[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 : anton 1.143 #Copyright (C) 1995,1996,1997,1998,2000,2003,2004 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 1.136 AC_INIT([gforth],[0.6.2-20030910],[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 1.136 UPDATED="September 10, 2003"
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 :     AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
104 :     AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
105 :     AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
106 :     AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
107 :     AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
108 :     AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
109 :     AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
110 :     AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
111 : pazsan 1.144 AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
112 : anton 1.123 AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
113 :     AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
114 : anton 1.136 AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
115 : anton 1.82
116 : anton 1.96 #set up feature test macros, so the tests get them right:
117 :     # turn on all POSIX, SUSv3, and GNU features if available
118 : anton 1.97 AC_GNU_SOURCE
119 :     dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
120 :    
121 :     dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
122 :     dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
123 :     dnl but not for _XOPEN_SOURCE)
124 :     dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
125 :     dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
126 :     dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
127 : anton 1.96 # turn on large file support with 64-bit off_t where available
128 : anton 1.105 AC_SYS_LARGEFILE
129 :     dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
130 :     dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
131 : anton 1.96
132 : anton 1.82 #currently we force direct threading this way. Eventually we should
133 :     #setup in the arch and engine files right
134 : anton 1.16
135 : pazsan 1.15 AC_PROG_CC
136 :    
137 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
138 : pazsan 1.9
139 : pazsan 1.15 AC_SUBST(CC)
140 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
141 : anton 1.7
142 : pazsan 1.128 AC_MSG_CHECKING(make type)
143 :     make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
144 :    
145 :     GNUMAKE='#'
146 :     test "$make_type" = "GNU Make" && GNUMAKE=''
147 :    
148 :     AC_MSG_RESULT($make_type)
149 :    
150 :     AC_SUBST(GNUMAKE)
151 :    
152 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
153 :     OLDLDFLAGS=$LDFLAGS
154 :     LDFLAGS="$LDFLAGS -export-dynamic"
155 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
156 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
157 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
158 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
159 :     AC_MSG_RESULT($ac_export_dynamic)
160 :    
161 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
162 :     #gforth will run; the system on which configure will run is the `build'
163 :     AC_CANONICAL_HOST
164 :     case "$host_cpu" in
165 : anton 1.136 arm*)
166 :     machine=arm
167 :     CFLAGS="$CFLAGS -fomit-frame-pointer"
168 :     if test -z $no_dynamic_default; then
169 :     no_dynamic_default=1
170 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
171 :     fi
172 :     ;;
173 : anton 1.1 hppa*)
174 : anton 1.34 machine=hppa
175 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
176 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
177 : anton 1.134 #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
178 :     LDFLAGS="$LDFLAGS -Xlinker -N"
179 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
180 : anton 1.1 ;;
181 :     sparc*)
182 : anton 1.34 machine=sparc
183 : anton 1.1 ;;
184 : anton 1.31 i386)
185 : anton 1.34 machine=386
186 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
187 : anton 1.31 ;;
188 :     i486)
189 : anton 1.34 machine=386
190 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
191 :     ;;
192 : anton 1.77 i*86)
193 : anton 1.34 machine=386
194 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
195 : pazsan 1.56 CFLAGS_1="$CFLAGS"
196 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
197 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
198 : anton 1.1 ;;
199 : anton 1.133 x86_64)
200 :     machine=amd64
201 :     ;;
202 : anton 1.136 ia64*)
203 :     machine=ia64
204 :     AC_LIBOBJ(../arch/ia64/flush_icache_block)
205 :     test "$skipcode" || skipcode="nop.i 0"
206 :     #".skip 16" passes the test below,
207 :     # but gives an assembler error in engine
208 :     ;;
209 : pazsan 1.26 m68k)
210 : anton 1.34 machine=m68k
211 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
212 :     if test "$host_os" = "nextstep3"
213 :     then
214 : pazsan 1.87 AC_LIBOBJ(termios)
215 : pazsan 1.32 fi
216 : pazsan 1.26 ;;
217 : anton 1.1 mips*)
218 : anton 1.34 machine=mips
219 : anton 1.92 #dynamic native code has the following problems on MIPS:
220 :     #
221 :     #1) J/JAL seems relocatable, but is are only
222 :     #relocatable within a 256MB-segment. While we try to
223 :     #get the linker to arrange this, there is no guarantee
224 :     #that this will succeed (and if the user uses a lot of
225 :     #memory, it is likely to fail).
226 :     #
227 :     #2) The way we generate dynamic native code may
228 :     #violate MIPS architectural restrictions (in
229 :     #particular, the delay slots of LW, MFLO, etc.)
230 :     #
231 :     #Therefore we disable dynamic native code by default:
232 : anton 1.136 if test -z $no_dynamic_default; then
233 :     no_dynamic_default=1
234 :     AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
235 :     fi
236 : anton 1.1 ;;
237 : pazsan 1.9 alpha*)
238 : anton 1.34 machine=alpha
239 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
240 :     CFLAGS="$CFLAGS -mieee"
241 : pazsan 1.9 ;;
242 : anton 1.69 power*|rs6000)
243 : anton 1.34 machine=power
244 : anton 1.46 $srcdir/mkinstalldirs arch/power
245 : anton 1.138 AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
246 : anton 1.103 #long long is broken on (at least) gcc-2.95.* for PPC
247 : anton 1.104 test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
248 : anton 1.31 ;;
249 : anton 1.1 *)
250 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
251 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
252 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
253 : anton 1.34 machine=generic
254 : anton 1.97 #I-cache flushing would be needed for dynamic code generation
255 : anton 1.136 if test -z $no_dynamic_default; then
256 :     no_dynamic_default=1
257 :     AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
258 :     fi
259 : anton 1.1 esac
260 : anton 1.10 AC_SUBST(host)
261 : pazsan 1.146
262 :     if test "${enable_force_ll+set}" = set; then
263 :     ac_includes_default="$ac_includes_default
264 :     #include \"arch/generic/128bit.h\""
265 :     fi
266 : anton 1.103
267 :     dnl the following macro produces a warning with autoconf-2.1
268 :     AC_CHECK_SIZEOF(char *)
269 :     case "$ac_cv_sizeof_char_p" in
270 :     2)
271 :     wordsize=16
272 :     ;;
273 :     4)
274 :     wordsize=32
275 :     ;;
276 :     8)
277 :     wordsize=64
278 :     ;;
279 :     esac
280 :    
281 :     AC_CHECK_SIZEOF(char)
282 :     AC_CHECK_SIZEOF(short)
283 :     AC_CHECK_SIZEOF(int)
284 :     AC_CHECK_SIZEOF(long)
285 :     AC_CHECK_SIZEOF(long long)
286 :     AC_CHECK_SIZEOF(intptr_t)
287 :     AC_CHECK_SIZEOF(int128_t)
288 : pazsan 1.144 AC_CHECK_SIZEOF(uint128_t)
289 : anton 1.103
290 :     AC_MSG_CHECKING([for a C type for cells])
291 :     ac_cv_int_type_cell=none
292 :     case "$ac_cv_sizeof_char_p" in
293 :     $ac_cv_sizeof_int)
294 :     ac_cv_int_type_cell=int
295 :     ;;
296 :     $ac_cv_sizeof_short)
297 :     ac_cv_int_type_cell=short
298 :     ;;
299 :     $ac_cv_sizeof_char)
300 :     ac_cv_int_type_cell=char
301 :     ;;
302 :     $ac_cv_sizeof_long)
303 :     ac_cv_int_type_cell=long
304 :     ;;
305 :     $ac_cv_sizeof_long_long)
306 :     ac_cv_int_type_cell="long long"
307 :     ;;
308 :     $ac_cv_sizeof_intptr_t)
309 :     ac_cv_int_type_cell="intptr_t"
310 :     ;;
311 :     $ac_cv_sizeof_int128_t)
312 :     ac_cv_int_type_cell="int128_t"
313 :     ;;
314 :     esac
315 :     AC_MSG_RESULT($ac_cv_int_type_cell)
316 :     AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
317 :    
318 :     AC_MSG_CHECKING([for a C type for double-cells])
319 :     ac_cv_int_type_double_cell=none
320 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
321 :     $ac_cv_sizeof_short)
322 :     ac_cv_int_type_double_cell=short
323 :     ;;
324 :     $ac_cv_sizeof_int)
325 :     ac_cv_int_type_double_cell=int
326 :     ;;
327 :     $ac_cv_sizeof_long)
328 :     ac_cv_int_type_double_cell=long
329 :     ;;
330 :     $ac_cv_sizeof_long_long)
331 :     ac_cv_int_type_double_cell="long long"
332 :     ;;
333 :     $ac_cv_sizeof_intptr_t)
334 :     ac_cv_int_type_double_cell="intptr_t"
335 :     ;;
336 :     $ac_cv_sizeof_int128_t)
337 :     ac_cv_int_type_double_cell="int128_t"
338 :     ;;
339 :     esac
340 :     AC_MSG_RESULT($ac_cv_int_type_double_cell)
341 : pazsan 1.144
342 :     AC_MSG_CHECKING([for a C type for unsigned double-cells])
343 :     ac_cv_int_type_double_ucell=none
344 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
345 :     $ac_cv_sizeof_short)
346 :     ac_cv_int_type_double_ucell="unsigned short"
347 :     ;;
348 :     $ac_cv_sizeof_int)
349 :     ac_cv_int_type_double_ucell="unsigned int"
350 :     ;;
351 :     $ac_cv_sizeof_long)
352 :     ac_cv_int_type_double_ucell="unsigned long"
353 :     ;;
354 :     $ac_cv_sizeof_long_long)
355 :     ac_cv_int_type_double_ucell="unsigned long long"
356 :     ;;
357 :     $ac_cv_sizeof_intptr_t)
358 :     ac_cv_int_type_double_ucell="unsigned intptr_t"
359 :     ;;
360 :     $ac_cv_sizeof_uint128_t)
361 :     ac_cv_int_type_double_ucell="uint128_t"
362 :     ;;
363 :     esac
364 :     AC_MSG_RESULT($ac_cv_int_type_double_ucell)
365 :    
366 :     if test "$ac_cv_int_type_double_cell" = none || \
367 :     test "$ac_cv_int_type_double_ucell" = none
368 :     then
369 : anton 1.103 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
370 :     AC_LIBOBJ(dblsub)
371 :     AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
372 :     else
373 :     AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
374 : pazsan 1.144 AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
375 : anton 1.103 fi
376 :    
377 :     AC_TYPE_OFF_T
378 :     AC_CHECK_SIZEOF(off_t)
379 :     test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
380 :     ac_small_off_t=$?
381 :     AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
382 : anton 1.1
383 : anton 1.109 ENGINE_FLAGS=
384 :     AC_SUBST(ENGINE_FLAGS)
385 :    
386 :     # Try if GCC understands -fno-gcse
387 :    
388 :     AC_MSG_CHECKING([if $CC understands -fno-gcse])
389 :     CFLAGS_1="$CFLAGS"
390 :     CFLAGS="$CFLAGS -fno-gcse"
391 :     AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
392 :     CFLAGS="$CFLAGS_1"
393 :     AC_MSG_RESULT($ac_nogcse)
394 :    
395 :     # Try if GCC understands -fno-strict-aliasing
396 :     AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
397 :     CFLAGS_1="$CFLAGS"
398 :     CFLAGS="$CFLAGS -fno-strict-aliasing"
399 :     AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
400 :     CFLAGS="$CFLAGS_1"
401 :     AC_MSG_RESULT($ac_nostrictaliasing)
402 :    
403 : anton 1.123 # Try if GCC understands -fno-crossjumping
404 :     AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
405 : pazsan 1.88 CFLAGS_1="$CFLAGS"
406 : anton 1.123 CFLAGS="$CFLAGS -fno-crossjumping"
407 : anton 1.125 AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
408 : anton 1.109 CFLAGS="$CFLAGS_1"
409 : pazsan 1.124 AC_MSG_RESULT($ac_nocrossjumping)
410 : pazsan 1.88
411 : pazsan 1.137 # Try if GCC understands -fno-reorder-blocks
412 :     AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
413 :     CFLAGS_1="$CFLAGS"
414 :     CFLAGS="$CFLAGS -fno-reorder-blocks"
415 :     AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
416 :     CFLAGS="$CFLAGS_1"
417 :     AC_MSG_RESULT($ac_noreorder_blocks)
418 :    
419 : anton 1.130 # Try if GCC understands __attribute__((unused))
420 :     AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
421 :     AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
422 :     AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
423 :     AC_MSG_RESULT($MAYBE_UNUSED)
424 :    
425 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
426 : anton 1.61 AC_SUBST(asm_fs)
427 :    
428 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
429 : anton 1.61 AC_SUBST(disasm_fs)
430 :    
431 : anton 1.116 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
432 : anton 1.114
433 : pazsan 1.39 case "$host_os" in
434 : anton 1.107 *win32|cygwin)
435 : anton 1.108 DIRSEP="\\\\"
436 : anton 1.127 PATHSEP=";"
437 : anton 1.142 #we want the builtins of command.com/cmd.exe and its
438 :     # handling of .com files.
439 :     #$COMSPEC contains the name of the Windows shell;
440 :     # the ./ is there, because the bash does not recognize
441 :     # absolute DOS filenames
442 :     DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
443 : pazsan 1.39 ;;
444 : anton 1.97 *darwin*)
445 :     #Darwin uses some funny preprocessor by default; eliminate it:
446 : anton 1.127 AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
447 : anton 1.120 CFLAGS="$CFLAGS -no-cpp-precomp"
448 : anton 1.98 DIRSEP="/"
449 : anton 1.127 PATHSEP=":"
450 : anton 1.141 DEFAULTSYSTEMPREFIX=""
451 : anton 1.98 ;;
452 : pazsan 1.39 *)
453 : pazsan 1.88 DIRSEP="/"
454 : anton 1.127 PATHSEP=":"
455 : anton 1.141 DEFAULTSYSTEMPREFIX=""
456 : pazsan 1.39 ;;
457 :     esac
458 : pazsan 1.88 AC_SUBST(DIRSEP)
459 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
460 : anton 1.127 AC_SUBST(PATHSEP)
461 :     AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
462 : anton 1.141 AC_SUBST(DEFAULTSYSTEMPREFIX)
463 :     AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
464 : pazsan 1.39
465 : anton 1.1 dnl Now a little support for DOS/DJGCC
466 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
467 :     GFORTH_EXE=""
468 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
469 :     GFORTHFAST_EXE=""
470 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
471 :     GFORTHITC_EXE=""
472 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
473 :     GFORTHDITC_EXE=""
474 : anton 1.27
475 :     AC_SUBST(FORTHSIZES)
476 : anton 1.24
477 : anton 1.104 dnl if test "$PEEPHOLE" = "yes"
478 :     dnl then
479 :     dnl PEEPHOLEFLAG="true"
480 :     dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
481 :     dnl else
482 :     dnl PEEPHOLEFLAG="false"
483 :     dnl fi
484 :     PEEPHOLEFLAG="true"
485 : pazsan 1.79 AC_SUBST(PEEPHOLEFLAG)
486 :    
487 : anton 1.1 dnl copy commands for systems that don't have links
488 : pazsan 1.29 AC_SUBST(LINK_KERNL)
489 :     LINK_KERNL=""
490 : anton 1.1
491 :     #if test $host_os=dos
492 :     #then
493 :     # echo Configuring for DOS!!!
494 :     # MAKE_EXE="coff2exe gforth"
495 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
496 : anton 1.1 #fi
497 :    
498 :     dnl the following macro produces a warning with autoconf-2.1
499 :     AC_C_BIGENDIAN
500 : pazsan 1.23 AC_SUBST(KERNEL)
501 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
502 :     if test $ac_cv_c_bigendian = yes; then
503 :     bytesex=b
504 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
505 : anton 1.1 else
506 :     bytesex=l
507 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
508 : anton 1.1 fi
509 :    
510 : anton 1.91 #check how to do asm(".skip 16")
511 : anton 1.148 echo "CFLAGS=$CFLAGS"
512 :     echo "ac_link=$ac_link"
513 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
514 : anton 1.136 if test -z "$skipcode"; then
515 : anton 1.148 skipcode=no
516 :     CFLAGS_1="$CFLAGS"
517 :     CFLAGS="$CFLAGS $ENGINE_FLAGS"
518 : anton 1.136 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
519 :     do
520 : anton 1.91 AC_TRY_RUN(
521 : anton 1.136 [int foo(int,int,int);
522 : anton 1.91 main()
523 :     {
524 : anton 1.136 exit(foo(0,0,0)!=16);
525 : anton 1.91 }
526 : anton 1.136 int foo(int x, int y, int z)
527 : anton 1.91 {
528 : anton 1.136 static void *labels[]={&&label1, &&label2};
529 : anton 1.91 if (x) {
530 : anton 1.136 y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
531 : anton 1.91 label1:
532 : anton 1.148 asm("$i"); /* or ".space 16" or somesuch */
533 : anton 1.136 label2: ;
534 :     }
535 :     {
536 :     if (y) goto *labels[z]; /* workaround for gcc PR12108 */
537 :     return labels[1]-labels[0];
538 : anton 1.91 }
539 : anton 1.136 }]
540 : anton 1.92 ,skipcode=$i; break
541 :     ,,)
542 : anton 1.136 done
543 : anton 1.148 CFLAGS=$CFLAGS_1
544 : anton 1.136 fi
545 : anton 1.92 AC_MSG_RESULT($skipcode)
546 :     if test "$skipcode" = no
547 :     then
548 : anton 1.136 if test -z $no_dynamic_default; then
549 :     no_dynamic_default=1
550 :     AC_MSG_WARN(Disabling default dynamic native code generation)
551 :     fi
552 : anton 1.92 AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
553 :     else
554 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
555 :     fi
556 : anton 1.91
557 : anton 1.136 test "$no_dynamic_default" || no_dynamic_default=0
558 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
559 : anton 1.91
560 : anton 1.1 dnl Checks for programs.
561 :     AC_PROG_LN_S
562 : anton 1.95 AC_PROG_INSTALL
563 : anton 1.1
564 :     dnl Checks for library functions
565 : anton 1.2 dnl This check is just for making later checks link with libm.
566 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
567 :     AC_CHECK_LIB(m,asin)
568 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
569 : pazsan 1.124 dnl check for ffcall libraries
570 :     dnl unfortunately, these four calls are separated out into a library each.
571 :     AC_CHECK_LIB(avcall,__builtin_avcall)
572 :     AC_CHECK_LIB(callback,__vacall_r)
573 :     AC_CHECK_LIB(vacall,vacall)
574 :     AC_CHECK_LIB(trampoline,alloc_trampoline)
575 : anton 1.125 FFCALLFLAG="false"
576 : pazsan 1.129 OLDCALLFLAG="true"
577 :     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])
578 :     test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
579 : anton 1.125 AC_SUBST(FFCALLFLAG)
580 : pazsan 1.129 AC_SUBST(OLDCALLFLAG)
581 : pazsan 1.32 if test "$host_os" != "nextstep3"
582 :     then
583 :     AC_FUNC_MEMCMP
584 :     fi
585 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
586 : anton 1.97 AC_FUNC_FSEEKO
587 :     AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
588 : anton 1.111 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
589 : anton 1.19 AC_DECL_SYS_SIGLIST
590 : anton 1.138 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
591 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
592 :     AC_REPLACE_FUNCS(rint ecvt)
593 : anton 1.1 dnl No check for select, because our replacement is no good under
594 :     dnl anything but DOS
595 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
596 : anton 1.63 AC_FUNC_FNMATCH
597 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
598 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
599 : anton 1.34 AM_PATH_LISPDIR
600 : anton 1.1
601 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
602 :     AC_SUBST(kernel_fi)
603 : jwilke 1.50
604 : anton 1.76 #this breaks bindists
605 :     #dnl replace srource directory by absolute value
606 :     #if test $srcdir = "."; then srcdir=`pwd`
607 :     #fi
608 : anton 1.8
609 : anton 1.34 AC_SUBST(machine)
610 : anton 1.95 AC_CONFIG_FILES([
611 : anton 1.31 Makefile
612 : pazsan 1.45 Makedist
613 : anton 1.43 gforthmi
614 : anton 1.80 vmgen
615 : pazsan 1.79 machpc.fs
616 : anton 1.35 engine/Makefile
617 : anton 1.95 doc/version.texi ])
618 :     AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
619 : anton 1.43 chmod +x gforthmi
620 : anton 1.80 chmod +x vmgen
621 : anton 1.95 test -d kernel||mkdir kernel]],[[]])
622 :     AC_OUTPUT
623 : anton 1.44

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