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33a01fd2 | 1 | ?RCS: $Id$ |
d8875586 MBT |
2 | ?RCS: |
3 | ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi | |
cf39bd7e | 4 | ?RCS: |
33a01fd2 | 5 | ?RCS: You may redistribute only under the terms of the Artistic License, |
d8875586 MBT |
6 | ?RCS: as specified in the README file that comes with the distribution. |
7 | ?RCS: You may reuse parts of this distribution only within the terms of | |
33a01fd2 | 8 | ?RCS: that same Artistic License; a copy of which may be found at the root |
d8875586 MBT |
9 | ?RCS: of the source tree for dist 4.0. |
10 | ?RCS: | |
11 | ?RCS: $Log: d_keepsig.U,v $ | |
12 | ?RCS: Revision 3.0.1.4 1995/07/25 13:57:56 ram | |
13 | ?RCS: patch56: made cc and ccflags optional dependencies | |
14 | ?RCS: | |
15 | ?RCS: Revision 3.0.1.3 1995/01/11 15:26:25 ram | |
16 | ?RCS: patch45: protected "sh -c" within backquotes for Linux and SGI | |
17 | ?RCS: | |
18 | ?RCS: Revision 3.0.1.2 1994/10/29 16:13:59 ram | |
75e25e37 | 19 | ?RCS: patch36: call ./bsd explicitly instead of relying on PATH |
d8875586 MBT |
20 | ?RCS: |
21 | ?RCS: Revision 3.0.1.1 1993/10/16 13:48:47 ram | |
22 | ?RCS: patch12: comment for SIGNALS_KEPT was the other way round | |
23 | ?RCS: | |
24 | ?RCS: Revision 3.0 1993/08/18 12:06:26 ram | |
25 | ?RCS: Baseline for dist 3.0 netwide release. | |
26 | ?RCS: | |
27 | ?MAKE:d_keepsig: cat Compile rm Guess contains echo n c Setvar run | |
28 | ?MAKE: -pick add $@ %< | |
29 | ?S:d_keepsig: | |
30 | ?S: This variable contains the eventual value of the SIGNALS_KEPT symbol, | |
31 | ?S: which indicates to the C program if signal handlers need not reinstated | |
32 | ?S: after receipt of a signal. | |
33 | ?S:. | |
34 | ?C:SIGNALS_KEPT (PERSISTENT_SIGNAL): | |
35 | ?C: This symbol is defined if signal handlers needn't be reinstated after | |
36 | ?C: receipt of a signal. | |
37 | ?C:. | |
38 | ?H:#$d_keepsig SIGNALS_KEPT /**/ | |
39 | ?H:. | |
40 | ?F:!try !try.out | |
41 | ?LINT:set d_keepsig | |
42 | : see if signals are kept | |
43 | val="$undef"; | |
44 | echo " " | |
45 | echo "Checking to see if signal handlers stick around..." >&4 | |
46 | $cat >try.c <<'EOCP' | |
47 | foo() {} | |
48 | ||
49 | int main() | |
50 | { | |
51 | signal(2, foo); | |
52 | kill(getpid(), 2); | |
53 | kill(getpid(), 2); | |
54 | printf("abc\n"); | |
55 | } | |
56 | EOCP | |
57 | set try | |
58 | if eval $compile; then | |
59 | ?X: On AIX a single ./try will not work (with ksh) | |
60 | ?X: Backquotes required on Linux and SGI (prevents "ambiguous output redirect") | |
61 | ?X: (reported by Xavier LeVourch <xavierl@eiffel.com>) | |
62 | echo `sh -c $run ./try >try.out 2>/dev/null` >/dev/null | |
63 | if $contains abc try.out >/dev/null 2>&1; then | |
64 | echo "Yes, they do." | |
65 | val="$define"; | |
66 | else | |
67 | echo "No, they don't." | |
68 | fi | |
69 | else | |
70 | $echo $n "(I can't seem to compile the test program. Assuming $c" | |
71 | if ./bsd; then | |
72 | echo "they do.)" | |
73 | val="$define" | |
74 | else | |
75 | echo "they don't.)" | |
76 | fi | |
77 | fi | |
78 | set d_keepsig | |
79 | eval $setvar | |
80 | $rm -f try* | |
81 |