton 1.91 label1:
618 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
619 : anton 1.136 label2: ;
620 :     }
621 :     {
622 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
623 :     return labels[1]-labels[0];
624 : anton 1.91 }
625 : anton 1.136 }]
626 : anton 1.92 ,skipcode=$i; break
627 :     ,,)
628 : anton 1.136 done
629 : anton 1.148 CFLAGS=$CFLAGS_1
630 : anton 1.136 fi
631 : anton 1.92 AC_MSG_RESULT($skipcode)
632 :     if test "$skipcode" = no
633 :     then
634 : anton 1.136 if test -z $no_dynamic_default; then
635 :     no_dynamic_default=1
636 :     AC_MSG_WARN(Disabling default dynamic native code generation)
637 :     fi
638 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
639 :     else
640 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
641 :     fi
642 : anton 1.91
643 : anton 1.174 AC_MSG_CHECKING([if and how we can do comments in asm statements])
644 :     #the point here is to get asm statements that look different to
645 :     #gcc's "optimizer"
646 :     if test -z "$asmcomment"; then
647 :     asmcomment=no
648 :     CFLAGS_1="$CFLAGS"
649 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
650 : anton 1.176 for i in '"# "' '"! "' '"; "'; do
651 : anton 1.174 AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
652 :     done
653 :     CFLAGS=$CFLAGS_1
654 :     fi
655 :     AC_MSG_RESULT($asmcomment)
656 :     if test "$asmcomment" != no
657 :     then
658 :     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
659 :     fi
660 :    
661 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
662 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
663 : anton 1.91
664 : anton 1.1 dnl Checks for programs.
665 :     AC_PROG_LN_S
666 : anton 1.95 AC_PROG_INSTALL
667 : pazsan 1.163 AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
668 : anton 1.1
669 :     dnl Checks for library functions
670 : anton 1.2 dnl This check is just for making later checks link with libm.
671 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
672 :     AC_CHECK_LIB(m,asin)
673 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
674 : pazsan 1.152 dnl check for libffi 2.x
675 :     AC_CHECK_LIB(ffi,ffi_call)
676 :     if test $ac_cv_lib_ffi_ffi_call = yes
677 :     then
678 :     LIBFFIFLAG="true"
679 :     FFCALLFLAG="false"
680 :     OLDCALLFLAG="false"
681 :     AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
682 :     else
683 : pazsan 1.124 dnl check for ffcall libraries
684 :     dnl unfortunately, these four calls are separated out into a library each.
685 :     AC_CHECK_LIB(avcall,__builtin_avcall)
686 :     AC_CHECK_LIB(callback,__vacall_r)
687 :     AC_CHECK_LIB(vacall,vacall)
688 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
689 : pazsan 1.152 LIBFFIFLAG="false"
690 : anton 1.125 FFCALLFLAG="false"
691 : pazsan 1.129 OLDCALLFLAG="true"
692 :     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])
693 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
694 : pazsan 1.152 fi
695 :     AC_SUBST(LIBFFIFLAG)
696 : anton 1.125 AC_SUBST(FFCALLFLAG)
697 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
698 : pazsan 1.32 if test "$host_os" != "nextstep3"
699 :     then
700 :     AC_FUNC_MEMCMP
701 :     fi
702 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
703 : anton 1.97 AC_FUNC_FSEEKO
704 :     AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
705 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
706 : anton 1.19 AC_DECL_SYS_SIGLIST
707 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
708 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
709 :     AC_REPLACE_FUNCS(rint ecvt)
710 : anton 1.1 dnl No check for select, because our replacement is no good under
711 :     dnl anything but DOS
712 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
713 : anton 1.63 AC_FUNC_FNMATCH
714 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
715 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
716 : anton 1.34 AM_PATH_LISPDIR
717 : anton 1.1
718 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
719 :     AC_SUBST(kernel_fi)
720 : jwilke 1.50
721 : anton 1.76 #this breaks bindists
722 :     #dnl replace srource directory by absolute value
723 :     #if test $srcdir = "."; then srcdir=`pwd`
724 :     #fi
725 : anton 1.8
726 : anton 1.34 AC_SUBST(machine)
727 : anton 1.95 AC_CONFIG_FILES([
728 : anton 1.31 Makefile
729 : pazsan 1.45 Makedist
730 : anton 1.43 gforthmi
731 : anton 1.80 vmgen
732 : pazsan 1.79 machpc.fs
733 : pazsan 1.159 envos.fs
734 : anton 1.35 engine/Makefile
735 : pazsan 1.161 doc/version.texi
736 :     build-ec ])
737 : anton 1.95 AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
738 : anton 1.43 chmod +x gforthmi
739 : anton 1.80 chmod +x vmgen
740 : pazsan 1.162 chmod +x build-ec
741 : anton 1.95 test -d kernel||mkdir kernel]],[[]])
742 :     AC_OUTPUT
743 : anton 1.44

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