1 files changed, 4 insertions, 0 deletions

diff --git a/src/s/isc3-0.h b/src/s/isc3-0.h
index 1785096236c..c7527b659b8 100644
--- a/src/s/isc3-0.h
+++ b/src/s/isc3-0.h
@@ -29,3 +29,7 @@
 /* It is safe to have no parens around the args in the safe_bcopy call,
    and parens would screw up the prototype decl for memmove.  */
 #define memmove(d, s, n) safe_bcopy (s, d, n)
+
+/* This works around a bug in ISC 4.0 and 3.0; it fails
+   to clear the "POSIX process" flag on an exec.  */
+#define EXTRA_INITIALIZE __setostype (0)