Annotation of gforth/configure.in, revision 1.94
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
1.94 ! 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)
! 30: dnl AM_CYGWIN32
1.14 anton 31:
1.92 anton 32: #default setting that may be changed later:
33: no_dynamic_default=0
34:
1.1 anton 35: AC_ARG_ENABLE(force-reg,
36: [ --enable-force-reg Use explicit register declarations if they appear in
37: the machine.h file. This can cause a good speedup,
38: but also incorrect code with some gcc versions on
39: some processors (default disabled).],
1.89 pazsan 40: 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 41:
1.9 pazsan 42: AC_ARG_WITH(debug,
1.10 anton 43: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 44: --without-debug omits the -g switch and creates smaller images on
45: machines where "strip" has problems with gcc style
46: debugging informations.],
1.9 pazsan 47: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
48:
1.79 pazsan 49: PEEPHOLE="yes"
50: AC_ARG_WITH(peephole,
51: [ --with-peephole Enable peephole optimization (default)
52: --without-peephole disables peephole optimization. Creates smaller,
53: but slower images.],
54: PEEPHOLE="$withval")
1.82 anton 55:
56: #currently we force direct threading this way. Eventually we should
57: #setup in the arch and engine files right
1.79 pazsan 58:
1.16 anton 59: CFLAGS=$CFLAGS
60:
1.15 pazsan 61: AC_PROG_CC
62:
1.92 anton 63: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 64:
1.15 pazsan 65: AC_SUBST(CC)
1.9 pazsan 66: AC_SUBST(DEBUGFLAG)
1.7 anton 67:
1.92 anton 68: AC_MSG_CHECKING(gcc version)
69: gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
70: AC_MSG_RESULT($gcc_version)
71: if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
72: then
73: no_dynamic_default=1
74: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
75: fi
76:
1.10 anton 77: dnl the following macro produces a warning with autoconf-2.1
78: AC_CHECK_SIZEOF(char *)
79: case "$ac_cv_sizeof_char_p" in
80: 2)
81: wordsize=16
82: ;;
83: 4)
84: wordsize=32
85: ;;
86: 8)
87: wordsize=64
88: ;;
89: esac
1.9 pazsan 90:
1.40 pazsan 91: AC_CHECK_SIZEOF(char)
1.23 pazsan 92: AC_CHECK_SIZEOF(short)
93: AC_CHECK_SIZEOF(int)
94: AC_CHECK_SIZEOF(long)
95: AC_CHECK_SIZEOF(long long)
96:
1.92 anton 97: AC_MSG_CHECKING([for a C type for cells])
1.23 pazsan 98: ac_cv_int_type_cell=none
99: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 100: $ac_cv_sizeof_int)
101: ac_cv_int_type_cell=int
102: ;;
1.23 pazsan 103: $ac_cv_sizeof_short)
104: ac_cv_int_type_cell=short
105: ;;
1.40 pazsan 106: $ac_cv_sizeof_char)
107: ac_cv_int_type_cell=char
1.23 pazsan 108: ;;
109: $ac_cv_sizeof_long)
110: ac_cv_int_type_cell=long
111: ;;
112: $ac_cv_sizeof_long_long)
113: ac_cv_int_type_cell="long long"
114: ;;
115: esac
1.92 anton 116: AC_MSG_RESULT($ac_cv_int_type_cell)
1.89 pazsan 117: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 118:
1.92 anton 119: AC_MSG_CHECKING([for a C type for double-cells])
1.23 pazsan 120: ac_cv_int_type_double_cell=none
121: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
122: $ac_cv_sizeof_short)
123: ac_cv_int_type_double_cell=short
124: ;;
125: $ac_cv_sizeof_int)
126: ac_cv_int_type_double_cell=int
127: ;;
128: $ac_cv_sizeof_long)
129: ac_cv_int_type_double_cell=long
130: ;;
131: $ac_cv_sizeof_long_long)
132: ac_cv_int_type_double_cell="long long"
133: ;;
134: esac
1.92 anton 135: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.21 anton 136: if test "$ac_cv_int_type_double_cell" = none; then
1.92 anton 137: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
1.87 pazsan 138: AC_LIBOBJ(dblsub)
1.89 pazsan 139: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 140: else
1.92 anton 141: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 142: fi
143:
1.50 jwilke 144: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
145: OLDLDFLAGS=$LDFLAGS
146: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 147: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
148: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
149: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 150: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
151: AC_MSG_RESULT($ac_export_dynamic)
152:
1.1 anton 153: #terminology is a bit unusual here: The host is the system on which
154: #gforth will run; the system on which configure will run is the `build'
155: AC_CANONICAL_HOST
156: case "$host_cpu" in
157: hppa*)
1.34 anton 158: machine=hppa
1.46 anton 159: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 160: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 161: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 162: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 163: ;;
164: sparc*)
1.34 anton 165: machine=sparc
1.1 anton 166: ;;
1.31 anton 167: i386)
1.34 anton 168: machine=386
1.16 anton 169: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 170: ;;
171: i486)
1.34 anton 172: machine=386
1.31 anton 173: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
174: ;;
1.77 anton 175: i*86)
1.34 anton 176: machine=386
1.55 anton 177: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 178: CFLAGS_1="$CFLAGS"
1.87 pazsan 179: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 180: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 181: ;;
1.72 anton 182: ia64*)
183: machine=ia64
184: ;;
1.26 pazsan 185: m68k)
1.34 anton 186: machine=m68k
1.32 pazsan 187: CFLAGS="$CFLAGS -fomit-frame-pointer"
188: if test "$host_os" = "nextstep3"
189: then
1.87 pazsan 190: AC_LIBOBJ(termios)
1.32 pazsan 191: fi
1.26 pazsan 192: ;;
1.1 anton 193: mips*)
1.34 anton 194: machine=mips
1.92 anton 195: #dynamic native code has the following problems on MIPS:
196: #
197: #1) J/JAL seems relocatable, but is are only
198: #relocatable within a 256MB-segment. While we try to
199: #get the linker to arrange this, there is no guarantee
200: #that this will succeed (and if the user uses a lot of
201: #memory, it is likely to fail).
202: #
203: #2) The way we generate dynamic native code may
204: #violate MIPS architectural restrictions (in
205: #particular, the delay slots of LW, MFLO, etc.)
206: #
207: #Therefore we disable dynamic native code by default:
208: no_dynamic_default=1
209: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.7 anton 210: #link text and data segment into the same 256M region!
1.49 anton 211: AC_MSG_CHECKING([whether the linker accepts -T])
212: OLDLDFLAGS=$LDFLAGS
213: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
214: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
215: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
216: AC_MSG_RESULT($ac_link_mips_t)
1.37 anton 217: AC_MSG_CHECKING([whether the linker accepts -D])
218: OLDLDFLAGS=$LDFLAGS
1.49 anton 219: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 220: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 221: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 222: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 223: ;;
1.9 pazsan 224: alpha*)
1.34 anton 225: machine=alpha
1.58 anton 226: #full IEEE FP support for more uniformity across platforms:
227: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 228: ;;
1.69 anton 229: power*|rs6000)
1.34 anton 230: machine=power
1.46 anton 231: $srcdir/mkinstalldirs arch/power
1.87 pazsan 232: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 233: ;;
1.1 anton 234: *)
1.92 anton 235: AC_MSG_WARN([Using a generic machine description])
236: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
237: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 238: machine=generic
1.1 anton 239: esac
1.10 anton 240: AC_SUBST(host)
1.15 pazsan 241: AC_SUBST(ENGINE_FLAGS)
1.1 anton 242:
1.88 pazsan 243: # Try if GCC understands -fno-cross-jump
244:
245: CFLAGS_1="$CFLAGS"
246: CFLAGS="$CFLAGS -fno-cross-jump"
247: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
248:
1.66 anton 249: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 250: AC_SUBST(asm_fs)
251:
1.66 anton 252: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 253: AC_SUBST(disasm_fs)
254:
1.39 pazsan 255: case "$host_os" in
256: *win32)
257: EXE=".exe"
1.88 pazsan 258: DIRSEP="\\"
1.39 pazsan 259: ;;
260: *)
261: EXE=""
1.88 pazsan 262: DIRSEP="/"
1.39 pazsan 263: ;;
264: esac
265: AC_SUBST(EXE)
1.88 pazsan 266: AC_SUBST(DIRSEP)
1.89 pazsan 267: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 268:
1.1 anton 269: dnl Now a little support for DOS/DJGCC
1.30 pazsan 270: AC_SUBST(GFORTH_EXE)
271: GFORTH_EXE=""
1.48 anton 272: AC_SUBST(GFORTHFAST_EXE)
273: GFORTHFAST_EXE=""
1.83 anton 274: AC_SUBST(GFORTHITC_EXE)
275: GFORTHITC_EXE=""
1.30 pazsan 276: AC_SUBST(GFORTHDITC_EXE)
277: GFORTHDITC_EXE=""
1.1 anton 278:
1.24 anton 279: PATHSEP=":"
280: AC_SUBST(PATHSEP)
1.89 pazsan 281: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 282:
283: AC_SUBST(FORTHSIZES)
1.24 anton 284:
1.79 pazsan 285: if test "$PEEPHOLE" = "yes"
286: then
287: PEEPHOLEFLAG="true"
1.89 pazsan 288: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 289: else
290: PEEPHOLEFLAG="false"
291: fi
292: AC_SUBST(PEEPHOLEFLAG)
293:
1.1 anton 294: dnl copy commands for systems that don't have links
1.29 pazsan 295: AC_SUBST(LINK_KERNL)
296: LINK_KERNL=""
1.1 anton 297:
298: #if test $host_os=dos
299: #then
300: # echo Configuring for DOS!!!
301: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 302: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 303: #fi
304:
305: dnl the following macro produces a warning with autoconf-2.1
306: AC_C_BIGENDIAN
1.23 pazsan 307: AC_SUBST(KERNEL)
1.1 anton 308: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
309: if test $ac_cv_c_bigendian = yes; then
310: bytesex=b
1.23 pazsan 311: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 312: else
313: bytesex=l
1.23 pazsan 314: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 315: fi
316:
1.91 anton 317: #check how to do asm(".skip 16")
1.92 anton 318: AC_MSG_CHECKING([if and how we can waste code space])
319: skipcode=no
1.91 anton 320: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
321: do
322: AC_TRY_RUN(
323: int foo(int);
324: main()
325: {
326: exit(foo(0)!=16);
327: }
328: int foo(int x)
329: {
330: if (x) {
331: label1:
332: asm("$i");
333: label2:
334: }
335: return (&&label2)-(&&label1);
336: }
1.92 anton 337: ,skipcode=$i; break
338: ,,)
1.91 anton 339: done
1.92 anton 340: AC_MSG_RESULT($skipcode)
341: if test "$skipcode" = no
342: then
343: no_dynamic_default=1
344: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
345: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
346: else
347: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
348: fi
1.91 anton 349:
1.92 anton 350: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 351:
1.1 anton 352: dnl Checks for programs.
353: AC_PROG_LN_S
1.34 anton 354: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 355:
356: dnl Checks for library functions
1.2 anton 357: dnl This check is just for making later checks link with libm.
358: dnl using sin here is no good idea since it is built-into gcc and typechecked
359: AC_CHECK_LIB(m,asin)
1.31 anton 360: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 361: if test "$host_os" != "nextstep3"
362: then
363: AC_FUNC_MEMCMP
364: fi
1.25 pazsan 365: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.93 anton 366: AC_CHECK_FUNCS(dlopen sys_siglist getrusage fseeko ftello)
367: AC_TYPE_OFF_T
1.19 anton 368: AC_DECL_SYS_SIGLIST
1.92 anton 369: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 370: AC_CHECK_FUNCS(expm1 log1p)
371: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 372: dnl No check for select, because our replacement is no good under
373: dnl anything but DOS
1.62 anton 374: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 375: AC_FUNC_FNMATCH
1.87 pazsan 376: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 377: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 378: AM_PATH_LISPDIR
1.1 anton 379:
1.23 pazsan 380: kernel_fi=kernl${wordsize}${bytesex}.fi
381: AC_SUBST(kernel_fi)
1.50 jwilke 382:
1.76 anton 383: #this breaks bindists
384: #dnl replace srource directory by absolute value
385: #if test $srcdir = "."; then srcdir=`pwd`
386: #fi
1.8 anton 387:
1.34 anton 388: AC_SUBST(machine)
389: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 390: AC_OUTPUT([
391: Makefile
1.45 pazsan 392: Makedist
1.43 anton 393: gforthmi
1.80 anton 394: vmgen
1.79 pazsan 395: machpc.fs
1.35 anton 396: engine/Makefile
1.44 anton 397: doc/version.texi ],
398: echo timestamp > stamp-h
1.43 anton 399: chmod +x gforthmi
1.80 anton 400: chmod +x vmgen
1.44 anton 401: test -d kernel||mkdir kernel)
402:
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