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1 | ?RCS: $Id: d_getpgrp.U,v 3.0.1.1 1997/02/28 15:34:28 ram Exp $ |
2 | ?RCS: | |
3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi | |
4 | ?RCS: | |
5 | ?RCS: You may redistribute only under the terms of the Artistic Licence, | |
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 | |
8 | ?RCS: that same Artistic Licence; a copy of which may be found at the root | |
9 | ?RCS: of the source tree for dist 3.0. | |
10 | ?RCS: | |
11 | ?RCS: $Log: d_getpgrp.U,v $ | |
12 | ?RCS: Revision 3.0.1.1 1997/02/28 15:34:28 ram | |
13 | ?RCS: patch61: new USE_BSD_GETPGRP to detect the getpgrp() flavour | |
14 | ?RCS: | |
15 | ?RCS: Revision 3.0 1993/08/18 12:06:15 ram | |
16 | ?RCS: Baseline for dist 3.0 netwide release. | |
17 | ?RCS: | |
18 | ?MAKE:d_getpgrp d_bsdgetpgrp: Guess Inlibc Setvar cat rm \ | |
19 | +cc +ccflags +ldflags +libs i_unistd | |
20 | ?MAKE: -pick add $@ %< | |
21 | ?S:d_getpgrp: | |
22 | ?S: This variable conditionally defines HAS_GETPGRP if getpgrp() is | |
23 | ?S: available to get the current process group. | |
24 | ?S:. | |
25 | ?S:d_bsdgetpgrp: | |
26 | ?S: This variable conditionally defines USE_BSD_GETPGRP if | |
27 | ?S: getpgrp needs one arguments whereas USG one needs none. | |
28 | ?S:. | |
29 | ?C:HAS_GETPGRP (GETPGRP): | |
30 | ?C: This symbol, if defined, indicates that the getpgrp routine is | |
31 | ?C: available to get the current process group. | |
32 | ?C:. | |
33 | ?C:USE_BSD_GETPGRP: | |
34 | ?C: This symbol, if defined, indicates that getpgrp needs one | |
35 | ?C: arguments whereas USG one needs none. | |
36 | ?C:. | |
37 | ?H:#$d_getpgrp HAS_GETPGRP /**/ | |
38 | ?H:#$d_bsdgetpgrp USE_BSD_GETPGRP /**/ | |
39 | ?H:. | |
40 | ?T:xxx | |
41 | ?LINT:set d_getpgrp d_bsdgetpgrp | |
42 | : see if getpgrp exists | |
43 | set getpgrp d_getpgrp | |
44 | eval $inlibc | |
45 | ||
46 | @if USE_BSD_GETPGRP || d_bsdgetpgrp | |
47 | case "$d_getpgrp" in | |
48 | "$define") | |
49 | echo " " | |
50 | echo "Checking to see which flavor of getpgrp is in use..." | |
51 | $cat >set.c <<EOP | |
52 | #$i_unistd I_UNISTD | |
53 | #include <sys/types.h> | |
54 | #ifdef I_UNISTD | |
55 | # include <unistd.h> | |
56 | #endif | |
57 | int main() | |
58 | { | |
59 | if (getuid() == 0) { | |
60 | printf("(I see you are running Configure as super-user...)\n"); | |
61 | setuid(1); | |
62 | } | |
63 | #ifdef TRY_BSD_PGRP | |
64 | if (getpgrp(1) == 0) | |
65 | exit(0); | |
66 | #else | |
67 | if (getpgrp() > 0) | |
68 | exit(0); | |
69 | #endif | |
70 | exit(1); | |
71 | } | |
72 | EOP | |
73 | if $cc -o set -DTRY_BSD_PGRP $ccflags $ldflags set.c $libs >/dev/null 2>&1 && ./set; then | |
74 | echo "You have to use getpgrp(pid) instead of getpgrp()." >&4 | |
75 | val="$define" | |
76 | elif $cc -o set $ccflags $ldflags set.c $libs >/dev/null 2>&1 && ./set; then | |
77 | echo "You have to use getpgrp() instead of getpgrp(pid)." >&4 | |
78 | val="$undef" | |
79 | else | |
80 | echo "I can't seem to compile and run the test program." | |
81 | if ./usg; then | |
82 | xxx="a USG one, i.e. you use getpgrp()." | |
83 | else | |
84 | # SVR4 systems can appear rather BSD-ish. | |
85 | case "$i_unistd" in | |
86 | $undef) | |
87 | xxx="a BSD one, i.e. you use getpgrp(pid)." | |
88 | val="$define" | |
89 | ;; | |
90 | $define) | |
91 | xxx="probably a USG one, i.e. you use getpgrp()." | |
92 | val="$undef" | |
93 | ;; | |
94 | esac | |
95 | fi | |
96 | echo "Assuming your getpgrp is $xxx" >&4 | |
97 | fi | |
98 | ;; | |
99 | *) val="$undef";; | |
100 | esac | |
101 | set d_bsdgetpgrp | |
102 | eval $setvar | |
103 | $rm -f set set.c | |
104 | @end | |
105 |