Annotation of gforth/configure.in, revision 1.82
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
1.81 anton 25: AM_INIT_AUTOMAKE(gforth,0.5.9-20010501)
1.47 anton 26: #snapshots have numbers major.minor.release-YYYYMMDD
27: #note that lexicographic ordering bust be heeded.
28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.34 anton 29: AM_CONFIG_HEADER(engine/config.h)
1.57 anton 30: #AM_CYGWIN32
1.14 anton 31:
1.1 anton 32: AC_ARG_ENABLE(force-reg,
33: [ --enable-force-reg Use explicit register declarations if they appear in
34: the machine.h file. This can cause a good speedup,
35: but also incorrect code with some gcc versions on
36: some processors (default disabled).],
37: AC_DEFINE(FORCE_REG))
38:
1.9 pazsan 39: AC_ARG_WITH(debug,
1.10 anton 40: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 41: --without-debug omits the -g switch and creates smaller images on
42: machines where "strip" has problems with gcc style
43: debugging informations.],
1.9 pazsan 44: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
45:
1.79 pazsan 46: PEEPHOLE="yes"
47: AC_ARG_WITH(peephole,
48: [ --with-peephole Enable peephole optimization (default)
49: --without-peephole disables peephole optimization. Creates smaller,
50: but slower images.],
51: PEEPHOLE="$withval")
1.82 ! anton 52:
! 53: #currently we force direct threading this way. Eventually we should
! 54: #setup in the arch and engine files right
! 55: AC_DEFINE(DIRECT_THREADED)
1.79 pazsan 56:
1.16 anton 57: CFLAGS=$CFLAGS
58:
1.15 pazsan 59: AC_PROG_CC
60:
61: if test "$GCC" = "yes"
62: then
63: echo "Fine, gcc is available"
64: else
65: cat <<'EOF'
1.16 anton 66: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
67: It does not work with other C compilers. Please install the GNU C compiler,
68: and try again (or search for a binary distribution for your platform).
1.15 pazsan 69: EOF
70: exit 1
71: fi
1.9 pazsan 72:
1.15 pazsan 73: AC_SUBST(CC)
1.9 pazsan 74: AC_SUBST(DEBUGFLAG)
1.7 anton 75:
1.10 anton 76: dnl the following macro produces a warning with autoconf-2.1
77: AC_CHECK_SIZEOF(char *)
78: case "$ac_cv_sizeof_char_p" in
79: 2)
80: wordsize=16
81: ;;
82: 4)
83: wordsize=32
84: ;;
85: 8)
86: wordsize=64
87: ;;
88: esac
1.9 pazsan 89:
1.40 pazsan 90: AC_CHECK_SIZEOF(char)
1.23 pazsan 91: AC_CHECK_SIZEOF(short)
92: AC_CHECK_SIZEOF(int)
93: AC_CHECK_SIZEOF(long)
94: AC_CHECK_SIZEOF(long long)
95:
96: ac_cv_int_type_cell=none
97: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 98: $ac_cv_sizeof_int)
99: ac_cv_int_type_cell=int
100: ;;
1.23 pazsan 101: $ac_cv_sizeof_short)
102: ac_cv_int_type_cell=short
103: ;;
1.40 pazsan 104: $ac_cv_sizeof_char)
105: ac_cv_int_type_cell=char
1.23 pazsan 106: ;;
107: $ac_cv_sizeof_long)
108: ac_cv_int_type_cell=long
109: ;;
110: $ac_cv_sizeof_long_long)
111: ac_cv_int_type_cell="long long"
112: ;;
113: esac
1.22 pazsan 114: if test "$ac_cv_int_type_cell" != int; then
1.20 anton 115: echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
116: echo "Since you don't have a proper C on this machine, that's one more reason"
117: echo "to use Forth;-)"
118: fi
1.23 pazsan 119: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
120:
121: ac_cv_int_type_double_cell=none
122: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
123: $ac_cv_sizeof_short)
124: ac_cv_int_type_double_cell=short
125: ;;
126: $ac_cv_sizeof_int)
127: ac_cv_int_type_double_cell=int
128: ;;
129: $ac_cv_sizeof_long)
130: ac_cv_int_type_double_cell=long
131: ;;
132: $ac_cv_sizeof_long_long)
133: ac_cv_int_type_double_cell="long long"
134: ;;
135: esac
1.21 anton 136: if test "$ac_cv_int_type_double_cell" = none; then
1.20 anton 137: echo "Emulating double-cell arithmetic. This may be slow."
138: echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23 pazsan 139: echo 'long longs for your machine (the GCC manual states that they \"are twice as'
140: echo "long as \`long int\'\")."
1.20 anton 141: LIBOBJS="$LIBOBJS dblsub.o"
142: AC_DEFINE(BUGGY_LONG_LONG)
1.23 pazsan 143: else
144: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20 anton 145: fi
146:
1.50 jwilke 147: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
148: OLDLDFLAGS=$LDFLAGS
149: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 150: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
151: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
152: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 153: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
154: AC_MSG_RESULT($ac_export_dynamic)
155:
1.1 anton 156: #terminology is a bit unusual here: The host is the system on which
157: #gforth will run; the system on which configure will run is the `build'
158: AC_CANONICAL_HOST
159: case "$host_cpu" in
160: hppa*)
1.34 anton 161: machine=hppa
1.46 anton 162: $srcdir/mkinstalldirs arch/hppa
1.38 anton 163: LIBOBJS="$LIBOBJS ../arch/hppa/cache.o"
1.50 jwilke 164: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 165: LIBS="$LIBS -L/lib/pa1.1/"
1.31 anton 166: if test "${enable_direct_threaded+set}" = ""
167: then
168: AC_DEFINE(DIRECT_THREADED)
169: fi
1.1 anton 170: ;;
171: sparc*)
1.34 anton 172: machine=sparc
1.1 anton 173: ;;
1.31 anton 174: i386)
1.34 anton 175: machine=386
1.16 anton 176: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 177: if test "${enable_direct_threaded+set}" = "" \
178: -a "${enable_indirect_threaded+set}" = ""
179: then
1.34 anton 180: echo "Using direct threaded code on 386"
1.31 anton 181: AC_DEFINE(DIRECT_THREADED)
182: fi
183: ;;
184: i486)
1.34 anton 185: machine=386
1.31 anton 186: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
187: if test "${enable_direct_threaded+set}" = "" \
188: -a "${enable_indirect_threaded+set}" = ""
189: then
1.34 anton 190: echo "Using direct threaded code on 486"
1.31 anton 191: AC_DEFINE(DIRECT_THREADED)
192: fi
193: ;;
1.77 anton 194: i*86)
1.34 anton 195: machine=386
1.55 anton 196: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 197: CFLAGS_1="$CFLAGS"
198: CFLAGS="$CFLAGS -mpentium"
199: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.31 anton 200: if test "${enable_direct_threaded+set}" = "" \
201: -a "${enable_indirect_threaded+set}" = ""
202: then
1.77 anton 203: echo "Using indirect threaded code on IA32 CPUs with split L1 caches"
1.31 anton 204: AC_DEFINE(INDIRECT_THREADED)
205: fi
1.1 anton 206: ;;
1.72 anton 207: ia64*)
208: machine=ia64
209: ;;
1.26 pazsan 210: m68k)
1.34 anton 211: machine=m68k
1.32 pazsan 212: CFLAGS="$CFLAGS -fomit-frame-pointer"
213: if test "$host_os" = "nextstep3"
214: then
215: LIBOBJS="$LIBOBJS termios.o"
216: fi
1.26 pazsan 217: ;;
1.1 anton 218: mips*)
1.34 anton 219: machine=mips
1.7 anton 220: #link text and data segment into the same 256M region!
1.49 anton 221: AC_MSG_CHECKING([whether the linker accepts -T])
222: OLDLDFLAGS=$LDFLAGS
223: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
224: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
225: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
226: AC_MSG_RESULT($ac_link_mips_t)
227: test $ac_link_mips_t = yes||(echo cannot link text and data into same 256M region, using indirect threading; AC_DEFINE(INDIRECT_THREADED))
1.37 anton 228: AC_MSG_CHECKING([whether the linker accepts -D])
229: OLDLDFLAGS=$LDFLAGS
1.49 anton 230: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 231: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 232: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 233: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 234: ;;
1.9 pazsan 235: alpha*)
1.34 anton 236: machine=alpha
1.58 anton 237: #full IEEE FP support for more uniformity across platforms:
238: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 239: ;;
1.69 anton 240: power*|rs6000)
1.34 anton 241: machine=power
1.46 anton 242: $srcdir/mkinstalldirs arch/power
1.36 anton 243: AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o")
1.64 anton 244: #link text segment into first 32MB
245: AC_MSG_CHECKING([whether the linker accepts --script=arch/power/elf32ppc.x])
246: OLDLDFLAGS=$LDFLAGS
247: #the -L../$srcdir helps when $srcdir is relative
248: LDFLAGS="$LDFLAGS -L$srcdir -L../$srcdir -Xlinker --script=$srcdir/arch/power/elf32ppc.x"
249: AC_TRY_LINK(,,ac_link_script=yes,ac_link_script=no)
250: test $ac_link_script = yes||LDFLAGS=$OLDLDFLAGS
251: AC_MSG_RESULT($ac_link_script)
1.65 anton 252: AC_MSG_CHECKING([whether the code is in the first 32MB])
253: AC_TRY_RUN([main(){label: exit(((unsigned long)&&label)>32000000UL);}],ac_code_under_32=yes,ac_code_under_32=no,ac_code_under_32=no)
254: AC_MSG_RESULT($ac_code_under_32)
1.70 anton 255: test $ac_code_under_32 = yes||(AC_MSG_WARN([Using indirect threading]); AC_DEFINE(INDIRECT_THREADED))
1.31 anton 256: ;;
1.1 anton 257: *)
258: echo "No direct threading support for $host_cpu, using indirect threading."
1.20 anton 259: echo "Using a generic machine description."
1.1 anton 260: echo "I'll assume that C floats and doubles are represented by IEEE single and"
261: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 262: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34 anton 263: machine=generic
1.1 anton 264: esac
1.10 anton 265: AC_SUBST(host)
1.15 pazsan 266: AC_SUBST(ENGINE_FLAGS)
1.1 anton 267:
1.66 anton 268: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 269: AC_SUBST(asm_fs)
270:
1.66 anton 271: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 272: AC_SUBST(disasm_fs)
273:
1.39 pazsan 274: case "$host_os" in
275: *win32)
276: EXE=".exe"
277: ;;
278: *)
279: EXE=""
280: ;;
281: esac
282: AC_SUBST(EXE)
283:
1.1 anton 284: dnl Now a little support for DOS/DJGCC
1.30 pazsan 285: AC_SUBST(GFORTH_EXE)
286: GFORTH_EXE=""
1.48 anton 287: AC_SUBST(GFORTHFAST_EXE)
288: GFORTHFAST_EXE=""
1.30 pazsan 289: AC_SUBST(GFORTHDITC_EXE)
290: GFORTHDITC_EXE=""
1.1 anton 291:
1.24 anton 292: PATHSEP=":"
293: AC_SUBST(PATHSEP)
294: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27 anton 295:
296: AC_SUBST(FORTHSIZES)
1.24 anton 297:
1.79 pazsan 298: if test "$PEEPHOLE" = "yes"
299: then
300: PEEPHOLEFLAG="true"
301: AC_DEFINE(HAS_PEEPHOLE)
302: else
303: PEEPHOLEFLAG="false"
304: fi
305: AC_SUBST(PEEPHOLEFLAG)
306:
1.1 anton 307: dnl copy commands for systems that don't have links
1.29 pazsan 308: AC_SUBST(LINK_KERNL)
309: LINK_KERNL=""
1.1 anton 310:
311: #if test $host_os=dos
312: #then
313: # echo Configuring for DOS!!!
314: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 315: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 316: #fi
317:
318: dnl the following macro produces a warning with autoconf-2.1
319: AC_C_BIGENDIAN
1.23 pazsan 320: AC_SUBST(KERNEL)
1.1 anton 321: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
322: if test $ac_cv_c_bigendian = yes; then
323: bytesex=b
1.23 pazsan 324: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 325: else
326: bytesex=l
1.23 pazsan 327: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 328: fi
329:
330: dnl Checks for programs.
331: AC_PROG_LN_S
1.34 anton 332: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 333:
334: dnl Checks for library functions
1.2 anton 335: dnl This check is just for making later checks link with libm.
336: dnl using sin here is no good idea since it is built-into gcc and typechecked
337: AC_CHECK_LIB(m,asin)
1.31 anton 338: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 339: if test "$host_os" != "nextstep3"
340: then
341: AC_FUNC_MEMCMP
342: fi
1.25 pazsan 343: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.71 anton 344: AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
1.19 anton 345: AC_DECL_SYS_SIGLIST
1.34 anton 346: AC_CHECK_FUNC(getopt_long,true,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
1.11 anton 347: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 348: AC_REPLACE_FUNCS(ecvt)
349: dnl No check for select, because our replacement is no good under
350: dnl anything but DOS
1.62 anton 351: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 352: AC_FUNC_FNMATCH
353: test $ac_cv_func_fnmatch_works = yes || LIBOBJS="$LIBOBJS fnmatch.o"
1.28 anton 354: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 355: AM_PATH_LISPDIR
1.1 anton 356:
1.23 pazsan 357: kernel_fi=kernl${wordsize}${bytesex}.fi
358: AC_SUBST(kernel_fi)
1.50 jwilke 359:
1.76 anton 360: #this breaks bindists
361: #dnl replace srource directory by absolute value
362: #if test $srcdir = "."; then srcdir=`pwd`
363: #fi
1.8 anton 364:
1.34 anton 365: AC_SUBST(machine)
366: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 367: AC_OUTPUT([
368: Makefile
1.45 pazsan 369: Makedist
1.43 anton 370: gforthmi
1.80 anton 371: vmgen
1.79 pazsan 372: machpc.fs
1.35 anton 373: engine/Makefile
1.44 anton 374: doc/version.texi ],
375: echo timestamp > stamp-h
1.43 anton 376: chmod +x gforthmi
1.80 anton 377: chmod +x vmgen
1.44 anton 378: test -d kernel||mkdir kernel)
379:
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