Commit | Line | Data |
---|---|---|
863963f1 JH |
1 | ?RCS: $Id$ |
2 | ?RCS: | |
3 | ?RCS: Copyright (c) 2000 Jarkko Hietaniemi | |
4 | ?RCS: | |
5 | ?RCS: You may distribute under the terms of either the GNU General Public | |
6 | ?RCS: License or the Artistic License, as specified in the README file. | |
7 | ?RCS: | |
db0821ec | 8 | ?MAKE:d_isinf: Inlibc cat i_math Compile rm_try Setvar |
863963f1 JH |
9 | ?MAKE: -pick add $@ %< |
10 | ?S:d_isinf: | |
11 | ?S: This variable conditionally defines the HAS_ISINF symbol, which | |
12 | ?S: indicates to the C program that the isinf() routine is available. | |
13 | ?S:. | |
14 | ?C:HAS_ISINF: | |
15 | ?C: This symbol, if defined, indicates that the isinf routine is | |
16 | ?C: available to check whether a double is an infinity. | |
17 | ?C:. | |
18 | ?H:#$d_isinf HAS_ISINF /**/ | |
19 | ?H:. | |
20 | ?LINT:set d_isinf | |
db0821ec MBT |
21 | : check for isinf |
22 | echo "Checking to see if you have isinf..." >&4 | |
23 | $cat >try.c <<EOCP | |
24 | #$i_math I_MATH | |
25 | #ifdef I_MATH | |
26 | #include <math.h> | |
27 | #endif | |
28 | int main() { return isinf(0.0); } | |
29 | EOCP | |
30 | set try | |
31 | if eval $compile; then | |
32 | val="$define" | |
33 | echo "You have isinf." | |
34 | else | |
35 | val="$undef" | |
36 | echo "You do not have isinf." | |
37 | fi | |
38 | $rm_try | |
39 | set d_isinf | |
40 | eval $setvar | |
863963f1 | 41 |