[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 1.181 AC_INIT([gforth],[0.6.9-20070401],[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="$withval")
88 :    
89 : pazsan 1.182 AC_ARG_WITH(ec,
90 :     AC_HELP_STRING([--with-ec=<arch>],
91 : pazsan 1.168 [ Build gforth for systems without OS.]),
92 : pazsan 1.182 [if test "$withval" = "no"; then
93 :     echo "defining hosted system"
94 :     EC_MODE="false"
95 :     EC=""
96 :     engine2="engine2.o"
97 :     engine_fast2="engine-fast2.o"
98 :     no_dynamic=""
99 :     image_i=""
100 :     signals_o="io.o signals.o"
101 : pazsan 1.183 GCC_LD="\$(GCC)"
102 : pazsan 1.182 else
103 :     echo "defining standalone system (${withval})"
104 : pazsan 1.168 AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
105 : pazsan 1.167 EC_MODE="true"
106 : pazsan 1.178 EC="-ec"
107 :     engine2=""
108 :     engine_fast2=""
109 :     no_dynamic="-DNO_DYNAMIC"
110 :     image_i="image.i"
111 : pazsan 1.182 if test "$withval" != "yes"; then
112 :     signals_o="io-${withval}.o"
113 :     else
114 :     signals_o="io.o"
115 :     fi
116 : pazsan 1.183 GCC_PATH=$(which $CC)
117 :     LIB_PATH=${GCC_PATH%/*/*}
118 :     GCC_LD="\$(LD)"
119 :     plattform=${withval}
120 : pazsan 1.182 fi])
121 : pazsan 1.167
122 : anton 1.104 #variables mentioned in INSTALL
123 : anton 1.123 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
124 : anton 1.104 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
125 : 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).])
126 : 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)])
127 :    
128 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
129 : pazsan 1.183 AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
130 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
131 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
132 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
133 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
134 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
135 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
136 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
137 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
138 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
139 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
140 : anton 1.166 AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
141 : anton 1.174 AC_ARG_VAR(asmcomment, [assembler comment start string])
142 : anton 1.175 AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
143 : anton 1.82
144 : anton 1.96 #set up feature test macros, so the tests get them right:
145 :     # turn on all POSIX, SUSv3, and GNU features if available
146 : anton 1.97 AC_GNU_SOURCE
147 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
148 :    
149 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
150 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
151 :     dnl but not for _XOPEN_SOURCE)
152 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
153 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
154 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
155 : anton 1.96 # turn on large file support with 64-bit off_t where available
156 : anton 1.105 AC_SYS_LARGEFILE
157 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
158 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
159 : anton 1.96
160 : anton 1.82 #currently we force direct threading this way. Eventually we should
161 :     #setup in the arch and engine files right
162 : anton 1.16
163 : pazsan 1.15 AC_PROG_CC
164 :    
165 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
166 : pazsan 1.9
167 : pazsan 1.15 AC_SUBST(CC)
168 : pazsan 1.183 AC_SUBST(GCC_LD)
169 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
170 : pazsan 1.178 AC_SUBST(EC)
171 : pazsan 1.167 AC_SUBST(EC_MODE)
172 : pazsan 1.178 AC_SUBST(engine2)
173 :     AC_SUBST(engine_fast2)
174 :     AC_SUBST(no_dynamic)
175 :     AC_SUBST(image_i)
176 : pazsan 1.179 AC_SUBST(signals_o)
177 : anton 1.7
178 : anton 1.174 #this is used to disable some (not generally essential) part of the
179 :     #Makefile that some makes don't grok. It would be better to test for
180 :     #this specific Makefile feature than the make version.
181 : pazsan 1.128 AC_MSG_CHECKING(make type)
182 : anton 1.174 make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
183 : pazsan 1.128 GNUMAKE='#'
184 :     test "$make_type" = "GNU Make" && GNUMAKE=''
185 :     AC_MSG_RESULT($make_type)
186 :     AC_SUBST(GNUMAKE)
187 :    
188 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
189 :     OLDLDFLAGS=$LDFLAGS
190 :     LDFLAGS="$LDFLAGS -export-dynamic"
191 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
192 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
193 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
194 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
195 :     AC_MSG_RESULT($ac_export_dynamic)
196 :    
197 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
198 :     #gforth will run; the system on which configure will run is the `build'
199 :     AC_CANONICAL_HOST
200 :     case "$host_cpu" in
201 : anton 1.136 arm*)
202 :     machine=arm
203 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
204 : pazsan 1.183 if test x$plattform = xnxt; then
205 :     CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
206 :     fi
207 : anton 1.175 if test -z $arm_cacheflush; then
208 : anton 1.136 no_dynamic_default=1
209 : anton 1.175 arm_cacheflush=arch/arm/cacheflush0
210 : anton 1.136 AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
211 :     fi
212 : anton 1.175 AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
213 :     AC_LIBOBJ(../$arm_cacheflush)
214 : anton 1.177 #longer skipcodes lead to problems on ARM, and it uses
215 :     #only 4-byte alignment anyway
216 :     test "$skipcode" || skipcode="nop"
217 : anton 1.136 ;;
218 : anton 1.1 hppa*)
219 : anton 1.34 machine=hppa
220 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
221 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
222 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
223 :     LDFLAGS="$LDFLAGS -Xlinker -N"
224 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
225 : anton 1.1 ;;
226 :     sparc*)
227 : anton 1.34 machine=sparc
228 : anton 1.1 ;;
229 : anton 1.31 i386)
230 : anton 1.34 machine=386
231 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
232 : anton 1.31 ;;
233 :     i486)
234 : anton 1.34 machine=386
235 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
236 :     ;;
237 : anton 1.77 i*86)
238 : anton 1.34 machine=386
239 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
240 : pazsan 1.56 CFLAGS_1="$CFLAGS"
241 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
242 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
243 : anton 1.1 ;;
244 : anton 1.133 x86_64)
245 :     machine=amd64
246 :     ;;
247 : anton 1.136 ia64*)
248 :     machine=ia64
249 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
250 :     test "$skipcode" || skipcode="nop.i 0"
251 :     #".skip 16" passes the test below,
252 :     # but gives an assembler error in engine
253 :     ;;
254 : pazsan 1.26 m68k)
255 : anton 1.34 machine=m68k
256 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
257 :     if test "$host_os" = "nextstep3"
258 :     then
259 : pazsan 1.87 AC_LIBOBJ(termios)
260 : pazsan 1.32 fi
261 : pazsan 1.26 ;;
262 : anton 1.1 mips*)
263 : anton 1.34 machine=mips
264 : anton 1.92 #dynamic native code has the following problems on MIPS:
265 :     #
266 :     #1) J/JAL seems relocatable, but is are only
267 :     #relocatable within a 256MB-segment. While we try to
268 :     #get the linker to arrange this, there is no guarantee
269 :     #that this will succeed (and if the user uses a lot of
270 :     #memory, it is likely to fail).
271 :     #
272 :     #2) The way we generate dynamic native code may
273 :     #violate MIPS architectural restrictions (in
274 :     #particular, the delay slots of LW, MFLO, etc.)
275 :     #
276 :     #Therefore we disable dynamic native code by default:
277 : anton 1.136 if test -z $no_dynamic_default; then
278 :     no_dynamic_default=1
279 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
280 :     fi
281 : anton 1.1 ;;
282 : pazsan 1.9 alpha*)
283 : anton 1.34 machine=alpha
284 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
285 :     CFLAGS="$CFLAGS -mieee"
286 : pazsan 1.9 ;;
287 : anton 1.69 power*|rs6000)
288 : anton 1.34 machine=power
289 : anton 1.46 $srcdir/mkinstalldirs arch/power
290 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
291 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
292 : anton 1.165 test x$ac_cv_sizeof_long_long = x &&
293 :     ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
294 :     ac_cv_sizeof_long_long=0
295 : anton 1.31 ;;
296 : anton 1.1 *)
297 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
298 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
299 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
300 : anton 1.34 machine=generic
301 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
302 : anton 1.136 if test -z $no_dynamic_default; then
303 :     no_dynamic_default=1
304 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
305 :     fi
306 : anton 1.1 esac
307 : anton 1.10 AC_SUBST(host)
308 : anton 1.151
309 : pazsan 1.183 echo "Check for arch/$machine/$plattform/gforth.ld ($EC_MODE)"
310 :     if test x$EC_MODE = xtrue
311 :     then
312 :     echo "Check for arch/$machine/$plattform/gforth.ld"
313 :     if test -f arch/$machine/$plattform/gforth.ld
314 :     then
315 :     LDFLAGS="-T ../arch/$machine/$plattform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
316 :     if test x$plattform = xnxt; then
317 :     LIBS="$LIB_PATH/lib/gcc/arm-elf/$($CC --version | grep GCC | cut -d' ' -f3)/interwork/libgcc.a $LIB_PATH/arm-elf/lib/interwork/libc.a $LIBS"
318 :     fi
319 :     fi
320 :     fi
321 :    
322 : anton 1.151 test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
323 :     AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
324 :     [number of registers in the default stack cache state for gforth-fast and gforth-native])
325 : pazsan 1.146
326 : anton 1.173 test x$GCC_PR15242_WORKAROUND = x ||
327 :     AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
328 :     [force (1) or forbid (0) use of a workaround for a gcc performance bug])
329 :    
330 :     dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
331 :     dnl generation on gccs affected by PR15242])
332 :    
333 :    
334 : pazsan 1.146 if test "${enable_force_ll+set}" = set; then
335 :     ac_includes_default="$ac_includes_default
336 :     #include \"arch/generic/128bit.h\""
337 :     fi
338 : anton 1.103
339 :     dnl the following macro produces a warning with autoconf-2.1
340 :     AC_CHECK_SIZEOF(char *)
341 :     case "$ac_cv_sizeof_char_p" in
342 :     2)
343 :     wordsize=16
344 :     ;;
345 :     4)
346 :     wordsize=32
347 :     ;;
348 :     8)
349 :     wordsize=64
350 :     ;;
351 :     esac
352 :    
353 : pazsan 1.183 AC_CHECK_SIZEOF(void *)
354 :     case "$ac_cv_sizeof_void_p" in
355 :     2)
356 :     vwordsize=16
357 :     ;;
358 :     4)
359 :     vwordsize=32
360 :     ;;
361 :     8)
362 :     vwordsize=64
363 :     ;;
364 :     esac
365 :    
366 : anton 1.103 AC_CHECK_SIZEOF(char)
367 :     AC_CHECK_SIZEOF(short)
368 :     AC_CHECK_SIZEOF(int)
369 :     AC_CHECK_SIZEOF(long)
370 :     AC_CHECK_SIZEOF(long long)
371 :     AC_CHECK_SIZEOF(intptr_t)
372 :     AC_CHECK_SIZEOF(int128_t)
373 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
374 : anton 1.103
375 :     AC_MSG_CHECKING([for a C type for cells])
376 :     ac_cv_int_type_cell=none
377 :     case "$ac_cv_sizeof_char_p" in
378 :     $ac_cv_sizeof_int)
379 :     ac_cv_int_type_cell=int
380 :     ;;
381 :     $ac_cv_sizeof_short)
382 :     ac_cv_int_type_cell=short
383 :     ;;
384 :     $ac_cv_sizeof_char)
385 :     ac_cv_int_type_cell=char
386 :     ;;
387 :     $ac_cv_sizeof_long)
388 :     ac_cv_int_type_cell=long
389 :     ;;
390 :     $ac_cv_sizeof_long_long)
391 :     ac_cv_int_type_cell="long long"
392 :     ;;
393 :     $ac_cv_sizeof_intptr_t)
394 :     ac_cv_int_type_cell="intptr_t"
395 :     ;;
396 :     $ac_cv_sizeof_int128_t)
397 :     ac_cv_int_type_cell="int128_t"
398 :     ;;
399 :     esac
400 :     AC_MSG_RESULT($ac_cv_int_type_cell)
401 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
402 :    
403 : pazsan 1.153 AC_MSG_CHECKING([for a C type for wydes])
404 :     ac_cv_wyde_type_cell=none
405 :     case 2 in
406 :     $ac_cv_sizeof_int)
407 :     ac_cv_wyde_type_cell=int
408 :     ;;
409 :     $ac_cv_sizeof_short)
410 :     ac_cv_wyde_type_cell=short
411 :     ;;
412 :     $ac_cv_sizeof_char)
413 :     ac_cv_wyde_type_cell=char
414 :     ;;
415 :     $ac_cv_sizeof_long)
416 :     ac_cv_wyde_type_cell=long
417 :     ;;
418 :     $ac_cv_sizeof_long_long)
419 :     ac_cv_wyde_type_cell="long long"
420 :     ;;
421 :     $ac_cv_sizeof_intptr_t)
422 :     ac_cv_wyde_type_cell="intptr_t"
423 :     ;;
424 :     $ac_cv_sizeof_int128_t)
425 :     ac_cv_wyde_type_cell="int128_t"
426 :     ;;
427 :     esac
428 :     AC_MSG_RESULT($ac_cv_wyde_type_cell)
429 :     AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
430 :    
431 :     AC_MSG_CHECKING([for a C type for tetrabytes])
432 :     ac_cv_tetrabyte_type_cell=none
433 :     case 4 in
434 :     $ac_cv_sizeof_int)
435 :     ac_cv_tetrabyte_type_cell=int
436 :     ;;
437 :     $ac_cv_sizeof_short)
438 :     ac_cv_tetrabyte_type_cell=short
439 :     ;;
440 :     $ac_cv_sizeof_char)
441 :     ac_cv_tetrabyte_type_cell=char
442 :     ;;
443 :     $ac_cv_sizeof_long)
444 :     ac_cv_tetrabyte_type_cell=long
445 :     ;;
446 :     $ac_cv_sizeof_long_long)
447 :     ac_cv_tetrabyte_type_cell="long long"
448 :     ;;
449 :     $ac_cv_sizeof_intptr_t)
450 :     ac_cv_tetrabyte_type_cell="intptr_t"
451 :     ;;
452 :     $ac_cv_sizeof_int128_t)
453 :     ac_cv_tetrabyte_type_cell="int128_t"
454 :     ;;
455 :     esac
456 :     AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
457 :     AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
458 :    
459 : anton 1.103 AC_MSG_CHECKING([for a C type for double-cells])
460 :     ac_cv_int_type_double_cell=none
461 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
462 :     $ac_cv_sizeof_short)
463 :     ac_cv_int_type_double_cell=short
464 :     ;;
465 :     $ac_cv_sizeof_int)
466 :     ac_cv_int_type_double_cell=int
467 :     ;;
468 :     $ac_cv_sizeof_long)
469 :     ac_cv_int_type_double_cell=long
470 :     ;;
471 :     $ac_cv_sizeof_long_long)
472 :     ac_cv_int_type_double_cell="long long"
473 :     ;;
474 :     $ac_cv_sizeof_intptr_t)
475 :     ac_cv_int_type_double_cell="intptr_t"
476 :     ;;
477 :     $ac_cv_sizeof_int128_t)
478 :     ac_cv_int_type_double_cell="int128_t"
479 :     ;;
480 :     esac
481 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
482 : pazsan 1.144
483 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
484 :     ac_cv_int_type_double_ucell=none
485 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
486 :     $ac_cv_sizeof_short)
487 :     ac_cv_int_type_double_ucell="unsigned short"
488 :     ;;
489 :     $ac_cv_sizeof_int)
490 :     ac_cv_int_type_double_ucell="unsigned int"
491 :     ;;
492 :     $ac_cv_sizeof_long)
493 :     ac_cv_int_type_double_ucell="unsigned long"
494 :     ;;
495 :     $ac_cv_sizeof_long_long)
496 :     ac_cv_int_type_double_ucell="unsigned long long"
497 :     ;;
498 :     $ac_cv_sizeof_intptr_t)
499 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
500 :     ;;
501 :     $ac_cv_sizeof_uint128_t)
502 :     ac_cv_int_type_double_ucell="uint128_t"
503 :     ;;
504 :     esac
505 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
506 :    
507 :     if test "$ac_cv_int_type_double_cell" = none || \
508 :     test "$ac_cv_int_type_double_ucell" = none
509 :     then
510 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
511 :     AC_LIBOBJ(dblsub)
512 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
513 :     else
514 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
515 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
516 : anton 1.103 fi
517 :    
518 :     AC_TYPE_OFF_T
519 :     AC_CHECK_SIZEOF(off_t)
520 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
521 :     ac_small_off_t=$?
522 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
523 : anton 1.1
524 : anton 1.109 ENGINE_FLAGS=
525 :     AC_SUBST(ENGINE_FLAGS)
526 :    
527 :     # Try if GCC understands -fno-gcse
528 :    
529 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
530 :     CFLAGS_1="$CFLAGS"
531 :     CFLAGS="$CFLAGS -fno-gcse"
532 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
533 :     CFLAGS="$CFLAGS_1"
534 :     AC_MSG_RESULT($ac_nogcse)
535 :    
536 :     # Try if GCC understands -fno-strict-aliasing
537 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
538 :     CFLAGS_1="$CFLAGS"
539 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
540 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
541 :     CFLAGS="$CFLAGS_1"
542 :     AC_MSG_RESULT($ac_nostrictaliasing)
543 :    
544 : anton 1.123 # Try if GCC understands -fno-crossjumping
545 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
546 : pazsan 1.88 CFLAGS_1="$CFLAGS"
547 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
548 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
549 : anton 1.109 CFLAGS="$CFLAGS_1"
550 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
551 : pazsan 1.88
552 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
553 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
554 :     CFLAGS_1="$CFLAGS"
555 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
556 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
557 :     CFLAGS="$CFLAGS_1"
558 :     AC_MSG_RESULT($ac_noreorder_blocks)
559 :    
560 : anton 1.130 # Try if GCC understands __attribute__((unused))
561 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
562 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
563 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
564 :     AC_MSG_RESULT($MAYBE_UNUSED)
565 :    
566 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
567 : anton 1.61 AC_SUBST(asm_fs)
568 :    
569 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
570 : anton 1.61 AC_SUBST(disasm_fs)
571 :    
572 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
573 : anton 1.114
574 : pazsan 1.39 case "$host_os" in
575 : pazsan 1.157 *win32*)
576 :     # !!!FIXME!!! problems with cygwin and ';' as path separator
577 : anton 1.108 DIRSEP="\\\\"
578 : anton 1.127 PATHSEP=";"
579 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
580 :     # handling of .com files.
581 :     #$COMSPEC contains the name of the Windows shell;
582 :     # the ./ is there, because the bash does not recognize
583 :     # absolute DOS filenames
584 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
585 : pazsan 1.39 ;;
586 : anton 1.97 *darwin*)
587 :     #Darwin uses some funny preprocessor by default; eliminate it:
588 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
589 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
590 : anton 1.98 DIRSEP="/"
591 : anton 1.127 PATHSEP=":"
592 : anton 1.141 DEFAULTSYSTEMPREFIX=""
593 : anton 1.98 ;;
594 : pazsan 1.39 *)
595 : pazsan 1.88 DIRSEP="/"
596 : anton 1.127 PATHSEP=":"
597 : anton 1.141 DEFAULTSYSTEMPREFIX=""
598 : pazsan 1.39 ;;
599 :     esac
600 : pazsan 1.88 AC_SUBST(DIRSEP)
601 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
602 : anton 1.127 AC_SUBST(PATHSEP)
603 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
604 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
605 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
606 : pazsan 1.39
607 : anton 1.170 #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
608 : anton 1.172 #This magic incantation seems to be completely undocumented.
609 :     AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
610 : anton 1.170
611 : anton 1.1 dnl Now a little support for DOS/DJGCC
612 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
613 : anton 1.172 GFORTH_EXE=""
614 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
615 : anton 1.172 GFORTHFAST_EXE=""
616 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
617 :     GFORTHITC_EXE=""
618 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
619 :     GFORTHDITC_EXE=""
620 : anton 1.27
621 :     AC_SUBST(FORTHSIZES)
622 : anton 1.24
623 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
624 :     dnl then
625 :     dnl PEEPHOLEFLAG="true"
626 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
627 :     dnl else
628 :     dnl PEEPHOLEFLAG="false"
629 :     dnl fi
630 :     PEEPHOLEFLAG="true"
631 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
632 :    
633 : anton 1.1 dnl copy commands for systems that don't have links
634 : pazsan 1.29 AC_SUBST(LINK_KERNL)
635 :     LINK_KERNL=""
636 : anton 1.1
637 :     #if test $host_os=dos
638 :     #then
639 :     # echo Configuring for DOS!!!
640 :     # MAKE_EXE="coff2exe gforth"
641 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
642 : anton 1.1 #fi
643 :    
644 :     dnl the following macro produces a warning with autoconf-2.1
645 :     AC_C_BIGENDIAN
646 : pazsan 1.23 AC_SUBST(KERNEL)
647 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
648 :     if test $ac_cv_c_bigendian = yes; then
649 :     bytesex=b
650 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
651 : anton 1.1 else
652 :     bytesex=l
653 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
654 : anton 1.1 fi
655 :    
656 : anton 1.91 #check how to do asm(".skip 16")
657 : anton 1.169 #echo "CFLAGS=$CFLAGS"
658 :     #echo "ac_link=$ac_link"
659 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
660 : anton 1.136 if test -z "$skipcode"; then
661 : anton 1.148 skipcode=no
662 :     CFLAGS_1="$CFLAGS"
663 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
664 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
665 :     do
666 : anton 1.91 AC_TRY_RUN(
667 : anton 1.136 [int foo(int,int,int);
668 : anton 1.91 main()
669 :     {
670 : anton 1.136 exit(foo(0,0,0)!=16);
671 : anton 1.91 }
672 : anton 1.136 int foo(int x, int y, int z)
673 : anton 1.91 {
674 : anton 1.136 static void *labels[]={&&label1, &&label2};
675 : anton 1.91 if (x) {
676 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
677 : anton 1.91 label1:
678 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
679 : anton 1.136 label2: ;
680 :     }
681 :     {
682 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
683 :     return labels[1]-labels[0];
684 : anton 1.91 }
685 : anton 1.136 }]
686 : anton 1.92 ,skipcode=$i; break
687 :     ,,)
688 : anton 1.136 done
689 : anton 1.148 CFLAGS=$CFLAGS_1
690 : anton 1.136 fi
691 : anton 1.92 AC_MSG_RESULT($skipcode)
692 :     if test "$skipcode" = no
693 :     then
694 : anton 1.136 if test -z $no_dynamic_default; then
695 :     no_dynamic_default=1
696 :     AC_MSG_WARN(Disabling default dynamic native code generation)
697 :     fi
698 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
699 :     else
700 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
701 :     fi
702 : anton 1.91
703 : anton 1.174 AC_MSG_CHECKING([if and how we can do comments in asm statements])
704 :     #the point here is to get asm statements that look different to
705 :     #gcc's "optimizer"
706 :     if test -z "$asmcomment"; then
707 :     asmcomment=no
708 :     CFLAGS_1="$CFLAGS"
709 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
710 : anton 1.176 for i in '"# "' '"! "' '"; "'; do
711 : anton 1.174 AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
712 :     done
713 :     CFLAGS=$CFLAGS_1
714 :     fi
715 :     AC_MSG_RESULT($asmcomment)
716 :     if test "$asmcomment" != no
717 :     then
718 :     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
719 :     fi
720 :    
721 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
722 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
723 : anton 1.91
724 : anton 1.1 dnl Checks for programs.
725 :     AC_PROG_LN_S
726 : anton 1.95 AC_PROG_INSTALL
727 : pazsan 1.163 AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
728 : anton 1.1
729 :     dnl Checks for library functions
730 : anton 1.2 dnl This check is just for making later checks link with libm.
731 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
732 :     AC_CHECK_LIB(m,asin)
733 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
734 : pazsan 1.152 dnl check for libffi 2.x
735 :     AC_CHECK_LIB(ffi,ffi_call)
736 :     if test $ac_cv_lib_ffi_ffi_call = yes
737 :     then
738 :     LIBFFIFLAG="true"
739 :     FFCALLFLAG="false"
740 :     OLDCALLFLAG="false"
741 :     AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
742 :     else
743 : pazsan 1.124 dnl check for ffcall libraries
744 :     dnl unfortunately, these four calls are separated out into a library each.
745 :     AC_CHECK_LIB(avcall,__builtin_avcall)
746 :     AC_CHECK_LIB(callback,__vacall_r)
747 :     AC_CHECK_LIB(vacall,vacall)
748 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
749 : pazsan 1.152 LIBFFIFLAG="false"
750 : anton 1.125 FFCALLFLAG="false"
751 : pazsan 1.129 OLDCALLFLAG="true"
752 :     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])
753 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
754 : pazsan 1.152 fi
755 :     AC_SUBST(LIBFFIFLAG)
756 : anton 1.125 AC_SUBST(FFCALLFLAG)
757 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
758 : pazsan 1.32 if test "$host_os" != "nextstep3"
759 :     then
760 :     AC_FUNC_MEMCMP
761 :     fi
762 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
763 : anton 1.97 AC_FUNC_FSEEKO
764 :     AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
765 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
766 : anton 1.19 AC_DECL_SYS_SIGLIST
767 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
768 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
769 :     AC_REPLACE_FUNCS(rint ecvt)
770 : anton 1.1 dnl No check for select, because our replacement is no good under
771 :     dnl anything but DOS
772 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
773 : anton 1.63 AC_FUNC_FNMATCH
774 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
775 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
776 : anton 1.34 AM_PATH_LISPDIR
777 : anton 1.1
778 : pazsan 1.183 kernel_fi=kernl${vwordsize}${bytesex}.fi
779 : pazsan 1.178 include_fi=kernl${wordsize}${bytesex}${EC}.fi
780 : pazsan 1.23 AC_SUBST(kernel_fi)
781 : pazsan 1.178 AC_SUBST(include_fi)
782 : jwilke 1.50
783 : anton 1.76 #this breaks bindists
784 :     #dnl replace srource directory by absolute value
785 :     #if test $srcdir = "."; then srcdir=`pwd`
786 :     #fi
787 : anton 1.8
788 : anton 1.34 AC_SUBST(machine)
789 : anton 1.95 AC_CONFIG_FILES([
790 : anton 1.31 Makefile
791 : pazsan 1.45 Makedist
792 : anton 1.43 gforthmi
793 : anton 1.80 vmgen
794 : pazsan 1.79 machpc.fs
795 : pazsan 1.159 envos.fs
796 : anton 1.35 engine/Makefile
797 : pazsan 1.161 doc/version.texi
798 :     build-ec ])
799 : anton 1.95 AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
800 : anton 1.43 chmod +x gforthmi
801 : anton 1.80 chmod +x vmgen
802 : pazsan 1.162 chmod +x build-ec
803 : anton 1.95 test -d kernel||mkdir kernel]],[[]])
804 :     AC_OUTPUT
805 : anton 1.44

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