[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 1.73 #Copyright (C) 1995,1996,1997,1998,2000 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 1.34 dnl We use some automake macros here,
22 :     dnl but don't use automake for creating Makefile.in
23 : anton 1.94 AC_INIT(gforth,0.5.9-20021227,https://savannah.gnu.org/bugs/?func=addbug&group=gforth)
24 : anton 1.47 #snapshots have numbers major.minor.release-YYYYMMDD
25 : anton 1.92 #note that lexicographic ordering must be heeded.
26 : anton 1.47 #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
27 : anton 1.94 UPDATED="27 December 2002"
28 : anton 1.84 AC_SUBST(UPDATED)
29 : anton 1.94 AC_CONFIG_HEADERS(engine/config.h)
30 :     dnl AM_CYGWIN32
31 : anton 1.14
32 : anton 1.92 #default setting that may be changed later:
33 :     no_dynamic_default=0
34 :    
35 : anton 1.1 AC_ARG_ENABLE(force-reg,
36 :     [ --enable-force-reg Use explicit register declarations if they appear in
37 :     the machine.h file. This can cause a good speedup,
38 :     but also incorrect code with some gcc versions on
39 :     some processors (default disabled).],
40 : pazsan 1.89 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)]))
41 : anton 1.1
42 : pazsan 1.9 AC_ARG_WITH(debug,
43 : anton 1.10 [ --with-debug specifies option -g to compile with debug info (default)
44 : anton 1.27 --without-debug omits the -g switch and creates smaller images on
45 :     machines where "strip" has problems with gcc style
46 :     debugging informations.],
47 : pazsan 1.9 if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
48 :    
49 : pazsan 1.79 PEEPHOLE="yes"
50 :     AC_ARG_WITH(peephole,
51 :     [ --with-peephole Enable peephole optimization (default)
52 :     --without-peephole disables peephole optimization. Creates smaller,
53 :     but slower images.],
54 :     PEEPHOLE="$withval")
55 : anton 1.82
56 :     #currently we force direct threading this way. Eventually we should
57 :     #setup in the arch and engine files right
58 : pazsan 1.79
59 : anton 1.16 CFLAGS=$CFLAGS
60 :    
61 : pazsan 1.15 AC_PROG_CC
62 :    
63 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
64 : pazsan 1.9
65 : pazsan 1.15 AC_SUBST(CC)
66 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
67 : anton 1.7
68 : anton 1.92 AC_MSG_CHECKING(gcc version)
69 :     gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
70 :     AC_MSG_RESULT($gcc_version)
71 :     if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
72 :     then
73 :     no_dynamic_default=1
74 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
75 :     fi
76 :    
77 : anton 1.10 dnl the following macro produces a warning with autoconf-2.1
78 :     AC_CHECK_SIZEOF(char *)
79 :     case "$ac_cv_sizeof_char_p" in
80 :     2)
81 :     wordsize=16
82 :     ;;
83 :     4)
84 :     wordsize=32
85 :     ;;
86 :     8)
87 :     wordsize=64
88 :     ;;
89 :     esac
90 : pazsan 1.9
91 : pazsan 1.40 AC_CHECK_SIZEOF(char)
92 : pazsan 1.23 AC_CHECK_SIZEOF(short)
93 :     AC_CHECK_SIZEOF(int)
94 :     AC_CHECK_SIZEOF(long)
95 :     AC_CHECK_SIZEOF(long long)
96 :    
97 : anton 1.92 AC_MSG_CHECKING([for a C type for cells])
98 : pazsan 1.23 ac_cv_int_type_cell=none
99 :     case "$ac_cv_sizeof_char_p" in
100 : pazsan 1.40 $ac_cv_sizeof_int)
101 :     ac_cv_int_type_cell=int
102 :     ;;
103 : pazsan 1.23 $ac_cv_sizeof_short)
104 :     ac_cv_int_type_cell=short
105 :     ;;
106 : pazsan 1.40 $ac_cv_sizeof_char)
107 :     ac_cv_int_type_cell=char
108 : pazsan 1.23 ;;
109 :     $ac_cv_sizeof_long)
110 :     ac_cv_int_type_cell=long
111 :     ;;
112 :     $ac_cv_sizeof_long_long)
113 :     ac_cv_int_type_cell="long long"
114 :     ;;
115 :     esac
116 : anton 1.92 AC_MSG_RESULT($ac_cv_int_type_cell)
117 : pazsan 1.89 AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
118 : pazsan 1.23
119 : anton 1.92 AC_MSG_CHECKING([for a C type for double-cells])
120 : pazsan 1.23 ac_cv_int_type_double_cell=none
121 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
122 :     $ac_cv_sizeof_short)
123 :     ac_cv_int_type_double_cell=short
124 :     ;;
125 :     $ac_cv_sizeof_int)
126 :     ac_cv_int_type_double_cell=int
127 :     ;;
128 :     $ac_cv_sizeof_long)
129 :     ac_cv_int_type_double_cell=long
130 :     ;;
131 :     $ac_cv_sizeof_long_long)
132 :     ac_cv_int_type_double_cell="long long"
133 :     ;;
134 :     esac
135 : anton 1.92 AC_MSG_RESULT($ac_cv_int_type_double_cell)
136 : anton 1.21 if test "$ac_cv_int_type_double_cell" = none; then
137 : anton 1.92 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
138 : pazsan 1.87 AC_LIBOBJ(dblsub)
139 : pazsan 1.89 AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
140 : pazsan 1.23 else
141 : anton 1.92 AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
142 : anton 1.20 fi
143 :    
144 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
145 :     OLDLDFLAGS=$LDFLAGS
146 :     LDFLAGS="$LDFLAGS -export-dynamic"
147 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
148 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
149 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
150 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
151 :     AC_MSG_RESULT($ac_export_dynamic)
152 :    
153 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
154 :     #gforth will run; the system on which configure will run is the `build'
155 :     AC_CANONICAL_HOST
156 :     case "$host_cpu" in
157 :     hppa*)
158 : anton 1.34 machine=hppa
159 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
160 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
161 : jwilke 1.50 LDFLAGS="$LDFLAGS -Xlinker -N"
162 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
163 : anton 1.1 ;;
164 :     sparc*)
165 : anton 1.34 machine=sparc
166 : anton 1.1 ;;
167 : anton 1.31 i386)
168 : anton 1.34 machine=386
169 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
170 : anton 1.31 ;;
171 :     i486)
172 : anton 1.34 machine=386
173 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
174 :     ;;
175 : anton 1.77 i*86)
176 : anton 1.34 machine=386
177 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
178 : pazsan 1.56 CFLAGS_1="$CFLAGS"
179 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
180 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
181 : anton 1.1 ;;
182 : anton 1.72 ia64*)
183 :     machine=ia64
184 :     ;;
185 : pazsan 1.26 m68k)
186 : anton 1.34 machine=m68k
187 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
188 :     if test "$host_os" = "nextstep3"
189 :     then
190 : pazsan 1.87 AC_LIBOBJ(termios)
191 : pazsan 1.32 fi
192 : pazsan 1.26 ;;
193 : anton 1.1 mips*)
194 : anton 1.34 machine=mips
195 : anton 1.92 #dynamic native code has the following problems on MIPS:
196 :     #
197 :     #1) J/JAL seems relocatable, but is are only
198 :     #relocatable within a 256MB-segment. While we try to
199 :     #get the linker to arrange this, there is no guarantee
200 :     #that this will succeed (and if the user uses a lot of
201 :     #memory, it is likely to fail).
202 :     #
203 :     #2) The way we generate dynamic native code may
204 :     #violate MIPS architectural restrictions (in
205 :     #particular, the delay slots of LW, MFLO, etc.)
206 :     #
207 :     #Therefore we disable dynamic native code by default:
208 :     no_dynamic_default=1
209 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
210 : anton 1.7 #link text and data segment into the same 256M region!
211 : anton 1.49 AC_MSG_CHECKING([whether the linker accepts -T])
212 :     OLDLDFLAGS=$LDFLAGS
213 :     LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
214 :     AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
215 :     test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
216 :     AC_MSG_RESULT($ac_link_mips_t)
217 : anton 1.37 AC_MSG_CHECKING([whether the linker accepts -D])
218 :     OLDLDFLAGS=$LDFLAGS
219 : anton 1.49 LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
220 : anton 1.37 AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
221 : anton 1.49 test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
222 : anton 1.37 AC_MSG_RESULT($ac_link_mips_d)
223 : anton 1.1 ;;
224 : pazsan 1.9 alpha*)
225 : anton 1.34 machine=alpha
226 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
227 :     CFLAGS="$CFLAGS -mieee"
228 : pazsan 1.9 ;;
229 : anton 1.69 power*|rs6000)
230 : anton 1.34 machine=power
231 : anton 1.46 $srcdir/mkinstalldirs arch/power
232 : pazsan 1.87 AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
233 : anton 1.31 ;;
234 : anton 1.1 *)
235 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
236 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
237 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
238 : anton 1.34 machine=generic
239 : anton 1.1 esac
240 : anton 1.10 AC_SUBST(host)
241 : pazsan 1.15 AC_SUBST(ENGINE_FLAGS)
242 : anton 1.1
243 : pazsan 1.88 # Try if GCC understands -fno-cross-jump
244 :    
245 :     CFLAGS_1="$CFLAGS"
246 :     CFLAGS="$CFLAGS -fno-cross-jump"
247 :     AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
248 :    
249 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
250 : anton 1.61 AC_SUBST(asm_fs)
251 :    
252 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
253 : anton 1.61 AC_SUBST(disasm_fs)
254 :    
255 : pazsan 1.39 case "$host_os" in
256 :     *win32)
257 :     EXE=".exe"
258 : pazsan 1.88 DIRSEP="\\"
259 : pazsan 1.39 ;;
260 :     *)
261 :     EXE=""
262 : pazsan 1.88 DIRSEP="/"
263 : pazsan 1.39 ;;
264 :     esac
265 :     AC_SUBST(EXE)
266 : pazsan 1.88 AC_SUBST(DIRSEP)
267 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
268 : pazsan 1.39
269 : anton 1.1 dnl Now a little support for DOS/DJGCC
270 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
271 :     GFORTH_EXE=""
272 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
273 :     GFORTHFAST_EXE=""
274 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
275 :     GFORTHITC_EXE=""
276 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
277 :     GFORTHDITC_EXE=""
278 : anton 1.1
279 : anton 1.24 PATHSEP=":"
280 :     AC_SUBST(PATHSEP)
281 : pazsan 1.89 AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
282 : anton 1.27
283 :     AC_SUBST(FORTHSIZES)
284 : anton 1.24
285 : pazsan 1.79 if test "$PEEPHOLE" = "yes"
286 :     then
287 :     PEEPHOLEFLAG="true"
288 : pazsan 1.89 AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
289 : pazsan 1.79 else
290 :     PEEPHOLEFLAG="false"
291 :     fi
292 :     AC_SUBST(PEEPHOLEFLAG)
293 :    
294 : anton 1.1 dnl copy commands for systems that don't have links
295 : pazsan 1.29 AC_SUBST(LINK_KERNL)
296 :     LINK_KERNL=""
297 : anton 1.1
298 :     #if test $host_os=dos
299 :     #then
300 :     # echo Configuring for DOS!!!
301 :     # MAKE_EXE="coff2exe gforth"
302 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
303 : anton 1.1 #fi
304 :    
305 :     dnl the following macro produces a warning with autoconf-2.1
306 :     AC_C_BIGENDIAN
307 : pazsan 1.23 AC_SUBST(KERNEL)
308 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
309 :     if test $ac_cv_c_bigendian = yes; then
310 :     bytesex=b
311 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
312 : anton 1.1 else
313 :     bytesex=l
314 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
315 : anton 1.1 fi
316 :    
317 : anton 1.91 #check how to do asm(".skip 16")
318 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
319 :     skipcode=no
320 : anton 1.91 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
321 :     do
322 :     AC_TRY_RUN(
323 :     int foo(int);
324 :     main()
325 :     {
326 :     exit(foo(0)!=16);
327 :     }
328 :     int foo(int x)
329 :     {
330 :     if (x) {
331 :     label1:
332 :     asm("$i");
333 :     label2:
334 :     }
335 :     return (&&label2)-(&&label1);
336 :     }
337 : anton 1.92 ,skipcode=$i; break
338 :     ,,)
339 : anton 1.91 done
340 : anton 1.92 AC_MSG_RESULT($skipcode)
341 :     if test "$skipcode" = no
342 :     then
343 :     no_dynamic_default=1
344 :     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
345 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
346 :     else
347 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
348 :     fi
349 : anton 1.91
350 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
351 : anton 1.91
352 : anton 1.1 dnl Checks for programs.
353 :     AC_PROG_LN_S
354 : anton 1.34 dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
355 : anton 1.1
356 :     dnl Checks for library functions
357 : anton 1.2 dnl This check is just for making later checks link with libm.
358 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
359 :     AC_CHECK_LIB(m,asin)
360 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
361 : pazsan 1.32 if test "$host_os" != "nextstep3"
362 :     then
363 :     AC_FUNC_MEMCMP
364 :     fi
365 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
366 : anton 1.93 AC_CHECK_FUNCS(dlopen sys_siglist getrusage fseeko ftello)
367 :     AC_TYPE_OFF_T
368 : anton 1.19 AC_DECL_SYS_SIGLIST
369 : anton 1.92 AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
370 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
371 :     AC_REPLACE_FUNCS(rint ecvt)
372 : anton 1.1 dnl No check for select, because our replacement is no good under
373 :     dnl anything but DOS
374 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
375 : anton 1.63 AC_FUNC_FNMATCH
376 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
377 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
378 : anton 1.34 AM_PATH_LISPDIR
379 : anton 1.1
380 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
381 :     AC_SUBST(kernel_fi)
382 : jwilke 1.50
383 : anton 1.76 #this breaks bindists
384 :     #dnl replace srource directory by absolute value
385 :     #if test $srcdir = "."; then srcdir=`pwd`
386 :     #fi
387 : anton 1.8
388 : anton 1.34 AC_SUBST(machine)
389 :     dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
390 : anton 1.31 AC_OUTPUT([
391 :     Makefile
392 : pazsan 1.45 Makedist
393 : anton 1.43 gforthmi
394 : anton 1.80 vmgen
395 : pazsan 1.79 machpc.fs
396 : anton 1.35 engine/Makefile
397 : anton 1.44 doc/version.texi ],
398 :     echo timestamp > stamp-h
399 : anton 1.43 chmod +x gforthmi
400 : anton 1.80 chmod +x vmgen
401 : anton 1.44 test -d kernel||mkdir kernel)
402 :    
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