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configure.in
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1.121:
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Thu May 15 18:43:15 2003 UTC (20 years, 10 months ago) by
anton
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MAIN
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HEAD
gforth-prof is built by default again
default CFLAGS is now "-O2" instead of "-g -O2"
added some static superinstructions
fixed computation of engine/costs.i
minor changes
1: dnl Process this file with autoconf to produce a configure script.
2:
3: #Copyright (C) 1995,1996,1997,1998,2000,2003 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:
22: dnl We use some automake macros here,
23: dnl but don't use automake for creating Makefile.in
24: AC_INIT([gforth],[0.6.1],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
25: AC_PREREQ(2.54)
26: #snapshots have numbers major.minor.release-YYYYMMDD
27: #note that lexicographic ordering must be heeded.
28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
29: UPDATED="March 11, 2003"
30: AC_SUBST(UPDATED)
31: AC_CONFIG_HEADERS(engine/config.h)
32:
33: #suppress the "-g -O2" default
34: test "$CFLAGS" || CFLAGS=-O2
35:
36: #default setting that may be changed later:
37: no_dynamic_default=0
38:
39: AC_ARG_ENABLE(force-reg,
40: [ --enable-force-reg Use explicit register declarations if they appear in
41: the machine.h file. This can cause a good speedup,
42: but also incorrect code with some gcc versions on
43: some processors (default disabled).],
44: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
45:
46: AC_ARG_WITH(debug,
47: [ --with-debug specifies option -g to compile with debug info
48: --without-debug omits the -g switch and creates smaller images on
49: machines where "strip" has problems with gcc style
50: debugging informations.],
51: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
52:
53: dnl PEEPHOLE="yes"
54: dnl AC_ARG_WITH(peephole,
55: dnl [ --with-peephole Enable peephole optimization (default)
56: dnl --without-peephole disables peephole optimization. Creates smaller,
57: dnl but slower images.],
58: dnl PEEPHOLE="$withval")
59:
60: #variables mentioned in INSTALL
61: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
62: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
63: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
64: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
65: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
66: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
67: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
68: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
69: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
70: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
71: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no)?])
72:
73: #set up feature test macros, so the tests get them right:
74: # turn on all POSIX, SUSv3, and GNU features if available
75: AC_GNU_SOURCE
76: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
77:
78: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
79: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
80: dnl but not for _XOPEN_SOURCE)
81: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
82: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
83: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
84: # turn on large file support with 64-bit off_t where available
85: AC_SYS_LARGEFILE
86: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
87: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
88:
89: #currently we force direct threading this way. Eventually we should
90: #setup in the arch and engine files right
91:
92: AC_PROG_CC
93:
94: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
95:
96: AC_SUBST(CC)
97: AC_SUBST(DEBUGFLAG)
98:
99: dnl gcc-3.2 seems to work fine now
100: dnl AC_MSG_CHECKING(gcc version)
101: dnl gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
102: dnl AC_MSG_RESULT($gcc_version)
103: dnl if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
104: dnl then
105: dnl no_dynamic_default=1
106: dnl AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
107: dnl fi
108:
109: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
110: OLDLDFLAGS=$LDFLAGS
111: LDFLAGS="$LDFLAGS -export-dynamic"
112: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
113: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
114: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
115: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
116: AC_MSG_RESULT($ac_export_dynamic)
117:
118: #terminology is a bit unusual here: The host is the system on which
119: #gforth will run; the system on which configure will run is the `build'
120: AC_CANONICAL_HOST
121: case "$host_cpu" in
122: hppa*)
123: machine=hppa
124: $srcdir/mkinstalldirs arch/hppa
125: AC_LIBOBJ(../arch/hppa/cache)
126: #LDFLAGS="$LDFLAGS -Xlinker -N"
127: LIBS="$LIBS -L/lib/pa1.1/"
128: ;;
129: sparc*)
130: machine=sparc
131: ;;
132: i386)
133: machine=386
134: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
135: ;;
136: i486)
137: machine=386
138: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
139: ;;
140: i*86)
141: machine=386
142: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
143: CFLAGS_1="$CFLAGS"
144: CFLAGS="$CFLAGS -march=pentium"
145: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
146: ;;
147: #generic should work for IA64
148: # ia64*)
149: # machine=ia64
150: # ;;
151: m68k)
152: machine=m68k
153: CFLAGS="$CFLAGS -fomit-frame-pointer"
154: if test "$host_os" = "nextstep3"
155: then
156: AC_LIBOBJ(termios)
157: fi
158: ;;
159: mips*)
160: machine=mips
161: #dynamic native code has the following problems on MIPS:
162: #
163: #1) J/JAL seems relocatable, but is are only
164: #relocatable within a 256MB-segment. While we try to
165: #get the linker to arrange this, there is no guarantee
166: #that this will succeed (and if the user uses a lot of
167: #memory, it is likely to fail).
168: #
169: #2) The way we generate dynamic native code may
170: #violate MIPS architectural restrictions (in
171: #particular, the delay slots of LW, MFLO, etc.)
172: #
173: #Therefore we disable dynamic native code by default:
174: no_dynamic_default=1
175: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
176: ;;
177: alpha*)
178: machine=alpha
179: #full IEEE FP support for more uniformity across platforms:
180: CFLAGS="$CFLAGS -mieee"
181: ;;
182: power*|rs6000)
183: machine=power
184: $srcdir/mkinstalldirs arch/power
185: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
186: #long long is broken on (at least) gcc-2.95.* for PPC
187: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
188: ;;
189: *)
190: AC_MSG_WARN([Using a generic machine description])
191: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
192: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
193: machine=generic
194: #I-cache flushing would be needed for dynamic code generation
195: no_dynamic_default=1
196: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
197: esac
198: AC_SUBST(host)
199:
200: dnl the following macro produces a warning with autoconf-2.1
201: AC_CHECK_SIZEOF(char *)
202: case "$ac_cv_sizeof_char_p" in
203: 2)
204: wordsize=16
205: ;;
206: 4)
207: wordsize=32
208: ;;
209: 8)
210: wordsize=64
211: ;;
212: esac
213:
214: AC_CHECK_SIZEOF(char)
215: AC_CHECK_SIZEOF(short)
216: AC_CHECK_SIZEOF(int)
217: AC_CHECK_SIZEOF(long)
218: AC_CHECK_SIZEOF(long long)
219: AC_CHECK_SIZEOF(intptr_t)
220: AC_CHECK_SIZEOF(int128_t)
221:
222: AC_MSG_CHECKING([for a C type for cells])
223: ac_cv_int_type_cell=none
224: case "$ac_cv_sizeof_char_p" in
225: $ac_cv_sizeof_int)
226: ac_cv_int_type_cell=int
227: ;;
228: $ac_cv_sizeof_short)
229: ac_cv_int_type_cell=short
230: ;;
231: $ac_cv_sizeof_char)
232: ac_cv_int_type_cell=char
233: ;;
234: $ac_cv_sizeof_long)
235: ac_cv_int_type_cell=long
236: ;;
237: $ac_cv_sizeof_long_long)
238: ac_cv_int_type_cell="long long"
239: ;;
240: $ac_cv_sizeof_intptr_t)
241: ac_cv_int_type_cell="intptr_t"
242: ;;
243: $ac_cv_sizeof_int128_t)
244: ac_cv_int_type_cell="int128_t"
245: ;;
246: esac
247: AC_MSG_RESULT($ac_cv_int_type_cell)
248: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
249:
250: AC_MSG_CHECKING([for a C type for double-cells])
251: ac_cv_int_type_double_cell=none
252: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
253: $ac_cv_sizeof_short)
254: ac_cv_int_type_double_cell=short
255: ;;
256: $ac_cv_sizeof_int)
257: ac_cv_int_type_double_cell=int
258: ;;
259: $ac_cv_sizeof_long)
260: ac_cv_int_type_double_cell=long
261: ;;
262: $ac_cv_sizeof_long_long)
263: ac_cv_int_type_double_cell="long long"
264: ;;
265: $ac_cv_sizeof_intptr_t)
266: ac_cv_int_type_double_cell="intptr_t"
267: ;;
268: $ac_cv_sizeof_int128_t)
269: ac_cv_int_type_double_cell="int128_t"
270: ;;
271: esac
272: AC_MSG_RESULT($ac_cv_int_type_double_cell)
273: if test "$ac_cv_int_type_double_cell" = none; then
274: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
275: AC_LIBOBJ(dblsub)
276: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
277: else
278: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
279: fi
280:
281: AC_TYPE_OFF_T
282: AC_CHECK_SIZEOF(off_t)
283: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
284: ac_small_off_t=$?
285: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
286:
287: ENGINE_FLAGS=
288: AC_SUBST(ENGINE_FLAGS)
289:
290: # Try if GCC understands -fno-gcse
291:
292: AC_MSG_CHECKING([if $CC understands -fno-gcse])
293: CFLAGS_1="$CFLAGS"
294: CFLAGS="$CFLAGS -fno-gcse"
295: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
296: CFLAGS="$CFLAGS_1"
297: AC_MSG_RESULT($ac_nogcse)
298:
299: # Try if GCC understands -fno-strict-aliasing
300: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
301: CFLAGS_1="$CFLAGS"
302: CFLAGS="$CFLAGS -fno-strict-aliasing"
303: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
304: CFLAGS="$CFLAGS_1"
305: AC_MSG_RESULT($ac_nostrictaliasing)
306:
307: # Try if GCC understands -fno-cross-jump
308: AC_MSG_CHECKING([if $CC understands -fno-cross-jump])
309: CFLAGS_1="$CFLAGS"
310: CFLAGS="$CFLAGS -fno-cross-jump"
311: AC_TRY_COMPILE(,,ac_nocrossjump=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-cross-jump",ac_nocrossjump=no)
312: CFLAGS="$CFLAGS_1"
313: AC_MSG_RESULT($ac_nocrossjump)
314:
315: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
316: AC_SUBST(asm_fs)
317:
318: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
319: AC_SUBST(disasm_fs)
320:
321: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
322:
323: case "$host_os" in
324: *win32|cygwin)
325: DIRSEP="\\\\"
326: ;;
327: *darwin*)
328: #Darwin uses some funny preprocessor by default; eliminate it:
329: AC_MSG_NOTICE([using -traditional-cpp on Darwin])
330: CFLAGS="$CFLAGS -no-cpp-precomp"
331: DIRSEP="/"
332: ;;
333: *)
334: DIRSEP="/"
335: ;;
336: esac
337: AC_SUBST(DIRSEP)
338: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
339:
340: dnl Now a little support for DOS/DJGCC
341: AC_SUBST(GFORTH_EXE)
342: GFORTH_EXE=""
343: AC_SUBST(GFORTHFAST_EXE)
344: GFORTHFAST_EXE=""
345: AC_SUBST(GFORTHITC_EXE)
346: GFORTHITC_EXE=""
347: AC_SUBST(GFORTHDITC_EXE)
348: GFORTHDITC_EXE=""
349:
350: PATHSEP=":"
351: AC_SUBST(PATHSEP)
352: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
353:
354: AC_SUBST(FORTHSIZES)
355:
356: dnl if test "$PEEPHOLE" = "yes"
357: dnl then
358: dnl PEEPHOLEFLAG="true"
359: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
360: dnl else
361: dnl PEEPHOLEFLAG="false"
362: dnl fi
363: PEEPHOLEFLAG="true"
364: AC_SUBST(PEEPHOLEFLAG)
365:
366: dnl copy commands for systems that don't have links
367: AC_SUBST(LINK_KERNL)
368: LINK_KERNL=""
369:
370: #if test $host_os=dos
371: #then
372: # echo Configuring for DOS!!!
373: # MAKE_EXE="coff2exe gforth"
374: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
375: #fi
376:
377: dnl the following macro produces a warning with autoconf-2.1
378: AC_C_BIGENDIAN
379: AC_SUBST(KERNEL)
380: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
381: if test $ac_cv_c_bigendian = yes; then
382: bytesex=b
383: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
384: else
385: bytesex=l
386: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
387: fi
388:
389: #check how to do asm(".skip 16")
390: AC_MSG_CHECKING([if and how we can waste code space])
391: skipcode=no
392: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
393: do
394: AC_TRY_RUN(
395: int foo(int);
396: main()
397: {
398: exit(foo(0)!=16);
399: }
400: int foo(int x)
401: {
402: if (x) {
403: label1:
404: asm("$i");
405: label2:
406: }
407: return (&&label2)-(&&label1);
408: }
409: ,skipcode=$i; break
410: ,,)
411: done
412: AC_MSG_RESULT($skipcode)
413: if test "$skipcode" = no
414: then
415: no_dynamic_default=1
416: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
417: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
418: else
419: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
420: fi
421:
422: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
423:
424: dnl Checks for programs.
425: AC_PROG_LN_S
426: AC_PROG_INSTALL
427:
428: dnl Checks for library functions
429: dnl This check is just for making later checks link with libm.
430: dnl using sin here is no good idea since it is built-into gcc and typechecked
431: AC_CHECK_LIB(m,asin)
432: AC_CHECK_LIB(dl,dlopen)
433: if test "$host_os" != "nextstep3"
434: then
435: AC_FUNC_MEMCMP
436: fi
437: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
438: AC_FUNC_FSEEKO
439: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
440: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
441: AC_DECL_SYS_SIGLIST
442: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
443: AC_CHECK_FUNCS(expm1 log1p)
444: AC_REPLACE_FUNCS(rint ecvt)
445: dnl No check for select, because our replacement is no good under
446: dnl anything but DOS
447: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
448: AC_FUNC_FNMATCH
449: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
450: AC_CHECK_FUNCS(mmap sysconf getpagesize)
451: AM_PATH_LISPDIR
452:
453: kernel_fi=kernl${wordsize}${bytesex}.fi
454: AC_SUBST(kernel_fi)
455:
456: #this breaks bindists
457: #dnl replace srource directory by absolute value
458: #if test $srcdir = "."; then srcdir=`pwd`
459: #fi
460:
461: AC_SUBST(machine)
462: AC_CONFIG_FILES([
463: Makefile
464: Makedist
465: gforthmi
466: vmgen
467: machpc.fs
468: engine/Makefile
469: doc/version.texi ])
470: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
471: chmod +x gforthmi
472: chmod +x vmgen
473: test -d kernel||mkdir kernel]],[[]])
474: AC_OUTPUT
475:
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