Annotation of gforth/configure.in, revision 1.98
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.73 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
1.95 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 "$ac_cv_sizeof_char_p" in
95: 2)
96: wordsize=16
97: ;;
98: 4)
99: wordsize=32
100: ;;
101: 8)
102: wordsize=64
103: ;;
104: esac
1.9 pazsan 105:
1.40 pazsan 106: AC_CHECK_SIZEOF(char)
1.23 pazsan 107: AC_CHECK_SIZEOF(short)
108: AC_CHECK_SIZEOF(int)
109: AC_CHECK_SIZEOF(long)
110: AC_CHECK_SIZEOF(long long)
111:
1.92 anton 112: AC_MSG_CHECKING([for a C type for cells])
1.23 pazsan 113: ac_cv_int_type_cell=none
114: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 115: $ac_cv_sizeof_int)
116: ac_cv_int_type_cell=int
117: ;;
1.23 pazsan 118: $ac_cv_sizeof_short)
119: ac_cv_int_type_cell=short
120: ;;
1.40 pazsan 121: $ac_cv_sizeof_char)
122: ac_cv_int_type_cell=char
1.23 pazsan 123: ;;
124: $ac_cv_sizeof_long)
125: ac_cv_int_type_cell=long
126: ;;
127: $ac_cv_sizeof_long_long)
128: ac_cv_int_type_cell="long long"
129: ;;
130: esac
1.92 anton 131: AC_MSG_RESULT($ac_cv_int_type_cell)
1.89 pazsan 132: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 133:
1.92 anton 134: AC_MSG_CHECKING([for a C type for double-cells])
1.23 pazsan 135: ac_cv_int_type_double_cell=none
136: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
137: $ac_cv_sizeof_short)
138: ac_cv_int_type_double_cell=short
139: ;;
140: $ac_cv_sizeof_int)
141: ac_cv_int_type_double_cell=int
142: ;;
143: $ac_cv_sizeof_long)
144: ac_cv_int_type_double_cell=long
145: ;;
146: $ac_cv_sizeof_long_long)
147: ac_cv_int_type_double_cell="long long"
148: ;;
149: esac
1.92 anton 150: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.21 anton 151: if test "$ac_cv_int_type_double_cell" = none; then
1.92 anton 152: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
1.87 pazsan 153: AC_LIBOBJ(dblsub)
1.89 pazsan 154: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 155: else
1.92 anton 156: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 157: fi
158:
1.96 anton 159: AC_TYPE_OFF_T
160: AC_CHECK_SIZEOF(off_t)
161: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
162: ac_small_off_t=$?
163: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
164:
1.50 jwilke 165: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
166: OLDLDFLAGS=$LDFLAGS
167: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 168: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
169: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
170: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 171: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
172: AC_MSG_RESULT($ac_export_dynamic)
173:
1.1 anton 174: #terminology is a bit unusual here: The host is the system on which
175: #gforth will run; the system on which configure will run is the `build'
176: AC_CANONICAL_HOST
177: case "$host_cpu" in
178: hppa*)
1.34 anton 179: machine=hppa
1.46 anton 180: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 181: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 182: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 183: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 184: ;;
185: sparc*)
1.34 anton 186: machine=sparc
1.1 anton 187: ;;
1.31 anton 188: i386)
1.34 anton 189: machine=386
1.16 anton 190: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 191: ;;
192: i486)
1.34 anton 193: machine=386
1.31 anton 194: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
195: ;;
1.77 anton 196: i*86)
1.34 anton 197: machine=386
1.55 anton 198: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 199: CFLAGS_1="$CFLAGS"
1.87 pazsan 200: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 201: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 202: ;;
1.97 anton 203: #generic should work for IA64
204: # ia64*)
205: # machine=ia64
206: # ;;
1.26 pazsan 207: m68k)
1.34 anton 208: machine=m68k
1.32 pazsan 209: CFLAGS="$CFLAGS -fomit-frame-pointer"
210: if test "$host_os" = "nextstep3"
211: then
1.87 pazsan 212: AC_LIBOBJ(termios)
1.32 pazsan 213: fi
1.97 anton 214: #I-cache flushing would be needed for dynamic code generation
215: no_dynamic_default=1
216: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.26 pazsan 217: ;;
1.1 anton 218: mips*)
1.34 anton 219: machine=mips
1.92 anton 220: #dynamic native code has the following problems on MIPS:
221: #
222: #1) J/JAL seems relocatable, but is are only
223: #relocatable within a 256MB-segment. While we try to
224: #get the linker to arrange this, there is no guarantee
225: #that this will succeed (and if the user uses a lot of
226: #memory, it is likely to fail).
227: #
228: #2) The way we generate dynamic native code may
229: #violate MIPS architectural restrictions (in
230: #particular, the delay slots of LW, MFLO, etc.)
231: #
232: #Therefore we disable dynamic native code by default:
233: no_dynamic_default=1
234: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.7 anton 235: #link text and data segment into the same 256M region!
1.49 anton 236: AC_MSG_CHECKING([whether the linker accepts -T])
237: OLDLDFLAGS=$LDFLAGS
238: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
239: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
240: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
241: AC_MSG_RESULT($ac_link_mips_t)
1.37 anton 242: AC_MSG_CHECKING([whether the linker accepts -D])
243: OLDLDFLAGS=$LDFLAGS
1.49 anton 244: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 245: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 246: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 247: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 248: ;;
1.9 pazsan 249: alpha*)
1.34 anton 250: machine=alpha
1.58 anton 251: #full IEEE FP support for more uniformity across platforms:
252: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 253: ;;
1.69 anton 254: power*|rs6000)
1.34 anton 255: machine=power
1.46 anton 256: $srcdir/mkinstalldirs arch/power
1.87 pazsan 257: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 258: ;;
1.1 anton 259: *)
1.92 anton 260: AC_MSG_WARN([Using a generic machine description])
261: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
262: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 263: machine=generic
1.97 anton 264: #I-cache flushing would be needed for dynamic code generation
265: no_dynamic_default=1
266: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.1 anton 267: esac
1.10 anton 268: AC_SUBST(host)
1.15 pazsan 269: AC_SUBST(ENGINE_FLAGS)
1.1 anton 270:
1.88 pazsan 271: # Try if GCC understands -fno-cross-jump
272:
273: CFLAGS_1="$CFLAGS"
274: CFLAGS="$CFLAGS -fno-cross-jump"
275: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
276:
1.66 anton 277: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 278: AC_SUBST(asm_fs)
279:
1.66 anton 280: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 281: AC_SUBST(disasm_fs)
282:
1.39 pazsan 283: case "$host_os" in
284: *win32)
285: EXE=".exe"
1.88 pazsan 286: DIRSEP="\\"
1.39 pazsan 287: ;;
1.97 anton 288: *darwin*)
289: #Darwin uses some funny preprocessor by default; eliminate it:
1.98 ! anton 290: AC_MSG_NOTICE([using -traditional-cpp on Darwin])
1.97 anton 291: CFLAGS="$CFLAGS -traditional-cpp"
1.98 ! anton 292: EXE=""
! 293: DIRSEP="/"
! 294: ;;
1.39 pazsan 295: *)
296: EXE=""
1.88 pazsan 297: DIRSEP="/"
1.39 pazsan 298: ;;
299: esac
300: AC_SUBST(EXE)
1.88 pazsan 301: AC_SUBST(DIRSEP)
1.89 pazsan 302: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 303:
1.1 anton 304: dnl Now a little support for DOS/DJGCC
1.30 pazsan 305: AC_SUBST(GFORTH_EXE)
306: GFORTH_EXE=""
1.48 anton 307: AC_SUBST(GFORTHFAST_EXE)
308: GFORTHFAST_EXE=""
1.83 anton 309: AC_SUBST(GFORTHITC_EXE)
310: GFORTHITC_EXE=""
1.30 pazsan 311: AC_SUBST(GFORTHDITC_EXE)
312: GFORTHDITC_EXE=""
1.1 anton 313:
1.24 anton 314: PATHSEP=":"
315: AC_SUBST(PATHSEP)
1.89 pazsan 316: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 317:
318: AC_SUBST(FORTHSIZES)
1.24 anton 319:
1.79 pazsan 320: if test "$PEEPHOLE" = "yes"
321: then
322: PEEPHOLEFLAG="true"
1.89 pazsan 323: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 324: else
325: PEEPHOLEFLAG="false"
326: fi
327: AC_SUBST(PEEPHOLEFLAG)
328:
1.1 anton 329: dnl copy commands for systems that don't have links
1.29 pazsan 330: AC_SUBST(LINK_KERNL)
331: LINK_KERNL=""
1.1 anton 332:
333: #if test $host_os=dos
334: #then
335: # echo Configuring for DOS!!!
336: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 337: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 338: #fi
339:
340: dnl the following macro produces a warning with autoconf-2.1
341: AC_C_BIGENDIAN
1.23 pazsan 342: AC_SUBST(KERNEL)
1.1 anton 343: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
344: if test $ac_cv_c_bigendian = yes; then
345: bytesex=b
1.23 pazsan 346: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 347: else
348: bytesex=l
1.23 pazsan 349: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 350: fi
351:
1.91 anton 352: #check how to do asm(".skip 16")
1.92 anton 353: AC_MSG_CHECKING([if and how we can waste code space])
354: skipcode=no
1.91 anton 355: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
356: do
357: AC_TRY_RUN(
358: int foo(int);
359: main()
360: {
361: exit(foo(0)!=16);
362: }
363: int foo(int x)
364: {
365: if (x) {
366: label1:
367: asm("$i");
368: label2:
369: }
370: return (&&label2)-(&&label1);
371: }
1.92 anton 372: ,skipcode=$i; break
373: ,,)
1.91 anton 374: done
1.92 anton 375: AC_MSG_RESULT($skipcode)
376: if test "$skipcode" = no
377: then
378: no_dynamic_default=1
379: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
380: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
381: else
382: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
383: fi
1.91 anton 384:
1.92 anton 385: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 386:
1.1 anton 387: dnl Checks for programs.
388: AC_PROG_LN_S
1.95 anton 389: AC_PROG_INSTALL
1.1 anton 390:
391: dnl Checks for library functions
1.2 anton 392: dnl This check is just for making later checks link with libm.
393: dnl using sin here is no good idea since it is built-into gcc and typechecked
394: AC_CHECK_LIB(m,asin)
1.31 anton 395: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 396: if test "$host_os" != "nextstep3"
397: then
398: AC_FUNC_MEMCMP
399: fi
1.25 pazsan 400: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 401: AC_FUNC_FSEEKO
402: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.98 ! anton 403: AC_CHECK_TYPES(stack_t)
1.19 anton 404: AC_DECL_SYS_SIGLIST
1.92 anton 405: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 406: AC_CHECK_FUNCS(expm1 log1p)
407: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 408: dnl No check for select, because our replacement is no good under
409: dnl anything but DOS
1.62 anton 410: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 411: AC_FUNC_FNMATCH
1.87 pazsan 412: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 413: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 414: AM_PATH_LISPDIR
1.1 anton 415:
1.23 pazsan 416: kernel_fi=kernl${wordsize}${bytesex}.fi
417: AC_SUBST(kernel_fi)
1.50 jwilke 418:
1.76 anton 419: #this breaks bindists
420: #dnl replace srource directory by absolute value
421: #if test $srcdir = "."; then srcdir=`pwd`
422: #fi
1.8 anton 423:
1.34 anton 424: AC_SUBST(machine)
1.95 anton 425: AC_CONFIG_FILES([
1.31 anton 426: Makefile
1.45 pazsan 427: Makedist
1.43 anton 428: gforthmi
1.80 anton 429: vmgen
1.79 pazsan 430: machpc.fs
1.35 anton 431: engine/Makefile
1.95 anton 432: doc/version.texi ])
433: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 434: chmod +x gforthmi
1.80 anton 435: chmod +x vmgen
1.95 anton 436: test -d kernel||mkdir kernel]],[[]])
437: AC_OUTPUT
1.44 anton 438:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>