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?RCS: $Id: mallocsrc.U,v 3.0 1993/08/18 12:09:12 ram Exp $
?RCS:
?RCS: Copyright (c) 1991-1993, Raphael Manfredi
?RCS:
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 3.0.
?RCS:
?RCS: $Log: mallocsrc.U,v $
?RCS: Revision 3.0 1993/08/18 12:09:12 ram
?RCS: Baseline for dist 3.0 netwide release.
?RCS:
?MAKE:mallocsrc mallocobj usemymalloc malloctype d_mymalloc: Myread Oldconfig package \
Guess Setvar test rm cat +cc +ccflags Findhdr
?MAKE: -pick add $@ %<
?S:usemymalloc:
?S: This variable contains y if the malloc that comes with this package
?S: is desired over the system's version of malloc. People often include
?S: special versions of malloc for effiency, but such versions are often
?S: less portable. See also mallocsrc and mallocobj.
?S:.
?S:mallocsrc:
?S: This variable contains the name of the malloc.c that comes with
?S: the package, if that malloc.c is preferred over the system malloc.
?S: Otherwise the value is null. This variable is intended for generating
?S: Makefiles.
?S:.
?S:d_mymalloc:
?S: This variable conditionally defines MYMALLOC in case other parts
?S: of the source want to take special action if MYMALLOC is used.
?S: This may include different sorts of profiling or error detection.
?S:.
?S:mallocobj:
?S: This variable contains the name of the malloc.o that this package
?S: generates, if that malloc.o is preferred over the system malloc.
?S: Otherwise the value is null. This variable is intended for generating
?S: Makefiles. See mallocsrc.
?S:.
?S:malloctype:
?S: This variable contains the kind of ptr returned by malloc and realloc.
?S:.
?C:Malloc_t (MALLOCPTRTYPE):
?C: This symbol is the type of pointer returned by malloc and realloc.
?C:.
?H:#define Malloc_t $malloctype /**/
?H:.
?C:MYMALLOC:
?C: This symbol, if defined, indicates that we're using our own malloc.
?C:.
?H:#$d_mymalloc MYMALLOC /**/
?H:.
?X: Cannot test for mallocsrc; it is the unit's name and there is a bug in
?X: the interpreter which defines all the names, even though they are not used.
@if mallocobj
: determine which malloc to compile in
: Old versions had dflt='y' only for bsd or v7.
echo " "
case "$usemymalloc" in
'')
if bsd || v7; then
dflt='y'
else
dflt='y'
fi
;;
*) dflt="$usemymalloc"
;;
esac
rp="Do you wish to attempt to use the malloc that comes with $package?"
. ./myread
usemymalloc="$ans"
case "$ans" in
y*) mallocsrc='malloc.c'
mallocobj='malloc.o'
d_mymalloc="$define"
;;
*) mallocsrc=''
mallocobj=''
d_mymalloc="$undef"
;;
esac
@end
@if MALLOCPTRTYPE || Malloc_t
: compute the type returned by malloc
echo " "
case "$malloctype" in
'')
if $test `./findhdr malloc.h`; then
echo "#include <malloc.h>" > malloc.c
fi
#include <malloc.h>
$cat >>malloc.c <<'END'
void *malloc();
END
if $cc $ccflags -c malloc.c >/dev/null 2>&1; then
malloctype='void *'
else
malloctype='char *'
fi
$rm -f malloc.[co]
;;
esac
echo "Your system wants malloc to return '$malloctype', it would seem." >&4
@end
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