Annotation of gforth/configure.in, revision 1.75
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
1.75 ! anton 25: AM_INIT_AUTOMAKE(gforth,0.5.0)
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:
38: AC_DEFINE(FORCE_REG))
39: dnl this is not quite according to the autoconf manual, it causes a replacement
40: AC_ARG_ENABLE(direct-threaded,
41: [ --enable-direct-threaded Force direct threading. This may not work on
42: some machines and may cause slowdown on others.
43: (default processor-dependent)],
44: AC_DEFINE(DIRECT_THREADED))
45: AC_ARG_ENABLE(indirect-threaded,
46: [ --enable-indirect-threaded Force indirect threading. This can cause a
47: slowdown on some machines.
48: (default processor-dependent)],
49: AC_DEFINE(INDIRECT_THREADED))
50:
1.9 pazsan 51: AC_ARG_WITH(debug,
1.10 anton 52: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 53: --without-debug omits the -g switch and creates smaller images on
54: machines where "strip" has problems with gcc style
55: debugging informations.],
1.9 pazsan 56: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
57:
1.16 anton 58: CFLAGS=$CFLAGS
59:
1.15 pazsan 60: AC_PROG_CC
61:
62: if test "$GCC" = "yes"
63: then
64: echo "Fine, gcc is available"
65: else
66: cat <<'EOF'
1.16 anton 67: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
68: It does not work with other C compilers. Please install the GNU C compiler,
69: and try again (or search for a binary distribution for your platform).
1.15 pazsan 70: EOF
71: exit 1
72: fi
1.9 pazsan 73:
1.15 pazsan 74: AC_SUBST(CC)
1.9 pazsan 75: AC_SUBST(DEBUGFLAG)
1.7 anton 76:
1.10 anton 77: dnl the following macro produces a warning with autoconf-2.1
78: AC_CHECK_SIZEOF(char *)
79: case "$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:
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: $ac_cv_sizeof_long_long)
112: ac_cv_int_type_cell="long long"
113: ;;
114: esac
1.22 pazsan 115: if test "$ac_cv_int_type_cell" != int; then
1.20 anton 116: echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
117: echo "Since you don't have a proper C on this machine, that's one more reason"
118: echo "to use Forth;-)"
119: fi
1.23 pazsan 120: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
121:
122: ac_cv_int_type_double_cell=none
123: case `expr 2 '*' "$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: $ac_cv_sizeof_long_long)
134: ac_cv_int_type_double_cell="long long"
135: ;;
136: esac
1.21 anton 137: if test "$ac_cv_int_type_double_cell" = none; then
1.20 anton 138: echo "Emulating double-cell arithmetic. This may be slow."
139: echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23 pazsan 140: echo 'long longs for your machine (the GCC manual states that they \"are twice as'
141: echo "long as \`long int\'\")."
1.20 anton 142: LIBOBJS="$LIBOBJS dblsub.o"
143: AC_DEFINE(BUGGY_LONG_LONG)
1.23 pazsan 144: else
145: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20 anton 146: fi
147:
1.50 jwilke 148: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
149: OLDLDFLAGS=$LDFLAGS
150: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 151: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
152: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
153: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 154: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
155: AC_MSG_RESULT($ac_export_dynamic)
156:
1.1 anton 157: #terminology is a bit unusual here: The host is the system on which
158: #gforth will run; the system on which configure will run is the `build'
159: AC_CANONICAL_HOST
160: case "$host_cpu" in
161: hppa*)
1.34 anton 162: machine=hppa
1.46 anton 163: $srcdir/mkinstalldirs arch/hppa
1.38 anton 164: LIBOBJS="$LIBOBJS ../arch/hppa/cache.o"
1.50 jwilke 165: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 166: LIBS="$LIBS -L/lib/pa1.1/"
1.31 anton 167: if test "${enable_direct_threaded+set}" = ""
168: then
169: AC_DEFINE(DIRECT_THREADED)
170: fi
1.1 anton 171: ;;
172: sparc*)
1.34 anton 173: machine=sparc
1.1 anton 174: ;;
1.31 anton 175: i386)
1.34 anton 176: machine=386
1.16 anton 177: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 178: if test "${enable_direct_threaded+set}" = "" \
179: -a "${enable_indirect_threaded+set}" = ""
180: then
1.34 anton 181: echo "Using direct threaded code on 386"
1.31 anton 182: AC_DEFINE(DIRECT_THREADED)
183: fi
184: ;;
185: i486)
1.34 anton 186: machine=386
1.31 anton 187: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
188: if test "${enable_direct_threaded+set}" = "" \
189: -a "${enable_indirect_threaded+set}" = ""
190: then
1.34 anton 191: echo "Using direct threaded code on 486"
1.31 anton 192: AC_DEFINE(DIRECT_THREADED)
193: fi
194: ;;
1.53 pazsan 195: i586)
1.34 anton 196: machine=386
1.55 anton 197: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 198: CFLAGS_1="$CFLAGS"
199: CFLAGS="$CFLAGS -mpentium"
200: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.31 anton 201: if test "${enable_direct_threaded+set}" = "" \
202: -a "${enable_indirect_threaded+set}" = ""
203: then
1.53 pazsan 204: echo "Using indirect threaded code on Pentium/K5/K6"
1.31 anton 205: AC_DEFINE(INDIRECT_THREADED)
1.53 pazsan 206: fi
207: ;;
208: i686)
209: machine=386
1.55 anton 210: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 211: CFLAGS_1="$CFLAGS"
1.68 pazsan 212: CFLAGS="$CFLAGS -mpentium"
1.56 pazsan 213: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.53 pazsan 214: if test "${enable_direct_threaded+set}" = "" \
215: -a "${enable_indirect_threaded+set}" = ""
216: then
1.59 pazsan 217: echo "Using direct threaded code on Athlon/PPro/Pentium II/Pentium III"
1.53 pazsan 218: AC_DEFINE(DIRECT_THREADED)
1.31 anton 219: fi
1.1 anton 220: ;;
1.72 anton 221: ia64*)
222: machine=ia64
223: ;;
1.26 pazsan 224: m68k)
1.34 anton 225: machine=m68k
1.32 pazsan 226: CFLAGS="$CFLAGS -fomit-frame-pointer"
227: if test "$host_os" = "nextstep3"
228: then
229: LIBOBJS="$LIBOBJS termios.o"
230: fi
1.26 pazsan 231: ;;
1.1 anton 232: mips*)
1.34 anton 233: machine=mips
1.7 anton 234: #link text and data segment into the same 256M region!
1.49 anton 235: AC_MSG_CHECKING([whether the linker accepts -T])
236: OLDLDFLAGS=$LDFLAGS
237: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
238: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
239: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
240: AC_MSG_RESULT($ac_link_mips_t)
241: test $ac_link_mips_t = yes||(echo cannot link text and data into same 256M region, using indirect threading; AC_DEFINE(INDIRECT_THREADED))
1.37 anton 242: AC_MSG_CHECKING([whether the linker accepts -D])
243: OLDLDFLAGS=$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: $srcdir/mkinstalldirs arch/power
1.36 anton 257: AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o")
1.64 anton 258: #link text segment into first 32MB
259: AC_MSG_CHECKING([whether the linker accepts --script=arch/power/elf32ppc.x])
260: OLDLDFLAGS=$LDFLAGS
261: #the -L../$srcdir helps when $srcdir is relative
262: LDFLAGS="$LDFLAGS -L$srcdir -L../$srcdir -Xlinker --script=$srcdir/arch/power/elf32ppc.x"
263: AC_TRY_LINK(,,ac_link_script=yes,ac_link_script=no)
264: test $ac_link_script = yes||LDFLAGS=$OLDLDFLAGS
265: AC_MSG_RESULT($ac_link_script)
1.65 anton 266: AC_MSG_CHECKING([whether the code is in the first 32MB])
267: AC_TRY_RUN([main(){label: exit(((unsigned long)&&label)>32000000UL);}],ac_code_under_32=yes,ac_code_under_32=no,ac_code_under_32=no)
268: AC_MSG_RESULT($ac_code_under_32)
1.70 anton 269: test $ac_code_under_32 = yes||(AC_MSG_WARN([Using indirect threading]); AC_DEFINE(INDIRECT_THREADED))
1.31 anton 270: ;;
1.1 anton 271: *)
272: echo "No direct threading support for $host_cpu, using indirect threading."
1.20 anton 273: echo "Using a generic machine description."
1.1 anton 274: echo "I'll assume that C floats and doubles are represented by IEEE single and"
275: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 276: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34 anton 277: machine=generic
1.1 anton 278: esac
1.10 anton 279: AC_SUBST(host)
1.15 pazsan 280: AC_SUBST(ENGINE_FLAGS)
1.1 anton 281:
1.66 anton 282: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 283: AC_SUBST(asm_fs)
284:
1.66 anton 285: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 286: AC_SUBST(disasm_fs)
287:
1.39 pazsan 288: case "$host_os" in
289: *win32)
290: EXE=".exe"
291: ;;
292: *)
293: EXE=""
294: ;;
295: esac
296: AC_SUBST(EXE)
297:
1.1 anton 298: dnl Now a little support for DOS/DJGCC
1.30 pazsan 299: AC_SUBST(GFORTH_EXE)
300: GFORTH_EXE=""
1.48 anton 301: AC_SUBST(GFORTHFAST_EXE)
302: GFORTHFAST_EXE=""
1.30 pazsan 303: AC_SUBST(GFORTHDITC_EXE)
304: GFORTHDITC_EXE=""
1.1 anton 305:
1.24 anton 306: PATHSEP=":"
307: AC_SUBST(PATHSEP)
308: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27 anton 309:
310: AC_SUBST(FORTHSIZES)
1.24 anton 311:
1.1 anton 312: dnl copy commands for systems that don't have links
1.29 pazsan 313: AC_SUBST(LINK_KERNL)
314: LINK_KERNL=""
1.1 anton 315:
316: #if test $host_os=dos
317: #then
318: # echo Configuring for DOS!!!
319: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 320: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 321: #fi
322:
323: dnl the following macro produces a warning with autoconf-2.1
324: AC_C_BIGENDIAN
1.23 pazsan 325: AC_SUBST(KERNEL)
1.1 anton 326: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
327: if test $ac_cv_c_bigendian = yes; then
328: bytesex=b
1.23 pazsan 329: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 330: else
331: bytesex=l
1.23 pazsan 332: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 333: fi
334:
335: dnl Checks for programs.
336: AC_PROG_LN_S
1.34 anton 337: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 338:
339: dnl Checks for library functions
1.2 anton 340: dnl This check is just for making later checks link with libm.
341: dnl using sin here is no good idea since it is built-into gcc and typechecked
342: AC_CHECK_LIB(m,asin)
1.31 anton 343: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 344: if test "$host_os" != "nextstep3"
345: then
346: AC_FUNC_MEMCMP
347: fi
1.25 pazsan 348: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.71 anton 349: AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
1.19 anton 350: AC_DECL_SYS_SIGLIST
1.34 anton 351: AC_CHECK_FUNC(getopt_long,true,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
1.11 anton 352: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 353: AC_REPLACE_FUNCS(ecvt)
354: dnl No check for select, because our replacement is no good under
355: dnl anything but DOS
1.62 anton 356: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 357: AC_FUNC_FNMATCH
358: test $ac_cv_func_fnmatch_works = yes || LIBOBJS="$LIBOBJS fnmatch.o"
1.28 anton 359: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 360: AM_PATH_LISPDIR
1.1 anton 361:
1.23 pazsan 362: kernel_fi=kernl${wordsize}${bytesex}.fi
363: AC_SUBST(kernel_fi)
1.50 jwilke 364:
365: dnl replace srource directory by absolute value
366: if test $srcdir = "."; then srcdir=`pwd`
367: fi
1.8 anton 368:
1.34 anton 369: AC_SUBST(machine)
370: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 371: AC_OUTPUT([
372: Makefile
1.45 pazsan 373: Makedist
1.43 anton 374: gforthmi
1.35 anton 375: engine/Makefile
1.44 anton 376: doc/version.texi ],
377: echo timestamp > stamp-h
1.43 anton 378: chmod +x gforthmi
1.44 anton 379: test -d kernel||mkdir kernel)
380:
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