Annotation of gforth/configure.in, revision 1.108
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.102 anton 3: #Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
1.20 anton 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
1.74 anton 19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.20 anton 20:
1.34 anton 21: dnl We use some automake macros here,
22: dnl but don't use automake for creating Makefile.in
1.106 anton 23: AC_INIT([gforth],[0.5.9-20030127],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.47 anton 24: #snapshots have numbers major.minor.release-YYYYMMDD
1.92 anton 25: #note that lexicographic ordering must be heeded.
1.47 anton 26: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.106 anton 27: UPDATED="27 January 2003"
1.84 anton 28: AC_SUBST(UPDATED)
1.94 anton 29: AC_CONFIG_HEADERS(engine/config.h)
1.14 anton 30:
1.92 anton 31: #default setting that may be changed later:
32: no_dynamic_default=0
33:
1.1 anton 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).],
1.89 pazsan 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)]))
1.1 anton 40:
1.9 pazsan 41: AC_ARG_WITH(debug,
1.10 anton 42: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 43: --without-debug omits the -g switch and creates smaller images on
44: machines where "strip" has problems with gcc style
45: debugging informations.],
1.9 pazsan 46: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
47:
1.104 anton 48: dnl PEEPHOLE="yes"
49: dnl AC_ARG_WITH(peephole,
50: dnl [ --with-peephole Enable peephole optimization (default)
51: dnl --without-peephole disables peephole optimization. Creates smaller,
52: dnl but slower images.],
53: dnl PEEPHOLE="$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)?])
1.82 anton 67:
1.96 anton 68: #set up feature test macros, so the tests get them right:
69: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 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])
1.96 anton 79: # turn on large file support with 64-bit off_t where available
1.105 anton 80: AC_SYS_LARGEFILE
81: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
82: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 83:
1.82 anton 84: #currently we force direct threading this way. Eventually we should
85: #setup in the arch and engine files right
1.79 pazsan 86:
1.16 anton 87: CFLAGS=$CFLAGS
88:
1.15 pazsan 89: AC_PROG_CC
90:
1.92 anton 91: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 92:
1.15 pazsan 93: AC_SUBST(CC)
1.9 pazsan 94: AC_SUBST(DEBUGFLAG)
1.7 anton 95:
1.97 anton 96: dnl gcc-3.2 seems to work fine now
97: dnl AC_MSG_CHECKING(gcc version)
98: dnl gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
99: dnl AC_MSG_RESULT($gcc_version)
100: dnl if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
101: dnl then
102: dnl no_dynamic_default=1
103: dnl AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
104: dnl fi
1.92 anton 105:
1.50 jwilke 106: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
107: OLDLDFLAGS=$LDFLAGS
108: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 109: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
110: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
111: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 112: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
113: AC_MSG_RESULT($ac_export_dynamic)
114:
1.1 anton 115: #terminology is a bit unusual here: The host is the system on which
116: #gforth will run; the system on which configure will run is the `build'
117: AC_CANONICAL_HOST
118: case "$host_cpu" in
119: hppa*)
1.34 anton 120: machine=hppa
1.46 anton 121: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 122: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 123: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 124: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 125: ;;
126: sparc*)
1.34 anton 127: machine=sparc
1.1 anton 128: ;;
1.31 anton 129: i386)
1.34 anton 130: machine=386
1.16 anton 131: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 132: ;;
133: i486)
1.34 anton 134: machine=386
1.31 anton 135: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
136: ;;
1.77 anton 137: i*86)
1.34 anton 138: machine=386
1.55 anton 139: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 140: CFLAGS_1="$CFLAGS"
1.87 pazsan 141: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 142: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 143: ;;
1.97 anton 144: #generic should work for IA64
145: # ia64*)
146: # machine=ia64
147: # ;;
1.26 pazsan 148: m68k)
1.34 anton 149: machine=m68k
1.32 pazsan 150: CFLAGS="$CFLAGS -fomit-frame-pointer"
151: if test "$host_os" = "nextstep3"
152: then
1.87 pazsan 153: AC_LIBOBJ(termios)
1.32 pazsan 154: fi
1.26 pazsan 155: ;;
1.1 anton 156: mips*)
1.34 anton 157: machine=mips
1.92 anton 158: #dynamic native code has the following problems on MIPS:
159: #
160: #1) J/JAL seems relocatable, but is are only
161: #relocatable within a 256MB-segment. While we try to
162: #get the linker to arrange this, there is no guarantee
163: #that this will succeed (and if the user uses a lot of
164: #memory, it is likely to fail).
165: #
166: #2) The way we generate dynamic native code may
167: #violate MIPS architectural restrictions (in
168: #particular, the delay slots of LW, MFLO, etc.)
169: #
170: #Therefore we disable dynamic native code by default:
171: no_dynamic_default=1
172: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.1 anton 173: ;;
1.9 pazsan 174: alpha*)
1.34 anton 175: machine=alpha
1.58 anton 176: #full IEEE FP support for more uniformity across platforms:
177: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 178: ;;
1.69 anton 179: power*|rs6000)
1.34 anton 180: machine=power
1.46 anton 181: $srcdir/mkinstalldirs arch/power
1.87 pazsan 182: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.103 anton 183: #long long is broken on (at least) gcc-2.95.* for PPC
1.104 anton 184: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
1.31 anton 185: ;;
1.1 anton 186: *)
1.92 anton 187: AC_MSG_WARN([Using a generic machine description])
188: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
189: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 190: machine=generic
1.97 anton 191: #I-cache flushing would be needed for dynamic code generation
192: no_dynamic_default=1
193: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.1 anton 194: esac
1.10 anton 195: AC_SUBST(host)
1.15 pazsan 196: AC_SUBST(ENGINE_FLAGS)
1.103 anton 197:
198: dnl the following macro produces a warning with autoconf-2.1
199: AC_CHECK_SIZEOF(char *)
200: case "$ac_cv_sizeof_char_p" in
201: 2)
202: wordsize=16
203: ;;
204: 4)
205: wordsize=32
206: ;;
207: 8)
208: wordsize=64
209: ;;
210: esac
211:
212: AC_CHECK_SIZEOF(char)
213: AC_CHECK_SIZEOF(short)
214: AC_CHECK_SIZEOF(int)
215: AC_CHECK_SIZEOF(long)
216: AC_CHECK_SIZEOF(long long)
217: AC_CHECK_SIZEOF(intptr_t)
218: AC_CHECK_SIZEOF(int128_t)
219:
220: AC_MSG_CHECKING([for a C type for cells])
221: ac_cv_int_type_cell=none
222: case "$ac_cv_sizeof_char_p" in
223: $ac_cv_sizeof_int)
224: ac_cv_int_type_cell=int
225: ;;
226: $ac_cv_sizeof_short)
227: ac_cv_int_type_cell=short
228: ;;
229: $ac_cv_sizeof_char)
230: ac_cv_int_type_cell=char
231: ;;
232: $ac_cv_sizeof_long)
233: ac_cv_int_type_cell=long
234: ;;
235: $ac_cv_sizeof_long_long)
236: ac_cv_int_type_cell="long long"
237: ;;
238: $ac_cv_sizeof_intptr_t)
239: ac_cv_int_type_cell="intptr_t"
240: ;;
241: $ac_cv_sizeof_int128_t)
242: ac_cv_int_type_cell="int128_t"
243: ;;
244: esac
245: AC_MSG_RESULT($ac_cv_int_type_cell)
246: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
247:
248: AC_MSG_CHECKING([for a C type for double-cells])
249: ac_cv_int_type_double_cell=none
250: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
251: $ac_cv_sizeof_short)
252: ac_cv_int_type_double_cell=short
253: ;;
254: $ac_cv_sizeof_int)
255: ac_cv_int_type_double_cell=int
256: ;;
257: $ac_cv_sizeof_long)
258: ac_cv_int_type_double_cell=long
259: ;;
260: $ac_cv_sizeof_long_long)
261: ac_cv_int_type_double_cell="long long"
262: ;;
263: $ac_cv_sizeof_intptr_t)
264: ac_cv_int_type_double_cell="intptr_t"
265: ;;
266: $ac_cv_sizeof_int128_t)
267: ac_cv_int_type_double_cell="int128_t"
268: ;;
269: esac
270: AC_MSG_RESULT($ac_cv_int_type_double_cell)
271: if test "$ac_cv_int_type_double_cell" = none; then
272: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
273: AC_LIBOBJ(dblsub)
274: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
275: else
276: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
277: fi
278:
279: AC_TYPE_OFF_T
280: AC_CHECK_SIZEOF(off_t)
281: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
282: ac_small_off_t=$?
283: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 284:
1.88 pazsan 285: # Try if GCC understands -fno-cross-jump
286:
287: CFLAGS_1="$CFLAGS"
288: CFLAGS="$CFLAGS -fno-cross-jump"
289: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
290:
1.66 anton 291: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 292: AC_SUBST(asm_fs)
293:
1.66 anton 294: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 295: AC_SUBST(disasm_fs)
296:
1.39 pazsan 297: case "$host_os" in
1.107 anton 298: *win32|cygwin)
1.108 ! anton 299: DIRSEP="\\\\"
1.39 pazsan 300: ;;
1.97 anton 301: *darwin*)
302: #Darwin uses some funny preprocessor by default; eliminate it:
1.98 anton 303: AC_MSG_NOTICE([using -traditional-cpp on Darwin])
1.97 anton 304: CFLAGS="$CFLAGS -traditional-cpp"
1.98 anton 305: DIRSEP="/"
306: ;;
1.39 pazsan 307: *)
1.88 pazsan 308: DIRSEP="/"
1.39 pazsan 309: ;;
310: esac
1.88 pazsan 311: AC_SUBST(DIRSEP)
1.89 pazsan 312: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 313:
1.1 anton 314: dnl Now a little support for DOS/DJGCC
1.30 pazsan 315: AC_SUBST(GFORTH_EXE)
316: GFORTH_EXE=""
1.48 anton 317: AC_SUBST(GFORTHFAST_EXE)
318: GFORTHFAST_EXE=""
1.83 anton 319: AC_SUBST(GFORTHITC_EXE)
320: GFORTHITC_EXE=""
1.30 pazsan 321: AC_SUBST(GFORTHDITC_EXE)
322: GFORTHDITC_EXE=""
1.1 anton 323:
1.24 anton 324: PATHSEP=":"
325: AC_SUBST(PATHSEP)
1.89 pazsan 326: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 327:
328: AC_SUBST(FORTHSIZES)
1.24 anton 329:
1.104 anton 330: dnl if test "$PEEPHOLE" = "yes"
331: dnl then
332: dnl PEEPHOLEFLAG="true"
333: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
334: dnl else
335: dnl PEEPHOLEFLAG="false"
336: dnl fi
337: PEEPHOLEFLAG="true"
1.79 pazsan 338: AC_SUBST(PEEPHOLEFLAG)
339:
1.1 anton 340: dnl copy commands for systems that don't have links
1.29 pazsan 341: AC_SUBST(LINK_KERNL)
342: LINK_KERNL=""
1.1 anton 343:
344: #if test $host_os=dos
345: #then
346: # echo Configuring for DOS!!!
347: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 348: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 349: #fi
350:
351: dnl the following macro produces a warning with autoconf-2.1
352: AC_C_BIGENDIAN
1.23 pazsan 353: AC_SUBST(KERNEL)
1.1 anton 354: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
355: if test $ac_cv_c_bigendian = yes; then
356: bytesex=b
1.23 pazsan 357: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 358: else
359: bytesex=l
1.23 pazsan 360: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 361: fi
362:
1.91 anton 363: #check how to do asm(".skip 16")
1.92 anton 364: AC_MSG_CHECKING([if and how we can waste code space])
365: skipcode=no
1.91 anton 366: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
367: do
368: AC_TRY_RUN(
369: int foo(int);
370: main()
371: {
372: exit(foo(0)!=16);
373: }
374: int foo(int x)
375: {
376: if (x) {
377: label1:
378: asm("$i");
379: label2:
380: }
381: return (&&label2)-(&&label1);
382: }
1.92 anton 383: ,skipcode=$i; break
384: ,,)
1.91 anton 385: done
1.92 anton 386: AC_MSG_RESULT($skipcode)
387: if test "$skipcode" = no
388: then
389: no_dynamic_default=1
390: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
391: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
392: else
393: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
394: fi
1.91 anton 395:
1.92 anton 396: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 397:
1.1 anton 398: dnl Checks for programs.
399: AC_PROG_LN_S
1.95 anton 400: AC_PROG_INSTALL
1.1 anton 401:
402: dnl Checks for library functions
1.2 anton 403: dnl This check is just for making later checks link with libm.
404: dnl using sin here is no good idea since it is built-into gcc and typechecked
405: AC_CHECK_LIB(m,asin)
1.31 anton 406: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 407: if test "$host_os" != "nextstep3"
408: then
409: AC_FUNC_MEMCMP
410: fi
1.25 pazsan 411: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 412: AC_FUNC_FSEEKO
413: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.98 anton 414: AC_CHECK_TYPES(stack_t)
1.19 anton 415: AC_DECL_SYS_SIGLIST
1.92 anton 416: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 417: AC_CHECK_FUNCS(expm1 log1p)
418: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 419: dnl No check for select, because our replacement is no good under
420: dnl anything but DOS
1.62 anton 421: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 422: AC_FUNC_FNMATCH
1.87 pazsan 423: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 424: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 425: AM_PATH_LISPDIR
1.1 anton 426:
1.23 pazsan 427: kernel_fi=kernl${wordsize}${bytesex}.fi
428: AC_SUBST(kernel_fi)
1.50 jwilke 429:
1.76 anton 430: #this breaks bindists
431: #dnl replace srource directory by absolute value
432: #if test $srcdir = "."; then srcdir=`pwd`
433: #fi
1.8 anton 434:
1.34 anton 435: AC_SUBST(machine)
1.95 anton 436: AC_CONFIG_FILES([
1.31 anton 437: Makefile
1.45 pazsan 438: Makedist
1.43 anton 439: gforthmi
1.80 anton 440: vmgen
1.79 pazsan 441: machpc.fs
1.35 anton 442: engine/Makefile
1.95 anton 443: doc/version.texi ])
444: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 445: chmod +x gforthmi
1.80 anton 446: chmod +x vmgen
1.95 anton 447: test -d kernel||mkdir kernel]],[[]])
448: AC_OUTPUT
1.44 anton 449:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>