[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 1.31 AC_INIT(engine/engine.c)
22 : anton 1.34
23 :     dnl We use some automake macros here,
24 :     dnl but don't use automake for creating Makefile.in
25 : anton 1.86 AM_INIT_AUTOMAKE(gforth,0.5.9-20020901)
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 1.86 UPDATED="1 September 2002"
30 : anton 1.84 AC_SUBST(UPDATED)
31 : anton 1.34 AM_CONFIG_HEADER(engine/config.h)
32 : anton 1.57 #AM_CYGWIN32
33 : anton 1.14
34 : anton 1.92 #default setting that may be changed later:
35 :     no_dynamic_default=0
36 :    
37 : anton 1.1 AC_ARG_ENABLE(force-reg,
38 :     [ --enable-force-reg Use explicit register declarations if they appear in
39 :     the machine.h file. This can cause a good speedup,
40 :     but also incorrect code with some gcc versions on
41 :     some processors (default disabled).],
42 : 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)]))
43 : anton 1.1
44 : pazsan 1.9 AC_ARG_WITH(debug,
45 : anton 1.10 [ --with-debug specifies option -g to compile with debug info (default)
46 : anton 1.27 --without-debug omits the -g switch and creates smaller images on
47 :     machines where "strip" has problems with gcc style
48 :     debugging informations.],
49 : pazsan 1.9 if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
50 :    
51 : pazsan 1.79 PEEPHOLE="yes"
52 :     AC_ARG_WITH(peephole,
53 :     [ --with-peephole Enable peephole optimization (default)
54 :     --without-peephole disables peephole optimization. Creates smaller,
55 :     but slower images.],
56 :     PEEPHOLE="$withval")
57 : anton 1.82
58 :     #currently we force direct threading this way. Eventually we should
59 :     #setup in the arch and engine files right
60 : pazsan 1.79
61 : anton 1.16 CFLAGS=$CFLAGS
62 :    
63 : pazsan 1.15 AC_PROG_CC
64 :    
65 : anton 1.92 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
66 : pazsan 1.9
67 : pazsan 1.15 AC_SUBST(CC)
68 : pazsan 1.9 AC_SUBST(DEBUGFLAG)
69 : anton 1.7
70 : anton 1.92 AC_MSG_CHECKING(gcc version)
71 :     gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
72 :     AC_MSG_RESULT($gcc_version)
73 :     if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
74 :     then
75 :     no_dynamic_default=1
76 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
77 :     fi
78 :    
79 : anton 1.10 dnl the following macro produces a warning with autoconf-2.1
80 :     AC_CHECK_SIZEOF(char *)
81 :     case "$ac_cv_sizeof_char_p" in
82 :     2)
83 :     wordsize=16
84 :     ;;
85 :     4)
86 :     wordsize=32
87 :     ;;
88 :     8)
89 :     wordsize=64
90 :     ;;
91 :     esac
92 : pazsan 1.9
93 : pazsan 1.40 AC_CHECK_SIZEOF(char)
94 : pazsan 1.23 AC_CHECK_SIZEOF(short)
95 :     AC_CHECK_SIZEOF(int)
96 :     AC_CHECK_SIZEOF(long)
97 :     AC_CHECK_SIZEOF(long long)
98 :    
99 : anton 1.92 AC_MSG_CHECKING([for a C type for cells])
100 : pazsan 1.23 ac_cv_int_type_cell=none
101 :     case "$ac_cv_sizeof_char_p" in
102 : pazsan 1.40 $ac_cv_sizeof_int)
103 :     ac_cv_int_type_cell=int
104 :     ;;
105 : pazsan 1.23 $ac_cv_sizeof_short)
106 :     ac_cv_int_type_cell=short
107 :     ;;
108 : pazsan 1.40 $ac_cv_sizeof_char)
109 :     ac_cv_int_type_cell=char
110 : pazsan 1.23 ;;
111 :     $ac_cv_sizeof_long)
112 :     ac_cv_int_type_cell=long
113 :     ;;
114 :     $ac_cv_sizeof_long_long)
115 :     ac_cv_int_type_cell="long long"
116 :     ;;
117 :     esac
118 : anton 1.92 AC_MSG_RESULT($ac_cv_int_type_cell)
119 : pazsan 1.89 AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
120 : pazsan 1.23
121 : anton 1.92 AC_MSG_CHECKING([for a C type for double-cells])
122 : pazsan 1.23 ac_cv_int_type_double_cell=none
123 :     case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
124 :     $ac_cv_sizeof_short)
125 :     ac_cv_int_type_double_cell=short
126 :     ;;
127 :     $ac_cv_sizeof_int)
128 :     ac_cv_int_type_double_cell=int
129 :     ;;
130 :     $ac_cv_sizeof_long)
131 :     ac_cv_int_type_double_cell=long
132 :     ;;
133 :     $ac_cv_sizeof_long_long)
134 :     ac_cv_int_type_double_cell="long long"
135 :     ;;
136 :     esac
137 : anton 1.92 AC_MSG_RESULT($ac_cv_int_type_double_cell)
138 : anton 1.21 if test "$ac_cv_int_type_double_cell" = none; then
139 : anton 1.92 AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
140 : pazsan 1.87 AC_LIBOBJ(dblsub)
141 : pazsan 1.89 AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
142 : pazsan 1.23 else
143 : anton 1.92 AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
144 : anton 1.20 fi
145 :    
146 : jwilke 1.50 AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
147 :     OLDLDFLAGS=$LDFLAGS
148 :     LDFLAGS="$LDFLAGS -export-dynamic"
149 : anton 1.69 dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
150 :     dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
151 :     AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
152 : jwilke 1.50 test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
153 :     AC_MSG_RESULT($ac_export_dynamic)
154 :    
155 : anton 1.1 #terminology is a bit unusual here: The host is the system on which
156 :     #gforth will run; the system on which configure will run is the `build'
157 :     AC_CANONICAL_HOST
158 :     case "$host_cpu" in
159 :     hppa*)
160 : anton 1.34 machine=hppa
161 : anton 1.46 $srcdir/mkinstalldirs arch/hppa
162 : pazsan 1.87 AC_LIBOBJ(../arch/hppa/cache)
163 : jwilke 1.50 LDFLAGS="$LDFLAGS -Xlinker -N"
164 : anton 1.47 LIBS="$LIBS -L/lib/pa1.1/"
165 : anton 1.1 ;;
166 :     sparc*)
167 : anton 1.34 machine=sparc
168 : anton 1.1 ;;
169 : anton 1.31 i386)
170 : anton 1.34 machine=386
171 : anton 1.16 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
172 : anton 1.31 ;;
173 :     i486)
174 : anton 1.34 machine=386
175 : anton 1.31 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
176 :     ;;
177 : anton 1.77 i*86)
178 : anton 1.34 machine=386
179 : anton 1.55 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
180 : pazsan 1.56 CFLAGS_1="$CFLAGS"
181 : pazsan 1.87 CFLAGS="$CFLAGS -march=pentium"
182 : pazsan 1.56 AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
183 : anton 1.1 ;;
184 : anton 1.72 ia64*)
185 :     machine=ia64
186 :     ;;
187 : pazsan 1.26 m68k)
188 : anton 1.34 machine=m68k
189 : pazsan 1.32 CFLAGS="$CFLAGS -fomit-frame-pointer"
190 :     if test "$host_os" = "nextstep3"
191 :     then
192 : pazsan 1.87 AC_LIBOBJ(termios)
193 : pazsan 1.32 fi
194 : pazsan 1.26 ;;
195 : anton 1.1 mips*)
196 : anton 1.34 machine=mips
197 : anton 1.92 #dynamic native code has the following problems on MIPS:
198 :     #
199 :     #1) J/JAL seems relocatable, but is are only
200 :     #relocatable within a 256MB-segment. While we try to
201 :     #get the linker to arrange this, there is no guarantee
202 :     #that this will succeed (and if the user uses a lot of
203 :     #memory, it is likely to fail).
204 :     #
205 :     #2) The way we generate dynamic native code may
206 :     #violate MIPS architectural restrictions (in
207 :     #particular, the delay slots of LW, MFLO, etc.)
208 :     #
209 :     #Therefore we disable dynamic native code by default:
210 :     no_dynamic_default=1
211 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
212 : anton 1.7 #link text and data segment into the same 256M region!
213 : anton 1.49 AC_MSG_CHECKING([whether the linker accepts -T])
214 :     OLDLDFLAGS=$LDFLAGS
215 :     LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
216 :     AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
217 :     test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
218 :     AC_MSG_RESULT($ac_link_mips_t)
219 : anton 1.37 AC_MSG_CHECKING([whether the linker accepts -D])
220 :     OLDLDFLAGS=$LDFLAGS
221 : anton 1.49 LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
222 : anton 1.37 AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
223 : anton 1.49 test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
224 : anton 1.37 AC_MSG_RESULT($ac_link_mips_d)
225 : anton 1.1 ;;
226 : pazsan 1.9 alpha*)
227 : anton 1.34 machine=alpha
228 : anton 1.58 #full IEEE FP support for more uniformity across platforms:
229 :     CFLAGS="$CFLAGS -mieee"
230 : pazsan 1.9 ;;
231 : anton 1.69 power*|rs6000)
232 : anton 1.34 machine=power
233 : anton 1.46 $srcdir/mkinstalldirs arch/power
234 : pazsan 1.87 AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
235 : anton 1.31 ;;
236 : anton 1.1 *)
237 : anton 1.92 AC_MSG_WARN([Using a generic machine description])
238 :     AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
239 :     AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
240 : anton 1.34 machine=generic
241 : anton 1.1 esac
242 : anton 1.10 AC_SUBST(host)
243 : pazsan 1.15 AC_SUBST(ENGINE_FLAGS)
244 : anton 1.1
245 : pazsan 1.88 # Try if GCC understands -fno-cross-jump
246 :    
247 :     CFLAGS_1="$CFLAGS"
248 :     CFLAGS="$CFLAGS -fno-cross-jump"
249 :     AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
250 :    
251 : anton 1.66 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
252 : anton 1.61 AC_SUBST(asm_fs)
253 :    
254 : anton 1.66 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
255 : anton 1.61 AC_SUBST(disasm_fs)
256 :    
257 : pazsan 1.39 case "$host_os" in
258 :     *win32)
259 :     EXE=".exe"
260 : pazsan 1.88 DIRSEP="\\"
261 : pazsan 1.39 ;;
262 :     *)
263 :     EXE=""
264 : pazsan 1.88 DIRSEP="/"
265 : pazsan 1.39 ;;
266 :     esac
267 :     AC_SUBST(EXE)
268 : pazsan 1.88 AC_SUBST(DIRSEP)
269 : pazsan 1.89 AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
270 : pazsan 1.39
271 : anton 1.1 dnl Now a little support for DOS/DJGCC
272 : pazsan 1.30 AC_SUBST(GFORTH_EXE)
273 :     GFORTH_EXE=""
274 : anton 1.48 AC_SUBST(GFORTHFAST_EXE)
275 :     GFORTHFAST_EXE=""
276 : anton 1.83 AC_SUBST(GFORTHITC_EXE)
277 :     GFORTHITC_EXE=""
278 : pazsan 1.30 AC_SUBST(GFORTHDITC_EXE)
279 :     GFORTHDITC_EXE=""
280 : anton 1.1
281 : anton 1.24 PATHSEP=":"
282 :     AC_SUBST(PATHSEP)
283 : pazsan 1.89 AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
284 : anton 1.27
285 :     AC_SUBST(FORTHSIZES)
286 : anton 1.24
287 : pazsan 1.79 if test "$PEEPHOLE" = "yes"
288 :     then
289 :     PEEPHOLEFLAG="true"
290 : pazsan 1.89 AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
291 : pazsan 1.79 else
292 :     PEEPHOLEFLAG="false"
293 :     fi
294 :     AC_SUBST(PEEPHOLEFLAG)
295 :    
296 : anton 1.1 dnl copy commands for systems that don't have links
297 : pazsan 1.29 AC_SUBST(LINK_KERNL)
298 :     LINK_KERNL=""
299 : anton 1.1
300 :     #if test $host_os=dos
301 :     #then
302 :     # echo Configuring for DOS!!!
303 :     # MAKE_EXE="coff2exe gforth"
304 : pazsan 1.29 # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
305 : anton 1.1 #fi
306 :    
307 :     dnl the following macro produces a warning with autoconf-2.1
308 :     AC_C_BIGENDIAN
309 : pazsan 1.23 AC_SUBST(KERNEL)
310 : anton 1.1 dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
311 :     if test $ac_cv_c_bigendian = yes; then
312 :     bytesex=b
313 : pazsan 1.23 KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
314 : anton 1.1 else
315 :     bytesex=l
316 : pazsan 1.23 KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
317 : anton 1.1 fi
318 :    
319 : anton 1.91 #check how to do asm(".skip 16")
320 : anton 1.92 AC_MSG_CHECKING([if and how we can waste code space])
321 :     skipcode=no
322 : anton 1.91 for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
323 :     do
324 :     AC_TRY_RUN(
325 :     int foo(int);
326 :     main()
327 :     {
328 :     exit(foo(0)!=16);
329 :     }
330 :     int foo(int x)
331 :     {
332 :     if (x) {
333 :     label1:
334 :     asm("$i");
335 :     label2:
336 :     }
337 :     return (&&label2)-(&&label1);
338 :     }
339 : anton 1.92 ,skipcode=$i; break
340 :     ,,)
341 : anton 1.91 done
342 : anton 1.92 AC_MSG_RESULT($skipcode)
343 :     if test "$skipcode" = no
344 :     then
345 :     no_dynamic_default=1
346 :     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
347 :     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
348 :     else
349 :     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
350 :     fi
351 : anton 1.91
352 : anton 1.92 AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
353 : anton 1.91
354 : anton 1.1 dnl Checks for programs.
355 :     AC_PROG_LN_S
356 : anton 1.34 dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
357 : anton 1.1
358 :     dnl Checks for library functions
359 : anton 1.2 dnl This check is just for making later checks link with libm.
360 :     dnl using sin here is no good idea since it is built-into gcc and typechecked
361 :     AC_CHECK_LIB(m,asin)
362 : anton 1.31 AC_CHECK_LIB(dl,dlopen)
363 : pazsan 1.32 if test "$host_os" != "nextstep3"
364 :     then
365 :     AC_FUNC_MEMCMP
366 :     fi
367 : pazsan 1.25 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
368 : anton 1.71 AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
369 : anton 1.19 AC_DECL_SYS_SIGLIST
370 : anton 1.92 AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
371 : anton 1.90 AC_CHECK_FUNCS(expm1 log1p)
372 :     AC_REPLACE_FUNCS(rint ecvt)
373 : anton 1.1 dnl No check for select, because our replacement is no good under
374 :     dnl anything but DOS
375 : anton 1.62 AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
376 : anton 1.63 AC_FUNC_FNMATCH
377 : pazsan 1.87 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
378 : anton 1.28 AC_CHECK_FUNCS(mmap sysconf getpagesize)
379 : anton 1.34 AM_PATH_LISPDIR
380 : anton 1.1
381 : pazsan 1.23 kernel_fi=kernl${wordsize}${bytesex}.fi
382 :     AC_SUBST(kernel_fi)
383 : jwilke 1.50
384 : anton 1.76 #this breaks bindists
385 :     #dnl replace srource directory by absolute value
386 :     #if test $srcdir = "."; then srcdir=`pwd`
387 :     #fi
388 : anton 1.8
389 : anton 1.34 AC_SUBST(machine)
390 :     dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
391 : anton 1.31 AC_OUTPUT([
392 :     Makefile
393 : pazsan 1.45 Makedist
394 : anton 1.43 gforthmi
395 : anton 1.80 vmgen
396 : pazsan 1.79 machpc.fs
397 : anton 1.35 engine/Makefile
398 : anton 1.44 doc/version.texi ],
399 :     echo timestamp > stamp-h
400 : anton 1.43 chmod +x gforthmi
401 : anton 1.80 chmod +x vmgen
402 : anton 1.44 test -d kernel||mkdir kernel)
403 :    
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