| dnl Process this file with autoconf to produce a configure script. |
dnl Process this file with autoconf to produce a configure script. |
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|
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#Copyright (C) 1995,1996 Free Software Foundation, Inc. |
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|
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#This file is part of Gforth. |
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|
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#Gforth is free software; you can redistribute it and/or |
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#modify it under the terms of the GNU General Public License |
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#as published by the Free Software Foundation; either version 2 |
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#of the License, or (at your option) any later version. |
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|
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#This program is distributed in the hope that it will be useful, |
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#but WITHOUT ANY WARRANTY; without even the implied warranty of |
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the |
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#GNU General Public License for more details. |
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|
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#You should have received a copy of the GNU General Public License |
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#along with this program; if not, write to the Free Software |
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#Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
| AC_INIT(engine.c) |
AC_INIT(engine.c) |
| AC_CONFIG_HEADER(config.h) |
AC_CONFIG_HEADER(config.h) |
| |
|
| ;; |
;; |
| 8) |
8) |
| wordsize=64 |
wordsize=64 |
| dnl AC_CHECK_SIZEOF(long long) |
|
| dnl if [ $ac_cv_sizeof_long_long != 16 ] |
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| dnl then |
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| dnl try the whole thing with -mlonglong128 |
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| dnl complain about C compiler and OS vendor |
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| dnl fi |
|
| ;; |
;; |
| esac |
esac |
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|
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AC_CHECK_INT_TYPE(sizeof(char *),cell,long) |
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if test $ac_cv_int_type_cell != int; then |
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echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me." |
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echo "Since you don't have a proper C on this machine, that's one more reason" |
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echo "to use Forth;-)" |
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fi |
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AC_CHECK_INT_TYPE(2*sizeof(char *),double cell,long long) |
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if test $ac_cv_int_type_double_cell = none; then |
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echo "Emulating double-cell arithmetic. This may be slow." |
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echo "If you find this unacceptable, ask the GCC maintainers to provide proper" |
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echo 'long longs for your machine (the GCC manual states that they \"are twice as' |
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echo "long as \`long int\'\")." |
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LIBOBJS="$LIBOBJS dblsub.o" |
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AC_DEFINE(BUGGY_LONG_LONG) |
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fi |
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|
| #terminology is a bit unusual here: The host is the system on which |
#terminology is a bit unusual here: The host is the system on which |
| #gforth will run; the system on which configure will run is the `build' |
#gforth will run; the system on which configure will run is the `build' |
| AC_CANONICAL_HOST |
AC_CANONICAL_HOST |
| ;; |
;; |
| alpha*) |
alpha*) |
| mach_h=alpha |
mach_h=alpha |
| echo Very Preliminary Support for Alpha!!! |
|
| ;; |
;; |
| *) |
*) |
| echo "No direct threading support for $host_cpu, using indirect threading." |
echo "No direct threading support for $host_cpu, using indirect threading." |
| echo "Using a generic machine description. It will only work if char * AND" |
echo "Using a generic machine description." |
| echo "long values have the same size and long long is twice as long." |
|
| echo "I'll assume that C floats and doubles are represented by IEEE single and" |
echo "I'll assume that C floats and doubles are represented by IEEE single and" |
| echo "double numbers. If this is not so, SF@ etc. will not work correctly." |
echo "double numbers. If this is not so, SF@ etc. will not work correctly." |
| echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!" |
echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!" |
