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

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