Annotation of gforth/configure.in, revision 1.89
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
27: #note that lexicographic ordering bust be heeded.
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:
1.1 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=$CFLAGS
59:
1.15 pazsan 60: AC_PROG_CC
61:
62: if test "$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
1.89 ! pazsan 120: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
1.23 pazsan 121:
122: ac_cv_int_type_double_cell=none
123: case `expr 2 '*' "$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\'\")."
1.87 pazsan 142: AC_LIBOBJ(dblsub)
1.89 ! pazsan 143: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
1.23 pazsan 144: else
1.89 ! pazsan 145: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.20 anton 146: fi
147:
1.50 jwilke 148: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
149: OLDLDFLAGS=$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: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 164: AC_LIBOBJ(../arch/hppa/cache)
1.50 jwilke 165: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 166: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 167: ;;
168: sparc*)
1.34 anton 169: machine=sparc
1.1 anton 170: ;;
1.31 anton 171: i386)
1.34 anton 172: machine=386
1.16 anton 173: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 174: ;;
175: i486)
1.34 anton 176: machine=386
1.31 anton 177: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
178: ;;
1.77 anton 179: i*86)
1.34 anton 180: machine=386
1.55 anton 181: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 182: CFLAGS_1="$CFLAGS"
1.87 pazsan 183: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 184: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 185: ;;
1.72 anton 186: ia64*)
187: machine=ia64
188: ;;
1.26 pazsan 189: m68k)
1.34 anton 190: machine=m68k
1.32 pazsan 191: CFLAGS="$CFLAGS -fomit-frame-pointer"
192: if test "$host_os" = "nextstep3"
193: then
1.87 pazsan 194: AC_LIBOBJ(termios)
1.32 pazsan 195: fi
1.26 pazsan 196: ;;
1.1 anton 197: mips*)
1.34 anton 198: machine=mips
1.7 anton 199: #link text and data segment into the same 256M region!
1.49 anton 200: AC_MSG_CHECKING([whether the linker accepts -T])
201: OLDLDFLAGS=$LDFLAGS
202: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
203: AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
204: test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
205: AC_MSG_RESULT($ac_link_mips_t)
1.83 anton 206: fixme #dynamically generated code should be in the same 256MB
207: # region as the text segment; no indirect threading necessary
1.89 ! pazsan 208: test $ac_link_mips_t = yes||(echo cannot link text and data into same 256M region, using indirect threading; AC_DEFINE(INDIRECT_THREADED,,[Define if you want to force an indirect threaded code implementation]))
1.37 anton 209: AC_MSG_CHECKING([whether the linker accepts -D])
210: OLDLDFLAGS=$LDFLAGS
1.49 anton 211: LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37 anton 212: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49 anton 213: test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37 anton 214: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 215: ;;
1.9 pazsan 216: alpha*)
1.34 anton 217: machine=alpha
1.58 anton 218: #full IEEE FP support for more uniformity across platforms:
219: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 220: ;;
1.69 anton 221: power*|rs6000)
1.34 anton 222: machine=power
1.46 anton 223: $srcdir/mkinstalldirs arch/power
1.87 pazsan 224: AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31 anton 225: ;;
1.1 anton 226: *)
1.20 anton 227: echo "Using a generic machine description."
1.1 anton 228: echo "I'll assume that C floats and doubles are represented by IEEE single and"
229: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 230: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34 anton 231: machine=generic
1.1 anton 232: esac
1.10 anton 233: AC_SUBST(host)
1.15 pazsan 234: AC_SUBST(ENGINE_FLAGS)
1.1 anton 235:
1.88 pazsan 236: # Try if GCC understands -fno-cross-jump
237:
238: CFLAGS_1="$CFLAGS"
239: CFLAGS="$CFLAGS -fno-cross-jump"
240: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
241:
1.66 anton 242: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 243: AC_SUBST(asm_fs)
244:
1.66 anton 245: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 246: AC_SUBST(disasm_fs)
247:
1.39 pazsan 248: case "$host_os" in
249: *win32)
250: EXE=".exe"
1.88 pazsan 251: DIRSEP="\\"
1.39 pazsan 252: ;;
253: *)
254: EXE=""
1.88 pazsan 255: DIRSEP="/"
1.39 pazsan 256: ;;
257: esac
258: AC_SUBST(EXE)
1.88 pazsan 259: AC_SUBST(DIRSEP)
1.89 ! pazsan 260: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.39 pazsan 261:
1.1 anton 262: dnl Now a little support for DOS/DJGCC
1.30 pazsan 263: AC_SUBST(GFORTH_EXE)
264: GFORTH_EXE=""
1.48 anton 265: AC_SUBST(GFORTHFAST_EXE)
266: GFORTHFAST_EXE=""
1.83 anton 267: AC_SUBST(GFORTHITC_EXE)
268: GFORTHITC_EXE=""
1.30 pazsan 269: AC_SUBST(GFORTHDITC_EXE)
270: GFORTHDITC_EXE=""
1.1 anton 271:
1.24 anton 272: PATHSEP=":"
273: AC_SUBST(PATHSEP)
1.89 ! pazsan 274: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.27 anton 275:
276: AC_SUBST(FORTHSIZES)
1.24 anton 277:
1.79 pazsan 278: if test "$PEEPHOLE" = "yes"
279: then
280: PEEPHOLEFLAG="true"
1.89 ! pazsan 281: AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
1.79 pazsan 282: else
283: PEEPHOLEFLAG="false"
284: fi
285: AC_SUBST(PEEPHOLEFLAG)
286:
1.1 anton 287: dnl copy commands for systems that don't have links
1.29 pazsan 288: AC_SUBST(LINK_KERNL)
289: LINK_KERNL=""
1.1 anton 290:
291: #if test $host_os=dos
292: #then
293: # echo Configuring for DOS!!!
294: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 295: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 296: #fi
297:
298: dnl the following macro produces a warning with autoconf-2.1
299: AC_C_BIGENDIAN
1.23 pazsan 300: AC_SUBST(KERNEL)
1.1 anton 301: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
302: if test $ac_cv_c_bigendian = yes; then
303: bytesex=b
1.23 pazsan 304: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 305: else
306: bytesex=l
1.23 pazsan 307: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 308: fi
309:
310: dnl Checks for programs.
311: AC_PROG_LN_S
1.34 anton 312: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 313:
314: dnl Checks for library functions
1.2 anton 315: dnl This check is just for making later checks link with libm.
316: dnl using sin here is no good idea since it is built-into gcc and typechecked
317: AC_CHECK_LIB(m,asin)
1.31 anton 318: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 319: if test "$host_os" != "nextstep3"
320: then
321: AC_FUNC_MEMCMP
322: fi
1.25 pazsan 323: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.71 anton 324: AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
1.19 anton 325: AC_DECL_SYS_SIGLIST
1.87 pazsan 326: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt.$ac_objext getopt1))
1.11 anton 327: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 328: AC_REPLACE_FUNCS(ecvt)
329: dnl No check for select, because our replacement is no good under
330: dnl anything but DOS
1.62 anton 331: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 332: AC_FUNC_FNMATCH
1.87 pazsan 333: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 334: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 335: AM_PATH_LISPDIR
1.1 anton 336:
1.23 pazsan 337: kernel_fi=kernl${wordsize}${bytesex}.fi
338: AC_SUBST(kernel_fi)
1.50 jwilke 339:
1.76 anton 340: #this breaks bindists
341: #dnl replace srource directory by absolute value
342: #if test $srcdir = "."; then srcdir=`pwd`
343: #fi
1.8 anton 344:
1.34 anton 345: AC_SUBST(machine)
346: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 347: AC_OUTPUT([
348: Makefile
1.45 pazsan 349: Makedist
1.43 anton 350: gforthmi
1.80 anton 351: vmgen
1.79 pazsan 352: machpc.fs
1.35 anton 353: engine/Makefile
1.44 anton 354: doc/version.texi ],
355: echo timestamp > stamp-h
1.43 anton 356: chmod +x gforthmi
1.80 anton 357: chmod +x vmgen
1.44 anton 358: test -d kernel||mkdir kernel)
359:
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