Annotation of gforth/configure.in, revision 1.101
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.101 ! pazsan 3: #Copyright (C) 1995-2003 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
1.95 anton 23: AC_INIT([gforth],[0.5.9-20021227],[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!
1.94 anton 27: UPDATED="27 December 2002"
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 "$withval" = "yes"; then DEBUGFLAG=-g; fi)
47:
1.79 pazsan 48: PEEPHOLE="yes"
49: AC_ARG_WITH(peephole,
50: [ --with-peephole Enable peephole optimization (default)
51: --without-peephole disables peephole optimization. Creates smaller,
52: but slower images.],
53: PEEPHOLE="$withval")
1.82 anton 54:
1.96 anton 55: #set up feature test macros, so the tests get them right:
56: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 57: AC_GNU_SOURCE
58: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
59:
60: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
61: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
62: dnl but not for _XOPEN_SOURCE)
63: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
64: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
65: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 66: # turn on large file support with 64-bit off_t where available
67: AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
68: AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
69:
1.82 anton 70: #currently we force direct threading this way. Eventually we should
71: #setup in the arch and engine files right
1.79 pazsan 72:
1.16 anton 73: CFLAGS=$CFLAGS
74:
1.15 pazsan 75: AC_PROG_CC
76:
1.92 anton 77: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 78:
1.15 pazsan 79: AC_SUBST(CC)
1.9 pazsan 80: AC_SUBST(DEBUGFLAG)
1.7 anton 81:
1.97 anton 82: dnl gcc-3.2 seems to work fine now
83: dnl AC_MSG_CHECKING(gcc version)
84: dnl gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
85: dnl AC_MSG_RESULT($gcc_version)
86: dnl if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
87: dnl then
88: dnl no_dynamic_default=1
89: dnl AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
90: dnl fi
1.92 anton 91:
1.10 anton 92: dnl the following macro produces a warning with autoconf-2.1
93: AC_CHECK_SIZEOF(char *)
94: case "$ac_cv_sizeof_char_p" in
95: 2)
96: wordsize=16
97: ;;
98: 4)
99: wordsize=32
100: ;;
101: 8)
102: wordsize=64
103: ;;
104: esac
1.9 pazsan 105:
1.40 pazsan 106: AC_CHECK_SIZEOF(char)
1.23 pazsan 107: AC_CHECK_SIZEOF(short)
108: AC_CHECK_SIZEOF(int)
109: AC_CHECK_SIZEOF(long)
110: AC_CHECK_SIZEOF(long long)
1.100 pazsan 111: AC_CHECK_SIZEOF(intptr_t)
112: AC_CHECK_SIZEOF(int128_t)
1.23 pazsan 113:
1.92 anton 114: AC_MSG_CHECKING([for a C type for cells])
1.23 pazsan 115: ac_cv_int_type_cell=none
116: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 117: $ac_cv_sizeof_int)
118: ac_cv_int_type_cell=int
119: ;;
1.23 pazsan 120: $ac_cv_sizeof_short)
121: ac_cv_int_type_cell=short
122: ;;
1.40 pazsan 123: $ac_cv_sizeof_char)
124: ac_cv_int_type_cell=char
1.23 pazsan 125: ;;
126: $ac_cv_sizeof_long)
127: ac_cv_int_type_cell=long
128: ;;
129: $ac_cv_sizeof_long_long)
130: ac_cv_int_type_cell="long long"
131: ;;
1.100 pazsan 132: $ac_cv_sizeof_intptr_t)
133: ac_cv_int_type_cell="intptr_t"
134: ;;
135: $ac_cv_sizeof_int128_t)
136: ac_cv_int_type_cell="int128_t"
137: ;;
1.23 pazsan 138: esac
1.92 anton 139: AC_MSG_RESULT($ac_cv_int_type_cell)
1.89 pazsan 140: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 141:
1.92 anton 142: AC_MSG_CHECKING([for a C type for double-cells])
1.23 pazsan 143: ac_cv_int_type_double_cell=none
144: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
145: $ac_cv_sizeof_short)
146: ac_cv_int_type_double_cell=short
147: ;;
148: $ac_cv_sizeof_int)
149: ac_cv_int_type_double_cell=int
150: ;;
151: $ac_cv_sizeof_long)
152: ac_cv_int_type_double_cell=long
153: ;;
154: $ac_cv_sizeof_long_long)
155: ac_cv_int_type_double_cell="long long"
1.100 pazsan 156: ;;
157: $ac_cv_sizeof_intptr_t)
158: ac_cv_int_type_double_cell="intptr_t"
159: ;;
160: $ac_cv_sizeof_int128_t)
161: ac_cv_int_type_double_cell="int128_t"
1.23 pazsan 162: ;;
163: esac
1.92 anton 164: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.21 anton 165: if test "$ac_cv_int_type_double_cell" = none; then
1.92 anton 166: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
1.87 pazsan 167: AC_LIBOBJ(dblsub)
1.89 pazsan 168: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 169: else
1.92 anton 170: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 171: fi
172:
1.96 anton 173: AC_TYPE_OFF_T
174: AC_CHECK_SIZEOF(off_t)
175: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
176: ac_small_off_t=$?
177: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
178:
1.50 jwilke 179: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
180: OLDLDFLAGS=$LDFLAGS
181: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 182: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
183: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
184: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 185: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
186: AC_MSG_RESULT($ac_export_dynamic)
187:
1.1 anton 188: #terminology is a bit unusual here: The host is the system on which
189: #gforth will run; the system on which configure will run is the `build'
190: AC_CANONICAL_HOST
191: case "$host_cpu" in
192: hppa*)
1.34 anton 193: machine=hppa
1.46 anton 194: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 195: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 196: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 197: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 198: ;;
199: sparc*)
1.34 anton 200: machine=sparc
1.1 anton 201: ;;
1.31 anton 202: i386)
1.34 anton 203: machine=386
1.16 anton 204: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 205: ;;
206: i486)
1.34 anton 207: machine=386
1.31 anton 208: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
209: ;;
1.77 anton 210: i*86)
1.34 anton 211: machine=386
1.55 anton 212: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 213: CFLAGS_1="$CFLAGS"
1.87 pazsan 214: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 215: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 216: ;;
1.97 anton 217: #generic should work for IA64
218: # ia64*)
219: # machine=ia64
220: # ;;
1.26 pazsan 221: m68k)
1.34 anton 222: machine=m68k
1.32 pazsan 223: CFLAGS="$CFLAGS -fomit-frame-pointer"
224: if test "$host_os" = "nextstep3"
225: then
1.87 pazsan 226: AC_LIBOBJ(termios)
1.32 pazsan 227: fi
1.26 pazsan 228: ;;
1.1 anton 229: mips*)
1.34 anton 230: machine=mips
1.92 anton 231: #dynamic native code has the following problems on MIPS:
232: #
233: #1) J/JAL seems relocatable, but is are only
234: #relocatable within a 256MB-segment. While we try to
235: #get the linker to arrange this, there is no guarantee
236: #that this will succeed (and if the user uses a lot of
237: #memory, it is likely to fail).
238: #
239: #2) The way we generate dynamic native code may
240: #violate MIPS architectural restrictions (in
241: #particular, the delay slots of LW, MFLO, etc.)
242: #
243: #Therefore we disable dynamic native code by default:
244: no_dynamic_default=1
245: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.1 anton 246: ;;
1.9 pazsan 247: alpha*)
1.34 anton 248: machine=alpha
1.58 anton 249: #full IEEE FP support for more uniformity across platforms:
250: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 251: ;;
1.69 anton 252: power*|rs6000)
1.34 anton 253: machine=power
1.46 anton 254: $srcdir/mkinstalldirs arch/power
1.87 pazsan 255: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 256: ;;
1.1 anton 257: *)
1.92 anton 258: AC_MSG_WARN([Using a generic machine description])
259: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
260: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 261: machine=generic
1.97 anton 262: #I-cache flushing would be needed for dynamic code generation
263: no_dynamic_default=1
264: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.1 anton 265: esac
1.10 anton 266: AC_SUBST(host)
1.15 pazsan 267: AC_SUBST(ENGINE_FLAGS)
1.1 anton 268:
1.88 pazsan 269: # Try if GCC understands -fno-cross-jump
270:
271: CFLAGS_1="$CFLAGS"
272: CFLAGS="$CFLAGS -fno-cross-jump"
273: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
274:
1.66 anton 275: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 276: AC_SUBST(asm_fs)
277:
1.66 anton 278: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 279: AC_SUBST(disasm_fs)
280:
1.39 pazsan 281: case "$host_os" in
282: *win32)
283: EXE=".exe"
1.88 pazsan 284: DIRSEP="\\"
1.39 pazsan 285: ;;
1.97 anton 286: *darwin*)
287: #Darwin uses some funny preprocessor by default; eliminate it:
1.98 anton 288: AC_MSG_NOTICE([using -traditional-cpp on Darwin])
1.97 anton 289: CFLAGS="$CFLAGS -traditional-cpp"
1.98 anton 290: EXE=""
291: DIRSEP="/"
292: ;;
1.39 pazsan 293: *)
294: EXE=""
1.88 pazsan 295: DIRSEP="/"
1.39 pazsan 296: ;;
297: esac
298: AC_SUBST(EXE)
1.88 pazsan 299: AC_SUBST(DIRSEP)
1.89 pazsan 300: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 301:
1.1 anton 302: dnl Now a little support for DOS/DJGCC
1.30 pazsan 303: AC_SUBST(GFORTH_EXE)
304: GFORTH_EXE=""
1.48 anton 305: AC_SUBST(GFORTHFAST_EXE)
306: GFORTHFAST_EXE=""
1.83 anton 307: AC_SUBST(GFORTHITC_EXE)
308: GFORTHITC_EXE=""
1.30 pazsan 309: AC_SUBST(GFORTHDITC_EXE)
310: GFORTHDITC_EXE=""
1.1 anton 311:
1.24 anton 312: PATHSEP=":"
313: AC_SUBST(PATHSEP)
1.89 pazsan 314: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 315:
316: AC_SUBST(FORTHSIZES)
1.24 anton 317:
1.79 pazsan 318: if test "$PEEPHOLE" = "yes"
319: then
320: PEEPHOLEFLAG="true"
1.89 pazsan 321: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 322: else
323: PEEPHOLEFLAG="false"
324: fi
325: AC_SUBST(PEEPHOLEFLAG)
326:
1.1 anton 327: dnl copy commands for systems that don't have links
1.29 pazsan 328: AC_SUBST(LINK_KERNL)
329: LINK_KERNL=""
1.1 anton 330:
331: #if test $host_os=dos
332: #then
333: # echo Configuring for DOS!!!
334: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 335: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 336: #fi
337:
338: dnl the following macro produces a warning with autoconf-2.1
339: AC_C_BIGENDIAN
1.23 pazsan 340: AC_SUBST(KERNEL)
1.1 anton 341: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
342: if test $ac_cv_c_bigendian = yes; then
343: bytesex=b
1.23 pazsan 344: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 345: else
346: bytesex=l
1.23 pazsan 347: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 348: fi
349:
1.91 anton 350: #check how to do asm(".skip 16")
1.92 anton 351: AC_MSG_CHECKING([if and how we can waste code space])
352: skipcode=no
1.91 anton 353: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
354: do
355: AC_TRY_RUN(
356: int foo(int);
357: main()
358: {
359: exit(foo(0)!=16);
360: }
361: int foo(int x)
362: {
363: if (x) {
364: label1:
365: asm("$i");
366: label2:
367: }
368: return (&&label2)-(&&label1);
369: }
1.92 anton 370: ,skipcode=$i; break
371: ,,)
1.91 anton 372: done
1.92 anton 373: AC_MSG_RESULT($skipcode)
374: if test "$skipcode" = no
375: then
376: no_dynamic_default=1
377: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
378: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
379: else
380: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
381: fi
1.91 anton 382:
1.92 anton 383: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 384:
1.1 anton 385: dnl Checks for programs.
386: AC_PROG_LN_S
1.95 anton 387: AC_PROG_INSTALL
1.1 anton 388:
389: dnl Checks for library functions
1.2 anton 390: dnl This check is just for making later checks link with libm.
391: dnl using sin here is no good idea since it is built-into gcc and typechecked
392: AC_CHECK_LIB(m,asin)
1.31 anton 393: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 394: if test "$host_os" != "nextstep3"
395: then
396: AC_FUNC_MEMCMP
397: fi
1.25 pazsan 398: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 399: AC_FUNC_FSEEKO
400: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.98 anton 401: AC_CHECK_TYPES(stack_t)
1.19 anton 402: AC_DECL_SYS_SIGLIST
1.92 anton 403: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 404: AC_CHECK_FUNCS(expm1 log1p)
405: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 406: dnl No check for select, because our replacement is no good under
407: dnl anything but DOS
1.62 anton 408: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 409: AC_FUNC_FNMATCH
1.87 pazsan 410: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 411: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 412: AM_PATH_LISPDIR
1.1 anton 413:
1.23 pazsan 414: kernel_fi=kernl${wordsize}${bytesex}.fi
415: AC_SUBST(kernel_fi)
1.50 jwilke 416:
1.76 anton 417: #this breaks bindists
418: #dnl replace srource directory by absolute value
419: #if test $srcdir = "."; then srcdir=`pwd`
420: #fi
1.8 anton 421:
1.34 anton 422: AC_SUBST(machine)
1.95 anton 423: AC_CONFIG_FILES([
1.31 anton 424: Makefile
1.45 pazsan 425: Makedist
1.43 anton 426: gforthmi
1.80 anton 427: vmgen
1.79 pazsan 428: machpc.fs
1.35 anton 429: engine/Makefile
1.95 anton 430: doc/version.texi ])
431: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 432: chmod +x gforthmi
1.80 anton 433: chmod +x vmgen
1.95 anton 434: test -d kernel||mkdir kernel]],[[]])
435: AC_OUTPUT
1.44 anton 436:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>