Index: lib/pipeline.c
===================================================================
--- lib/pipeline.c.orig
+++ lib/pipeline.c
@@ -54,6 +54,20 @@
 #  include "zio.h"
 #endif /* HAVE_ZIO */
 
+#ifdef __linux__
+#   include <sys/socket.h>
+#   include <netdb.h>
+#   include <netinet/in.h>
+#   ifndef SHUT_RD
+#	define SHUT_RD		0
+#   endif
+#   ifndef SHUT_WR
+#	define SHUT_WR		1
+#   endif
+#   define pipe(v) (((socketpair(AF_UNIX,SOCK_STREAM,0,v) < 0) || \
+		    (shutdown((v)[1],SHUT_RD) < 0) || (shutdown((v)[0],SHUT_WR) < 0)) ? -1 : 0)
+#endif
+
 /* ---------------------------------------------------------------------- */
 
 /* Functions to build individual commands. */