Annotation of gforth/configure.in, revision 1.38
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
3: #Copyright (C) 1995,1996 Free Software Foundation, Inc.
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
19: #Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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
25: AM_INIT_AUTOMAKE(gforth,0.4.0)
26: AM_CONFIG_HEADER(engine/config.h)
27: AM_CYGWIN32
1.14 anton 28:
1.1 anton 29: AC_ARG_ENABLE(force-reg,
30: [ --enable-force-reg Use explicit register declarations if they appear in
31: the machine.h file. This can cause a good speedup,
32: but also incorrect code with some gcc versions on
33: some processors (default disabled).],
34:
35: AC_DEFINE(FORCE_REG))
36: dnl this is not quite according to the autoconf manual, it causes a replacement
37: AC_ARG_ENABLE(direct-threaded,
38: [ --enable-direct-threaded Force direct threading. This may not work on
39: some machines and may cause slowdown on others.
40: (default processor-dependent)],
41: AC_DEFINE(DIRECT_THREADED))
42: AC_ARG_ENABLE(indirect-threaded,
43: [ --enable-indirect-threaded Force indirect threading. This can cause a
44: slowdown on some machines.
45: (default processor-dependent)],
46: AC_DEFINE(INDIRECT_THREADED))
47:
1.9 pazsan 48: AC_ARG_WITH(debug,
1.10 anton 49: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 50: --without-debug omits the -g switch and creates smaller images on
51: machines where "strip" has problems with gcc style
52: debugging informations.],
1.9 pazsan 53: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
54:
1.16 anton 55: CFLAGS=$CFLAGS
56:
1.15 pazsan 57: AC_PROG_CC
58:
59: if test "$GCC" = "yes"
60: then
61: echo "Fine, gcc is available"
62: else
63: cat <<'EOF'
1.16 anton 64: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
65: It does not work with other C compilers. Please install the GNU C compiler,
66: and try again (or search for a binary distribution for your platform).
1.15 pazsan 67: EOF
68: exit 1
69: fi
1.9 pazsan 70:
1.15 pazsan 71: AC_SUBST(CC)
1.9 pazsan 72: AC_SUBST(DEBUGFLAG)
1.7 anton 73:
1.10 anton 74: dnl the following macro produces a warning with autoconf-2.1
75: AC_CHECK_SIZEOF(char *)
76: case "$ac_cv_sizeof_char_p" in
77: 2)
78: wordsize=16
79: ;;
80: 4)
81: wordsize=32
82: ;;
83: 8)
84: wordsize=64
85: ;;
86: esac
1.9 pazsan 87:
1.23 pazsan 88: AC_CHECK_SIZEOF(short)
89: AC_CHECK_SIZEOF(int)
90: AC_CHECK_SIZEOF(long)
91: AC_CHECK_SIZEOF(long long)
92:
93: ac_cv_int_type_cell=none
94: case "$ac_cv_sizeof_char_p" in
95: $ac_cv_sizeof_short)
96: ac_cv_int_type_cell=short
97: ;;
98: $ac_cv_sizeof_int)
99: ac_cv_int_type_cell=int
100: ;;
101: $ac_cv_sizeof_long)
102: ac_cv_int_type_cell=long
103: ;;
104: $ac_cv_sizeof_long_long)
105: ac_cv_int_type_cell="long long"
106: ;;
107: esac
1.22 pazsan 108: if test "$ac_cv_int_type_cell" != int; then
1.20 anton 109: echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
110: echo "Since you don't have a proper C on this machine, that's one more reason"
111: echo "to use Forth;-)"
112: fi
1.23 pazsan 113: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
114:
115: ac_cv_int_type_double_cell=none
116: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
117: $ac_cv_sizeof_short)
118: ac_cv_int_type_double_cell=short
119: ;;
120: $ac_cv_sizeof_int)
121: ac_cv_int_type_double_cell=int
122: ;;
123: $ac_cv_sizeof_long)
124: ac_cv_int_type_double_cell=long
125: ;;
126: $ac_cv_sizeof_long_long)
127: ac_cv_int_type_double_cell="long long"
128: ;;
129: esac
1.21 anton 130: if test "$ac_cv_int_type_double_cell" = none; then
1.20 anton 131: echo "Emulating double-cell arithmetic. This may be slow."
132: echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23 pazsan 133: echo 'long longs for your machine (the GCC manual states that they \"are twice as'
134: echo "long as \`long int\'\")."
1.20 anton 135: LIBOBJS="$LIBOBJS dblsub.o"
136: AC_DEFINE(BUGGY_LONG_LONG)
1.23 pazsan 137: else
138: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20 anton 139: fi
140:
1.1 anton 141: #terminology is a bit unusual here: The host is the system on which
142: #gforth will run; the system on which configure will run is the `build'
143: AC_CANONICAL_HOST
144: case "$host_cpu" in
145: hppa*)
1.34 anton 146: machine=hppa
1.38 ! anton 147: LIBOBJS="$LIBOBJS ../arch/hppa/cache.o"
1.6 pazsan 148: LDFLAGS="-Xlinker -N"
149: LIBS="-L/lib/pa1.1/"
1.31 anton 150: if test "${enable_direct_threaded+set}" = ""
151: then
152: AC_DEFINE(DIRECT_THREADED)
153: fi
1.1 anton 154: ;;
155: sparc*)
1.34 anton 156: machine=sparc
1.1 anton 157: ;;
1.31 anton 158: i386)
1.34 anton 159: machine=386
1.16 anton 160: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 161: if test "${enable_direct_threaded+set}" = "" \
162: -a "${enable_indirect_threaded+set}" = ""
163: then
1.34 anton 164: echo "Using direct threaded code on 386"
1.31 anton 165: AC_DEFINE(DIRECT_THREADED)
166: fi
167: ;;
168: i486)
1.34 anton 169: machine=386
1.31 anton 170: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
171: if test "${enable_direct_threaded+set}" = "" \
172: -a "${enable_indirect_threaded+set}" = ""
173: then
1.34 anton 174: echo "Using direct threaded code on 486"
1.31 anton 175: AC_DEFINE(DIRECT_THREADED)
176: fi
177: ;;
178: i586|i686)
1.34 anton 179: machine=386
1.31 anton 180: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
181: if test "${enable_direct_threaded+set}" = "" \
182: -a "${enable_indirect_threaded+set}" = ""
183: then
1.34 anton 184: echo "Using indirect threaded code on Pentium and up"
1.31 anton 185: AC_DEFINE(INDIRECT_THREADED)
186: fi
1.1 anton 187: ;;
1.26 pazsan 188: m68k)
1.34 anton 189: machine=m68k
1.32 pazsan 190: CFLAGS="$CFLAGS -fomit-frame-pointer"
191: if test "$host_os" = "nextstep3"
192: then
193: LIBOBJS="$LIBOBJS termios.o"
194: fi
1.26 pazsan 195: ;;
1.1 anton 196: mips*)
1.34 anton 197: machine=mips
1.7 anton 198: #link text and data segment into the same 256M region!
1.37 anton 199: AC_MSG_CHECKING([whether the linker accepts -D])
200: OLDLDFLAGS=$LDFLAGS
201: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
202: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
203: test $ac_link_mips_d = yes||LDFLAGS="$OLDLDFLAGS -Xlinker -T -Xlinker 10000000"
204: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 205: ;;
1.9 pazsan 206: alpha*)
1.34 anton 207: machine=alpha
1.9 pazsan 208: ;;
1.31 anton 209: power*)
1.34 anton 210: machine=power
1.36 anton 211: AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o")
1.31 anton 212: ;;
1.1 anton 213: *)
214: echo "No direct threading support for $host_cpu, using indirect threading."
1.20 anton 215: echo "Using a generic machine description."
1.1 anton 216: echo "I'll assume that C floats and doubles are represented by IEEE single and"
217: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 218: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34 anton 219: machine=generic
1.1 anton 220: esac
1.10 anton 221: AC_SUBST(host)
1.15 pazsan 222: AC_SUBST(ENGINE_FLAGS)
1.1 anton 223:
224: dnl Now a little support for DOS/DJGCC
1.30 pazsan 225: AC_SUBST(GFORTH_EXE)
226: GFORTH_EXE=""
227: AC_SUBST(GFORTHDITC_EXE)
228: GFORTHDITC_EXE=""
1.1 anton 229:
1.24 anton 230: PATHSEP=":"
231: AC_SUBST(PATHSEP)
232: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27 anton 233:
234: AC_SUBST(FORTHSIZES)
1.24 anton 235:
1.1 anton 236: dnl copy commands for systems that don't have links
1.29 pazsan 237: AC_SUBST(LINK_KERNL)
238: LINK_KERNL=""
1.1 anton 239:
240: #if test $host_os=dos
241: #then
242: # echo Configuring for DOS!!!
243: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 244: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 245: #fi
246:
247: dnl the following macro produces a warning with autoconf-2.1
248: AC_C_BIGENDIAN
1.23 pazsan 249: AC_SUBST(KERNEL)
1.1 anton 250: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
251: if test $ac_cv_c_bigendian = yes; then
252: bytesex=b
1.23 pazsan 253: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 254: else
255: bytesex=l
1.23 pazsan 256: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 257: fi
258:
259: dnl Checks for programs.
260: AC_PROG_LN_S
1.34 anton 261: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 262:
263: dnl Checks for library functions
1.2 anton 264: dnl This check is just for making later checks link with libm.
265: dnl using sin here is no good idea since it is built-into gcc and typechecked
266: AC_CHECK_LIB(m,asin)
1.31 anton 267: AC_CHECK_FUNCS(dlopen)
268: AC_CHECK_LIB(dl,dlopen)
269: AC_CHECK_LIB(kernel32,GetModuleHandle)
1.32 pazsan 270: if test "$host_os" != "nextstep3"
271: then
272: AC_FUNC_MEMCMP
273: fi
1.25 pazsan 274: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.17 anton 275: AC_CHECK_FUNCS(sys_siglist)
1.19 anton 276: AC_DECL_SYS_SIGLIST
1.34 anton 277: AC_CHECK_FUNC(getopt_long,true,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
1.11 anton 278: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 279: AC_REPLACE_FUNCS(ecvt)
280: dnl No check for select, because our replacement is no good under
281: dnl anything but DOS
1.28 anton 282: AC_CHECK_HEADERS(sys/mman.h)
283: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 284: AM_PATH_LISPDIR
1.1 anton 285:
1.23 pazsan 286: kernel_fi=kernl${wordsize}${bytesex}.fi
287: AC_SUBST(kernel_fi)
1.8 anton 288:
1.34 anton 289: AC_SUBST(machine)
290: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 291: AC_OUTPUT([
292: Makefile
1.35 anton 293: engine/Makefile
294: doc/version.texi ],echo timestamp > stamp-h)
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