[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 : anton 1.188 AC_INIT([gforth],[0.6.9-20070604],[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 : anton 1.187 UPDATED="June 02, 2007"
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="$withval")
88 :    
89 : pazsan 1.185 GCC_LD="\$(GCC)"
90 :     EC_MODE="false"
91 :     EC=""
92 :     engine2="engine2.o"
93 :     engine_fast2="engine-fast2.o"
94 :     no_dynamic=""
95 :     image_i=""
96 :     signals_o="io.o signals.o"
97 :    
98 : pazsan 1.182 AC_ARG_WITH(ec,
99 :     AC_HELP_STRING([--with-ec=<arch>],
100 : pazsan 1.168 [ Build gforth for systems without OS.]),
101 : pazsan 1.182 [if test "$withval" = "no"; then
102 :     echo "defining hosted system"
103 :     else
104 :     echo "defining standalone system (${withval})"
105 : pazsan 1.168 AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
106 : pazsan 1.167 EC_MODE="true"
107 : pazsan 1.178 EC="-ec"
108 :     engine2=""
109 :     engine_fast2=""
110 :     no_dynamic="-DNO_DYNAMIC"
111 :     image_i="image.i"
112 : pazsan 1.182 if test "$withval" != "yes"; then
113 :     signals_o="io-${withval}.o"
114 :     else
115 :     signals_o="io.o"
116 :     fi
117 : pazsan 1.183 GCC_PATH=$(which $CC)
118 :     LIB_PATH=${GCC_PATH%/*/*}
119 :     GCC_LD="\$(LD)"
120 : pazsan 1.184 platform=${withval}
121 : pazsan 1.182 fi])
122 : pazsan 1.167
123 : anton 1.104 #variables mentioned in INSTALL
124 : anton 1.123 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
125 : anton 1.104 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
126 : 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).])
127 : 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)])
128 :    
129 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
130 : pazsan 1.183 AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
131 : anton 1.104 AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
132 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
133 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
134 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
135 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
136 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
137 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
138 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
139 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
140 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
141 : anton 1.190 AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
142 : anton 1.166 AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
143 : anton 1.174 AC_ARG_VAR(asmcomment, [assembler comment start string])
144 : anton 1.175 AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
145 : anton 1.82
146 : anton 1.96 #set up feature test macros, so the tests get them right:
147 :     # turn on all POSIX, SUSv3, and GNU features if available
148 : anton 1.97 AC_GNU_SOURCE
149 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
150 :    
151 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
152 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
153 :     dnl but not for _XOPEN_SOURCE)
154 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
155 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
156 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
157 : anton 1.96 # turn on large file support with 64-bit off_t where available
158 : anton 1.105 AC_SYS_LARGEFILE
159 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
160 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
161 : anton 1.96
162 : anton 1.82 #currently we force direct threading this way. Eventually we should
163 :     #setup in the arch and engine files right
164 : anton 1.16
165 : pazsan 1.15 AC_PROG_CC
166 :    
167 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
168 : pazsan 1.9
169 : anton 1.190 AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
170 :     test x$condbranch_opt = x &&
171 :     if ($CC -v 2>&1 |grep -q 'gcc version 3'); then
172 :     condbranch_opt=0
173 :     else
174 :     condbranch_opt=1
175 :     fi
176 :     AC_MSG_RESULT($condbranch_opt)
177 :     AC_SUBST(condbranch_opt)
178 :    
179 : pazsan 1.15 AC_SUBST(CC)
180 : pazsan 1.183 AC_SUBST(GCC_LD)
181 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
182 : pazsan 1.178 AC_SUBST(EC)
183 : pazsan 1.167 AC_SUBST(EC_MODE)
184 : pazsan 1.178 AC_SUBST(engine2)
185 :     AC_SUBST(engine_fast2)
186 :     AC_SUBST(no_dynamic)
187 :     AC_SUBST(image_i)
188 : pazsan 1.179 AC_SUBST(signals_o)
189 : anton 1.7
190 : anton 1.174 #this is used to disable some (not generally essential) part of the
191 :     #Makefile that some makes don't grok. It would be better to test for
192 :     #this specific Makefile feature than the make version.
193 : pazsan 1.128 AC_MSG_CHECKING(make type)
194 : anton 1.174 make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
195 : pazsan 1.128 GNUMAKE='#'
196 :     test "$make_type" = "GNU Make" && GNUMAKE=''
197 :     AC_MSG_RESULT($make_type)
198 :     AC_SUBST(GNUMAKE)
199 :    
200 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
201 :     OLDLDFLAGS=$LDFLAGS
202 :     LDFLAGS="$LDFLAGS -export-dynamic"
203 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
204 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
205 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
206 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
207 :     AC_MSG_RESULT($ac_export_dynamic)
208 :    
209 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
210 :     #gforth will run; the system on which configure will run is the `build'
211 :     AC_CANONICAL_HOST
212 :     case "$host_cpu" in
213 : anton 1.136 arm*)
214 :     machine=arm
215 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
216 : pazsan 1.184 if test x$platform = xnxt; then
217 : pazsan 1.183 CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
218 :     fi
219 : anton 1.175 if test -z $arm_cacheflush; then
220 : anton 1.136 no_dynamic_default=1
221 : anton 1.175 arm_cacheflush=arch/arm/cacheflush0
222 : anton 1.136 AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
223 :     fi
224 : anton 1.175 AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
225 :     AC_LIBOBJ(../$arm_cacheflush)
226 : anton 1.177 #longer skipcodes lead to problems on ARM, and it uses
227 :     #only 4-byte alignment anyway
228 :     test "$skipcode" || skipcode="nop"
229 : anton 1.136 ;;
230 : anton 1.1 hppa*)
231 : anton 1.34 machine=hppa
232 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
233 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
234 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
235 :     LDFLAGS="$LDFLAGS -Xlinker -N"
236 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
237 : anton 1.1 ;;
238 :     sparc*)
239 : anton 1.34 machine=sparc
240 : anton 1.1 ;;
241 : anton 1.31 i386)
242 : anton 1.34 machine=386
243 : anton 1.189 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
244 : anton 1.31 ;;
245 :     i486)
246 : anton 1.34 machine=386
247 : anton 1.189 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
248 : anton 1.31 ;;
249 : anton 1.77 i*86)
250 : anton 1.34 machine=386
251 : anton 1.189 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
252 : pazsan 1.56 CFLAGS_1="$CFLAGS"
253 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
254 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
255 : anton 1.1 ;;
256 : anton 1.133 x86_64)
257 :     machine=amd64
258 :     ;;
259 : anton 1.136 ia64*)
260 :     machine=ia64
261 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
262 :     test "$skipcode" || skipcode="nop.i 0"
263 :     #".skip 16" passes the test below,
264 :     # but gives an assembler error in engine
265 :     ;;
266 : pazsan 1.26 m68k)
267 : anton 1.34 machine=m68k
268 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
269 :     if test "$host_os" = "nextstep3"
270 :     then
271 : pazsan 1.87 AC_LIBOBJ(termios)
272 : pazsan 1.32 fi
273 : pazsan 1.26 ;;
274 : anton 1.1 mips*)
275 : anton 1.34 machine=mips
276 : anton 1.92 #dynamic native code has the following problems on MIPS:
277 :     #
278 :     #1) J/JAL seems relocatable, but is are only
279 :     #relocatable within a 256MB-segment. While we try to
280 :     #get the linker to arrange this, there is no guarantee
281 :     #that this will succeed (and if the user uses a lot of
282 :     #memory, it is likely to fail).
283 :     #
284 :     #2) The way we generate dynamic native code may
285 :     #violate MIPS architectural restrictions (in
286 :     #particular, the delay slots of LW, MFLO, etc.)
287 :     #
288 :     #Therefore we disable dynamic native code by default:
289 : anton 1.136 if test -z $no_dynamic_default; then
290 :     no_dynamic_default=1
291 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
292 :     fi
293 : anton 1.1 ;;
294 : pazsan 1.9 alpha*)
295 : anton 1.34 machine=alpha
296 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
297 :     CFLAGS="$CFLAGS -mieee"
298 : pazsan 1.9 ;;
299 : anton 1.69 power*|rs6000)
300 : anton 1.34 machine=power
301 : anton 1.46 $srcdir/mkinstalldirs arch/power
302 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
303 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
304 : anton 1.165 test x$ac_cv_sizeof_long_long = x &&
305 :     ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
306 :     ac_cv_sizeof_long_long=0
307 : anton 1.31 ;;
308 : anton 1.1 *)
309 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
310 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
311 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
312 : anton 1.34 machine=generic
313 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
314 : anton 1.136 if test -z $no_dynamic_default; then
315 :     no_dynamic_default=1
316 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
317 :     fi
318 : anton 1.1 esac
319 : anton 1.10 AC_SUBST(host)
320 : anton 1.151
321 : pazsan 1.184 MAKEINC=""
322 :    
323 :     echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
324 : pazsan 1.183 if test x$EC_MODE = xtrue
325 :     then
326 : pazsan 1.184 echo "Check for arch/$machine/$platform/gforth.ld"
327 :     if test -f arch/$machine/$platform/gforth.ld
328 : pazsan 1.183 then
329 : pazsan 1.184 LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
330 :     if test x$platform = xnxt; then
331 : pazsan 1.183 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 $LIBS"
332 :     fi
333 :     fi
334 : pazsan 1.184 if test -f arch/$machine/$platform/make.inc
335 :     then
336 :     MAKEINC="include ../arch/$machine/$platform/make.inc"
337 :     fi
338 : pazsan 1.183 fi
339 : pazsan 1.184 AC_SUBST(MAKEINC)
340 : pazsan 1.183
341 : anton 1.151 test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
342 :     AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
343 :     [number of registers in the default stack cache state for gforth-fast and gforth-native])
344 : pazsan 1.146
345 : anton 1.173 test x$GCC_PR15242_WORKAROUND = x ||
346 :     AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
347 :     [force (1) or forbid (0) use of a workaround for a gcc performance bug])
348 :    
349 :     dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
350 :     dnl generation on gccs affected by PR15242])
351 :    
352 :    
353 : pazsan 1.146 if test "${enable_force_ll+set}" = set; then
354 :     ac_includes_default="$ac_includes_default
355 :     #include \"arch/generic/128bit.h\""
356 :     fi
357 : anton 1.103
358 :     dnl the following macro produces a warning with autoconf-2.1
359 :     AC_CHECK_SIZEOF(char *)
360 :     case "$ac_cv_sizeof_char_p" in
361 :     2)
362 :     wordsize=16
363 :     ;;
364 :     4)
365 :     wordsize=32
366 :     ;;
367 :     8)
368 :     wordsize=64
369 :     ;;
370 :     esac
371 :    
372 : pazsan 1.183 AC_CHECK_SIZEOF(void *)
373 :     case "$ac_cv_sizeof_void_p" in
374 :     2)
375 :     vwordsize=16
376 :     ;;
377 :     4)
378 :     vwordsize=32
379 :     ;;
380 :     8)
381 :     vwordsize=64
382 :     ;;
383 :     esac
384 :    
385 : anton 1.103 AC_CHECK_SIZEOF(char)
386 :     AC_CHECK_SIZEOF(short)
387 :     AC_CHECK_SIZEOF(int)
388 :     AC_CHECK_SIZEOF(long)
389 :     AC_CHECK_SIZEOF(long long)
390 :     AC_CHECK_SIZEOF(intptr_t)
391 :     AC_CHECK_SIZEOF(int128_t)
392 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
393 : anton 1.103
394 :     AC_MSG_CHECKING([for a C type for cells])
395 :     ac_cv_int_type_cell=none
396 :     case "$ac_cv_sizeof_char_p" in
397 :     $ac_cv_sizeof_int)
398 :     ac_cv_int_type_cell=int
399 :     ;;
400 :     $ac_cv_sizeof_short)
401 :     ac_cv_int_type_cell=short
402 :     ;;
403 :     $ac_cv_sizeof_char)
404 :     ac_cv_int_type_cell=char
405 :     ;;
406 :     $ac_cv_sizeof_long)
407 :     ac_cv_int_type_cell=long
408 :     ;;
409 :     $ac_cv_sizeof_long_long)
410 :     ac_cv_int_type_cell="long long"
411 :     ;;
412 :     $ac_cv_sizeof_intptr_t)
413 :     ac_cv_int_type_cell="intptr_t"
414 :     ;;
415 :     $ac_cv_sizeof_int128_t)
416 :     ac_cv_int_type_cell="int128_t"
417 :     ;;
418 :     esac
419 :     AC_MSG_RESULT($ac_cv_int_type_cell)
420 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
421 :    
422 : pazsan 1.153 AC_MSG_CHECKING([for a C type for wydes])
423 :     ac_cv_wyde_type_cell=none
424 :     case 2 in
425 :     $ac_cv_sizeof_int)
426 :     ac_cv_wyde_type_cell=int
427 :     ;;
428 :     $ac_cv_sizeof_short)
429 :     ac_cv_wyde_type_cell=short
430 :     ;;
431 :     $ac_cv_sizeof_char)
432 :     ac_cv_wyde_type_cell=char
433 :     ;;
434 :     $ac_cv_sizeof_long)
435 :     ac_cv_wyde_type_cell=long
436 :     ;;
437 :     $ac_cv_sizeof_long_long)
438 :     ac_cv_wyde_type_cell="long long"
439 :     ;;
440 :     $ac_cv_sizeof_intptr_t)
441 :     ac_cv_wyde_type_cell="intptr_t"
442 :     ;;
443 :     $ac_cv_sizeof_int128_t)
444 :     ac_cv_wyde_type_cell="int128_t"
445 :     ;;
446 :     esac
447 :     AC_MSG_RESULT($ac_cv_wyde_type_cell)
448 :     AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
449 :    
450 :     AC_MSG_CHECKING([for a C type for tetrabytes])
451 :     ac_cv_tetrabyte_type_cell=none
452 :     case 4 in
453 :     $ac_cv_sizeof_int)
454 :     ac_cv_tetrabyte_type_cell=int
455 :     ;;
456 :     $ac_cv_sizeof_short)
457 :     ac_cv_tetrabyte_type_cell=short
458 :     ;;
459 :     $ac_cv_sizeof_char)
460 :     ac_cv_tetrabyte_type_cell=char
461 :     ;;
462 :     $ac_cv_sizeof_long)
463 :     ac_cv_tetrabyte_type_cell=long
464 :     ;;
465 :     $ac_cv_sizeof_long_long)
466 :     ac_cv_tetrabyte_type_cell="long long"
467 :     ;;
468 :     $ac_cv_sizeof_intptr_t)
469 :     ac_cv_tetrabyte_type_cell="intptr_t"
470 :     ;;
471 :     $ac_cv_sizeof_int128_t)
472 :     ac_cv_tetrabyte_type_cell="int128_t"
473 :     ;;
474 :     esac
475 :     AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
476 :     AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
477 :    
478 : anton 1.103 AC_MSG_CHECKING([for a C type for double-cells])
479 :     ac_cv_int_type_double_cell=none
480 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
481 :     $ac_cv_sizeof_short)
482 :     ac_cv_int_type_double_cell=short
483 :     ;;
484 :     $ac_cv_sizeof_int)
485 :     ac_cv_int_type_double_cell=int
486 :     ;;
487 :     $ac_cv_sizeof_long)
488 :     ac_cv_int_type_double_cell=long
489 :     ;;
490 :     $ac_cv_sizeof_long_long)
491 :     ac_cv_int_type_double_cell="long long"
492 :     ;;
493 :     $ac_cv_sizeof_intptr_t)
494 :     ac_cv_int_type_double_cell="intptr_t"
495 :     ;;
496 :     $ac_cv_sizeof_int128_t)
497 :     ac_cv_int_type_double_cell="int128_t"
498 :     ;;
499 :     esac
500 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
501 : pazsan 1.144
502 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
503 :     ac_cv_int_type_double_ucell=none
504 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
505 :     $ac_cv_sizeof_short)
506 :     ac_cv_int_type_double_ucell="unsigned short"
507 :     ;;
508 :     $ac_cv_sizeof_int)
509 :     ac_cv_int_type_double_ucell="unsigned int"
510 :     ;;
511 :     $ac_cv_sizeof_long)
512 :     ac_cv_int_type_double_ucell="unsigned long"
513 :     ;;
514 :     $ac_cv_sizeof_long_long)
515 :     ac_cv_int_type_double_ucell="unsigned long long"
516 :     ;;
517 :     $ac_cv_sizeof_intptr_t)
518 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
519 :     ;;
520 :     $ac_cv_sizeof_uint128_t)
521 :     ac_cv_int_type_double_ucell="uint128_t"
522 :     ;;
523 :     esac
524 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
525 :    
526 :     if test "$ac_cv_int_type_double_cell" = none || \
527 :     test "$ac_cv_int_type_double_ucell" = none
528 :     then
529 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
530 :     AC_LIBOBJ(dblsub)
531 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
532 :     else
533 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
534 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
535 : anton 1.103 fi
536 :    
537 :     AC_TYPE_OFF_T
538 :     AC_CHECK_SIZEOF(off_t)
539 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
540 :     ac_small_off_t=$?
541 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
542 : anton 1.1
543 : anton 1.109 ENGINE_FLAGS=
544 :     AC_SUBST(ENGINE_FLAGS)
545 :    
546 :     # Try if GCC understands -fno-gcse
547 :    
548 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
549 :     CFLAGS_1="$CFLAGS"
550 :     CFLAGS="$CFLAGS -fno-gcse"
551 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
552 :     CFLAGS="$CFLAGS_1"
553 :     AC_MSG_RESULT($ac_nogcse)
554 :    
555 :     # Try if GCC understands -fno-strict-aliasing
556 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
557 :     CFLAGS_1="$CFLAGS"
558 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
559 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
560 :     CFLAGS="$CFLAGS_1"
561 :     AC_MSG_RESULT($ac_nostrictaliasing)
562 :    
563 : anton 1.123 # Try if GCC understands -fno-crossjumping
564 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
565 : pazsan 1.88 CFLAGS_1="$CFLAGS"
566 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
567 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
568 : anton 1.109 CFLAGS="$CFLAGS_1"
569 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
570 : pazsan 1.88
571 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
572 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
573 :     CFLAGS_1="$CFLAGS"
574 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
575 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
576 :     CFLAGS="$CFLAGS_1"
577 :     AC_MSG_RESULT($ac_noreorder_blocks)
578 :    
579 : anton 1.189 # Try if GCC understands -falign-labels=1
580 :     AC_MSG_CHECKING([if $CC understands -falign-labels=1])
581 :     CFLAGS_1="$CFLAGS"
582 :     CFLAGS="$CFLAGS -falign-labels=1"
583 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
584 :     CFLAGS="$CFLAGS_1"
585 :     AC_MSG_RESULT($ac_align_labels)
586 :    
587 : anton 1.130 # Try if GCC understands __attribute__((unused))
588 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
589 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
590 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
591 :     AC_MSG_RESULT($MAYBE_UNUSED)
592 :    
593 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
594 : anton 1.61 AC_SUBST(asm_fs)
595 :    
596 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
597 : anton 1.61 AC_SUBST(disasm_fs)
598 :    
599 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
600 : anton 1.114
601 : pazsan 1.39 case "$host_os" in
602 : pazsan 1.157 *win32*)
603 :     # !!!FIXME!!! problems with cygwin and ';' as path separator
604 : anton 1.108 DIRSEP="\\\\"
605 : anton 1.127 PATHSEP=";"
606 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
607 :     # handling of .com files.
608 :     #$COMSPEC contains the name of the Windows shell;
609 :     # the ./ is there, because the bash does not recognize
610 :     # absolute DOS filenames
611 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
612 : pazsan 1.39 ;;
613 : anton 1.97 *darwin*)
614 :     #Darwin uses some funny preprocessor by default; eliminate it:
615 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
616 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
617 : anton 1.98 DIRSEP="/"
618 : anton 1.127 PATHSEP=":"
619 : anton 1.141 DEFAULTSYSTEMPREFIX=""
620 : anton 1.98 ;;
621 : pazsan 1.39 *)
622 : pazsan 1.88 DIRSEP="/"
623 : anton 1.127 PATHSEP=":"
624 : anton 1.141 DEFAULTSYSTEMPREFIX=""
625 : pazsan 1.39 ;;
626 :     esac
627 : pazsan 1.88 AC_SUBST(DIRSEP)
628 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
629 : anton 1.127 AC_SUBST(PATHSEP)
630 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
631 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
632 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
633 : pazsan 1.39
634 : anton 1.170 #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
635 : anton 1.172 #This magic incantation seems to be completely undocumented.
636 :     AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
637 : anton 1.170
638 : anton 1.1 dnl Now a little support for DOS/DJGCC
639 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
640 : anton 1.172 GFORTH_EXE=""
641 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
642 : anton 1.172 GFORTHFAST_EXE=""
643 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
644 :     GFORTHITC_EXE=""
645 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
646 :     GFORTHDITC_EXE=""
647 : anton 1.27
648 :     AC_SUBST(FORTHSIZES)
649 : anton 1.24
650 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
651 :     dnl then
652 :     dnl PEEPHOLEFLAG="true"
653 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
654 :     dnl else
655 :     dnl PEEPHOLEFLAG="false"
656 :     dnl fi
657 :     PEEPHOLEFLAG="true"
658 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
659 :    
660 : anton 1.1 dnl copy commands for systems that don't have links
661 : pazsan 1.29 AC_SUBST(LINK_KERNL)
662 :     LINK_KERNL=""
663 : anton 1.1
664 :     #if test $host_os=dos
665 :     #then
666 :     # echo Configuring for DOS!!!
667 :     # MAKE_EXE="coff2exe gforth"
668 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
669 : anton 1.1 #fi
670 :    
671 :     dnl the following macro produces a warning with autoconf-2.1
672 :     AC_C_BIGENDIAN
673 : pazsan 1.23 AC_SUBST(KERNEL)
674 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
675 :     if test $ac_cv_c_bigendian = yes; then
676 :     bytesex=b
677 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
678 : anton 1.1 else
679 :     bytesex=l
680 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
681 : anton 1.1 fi
682 :    
683 : anton 1.91 #check how to do asm(".skip 16")
684 : anton 1.169 #echo "CFLAGS=$CFLAGS"
685 :     #echo "ac_link=$ac_link"
686 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
687 : anton 1.136 if test -z "$skipcode"; then
688 : anton 1.148 skipcode=no
689 :     CFLAGS_1="$CFLAGS"
690 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
691 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
692 :     do
693 : anton 1.91 AC_TRY_RUN(
694 : anton 1.136 [int foo(int,int,int);
695 : anton 1.91 main()
696 :     {
697 : anton 1.136 exit(foo(0,0,0)!=16);
698 : anton 1.91 }
699 : anton 1.136 int foo(int x, int y, int z)
700 : anton 1.91 {
701 : anton 1.136 static void *labels[]={&&label1, &&label2};
702 : anton 1.91 if (x) {
703 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
704 : anton 1.91 label1:
705 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
706 : anton 1.136 label2: ;
707 :     }
708 :     {
709 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
710 :     return labels[1]-labels[0];
711 : anton 1.91 }
712 : anton 1.136 }]
713 : anton 1.92 ,skipcode=$i; break
714 :     ,,)
715 : anton 1.136 done
716 : anton 1.148 CFLAGS=$CFLAGS_1
717 : anton 1.136 fi
718 : anton 1.92 AC_MSG_RESULT($skipcode)
719 :     if test "$skipcode" = no
720 :     then
721 : anton 1.136 if test -z $no_dynamic_default; then
722 :     no_dynamic_default=1
723 :     AC_MSG_WARN(Disabling default dynamic native code generation)
724 :     fi
725 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
726 :     else
727 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
728 :     fi
729 : anton 1.91
730 : anton 1.174 AC_MSG_CHECKING([if and how we can do comments in asm statements])
731 :     #the point here is to get asm statements that look different to
732 :     #gcc's "optimizer"
733 :     if test -z "$asmcomment"; then
734 :     asmcomment=no
735 :     CFLAGS_1="$CFLAGS"
736 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
737 : anton 1.176 for i in '"# "' '"! "' '"; "'; do
738 : anton 1.174 AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
739 :     done
740 :     CFLAGS=$CFLAGS_1
741 :     fi
742 :     AC_MSG_RESULT($asmcomment)
743 :     if test "$asmcomment" != no
744 :     then
745 :     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
746 :     fi
747 :    
748 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
749 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
750 : anton 1.91
751 : anton 1.1 dnl Checks for programs.
752 :     AC_PROG_LN_S
753 : anton 1.95 AC_PROG_INSTALL
754 : pazsan 1.163 AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
755 : anton 1.1
756 :     dnl Checks for library functions
757 : anton 1.2 dnl This check is just for making later checks link with libm.
758 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
759 :     AC_CHECK_LIB(m,asin)
760 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
761 : pazsan 1.152 dnl check for libffi 2.x
762 :     AC_CHECK_LIB(ffi,ffi_call)
763 :     if test $ac_cv_lib_ffi_ffi_call = yes
764 :     then
765 :     LIBFFIFLAG="true"
766 :     FFCALLFLAG="false"
767 :     OLDCALLFLAG="false"
768 :     AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
769 :     else
770 : pazsan 1.124 dnl check for ffcall libraries
771 :     dnl unfortunately, these four calls are separated out into a library each.
772 :     AC_CHECK_LIB(avcall,__builtin_avcall)
773 :     AC_CHECK_LIB(callback,__vacall_r)
774 :     AC_CHECK_LIB(vacall,vacall)
775 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
776 : pazsan 1.152 LIBFFIFLAG="false"
777 : anton 1.125 FFCALLFLAG="false"
778 : pazsan 1.129 OLDCALLFLAG="true"
779 :     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])
780 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
781 : pazsan 1.152 fi
782 :     AC_SUBST(LIBFFIFLAG)
783 : anton 1.125 AC_SUBST(FFCALLFLAG)
784 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
785 : pazsan 1.32 if test "$host_os" != "nextstep3"
786 :     then
787 :     AC_FUNC_MEMCMP
788 :     fi
789 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
790 : anton 1.97 AC_FUNC_FSEEKO
791 : anton 1.186 AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
792 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
793 : anton 1.19 AC_DECL_SYS_SIGLIST
794 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
795 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
796 :     AC_REPLACE_FUNCS(rint ecvt)
797 : anton 1.1 dnl No check for select, because our replacement is no good under
798 :     dnl anything but DOS
799 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
800 : anton 1.63 AC_FUNC_FNMATCH
801 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
802 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
803 : anton 1.34 AM_PATH_LISPDIR
804 : anton 1.1
805 : pazsan 1.183 kernel_fi=kernl${vwordsize}${bytesex}.fi
806 : pazsan 1.178 include_fi=kernl${wordsize}${bytesex}${EC}.fi
807 : pazsan 1.23 AC_SUBST(kernel_fi)
808 : pazsan 1.178 AC_SUBST(include_fi)
809 : jwilke 1.50
810 : anton 1.76 #this breaks bindists
811 :     #dnl replace srource directory by absolute value
812 :     #if test $srcdir = "."; then srcdir=`pwd`
813 :     #fi
814 : anton 1.8
815 : anton 1.188 echo "version=$PACKAGE_VERSION"
816 :    
817 : anton 1.34 AC_SUBST(machine)
818 : anton 1.95 AC_CONFIG_FILES([
819 : anton 1.31 Makefile
820 : pazsan 1.45 Makedist
821 : anton 1.43 gforthmi
822 : anton 1.80 vmgen
823 : pazsan 1.79 machpc.fs
824 : pazsan 1.159 envos.fs
825 : anton 1.35 engine/Makefile
826 : anton 1.188 engine/libcc.h
827 : pazsan 1.161 doc/version.texi
828 :     build-ec ])
829 : anton 1.95 AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
830 : anton 1.43 chmod +x gforthmi
831 : anton 1.80 chmod +x vmgen
832 : pazsan 1.162 chmod +x build-ec
833 : anton 1.188 test -d kernel||mkdir kernel
834 :     $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
835 :     ln -s ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]])
836 : anton 1.95 AC_OUTPUT
837 : anton 1.44

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