Annotation of gforth/configure.in, revision 1.92
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:
1.31 anton 21: AC_INIT(engine/engine.c)
1.34 anton 22:
23: dnl We use some automake macros here,
24: dnl but don't use automake for creating Makefile.in
1.86 anton 25: AM_INIT_AUTOMAKE(gforth,0.5.9-20020901)
1.47 anton 26: #snapshots have numbers major.minor.release-YYYYMMDD
1.92 ! anton 27: #note that lexicographic ordering must be heeded.
1.47 anton 28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.86 anton 29: UPDATED="1 September 2002"
1.84 anton 30: AC_SUBST(UPDATED)
1.34 anton 31: AM_CONFIG_HEADER(engine/config.h)
1.57 anton 32: #AM_CYGWIN32
1.14 anton 33:
1.92 ! anton 34: #default setting that may be changed later:
! 35: no_dynamic_default=0
! 36:
1.1 anton 37: AC_ARG_ENABLE(force-reg,
38: [ --enable-force-reg Use explicit register declarations if they appear in
39: the machine.h file. This can cause a good speedup,
40: but also incorrect code with some gcc versions on
41: some processors (default disabled).],
1.89 pazsan 42: 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 43:
1.9 pazsan 44: AC_ARG_WITH(debug,
1.10 anton 45: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 46: --without-debug omits the -g switch and creates smaller images on
47: machines where "strip" has problems with gcc style
48: debugging informations.],
1.9 pazsan 49: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
50:
1.79 pazsan 51: PEEPHOLE="yes"
52: AC_ARG_WITH(peephole,
53: [ --with-peephole Enable peephole optimization (default)
54: --without-peephole disables peephole optimization. Creates smaller,
55: but slower images.],
56: PEEPHOLE="$withval")
1.82 anton 57:
58: #currently we force direct threading this way. Eventually we should
59: #setup in the arch and engine files right
1.79 pazsan 60:
1.16 anton 61: CFLAGS=$CFLAGS
62:
1.15 pazsan 63: AC_PROG_CC
64:
1.92 ! anton 65: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 66:
1.15 pazsan 67: AC_SUBST(CC)
1.9 pazsan 68: AC_SUBST(DEBUGFLAG)
1.7 anton 69:
1.92 ! anton 70: AC_MSG_CHECKING(gcc version)
! 71: gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
! 72: AC_MSG_RESULT($gcc_version)
! 73: if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
! 74: then
! 75: no_dynamic_default=1
! 76: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
! 77: fi
! 78:
1.10 anton 79: dnl the following macro produces a warning with autoconf-2.1
80: AC_CHECK_SIZEOF(char *)
81: case "$ac_cv_sizeof_char_p" in
82: 2)
83: wordsize=16
84: ;;
85: 4)
86: wordsize=32
87: ;;
88: 8)
89: wordsize=64
90: ;;
91: esac
1.9 pazsan 92:
1.40 pazsan 93: AC_CHECK_SIZEOF(char)
1.23 pazsan 94: AC_CHECK_SIZEOF(short)
95: AC_CHECK_SIZEOF(int)
96: AC_CHECK_SIZEOF(long)
97: AC_CHECK_SIZEOF(long long)
98:
1.92 ! anton 99: AC_MSG_CHECKING([for a C type for cells])
1.23 pazsan 100: ac_cv_int_type_cell=none
101: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 102: $ac_cv_sizeof_int)
103: ac_cv_int_type_cell=int
104: ;;
1.23 pazsan 105: $ac_cv_sizeof_short)
106: ac_cv_int_type_cell=short
107: ;;
1.40 pazsan 108: $ac_cv_sizeof_char)
109: ac_cv_int_type_cell=char
1.23 pazsan 110: ;;
111: $ac_cv_sizeof_long)
112: ac_cv_int_type_cell=long
113: ;;
114: $ac_cv_sizeof_long_long)
115: ac_cv_int_type_cell="long long"
116: ;;
117: esac
1.92 ! anton 118: AC_MSG_RESULT($ac_cv_int_type_cell)
1.89 pazsan 119: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 120:
1.92 ! anton 121: AC_MSG_CHECKING([for a C type for double-cells])
1.23 pazsan 122: ac_cv_int_type_double_cell=none
123: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
124: $ac_cv_sizeof_short)
125: ac_cv_int_type_double_cell=short
126: ;;
127: $ac_cv_sizeof_int)
128: ac_cv_int_type_double_cell=int
129: ;;
130: $ac_cv_sizeof_long)
131: ac_cv_int_type_double_cell=long
132: ;;
133: $ac_cv_sizeof_long_long)
134: ac_cv_int_type_double_cell="long long"
135: ;;
136: esac
1.92 ! anton 137: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.21 anton 138: if test "$ac_cv_int_type_double_cell" = none; then
1.92 ! anton 139: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
1.87 pazsan 140: AC_LIBOBJ(dblsub)
1.89 pazsan 141: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 142: else
1.92 ! anton 143: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 144: fi
145:
1.50 jwilke 146: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
147: OLDLDFLAGS=$LDFLAGS
148: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 149: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
150: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
151: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 152: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
153: AC_MSG_RESULT($ac_export_dynamic)
154:
1.1 anton 155: #terminology is a bit unusual here: The host is the system on which
156: #gforth will run; the system on which configure will run is the `build'
157: AC_CANONICAL_HOST
158: case "$host_cpu" in
159: hppa*)
1.34 anton 160: machine=hppa
1.46 anton 161: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 162: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 163: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 164: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 165: ;;
166: sparc*)
1.34 anton 167: machine=sparc
1.1 anton 168: ;;
1.31 anton 169: i386)
1.34 anton 170: machine=386
1.16 anton 171: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 172: ;;
173: i486)
1.34 anton 174: machine=386
1.31 anton 175: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
176: ;;
1.77 anton 177: i*86)
1.34 anton 178: machine=386
1.55 anton 179: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 180: CFLAGS_1="$CFLAGS"
1.87 pazsan 181: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 182: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 183: ;;
1.72 anton 184: ia64*)
185: machine=ia64
186: ;;
1.26 pazsan 187: m68k)
1.34 anton 188: machine=m68k
1.32 pazsan 189: CFLAGS="$CFLAGS -fomit-frame-pointer"
190: if test "$host_os" = "nextstep3"
191: then
1.87 pazsan 192: AC_LIBOBJ(termios)
1.32 pazsan 193: fi
1.26 pazsan 194: ;;
1.1 anton 195: mips*)
1.34 anton 196: machine=mips
1.92 ! anton 197: #dynamic native code has the following problems on MIPS:
! 198: #
! 199: #1) J/JAL seems relocatable, but is are only
! 200: #relocatable within a 256MB-segment. While we try to
! 201: #get the linker to arrange this, there is no guarantee
! 202: #that this will succeed (and if the user uses a lot of
! 203: #memory, it is likely to fail).
! 204: #
! 205: #2) The way we generate dynamic native code may
! 206: #violate MIPS architectural restrictions (in
! 207: #particular, the delay slots of LW, MFLO, etc.)
! 208: #
! 209: #Therefore we disable dynamic native code by default:
! 210: no_dynamic_default=1
! 211: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
1.7 anton 212: #link text and data segment into the same 256M region!
1.49 anton 213: AC_MSG_CHECKING([whether the linker accepts -T])
214: OLDLDFLAGS=$LDFLAGS
215: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
216: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
217: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
218: AC_MSG_RESULT($ac_link_mips_t)
1.37 anton 219: AC_MSG_CHECKING([whether the linker accepts -D])
220: OLDLDFLAGS=$LDFLAGS
1.49 anton 221: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 222: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 223: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 224: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 225: ;;
1.9 pazsan 226: alpha*)
1.34 anton 227: machine=alpha
1.58 anton 228: #full IEEE FP support for more uniformity across platforms:
229: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 230: ;;
1.69 anton 231: power*|rs6000)
1.34 anton 232: machine=power
1.46 anton 233: $srcdir/mkinstalldirs arch/power
1.87 pazsan 234: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 235: ;;
1.1 anton 236: *)
1.92 ! anton 237: AC_MSG_WARN([Using a generic machine description])
! 238: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
! 239: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 240: machine=generic
1.1 anton 241: esac
1.10 anton 242: AC_SUBST(host)
1.15 pazsan 243: AC_SUBST(ENGINE_FLAGS)
1.1 anton 244:
1.88 pazsan 245: # Try if GCC understands -fno-cross-jump
246:
247: CFLAGS_1="$CFLAGS"
248: CFLAGS="$CFLAGS -fno-cross-jump"
249: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
250:
1.66 anton 251: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 252: AC_SUBST(asm_fs)
253:
1.66 anton 254: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 255: AC_SUBST(disasm_fs)
256:
1.39 pazsan 257: case "$host_os" in
258: *win32)
259: EXE=".exe"
1.88 pazsan 260: DIRSEP="\\"
1.39 pazsan 261: ;;
262: *)
263: EXE=""
1.88 pazsan 264: DIRSEP="/"
1.39 pazsan 265: ;;
266: esac
267: AC_SUBST(EXE)
1.88 pazsan 268: AC_SUBST(DIRSEP)
1.89 pazsan 269: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 270:
1.1 anton 271: dnl Now a little support for DOS/DJGCC
1.30 pazsan 272: AC_SUBST(GFORTH_EXE)
273: GFORTH_EXE=""
1.48 anton 274: AC_SUBST(GFORTHFAST_EXE)
275: GFORTHFAST_EXE=""
1.83 anton 276: AC_SUBST(GFORTHITC_EXE)
277: GFORTHITC_EXE=""
1.30 pazsan 278: AC_SUBST(GFORTHDITC_EXE)
279: GFORTHDITC_EXE=""
1.1 anton 280:
1.24 anton 281: PATHSEP=":"
282: AC_SUBST(PATHSEP)
1.89 pazsan 283: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 284:
285: AC_SUBST(FORTHSIZES)
1.24 anton 286:
1.79 pazsan 287: if test "$PEEPHOLE" = "yes"
288: then
289: PEEPHOLEFLAG="true"
1.89 pazsan 290: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 291: else
292: PEEPHOLEFLAG="false"
293: fi
294: AC_SUBST(PEEPHOLEFLAG)
295:
1.1 anton 296: dnl copy commands for systems that don't have links
1.29 pazsan 297: AC_SUBST(LINK_KERNL)
298: LINK_KERNL=""
1.1 anton 299:
300: #if test $host_os=dos
301: #then
302: # echo Configuring for DOS!!!
303: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 304: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 305: #fi
306:
307: dnl the following macro produces a warning with autoconf-2.1
308: AC_C_BIGENDIAN
1.23 pazsan 309: AC_SUBST(KERNEL)
1.1 anton 310: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
311: if test $ac_cv_c_bigendian = yes; then
312: bytesex=b
1.23 pazsan 313: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 314: else
315: bytesex=l
1.23 pazsan 316: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 317: fi
318:
1.91 anton 319: #check how to do asm(".skip 16")
1.92 ! anton 320: AC_MSG_CHECKING([if and how we can waste code space])
! 321: skipcode=no
1.91 anton 322: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
323: do
324: AC_TRY_RUN(
325: int foo(int);
326: main()
327: {
328: exit(foo(0)!=16);
329: }
330: int foo(int x)
331: {
332: if (x) {
333: label1:
334: asm("$i");
335: label2:
336: }
337: return (&&label2)-(&&label1);
338: }
1.92 ! anton 339: ,skipcode=$i; break
! 340: ,,)
1.91 anton 341: done
1.92 ! anton 342: AC_MSG_RESULT($skipcode)
! 343: if test "$skipcode" = no
! 344: then
! 345: no_dynamic_default=1
! 346: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
! 347: AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
! 348: else
! 349: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
! 350: fi
1.91 anton 351:
1.92 ! anton 352: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 353:
1.1 anton 354: dnl Checks for programs.
355: AC_PROG_LN_S
1.34 anton 356: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 357:
358: dnl Checks for library functions
1.2 anton 359: dnl This check is just for making later checks link with libm.
360: dnl using sin here is no good idea since it is built-into gcc and typechecked
361: AC_CHECK_LIB(m,asin)
1.31 anton 362: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 363: if test "$host_os" != "nextstep3"
364: then
365: AC_FUNC_MEMCMP
366: fi
1.25 pazsan 367: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.71 anton 368: AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
1.19 anton 369: AC_DECL_SYS_SIGLIST
1.92 ! anton 370: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
1.90 anton 371: AC_CHECK_FUNCS(expm1 log1p)
372: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 373: dnl No check for select, because our replacement is no good under
374: dnl anything but DOS
1.62 anton 375: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 376: AC_FUNC_FNMATCH
1.87 pazsan 377: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 378: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 379: AM_PATH_LISPDIR
1.1 anton 380:
1.23 pazsan 381: kernel_fi=kernl${wordsize}${bytesex}.fi
382: AC_SUBST(kernel_fi)
1.50 jwilke 383:
1.76 anton 384: #this breaks bindists
385: #dnl replace srource directory by absolute value
386: #if test $srcdir = "."; then srcdir=`pwd`
387: #fi
1.8 anton 388:
1.34 anton 389: AC_SUBST(machine)
390: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 391: AC_OUTPUT([
392: Makefile
1.45 pazsan 393: Makedist
1.43 anton 394: gforthmi
1.80 anton 395: vmgen
1.79 pazsan 396: machpc.fs
1.35 anton 397: engine/Makefile
1.44 anton 398: doc/version.texi ],
399: echo timestamp > stamp-h
1.43 anton 400: chmod +x gforthmi
1.80 anton 401: chmod +x vmgen
1.44 anton 402: test -d kernel||mkdir kernel)
403:
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