path: root/mcon/U/d_sysctl.U
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authorManoj Srivastava <>2014-04-27 18:05:39 -0700
committerManoj Srivastava <>2014-04-27 18:05:39 -0700
commit7d4c02d5c9108aa413fbb0ffa1dc8a39bc5f54a1 (patch)
tree2abb9ad01d397bc1e208f57f528c1ec529761392 /mcon/U/d_sysctl.U
parent5c913c35c09a82eead2c07534baa709a5dead3e7 (diff)
parent8f5e5726134ce5b4bd436b16f367796d851df553 (diff)
Merge branch 'upstream'
Signed-off-by: Manoj Srivastava <> Conflicts: jmake/
Diffstat (limited to 'mcon/U/d_sysctl.U')
1 files changed, 41 insertions, 0 deletions
diff --git a/mcon/U/d_sysctl.U b/mcon/U/d_sysctl.U
new file mode 100644
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+?RCS: $Id: d_sysctl.U 167 2013-05-08 17:58:00Z rmanfredi $
+?RCS: Copyright (c) 2006, Christian Biere
+?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.
+?MAKE:d_sysctl: Trylink cat
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines the HAS_SYSCTL symbol, which
+?S: indicates to the C program that the sysctl() routine is available.
+?C: This symbol, if defined, indicates that the sysctl routine is
+?C: available.
+?H:#$d_sysctl HAS_SYSCTL /**/
+?LINT:set d_sysctl
+: see if sysctl exists
+$cat >try.c <<EOC
+#include <sys/param.h>
+#include <sys/sysctl.h>
+int main(void)
+ static int ret, name;
+ static unsigned int namelen;
+ static void *oldp, *newp;
+ static size_t oldlen, newlen;
+ ret |= sysctl(&name, namelen, oldp, &oldlen, newp, newlen);
+ return ret ? 0 : 1;
+set d_sysctl
+eval $trylink