summaryrefslogtreecommitdiff
path: root/mcon/U/d_lockf.U
diff options
context:
space:
mode:
Diffstat (limited to 'mcon/U/d_lockf.U')
-rw-r--r--mcon/U/d_lockf.U30
1 files changed, 24 insertions, 6 deletions
diff --git a/mcon/U/d_lockf.U b/mcon/U/d_lockf.U
index 2912006..5429d9c 100644
--- a/mcon/U/d_lockf.U
+++ b/mcon/U/d_lockf.U
@@ -1,11 +1,11 @@
-?RCS: $Id: d_lockf.U 1 2006-08-24 12:32:52Z rmanfredi $
+?RCS: $Id: d_lockf.U 167 2013-05-08 17:58:00Z rmanfredi $
?RCS:
?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
?RCS:
-?RCS: You may redistribute only under the terms of the Artistic Licence,
+?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 Licence; a copy of which may be found at the root
+?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:
?RCS: Original Author: Andy Dougherty <doughera@lafcol.lafayette.edu>
@@ -14,7 +14,7 @@
?RCS: Revision 3.0.1.1 1994/08/29 16:09:36 ram
?RCS: patch32: created by ADO
?RCS:
-?MAKE:d_lockf: Inlibc
+?MAKE:d_lockf: Trylink cat i_unistd
?MAKE: -pick add $@ %<
?S:d_lockf:
?S: This variable conditionally defines HAS_LOCKF if lockf() is
@@ -28,6 +28,24 @@
?H:.
?LINT:set d_lockf
: see if lockf exists
-set lockf d_lockf
-eval $inlibc
+$cat >try.c <<EOC
+#include <sys/types.h>
+#$i_unistd I_UNISTD
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+int main(void)
+{
+ static int fd, ret;
+ static off_t size;
+ ret |= lockf(fd, F_ULOCK, size);
+ ret |= lockf(fd, F_LOCK, size);
+ ret |= lockf(fd, F_TLOCK, size);
+ ret |= lockf(fd, F_TEST, size);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=lockf
+set d_lockf
+eval $trylink