Annotation of gforth/configure.in, revision 1.46
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.41 anton 3: #Copyright (C) 1995,1996,1997,1998 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
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:
1.40 pazsan 88: AC_CHECK_SIZEOF(char)
1.23 pazsan 89: AC_CHECK_SIZEOF(short)
90: AC_CHECK_SIZEOF(int)
91: AC_CHECK_SIZEOF(long)
92: AC_CHECK_SIZEOF(long long)
93:
94: ac_cv_int_type_cell=none
95: case "$ac_cv_sizeof_char_p" in
1.40 pazsan 96: $ac_cv_sizeof_int)
97: ac_cv_int_type_cell=int
98: ;;
1.23 pazsan 99: $ac_cv_sizeof_short)
100: ac_cv_int_type_cell=short
101: ;;
1.40 pazsan 102: $ac_cv_sizeof_char)
103: ac_cv_int_type_cell=char
1.23 pazsan 104: ;;
105: $ac_cv_sizeof_long)
106: ac_cv_int_type_cell=long
107: ;;
108: $ac_cv_sizeof_long_long)
109: ac_cv_int_type_cell="long long"
110: ;;
111: esac
1.22 pazsan 112: if test "$ac_cv_int_type_cell" != int; then
1.20 anton 113: echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
114: echo "Since you don't have a proper C on this machine, that's one more reason"
115: echo "to use Forth;-)"
116: fi
1.23 pazsan 117: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
118:
119: ac_cv_int_type_double_cell=none
120: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
121: $ac_cv_sizeof_short)
122: ac_cv_int_type_double_cell=short
123: ;;
124: $ac_cv_sizeof_int)
125: ac_cv_int_type_double_cell=int
126: ;;
127: $ac_cv_sizeof_long)
128: ac_cv_int_type_double_cell=long
129: ;;
130: $ac_cv_sizeof_long_long)
131: ac_cv_int_type_double_cell="long long"
132: ;;
133: esac
1.21 anton 134: if test "$ac_cv_int_type_double_cell" = none; then
1.20 anton 135: echo "Emulating double-cell arithmetic. This may be slow."
136: echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23 pazsan 137: echo 'long longs for your machine (the GCC manual states that they \"are twice as'
138: echo "long as \`long int\'\")."
1.20 anton 139: LIBOBJS="$LIBOBJS dblsub.o"
140: AC_DEFINE(BUGGY_LONG_LONG)
1.23 pazsan 141: else
142: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20 anton 143: fi
144:
1.1 anton 145: #terminology is a bit unusual here: The host is the system on which
146: #gforth will run; the system on which configure will run is the `build'
147: AC_CANONICAL_HOST
148: case "$host_cpu" in
149: hppa*)
1.34 anton 150: machine=hppa
1.46 ! anton 151: $srcdir/mkinstalldirs arch/hppa
1.38 anton 152: LIBOBJS="$LIBOBJS ../arch/hppa/cache.o"
1.6 pazsan 153: LDFLAGS="-Xlinker -N"
154: LIBS="-L/lib/pa1.1/"
1.31 anton 155: if test "${enable_direct_threaded+set}" = ""
156: then
157: AC_DEFINE(DIRECT_THREADED)
158: fi
1.1 anton 159: ;;
160: sparc*)
1.34 anton 161: machine=sparc
1.1 anton 162: ;;
1.31 anton 163: i386)
1.34 anton 164: machine=386
1.16 anton 165: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 166: if test "${enable_direct_threaded+set}" = "" \
167: -a "${enable_indirect_threaded+set}" = ""
168: then
1.34 anton 169: echo "Using direct threaded code on 386"
1.31 anton 170: AC_DEFINE(DIRECT_THREADED)
171: fi
172: ;;
173: i486)
1.34 anton 174: machine=386
1.31 anton 175: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
176: if test "${enable_direct_threaded+set}" = "" \
177: -a "${enable_indirect_threaded+set}" = ""
178: then
1.34 anton 179: echo "Using direct threaded code on 486"
1.31 anton 180: AC_DEFINE(DIRECT_THREADED)
181: fi
182: ;;
183: i586|i686)
1.34 anton 184: machine=386
1.31 anton 185: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
186: if test "${enable_direct_threaded+set}" = "" \
187: -a "${enable_indirect_threaded+set}" = ""
188: then
1.34 anton 189: echo "Using indirect threaded code on Pentium and up"
1.31 anton 190: AC_DEFINE(INDIRECT_THREADED)
191: fi
1.1 anton 192: ;;
1.26 pazsan 193: m68k)
1.34 anton 194: machine=m68k
1.32 pazsan 195: CFLAGS="$CFLAGS -fomit-frame-pointer"
196: if test "$host_os" = "nextstep3"
197: then
198: LIBOBJS="$LIBOBJS termios.o"
199: fi
1.26 pazsan 200: ;;
1.1 anton 201: mips*)
1.34 anton 202: machine=mips
1.7 anton 203: #link text and data segment into the same 256M region!
1.37 anton 204: AC_MSG_CHECKING([whether the linker accepts -D])
205: OLDLDFLAGS=$LDFLAGS
206: LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
207: AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
208: test $ac_link_mips_d = yes||LDFLAGS="$OLDLDFLAGS -Xlinker -T -Xlinker 10000000"
209: AC_MSG_RESULT($ac_link_mips_d)
1.1 anton 210: ;;
1.9 pazsan 211: alpha*)
1.34 anton 212: machine=alpha
1.9 pazsan 213: ;;
1.31 anton 214: power*)
1.34 anton 215: machine=power
1.46 ! anton 216: $srcdir/mkinstalldirs arch/power
1.36 anton 217: AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o")
1.31 anton 218: ;;
1.1 anton 219: *)
220: echo "No direct threading support for $host_cpu, using indirect threading."
1.20 anton 221: echo "Using a generic machine description."
1.1 anton 222: echo "I'll assume that C floats and doubles are represented by IEEE single and"
223: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 224: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34 anton 225: machine=generic
1.1 anton 226: esac
1.10 anton 227: AC_SUBST(host)
1.15 pazsan 228: AC_SUBST(ENGINE_FLAGS)
1.1 anton 229:
1.39 pazsan 230: case "$host_os" in
231: *win32)
232: EXE=".exe"
233: ;;
234: *)
235: EXE=""
236: ;;
237: esac
238: AC_SUBST(EXE)
239:
1.1 anton 240: dnl Now a little support for DOS/DJGCC
1.30 pazsan 241: AC_SUBST(GFORTH_EXE)
242: GFORTH_EXE=""
243: AC_SUBST(GFORTHDITC_EXE)
244: GFORTHDITC_EXE=""
1.1 anton 245:
1.24 anton 246: PATHSEP=":"
247: AC_SUBST(PATHSEP)
248: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27 anton 249:
250: AC_SUBST(FORTHSIZES)
1.24 anton 251:
1.1 anton 252: dnl copy commands for systems that don't have links
1.29 pazsan 253: AC_SUBST(LINK_KERNL)
254: LINK_KERNL=""
1.1 anton 255:
256: #if test $host_os=dos
257: #then
258: # echo Configuring for DOS!!!
259: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 260: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 261: #fi
262:
263: dnl the following macro produces a warning with autoconf-2.1
264: AC_C_BIGENDIAN
1.23 pazsan 265: AC_SUBST(KERNEL)
1.1 anton 266: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
267: if test $ac_cv_c_bigendian = yes; then
268: bytesex=b
1.23 pazsan 269: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 270: else
271: bytesex=l
1.23 pazsan 272: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 273: fi
274:
275: dnl Checks for programs.
276: AC_PROG_LN_S
1.34 anton 277: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1 anton 278:
279: dnl Checks for library functions
1.2 anton 280: dnl This check is just for making later checks link with libm.
281: dnl using sin here is no good idea since it is built-into gcc and typechecked
282: AC_CHECK_LIB(m,asin)
1.31 anton 283: AC_CHECK_LIB(dl,dlopen)
1.32 pazsan 284: if test "$host_os" != "nextstep3"
285: then
286: AC_FUNC_MEMCMP
287: fi
1.25 pazsan 288: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.44 anton 289: AC_CHECK_FUNCS(dlopen sys_siglist)
1.19 anton 290: AC_DECL_SYS_SIGLIST
1.34 anton 291: AC_CHECK_FUNC(getopt_long,true,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
1.11 anton 292: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 293: AC_REPLACE_FUNCS(ecvt)
294: dnl No check for select, because our replacement is no good under
295: dnl anything but DOS
1.28 anton 296: AC_CHECK_HEADERS(sys/mman.h)
297: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 298: AM_PATH_LISPDIR
1.1 anton 299:
1.23 pazsan 300: kernel_fi=kernl${wordsize}${bytesex}.fi
301: AC_SUBST(kernel_fi)
1.8 anton 302:
1.34 anton 303: AC_SUBST(machine)
304: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31 anton 305: AC_OUTPUT([
306: Makefile
1.45 pazsan 307: Makedist
1.43 anton 308: gforthmi
1.35 anton 309: engine/Makefile
1.44 anton 310: doc/version.texi ],
311: echo timestamp > stamp-h
1.43 anton 312: chmod +x gforthmi
1.44 anton 313: test -d kernel||mkdir kernel)
314:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>