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Wed Jan 22 18:05:19 2003 UTC (21 years, 2 months ago) by
anton
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Declared some environment variables in configure.in
cleaned up PEEPHOLE configuration options (no longer used in C code)
related documentation changes in INSTALL
1: dnl Process this file with autoconf to produce a configure script.
2:
3: #Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
4:
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: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20:
21: dnl We use some automake macros here,
22: dnl but don't use automake for creating Makefile.in
23: AC_INIT([gforth],[0.5.9-20021227],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
24: #snapshots have numbers major.minor.release-YYYYMMDD
25: #note that lexicographic ordering must be heeded.
26: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
27: UPDATED="27 December 2002"
28: AC_SUBST(UPDATED)
29: AC_CONFIG_HEADERS(engine/config.h)
30:
31: #default setting that may be changed later:
32: no_dynamic_default=0
33:
34: AC_ARG_ENABLE(force-reg,
35: [ --enable-force-reg Use explicit register declarations if they appear in
36: the machine.h file. This can cause a good speedup,
37: but also incorrect code with some gcc versions on
38: some processors (default disabled).],
39: 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)]))
40:
41: AC_ARG_WITH(debug,
42: [ --with-debug specifies option -g to compile with debug info (default)
43: --without-debug omits the -g switch and creates smaller images on
44: machines where "strip" has problems with gcc style
45: debugging informations.],
46: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
47:
48: dnl PEEPHOLE="yes"
49: dnl AC_ARG_WITH(peephole,
50: dnl [ --with-peephole Enable peephole optimization (default)
51: dnl --without-peephole disables peephole optimization. Creates smaller,
52: dnl but slower images.],
53: dnl PEEPHOLE="$withval")
54:
55: #variables mentioned in INSTALL
56: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
57: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
58: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
59: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
60: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
61: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
62: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
63: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
64: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
65: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
66: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no)?])
67:
68: #set up feature test macros, so the tests get them right:
69: # turn on all POSIX, SUSv3, and GNU features if available
70: AC_GNU_SOURCE
71: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
72:
73: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
74: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
75: dnl but not for _XOPEN_SOURCE)
76: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
77: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
78: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
79: # turn on large file support with 64-bit off_t where available
80: AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
81: AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
82:
83: #currently we force direct threading this way. Eventually we should
84: #setup in the arch and engine files right
85:
86: CFLAGS=$CFLAGS
87:
88: AC_PROG_CC
89:
90: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
91:
92: AC_SUBST(CC)
93: AC_SUBST(DEBUGFLAG)
94:
95: dnl gcc-3.2 seems to work fine now
96: dnl AC_MSG_CHECKING(gcc version)
97: dnl gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
98: dnl AC_MSG_RESULT($gcc_version)
99: dnl if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
100: dnl then
101: dnl no_dynamic_default=1
102: dnl AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
103: dnl fi
104:
105: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
106: OLDLDFLAGS=$LDFLAGS
107: LDFLAGS="$LDFLAGS -export-dynamic"
108: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
109: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
110: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
111: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
112: AC_MSG_RESULT($ac_export_dynamic)
113:
114: #terminology is a bit unusual here: The host is the system on which
115: #gforth will run; the system on which configure will run is the `build'
116: AC_CANONICAL_HOST
117: case "$host_cpu" in
118: hppa*)
119: machine=hppa
120: $srcdir/mkinstalldirs arch/hppa
121: AC_LIBOBJ(../arch/hppa/cache)
122: LDFLAGS="$LDFLAGS -Xlinker -N"
123: LIBS="$LIBS -L/lib/pa1.1/"
124: ;;
125: sparc*)
126: machine=sparc
127: ;;
128: i386)
129: machine=386
130: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
131: ;;
132: i486)
133: machine=386
134: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
135: ;;
136: i*86)
137: machine=386
138: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
139: CFLAGS_1="$CFLAGS"
140: CFLAGS="$CFLAGS -march=pentium"
141: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
142: ;;
143: #generic should work for IA64
144: # ia64*)
145: # machine=ia64
146: # ;;
147: m68k)
148: machine=m68k
149: CFLAGS="$CFLAGS -fomit-frame-pointer"
150: if test "$host_os" = "nextstep3"
151: then
152: AC_LIBOBJ(termios)
153: fi
154: ;;
155: mips*)
156: machine=mips
157: #dynamic native code has the following problems on MIPS:
158: #
159: #1) J/JAL seems relocatable, but is are only
160: #relocatable within a 256MB-segment. While we try to
161: #get the linker to arrange this, there is no guarantee
162: #that this will succeed (and if the user uses a lot of
163: #memory, it is likely to fail).
164: #
165: #2) The way we generate dynamic native code may
166: #violate MIPS architectural restrictions (in
167: #particular, the delay slots of LW, MFLO, etc.)
168: #
169: #Therefore we disable dynamic native code by default:
170: no_dynamic_default=1
171: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
172: ;;
173: alpha*)
174: machine=alpha
175: #full IEEE FP support for more uniformity across platforms:
176: CFLAGS="$CFLAGS -mieee"
177: ;;
178: power*|rs6000)
179: machine=power
180: $srcdir/mkinstalldirs arch/power
181: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
182: #long long is broken on (at least) gcc-2.95.* for PPC
183: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
184: ;;
185: *)
186: AC_MSG_WARN([Using a generic machine description])
187: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
188: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
189: machine=generic
190: #I-cache flushing would be needed for dynamic code generation
191: no_dynamic_default=1
192: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
193: esac
194: AC_SUBST(host)
195: AC_SUBST(ENGINE_FLAGS)
196:
197: dnl the following macro produces a warning with autoconf-2.1
198: AC_CHECK_SIZEOF(char *)
199: case "$ac_cv_sizeof_char_p" in
200: 2)
201: wordsize=16
202: ;;
203: 4)
204: wordsize=32
205: ;;
206: 8)
207: wordsize=64
208: ;;
209: esac
210:
211: AC_CHECK_SIZEOF(char)
212: AC_CHECK_SIZEOF(short)
213: AC_CHECK_SIZEOF(int)
214: AC_CHECK_SIZEOF(long)
215: AC_CHECK_SIZEOF(long long)
216: AC_CHECK_SIZEOF(intptr_t)
217: AC_CHECK_SIZEOF(int128_t)
218:
219: AC_MSG_CHECKING([for a C type for cells])
220: ac_cv_int_type_cell=none
221: case "$ac_cv_sizeof_char_p" in
222: $ac_cv_sizeof_int)
223: ac_cv_int_type_cell=int
224: ;;
225: $ac_cv_sizeof_short)
226: ac_cv_int_type_cell=short
227: ;;
228: $ac_cv_sizeof_char)
229: ac_cv_int_type_cell=char
230: ;;
231: $ac_cv_sizeof_long)
232: ac_cv_int_type_cell=long
233: ;;
234: $ac_cv_sizeof_long_long)
235: ac_cv_int_type_cell="long long"
236: ;;
237: $ac_cv_sizeof_intptr_t)
238: ac_cv_int_type_cell="intptr_t"
239: ;;
240: $ac_cv_sizeof_int128_t)
241: ac_cv_int_type_cell="int128_t"
242: ;;
243: esac
244: AC_MSG_RESULT($ac_cv_int_type_cell)
245: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
246:
247: AC_MSG_CHECKING([for a C type for double-cells])
248: ac_cv_int_type_double_cell=none
249: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
250: $ac_cv_sizeof_short)
251: ac_cv_int_type_double_cell=short
252: ;;
253: $ac_cv_sizeof_int)
254: ac_cv_int_type_double_cell=int
255: ;;
256: $ac_cv_sizeof_long)
257: ac_cv_int_type_double_cell=long
258: ;;
259: $ac_cv_sizeof_long_long)
260: ac_cv_int_type_double_cell="long long"
261: ;;
262: $ac_cv_sizeof_intptr_t)
263: ac_cv_int_type_double_cell="intptr_t"
264: ;;
265: $ac_cv_sizeof_int128_t)
266: ac_cv_int_type_double_cell="int128_t"
267: ;;
268: esac
269: AC_MSG_RESULT($ac_cv_int_type_double_cell)
270: if test "$ac_cv_int_type_double_cell" = none; then
271: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
272: AC_LIBOBJ(dblsub)
273: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
274: else
275: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
276: fi
277:
278: AC_TYPE_OFF_T
279: AC_CHECK_SIZEOF(off_t)
280: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
281: ac_small_off_t=$?
282: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
283:
284: # Try if GCC understands -fno-cross-jump
285:
286: CFLAGS_1="$CFLAGS"
287: CFLAGS="$CFLAGS -fno-cross-jump"
288: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
289:
290: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
291: AC_SUBST(asm_fs)
292:
293: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
294: AC_SUBST(disasm_fs)
295:
296: case "$host_os" in
297: *win32)
298: EXE=".exe"
299: DIRSEP="\\"
300: ;;
301: *darwin*)
302: #Darwin uses some funny preprocessor by default; eliminate it:
303: AC_MSG_NOTICE([using -traditional-cpp on Darwin])
304: CFLAGS="$CFLAGS -traditional-cpp"
305: EXE=""
306: DIRSEP="/"
307: ;;
308: *)
309: EXE=""
310: DIRSEP="/"
311: ;;
312: esac
313: AC_SUBST(EXE)
314: AC_SUBST(DIRSEP)
315: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
316:
317: dnl Now a little support for DOS/DJGCC
318: AC_SUBST(GFORTH_EXE)
319: GFORTH_EXE=""
320: AC_SUBST(GFORTHFAST_EXE)
321: GFORTHFAST_EXE=""
322: AC_SUBST(GFORTHITC_EXE)
323: GFORTHITC_EXE=""
324: AC_SUBST(GFORTHDITC_EXE)
325: GFORTHDITC_EXE=""
326:
327: PATHSEP=":"
328: AC_SUBST(PATHSEP)
329: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
330:
331: AC_SUBST(FORTHSIZES)
332:
333: dnl if test "$PEEPHOLE" = "yes"
334: dnl then
335: dnl PEEPHOLEFLAG="true"
336: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
337: dnl else
338: dnl PEEPHOLEFLAG="false"
339: dnl fi
340: PEEPHOLEFLAG="true"
341: AC_SUBST(PEEPHOLEFLAG)
342:
343: dnl copy commands for systems that don't have links
344: AC_SUBST(LINK_KERNL)
345: LINK_KERNL=""
346:
347: #if test $host_os=dos
348: #then
349: # echo Configuring for DOS!!!
350: # MAKE_EXE="coff2exe gforth"
351: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
352: #fi
353:
354: dnl the following macro produces a warning with autoconf-2.1
355: AC_C_BIGENDIAN
356: AC_SUBST(KERNEL)
357: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
358: if test $ac_cv_c_bigendian = yes; then
359: bytesex=b
360: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
361: else
362: bytesex=l
363: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
364: fi
365:
366: #check how to do asm(".skip 16")
367: AC_MSG_CHECKING([if and how we can waste code space])
368: skipcode=no
369: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
370: do
371: AC_TRY_RUN(
372: int foo(int);
373: main()
374: {
375: exit(foo(0)!=16);
376: }
377: int foo(int x)
378: {
379: if (x) {
380: label1:
381: asm("$i");
382: label2:
383: }
384: return (&&label2)-(&&label1);
385: }
386: ,skipcode=$i; break
387: ,,)
388: done
389: AC_MSG_RESULT($skipcode)
390: if test "$skipcode" = no
391: then
392: no_dynamic_default=1
393: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
394: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
395: else
396: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
397: fi
398:
399: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
400:
401: dnl Checks for programs.
402: AC_PROG_LN_S
403: AC_PROG_INSTALL
404:
405: dnl Checks for library functions
406: dnl This check is just for making later checks link with libm.
407: dnl using sin here is no good idea since it is built-into gcc and typechecked
408: AC_CHECK_LIB(m,asin)
409: AC_CHECK_LIB(dl,dlopen)
410: if test "$host_os" != "nextstep3"
411: then
412: AC_FUNC_MEMCMP
413: fi
414: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
415: AC_FUNC_FSEEKO
416: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
417: AC_CHECK_TYPES(stack_t)
418: AC_DECL_SYS_SIGLIST
419: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
420: AC_CHECK_FUNCS(expm1 log1p)
421: AC_REPLACE_FUNCS(rint ecvt)
422: dnl No check for select, because our replacement is no good under
423: dnl anything but DOS
424: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
425: AC_FUNC_FNMATCH
426: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
427: AC_CHECK_FUNCS(mmap sysconf getpagesize)
428: AM_PATH_LISPDIR
429:
430: kernel_fi=kernl${wordsize}${bytesex}.fi
431: AC_SUBST(kernel_fi)
432:
433: #this breaks bindists
434: #dnl replace srource directory by absolute value
435: #if test $srcdir = "."; then srcdir=`pwd`
436: #fi
437:
438: AC_SUBST(machine)
439: AC_CONFIG_FILES([
440: Makefile
441: Makedist
442: gforthmi
443: vmgen
444: machpc.fs
445: engine/Makefile
446: doc/version.texi ])
447: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
448: chmod +x gforthmi
449: chmod +x vmgen
450: test -d kernel||mkdir kernel]],[[]])
451: AC_OUTPUT
452:
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