Annotation of gforth/configure.in, revision 1.95
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:
55: #currently we force direct threading this way. Eventually we should
56: #setup in the arch and engine files right
1.79 pazsan 57:
1.16 anton 58: CFLAGS=$CFLAGS
59:
1.15 pazsan 60: AC_PROG_CC
61:
1.92 anton 62: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 63:
1.15 pazsan 64: AC_SUBST(CC)
1.9 pazsan 65: AC_SUBST(DEBUGFLAG)
1.7 anton 66:
1.92 anton 67: AC_MSG_CHECKING(gcc version)
68: gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
69: AC_MSG_RESULT($gcc_version)
70: if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
71: then
72: no_dynamic_default=1
73: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
74: fi
75:
1.10 anton 76: dnl the following macro produces a warning with autoconf-2.1
77: AC_CHECK_SIZEOF(char *)
78: case "$ac_cv_sizeof_char_p" in
79: 2)
80: wordsize=16
81: ;;
82: 4)
83: wordsize=32
84: ;;
85: 8)
86: wordsize=64
87: ;;
88: esac
1.9 pazsan 89:
1.40 pazsan 90: AC_CHECK_SIZEOF(char)
1.23 pazsan 91: AC_CHECK_SIZEOF(short)
92: AC_CHECK_SIZEOF(int)
93: AC_CHECK_SIZEOF(long)
94: AC_CHECK_SIZEOF(long long)
95:
1.92 anton 96: AC_MSG_CHECKING([for a C type for cells])
1.23 pazsan 97: ac_cv_int_type_cell=none
98: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 99: $ac_cv_sizeof_int)
100: ac_cv_int_type_cell=int
101: ;;
1.23 pazsan 102: $ac_cv_sizeof_short)
103: ac_cv_int_type_cell=short
104: ;;
1.40 pazsan 105: $ac_cv_sizeof_char)
106: ac_cv_int_type_cell=char
1.23 pazsan 107: ;;
108: $ac_cv_sizeof_long)
109: ac_cv_int_type_cell=long
110: ;;
111: $ac_cv_sizeof_long_long)
112: ac_cv_int_type_cell="long long"
113: ;;
114: esac
1.92 anton 115: AC_MSG_RESULT($ac_cv_int_type_cell)
1.89 pazsan 116: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 117:
1.92 anton 118: AC_MSG_CHECKING([for a C type for double-cells])
1.23 pazsan 119: ac_cv_int_type_double_cell=none
120: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
121: $ac_cv_sizeof_short)
122: ac_cv_int_type_double_cell=short
123: ;;
124: $ac_cv_sizeof_int)
125: ac_cv_int_type_double_cell=int
126: ;;
127: $ac_cv_sizeof_long)
128: ac_cv_int_type_double_cell=long
129: ;;
130: $ac_cv_sizeof_long_long)
131: ac_cv_int_type_double_cell="long long"
132: ;;
133: esac
1.92 anton 134: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.21 anton 135: if test "$ac_cv_int_type_double_cell" = none; then
1.92 anton 136: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
1.87 pazsan 137: AC_LIBOBJ(dblsub)
1.89 pazsan 138: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 139: else
1.92 anton 140: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 141: fi
142:
1.50 jwilke 143: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
144: OLDLDFLAGS=$LDFLAGS
145: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 146: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
147: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
148: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 149: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
150: AC_MSG_RESULT($ac_export_dynamic)
151:
1.1 anton 152: #terminology is a bit unusual here: The host is the system on which
153: #gforth will run; the system on which configure will run is the `build'
154: AC_CANONICAL_HOST
155: case "$host_cpu" in
156: hppa*)
1.34 anton 157: machine=hppa
1.46 anton 158: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 159: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 160: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 161: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 162: ;;
163: sparc*)
1.34 anton 164: machine=sparc
1.1 anton 165: ;;
1.31 anton 166: i386)
1.34 anton 167: machine=386
1.16 anton 168: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 169: ;;
170: i486)
1.34 anton 171: machine=386
1.31 anton 172: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
173: ;;
1.77 anton 174: i*86)
1.34 anton 175: machine=386
1.55 anton 176: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 177: CFLAGS_1="$CFLAGS"
1.87 pazsan 178: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 179: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 180: ;;
1.72 anton 181: ia64*)
182: machine=ia64
183: ;;
1.26 pazsan 184: m68k)
1.34 anton 185: machine=m68k
1.32 pazsan 186: CFLAGS="$CFLAGS -fomit-frame-pointer"
187: if test "$host_os" = "nextstep3"
188: then
1.87 pazsan 189: AC_LIBOBJ(termios)
1.32 pazsan 190: fi
1.26 pazsan 191: ;;
1.1 anton 192: mips*)
1.34 anton 193: machine=mips
1.92 anton 194: #dynamic native code has the following problems on MIPS:
195: #
196: #1) J/JAL seems relocatable, but is are only
197: #relocatable within a 256MB-segment. While we try to
198: #get the linker to arrange this, there is no guarantee
199: #that this will succeed (and if the user uses a lot of
200: #memory, it is likely to fail).
201: #
202: #2) The way we generate dynamic native code may
203: #violate MIPS architectural restrictions (in
204: #particular, the delay slots of LW, MFLO, etc.)
205: #
206: #Therefore we disable dynamic native code by default:
207: no_dynamic_default=1
208: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.7 anton 209: #link text and data segment into the same 256M region!
1.49 anton 210: AC_MSG_CHECKING([whether the linker accepts -T])
211: OLDLDFLAGS=$LDFLAGS
212: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
213: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
214: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
215: AC_MSG_RESULT($ac_link_mips_t)
1.37 anton 216: AC_MSG_CHECKING([whether the linker accepts -D])
217: OLDLDFLAGS=$LDFLAGS
1.49 anton 218: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 219: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 220: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 221: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 222: ;;
1.9 pazsan 223: alpha*)
1.34 anton 224: machine=alpha
1.58 anton 225: #full IEEE FP support for more uniformity across platforms:
226: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 227: ;;
1.69 anton 228: power*|rs6000)
1.34 anton 229: machine=power
1.46 anton 230: $srcdir/mkinstalldirs arch/power
1.87 pazsan 231: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 232: ;;
1.1 anton 233: *)
1.92 anton 234: AC_MSG_WARN([Using a generic machine description])
235: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
236: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 237: machine=generic
1.1 anton 238: esac
1.10 anton 239: AC_SUBST(host)
1.15 pazsan 240: AC_SUBST(ENGINE_FLAGS)
1.1 anton 241:
1.88 pazsan 242: # Try if GCC understands -fno-cross-jump
243:
244: CFLAGS_1="$CFLAGS"
245: CFLAGS="$CFLAGS -fno-cross-jump"
246: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
247:
1.66 anton 248: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 249: AC_SUBST(asm_fs)
250:
1.66 anton 251: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 252: AC_SUBST(disasm_fs)
253:
1.39 pazsan 254: case "$host_os" in
255: *win32)
256: EXE=".exe"
1.88 pazsan 257: DIRSEP="\\"
1.39 pazsan 258: ;;
259: *)
260: EXE=""
1.88 pazsan 261: DIRSEP="/"
1.39 pazsan 262: ;;
263: esac
264: AC_SUBST(EXE)
1.88 pazsan 265: AC_SUBST(DIRSEP)
1.89 pazsan 266: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 267:
1.1 anton 268: dnl Now a little support for DOS/DJGCC
1.30 pazsan 269: AC_SUBST(GFORTH_EXE)
270: GFORTH_EXE=""
1.48 anton 271: AC_SUBST(GFORTHFAST_EXE)
272: GFORTHFAST_EXE=""
1.83 anton 273: AC_SUBST(GFORTHITC_EXE)
274: GFORTHITC_EXE=""
1.30 pazsan 275: AC_SUBST(GFORTHDITC_EXE)
276: GFORTHDITC_EXE=""
1.1 anton 277:
1.24 anton 278: PATHSEP=":"
279: AC_SUBST(PATHSEP)
1.89 pazsan 280: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 281:
282: AC_SUBST(FORTHSIZES)
1.24 anton 283:
1.79 pazsan 284: if test "$PEEPHOLE" = "yes"
285: then
286: PEEPHOLEFLAG="true"
1.89 pazsan 287: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 288: else
289: PEEPHOLEFLAG="false"
290: fi
291: AC_SUBST(PEEPHOLEFLAG)
292:
1.1 anton 293: dnl copy commands for systems that don't have links
1.29 pazsan 294: AC_SUBST(LINK_KERNL)
295: LINK_KERNL=""
1.1 anton 296:
297: #if test $host_os=dos
298: #then
299: # echo Configuring for DOS!!!
300: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 301: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 302: #fi
303:
304: dnl the following macro produces a warning with autoconf-2.1
305: AC_C_BIGENDIAN
1.23 pazsan 306: AC_SUBST(KERNEL)
1.1 anton 307: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
308: if test $ac_cv_c_bigendian = yes; then
309: bytesex=b
1.23 pazsan 310: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 311: else
312: bytesex=l
1.23 pazsan 313: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 314: fi
315:
1.91 anton 316: #check how to do asm(".skip 16")
1.92 anton 317: AC_MSG_CHECKING([if and how we can waste code space])
318: skipcode=no
1.91 anton 319: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
320: do
321: AC_TRY_RUN(
322: int foo(int);
323: main()
324: {
325: exit(foo(0)!=16);
326: }
327: int foo(int x)
328: {
329: if (x) {
330: label1:
331: asm("$i");
332: label2:
333: }
334: return (&&label2)-(&&label1);
335: }
1.92 anton 336: ,skipcode=$i; break
337: ,,)
1.91 anton 338: done
1.92 anton 339: AC_MSG_RESULT($skipcode)
340: if test "$skipcode" = no
341: then
342: no_dynamic_default=1
343: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
344: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
345: else
346: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
347: fi
1.91 anton 348:
1.92 anton 349: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 350:
1.1 anton 351: dnl Checks for programs.
352: AC_PROG_LN_S
1.95 ! anton 353: AC_PROG_INSTALL
1.1 anton 354:
355: dnl Checks for library functions
1.2 anton 356: dnl This check is just for making later checks link with libm.
357: dnl using sin here is no good idea since it is built-into gcc and typechecked
358: AC_CHECK_LIB(m,asin)
1.31 anton 359: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 360: if test "$host_os" != "nextstep3"
361: then
362: AC_FUNC_MEMCMP
363: fi
1.25 pazsan 364: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.93 anton 365: AC_CHECK_FUNCS(dlopen sys_siglist getrusage fseeko ftello)
366: AC_TYPE_OFF_T
1.19 anton 367: AC_DECL_SYS_SIGLIST
1.92 anton 368: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 369: AC_CHECK_FUNCS(expm1 log1p)
370: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 371: dnl No check for select, because our replacement is no good under
372: dnl anything but DOS
1.62 anton 373: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 374: AC_FUNC_FNMATCH
1.87 pazsan 375: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 376: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 377: AM_PATH_LISPDIR
1.1 anton 378:
1.23 pazsan 379: kernel_fi=kernl${wordsize}${bytesex}.fi
380: AC_SUBST(kernel_fi)
1.50 jwilke 381:
1.76 anton 382: #this breaks bindists
383: #dnl replace srource directory by absolute value
384: #if test $srcdir = "."; then srcdir=`pwd`
385: #fi
1.8 anton 386:
1.34 anton 387: AC_SUBST(machine)
1.95 ! anton 388: AC_CONFIG_FILES([
1.31 anton 389: Makefile
1.45 pazsan 390: Makedist
1.43 anton 391: gforthmi
1.80 anton 392: vmgen
1.79 pazsan 393: machpc.fs
1.35 anton 394: engine/Makefile
1.95 ! anton 395: doc/version.texi ])
! 396: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 397: chmod +x gforthmi
1.80 anton 398: chmod +x vmgen
1.95 ! anton 399: test -d kernel||mkdir kernel]],[[]])
! 400: AC_OUTPUT
1.44 anton 401:
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