blob: e4beb061099a4bd8bb7cd0833afe68f6150cd9bc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
?RCS: $Id: Largefile.U 167 2013-05-08 17:58:00Z rmanfredi $
?RCS:
?RCS: Copyright (c) 2006, Christian Biere
?RCS:
?RCS: You may redistribute only under the terms of the Artistic License,
?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 License; a copy of which may be found at the root
?RCS: of the source tree for dist 4.0.
?RCS:
?MAKE:Largefile: Trylink cat ccflags i_unistd
?MAKE: -pick add $@ %<
?T:flags result saved_ccflags
?W:%<:off_t
?LINT:change ccflags
: determine how to compile for large 64-bit file support
echo " "
echo "Checking whether we need flags for large file support..." >&4
flags='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64'
$cat >try.c <<EOC
#include <sys/types.h>
#$i_unistd I_UNISTD
#ifdef I_UNISTD
#include <unistd.h>
#endif
int main(void)
{
switch (0) { case 0: case (sizeof(off_t) >= 8): break; }
return 0;
}
EOC
result=''
set result
eval $trylink
case "$result" in
"$define")
echo "Selected C flags already provide 64-bit file support."
;;
"$undef")
echo "You're not natively compiling for large file, fixing..." >&4
saved_ccflags=$ccflags
ccflags="$flags $ccflags"
$cat >try.c <<EOC
#include <sys/types.h>
#$i_unistd I_UNISTD
#ifdef I_UNISTD
#include <unistd.h>
#endif
int main(void)
{
switch (0) { case 0: case (sizeof(off_t) >= 8): break; }
return 0;
}
EOC
result=''
set result
eval $trylink
case "$result" in
"$define")
echo "(Adding $flags)"
;;
"$undef")
echo "(Could not compile the test program, using 32-bit files)" >&4
ccflags=$saved_ccflags
;;
esac
;;
esac
|
