Annotation of gforth/configure.in, revision 1.32
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)
22: AC_CONFIG_HEADER(engine/config.h)
1.14 anton 23:
1.1 anton 24: AC_ARG_ENABLE(force-reg,
25: [ --enable-force-reg Use explicit register declarations if they appear in
26: the machine.h file. This can cause a good speedup,
27: but also incorrect code with some gcc versions on
28: some processors (default disabled).],
29:
30: AC_DEFINE(FORCE_REG))
31: dnl this is not quite according to the autoconf manual, it causes a replacement
32: AC_ARG_ENABLE(direct-threaded,
33: [ --enable-direct-threaded Force direct threading. This may not work on
34: some machines and may cause slowdown on others.
35: (default processor-dependent)],
36: AC_DEFINE(DIRECT_THREADED))
37: AC_ARG_ENABLE(indirect-threaded,
38: [ --enable-indirect-threaded Force indirect threading. This can cause a
39: slowdown on some machines.
40: (default processor-dependent)],
41: AC_DEFINE(INDIRECT_THREADED))
42:
1.9 pazsan 43: AC_ARG_WITH(debug,
1.10 anton 44: [ --with-debug specifies option -g to compile with debug info (default)
1.27 anton 45: --without-debug omits the -g switch and creates smaller images on
46: machines where "strip" has problems with gcc style
47: debugging informations.],
1.9 pazsan 48: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
49:
1.16 anton 50: CFLAGS=$CFLAGS
51:
1.15 pazsan 52: AC_PROG_CC
53:
54: if test "$GCC" = "yes"
55: then
56: echo "Fine, gcc is available"
57: else
58: cat <<'EOF'
1.16 anton 59: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
60: It does not work with other C compilers. Please install the GNU C compiler,
61: and try again (or search for a binary distribution for your platform).
1.15 pazsan 62: EOF
63: exit 1
64: fi
1.9 pazsan 65:
1.15 pazsan 66: AC_SUBST(CC)
1.7 anton 67: AC_SUBST(GCCLDFLAGS)
1.9 pazsan 68: AC_SUBST(DEBUGFLAG)
1.7 anton 69:
1.10 anton 70: dnl the following macro produces a warning with autoconf-2.1
71: AC_CHECK_SIZEOF(char *)
72: case "$ac_cv_sizeof_char_p" in
73: 2)
74: wordsize=16
75: ;;
76: 4)
77: wordsize=32
78: ;;
79: 8)
80: wordsize=64
81: ;;
82: esac
1.9 pazsan 83:
1.23 pazsan 84: AC_CHECK_SIZEOF(short)
85: AC_CHECK_SIZEOF(int)
86: AC_CHECK_SIZEOF(long)
87: AC_CHECK_SIZEOF(long long)
88:
89: ac_cv_int_type_cell=none
90: case "$ac_cv_sizeof_char_p" in
91: $ac_cv_sizeof_short)
92: ac_cv_int_type_cell=short
93: ;;
94: $ac_cv_sizeof_int)
95: ac_cv_int_type_cell=int
96: ;;
97: $ac_cv_sizeof_long)
98: ac_cv_int_type_cell=long
99: ;;
100: $ac_cv_sizeof_long_long)
101: ac_cv_int_type_cell="long long"
102: ;;
103: esac
1.22 pazsan 104: if test "$ac_cv_int_type_cell" != int; then
1.20 anton 105: echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
106: echo "Since you don't have a proper C on this machine, that's one more reason"
107: echo "to use Forth;-)"
108: fi
1.23 pazsan 109: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
110:
111: ac_cv_int_type_double_cell=none
112: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
113: $ac_cv_sizeof_short)
114: ac_cv_int_type_double_cell=short
115: ;;
116: $ac_cv_sizeof_int)
117: ac_cv_int_type_double_cell=int
118: ;;
119: $ac_cv_sizeof_long)
120: ac_cv_int_type_double_cell=long
121: ;;
122: $ac_cv_sizeof_long_long)
123: ac_cv_int_type_double_cell="long long"
124: ;;
125: esac
1.21 anton 126: if test "$ac_cv_int_type_double_cell" = none; then
1.20 anton 127: echo "Emulating double-cell arithmetic. This may be slow."
128: echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23 pazsan 129: echo 'long longs for your machine (the GCC manual states that they \"are twice as'
130: echo "long as \`long int\'\")."
1.20 anton 131: LIBOBJS="$LIBOBJS dblsub.o"
132: AC_DEFINE(BUGGY_LONG_LONG)
1.23 pazsan 133: else
134: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20 anton 135: fi
136:
1.1 anton 137: #terminology is a bit unusual here: The host is the system on which
138: #gforth will run; the system on which configure will run is the `build'
139: AC_CANONICAL_HOST
140: case "$host_cpu" in
141: hppa*)
142: mach_h=hppa
1.23 pazsan 143: LIBOBJS="cache.o"
1.6 pazsan 144: LDFLAGS="-Xlinker -N"
145: LIBS="-L/lib/pa1.1/"
1.31 anton 146: if test "${enable_direct_threaded+set}" = ""
147: then
148: AC_DEFINE(DIRECT_THREADED)
149: fi
1.1 anton 150: ;;
151: sparc*)
152: mach_h=sparc
153: ;;
1.31 anton 154: i386)
1.1 anton 155: mach_h=386
1.16 anton 156: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 157: if test "${enable_direct_threaded+set}" = "" \
158: -a "${enable_indirect_threaded+set}" = ""
159: then
160: echo "Using direct threaded on 386er"
161: AC_DEFINE(DIRECT_THREADED)
162: fi
163: ;;
164: i486)
165: mach_h=386
166: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
167: if test "${enable_direct_threaded+set}" = "" \
168: -a "${enable_indirect_threaded+set}" = ""
169: then
170: echo "Using direct threaded on 486er"
171: AC_DEFINE(DIRECT_THREADED)
172: fi
173: ;;
174: i586|i686)
175: mach_h=386
176: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
177: if test "${enable_direct_threaded+set}" = "" \
178: -a "${enable_indirect_threaded+set}" = ""
179: then
180: echo "Using indirect threaded on Pentium and up"
181: AC_DEFINE(INDIRECT_THREADED)
182: fi
1.1 anton 183: ;;
1.26 pazsan 184: m68k)
185: mach_h=m68k
1.32 ! pazsan 186: CFLAGS="$CFLAGS -fomit-frame-pointer"
! 187: if test "$host_os" = "nextstep3"
! 188: then
! 189: LIBOBJS="$LIBOBJS termios.o"
! 190: fi
1.26 pazsan 191: ;;
1.1 anton 192: mips*)
193: mach_h=mips
1.7 anton 194: #link text and data segment into the same 256M region!
195: GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
1.1 anton 196: ;;
1.9 pazsan 197: alpha*)
198: mach_h=alpha
199: ;;
1.31 anton 200: power*)
201: mach_h=power
202: ;;
1.1 anton 203: *)
204: echo "No direct threading support for $host_cpu, using indirect threading."
1.20 anton 205: echo "Using a generic machine description."
1.1 anton 206: echo "I'll assume that C floats and doubles are represented by IEEE single and"
207: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16 anton 208: echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.1 anton 209: mach_h=32bit
210: esac
1.10 anton 211: AC_SUBST(host)
1.15 pazsan 212: AC_SUBST(ENGINE_FLAGS)
1.1 anton 213:
214: dnl Now a little support for DOS/DJGCC
1.30 pazsan 215: AC_SUBST(GFORTH_EXE)
216: GFORTH_EXE=""
217: AC_SUBST(GFORTHDITC_EXE)
218: GFORTHDITC_EXE=""
1.1 anton 219:
1.24 anton 220: PATHSEP=":"
221: AC_SUBST(PATHSEP)
222: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27 anton 223:
224: AC_SUBST(FORTHSIZES)
1.24 anton 225:
1.1 anton 226: dnl copy commands for systems that don't have links
1.29 pazsan 227: AC_SUBST(LINK_KERNL)
228: LINK_KERNL=""
1.1 anton 229:
230: #if test $host_os=dos
231: #then
232: # echo Configuring for DOS!!!
233: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 234: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 235: #fi
236:
237: dnl the following macro produces a warning with autoconf-2.1
238: AC_C_BIGENDIAN
1.23 pazsan 239: AC_SUBST(KERNEL)
1.1 anton 240: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
241: if test $ac_cv_c_bigendian = yes; then
242: bytesex=b
1.23 pazsan 243: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 244: else
245: bytesex=l
1.23 pazsan 246: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 247: fi
248:
249: dnl Checks for programs.
250: AC_PROG_LN_S
251: AC_PROG_INSTALL
252:
253: dnl Checks for library functions
1.2 anton 254: dnl This check is just for making later checks link with libm.
255: dnl using sin here is no good idea since it is built-into gcc and typechecked
256: AC_CHECK_LIB(m,asin)
1.31 anton 257: AC_CHECK_FUNCS(dlopen)
258: AC_CHECK_LIB(dl,dlopen)
259: AC_CHECK_LIB(kernel32,GetModuleHandle)
1.32 ! pazsan 260: if test "$host_os" != "nextstep3"
! 261: then
! 262: AC_FUNC_MEMCMP
! 263: fi
1.25 pazsan 264: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.17 anton 265: AC_CHECK_FUNCS(sys_siglist)
1.19 anton 266: AC_DECL_SYS_SIGLIST
1.8 anton 267: AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o")
1.1 anton 268: AC_SUBST(getopt_long)
1.11 anton 269: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 270: AC_REPLACE_FUNCS(ecvt)
271: dnl No check for select, because our replacement is no good under
272: dnl anything but DOS
1.28 anton 273: AC_CHECK_HEADERS(sys/mman.h)
274: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.1 anton 275:
1.23 pazsan 276: kernel_fi=kernl${wordsize}${bytesex}.fi
277: AC_SUBST(kernel_fi)
1.8 anton 278:
1.31 anton 279: AC_LINK_FILES(arch/${mach_h} $kernel_fi,machine kernel.fi)
280: AC_OUTPUT([
281: Makefile
282: engine/Makefile ],echo timestamp > stamp-h)
1.1 anton 283:
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