diff --git a/lib/libspl/Makefile.am b/lib/libspl/Makefile.am
index 93d1373f41..5e84930b32 100644
--- a/lib/libspl/Makefile.am
+++ b/lib/libspl/Makefile.am
@@ -19,6 +19,7 @@ libspl_la_SOURCES = \
 	${top_srcdir}/lib/libspl/strlcpy.c \
 	${top_srcdir}/lib/libspl/strnlen.c \
 	${top_srcdir}/lib/libspl/zone.c \
+	${top_srcdir}/lib/libspl/xdr.c \
 	${top_srcdir}/lib/libspl/asm-${target_cpu}/atomic.S \
 	${top_srcdir}/lib/libspl/include/sys/list.h \
 	${top_srcdir}/lib/libspl/include/sys/list_impl.h
diff --git a/lib/libspl/include/Makefile.am b/lib/libspl/include/Makefile.am
index 1acc8396d8..40179395f3 100644
--- a/lib/libspl/include/Makefile.am
+++ b/lib/libspl/include/Makefile.am
@@ -1,6 +1,7 @@
-noinst_HEADERS  = *.h
-noinst_HEADERS += ia32/sys/*.h
-noinst_HEADERS += sys/*.h
-noinst_HEADERS += sys/fm/*.h
-noinst_HEADERS += sys/sysevent/*.h
-noinst_HEADERS += tsol/*.h
+pkginclude_HEADERS  = *.h
+pkginclude_HEADERS += ia32/sys/*.h
+pkginclude_HEADERS += rpc/*.h
+pkginclude_HEADERS += sys/*.h
+pkginclude_HEADERS += sys/fm/*.h
+pkginclude_HEADERS += sys/sysevent/*.h
+pkginclude_HEADERS += tsol/*.h
diff --git a/lib/libspl/include/rpc/xdr.h b/lib/libspl/include/rpc/xdr.h
index dc982ebac9..cd6680f578 100644
--- a/lib/libspl/include/rpc/xdr.h
+++ b/lib/libspl/include/rpc/xdr.h
@@ -18,16 +18,13 @@
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
- */
-/*
+ *
  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
- */
-
-/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
-/*	  All Rights Reserved  	*/
-
-/*
+ *
+ *	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
+ *	  All Rights Reserved
+ *
  * Portions of this source code were derived from Berkeley 4.3 BSD
  * under license from the Regents of the University of California.
  */
@@ -37,26 +34,16 @@
 
 #include_next <rpc/xdr.h>
 
-/*
- * Strangely, my glibc version (2.3.6) doesn't have xdr_control(), so
- * we have to hack it in here (source taken from OpenSolaris).
- * By the way, it is assumed the xdrmem implementation is used.
- */
-
-#define xdr_control(a,b,c) xdrmem_control(a,b,c)
-
 /*
  * These are XDR control operators
  */
 
 #define	XDR_GET_BYTES_AVAIL 1
 
-struct xdr_bytesrec {
+typedef struct xdr_bytesrec {
 	bool_t xc_is_last_record;
 	size_t xc_num_avail;
-};
-
-typedef struct xdr_bytesrec xdr_bytesrec;
+} xdr_bytesrec_t;
 
 /*
  * These are the request arguments to XDR_CONTROL.
@@ -73,46 +60,6 @@ typedef struct xdr_bytesrec xdr_bytesrec;
 #define XDR_RDMAGET   4
 #define XDR_RDMASET   5
 
-/* FIXME: probably doesn't work */
-static bool_t
-xdrmem_control(XDR *xdrs, int request, void *info)
-{
-	xdr_bytesrec *xptr;
-	int32_t *int32p;
-	int len;
-
-	switch (request) {
-
-	case XDR_GET_BYTES_AVAIL:
-		xptr = (xdr_bytesrec *)info;
-		xptr->xc_is_last_record = TRUE;
-		xptr->xc_num_avail = xdrs->x_handy;
-		return (TRUE);
-
-	case XDR_PEEK:
-		/*
-		 * Return the next 4 byte unit in the XDR stream.
-		 */
-		if (xdrs->x_handy < sizeof (int32_t))
-			return (FALSE);
-		int32p = (int32_t *)info;
-		*int32p = (int32_t)ntohl((uint32_t)
-		    (*((int32_t *)(xdrs->x_private))));
-		return (TRUE);
-
-	case XDR_SKIPBYTES:
-		/*
-		 * Skip the next N bytes in the XDR stream.
-		 */
-		int32p = (int32_t *)info;
-		len = RNDUP((int)(*int32p));
-		if ((xdrs->x_handy -= len) < 0)
-			return (FALSE);
-		xdrs->x_private += len;
-		return (TRUE);
-
-	}
-	return (FALSE);
-}
+extern bool_t xdr_control(XDR *xdrs, int request, void *info);
 
 #endif
diff --git a/lib/libspl/xdr.c b/lib/libspl/xdr.c
new file mode 100644
index 0000000000..288a338a12
--- /dev/null
+++ b/lib/libspl/xdr.c
@@ -0,0 +1,78 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ *
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ *
+ *	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
+ *	  All Rights Reserved
+ *
+ * Portions of this source code were derived from Berkeley 4.3 BSD
+ * under license from the Regents of the University of California.
+ */
+
+#include <rpc/xdr.h>
+
+/*
+ * As of glibc-2.5-25 there is not support for xdr_control().  The
+ * xdrmem implementation from OpenSolaris is used here.
+ *
+ * FIXME: Not well tested it may not work as expected.
+ */
+bool_t
+xdr_control(XDR *xdrs, int request, void *info)
+{
+	xdr_bytesrec_t *xptr;
+	int32_t *int32p;
+	int len;
+
+	switch (request) {
+	case XDR_GET_BYTES_AVAIL:
+		xptr = (xdr_bytesrec_t *)info;
+		xptr->xc_is_last_record = TRUE;
+		xptr->xc_num_avail = xdrs->x_handy;
+		return (TRUE);
+
+	case XDR_PEEK:
+		/*
+		 * Return the next 4 byte unit in the XDR stream.
+		 */
+		if (xdrs->x_handy < sizeof (int32_t))
+			return (FALSE);
+		int32p = (int32_t *)info;
+		*int32p = (int32_t)ntohl((uint32_t)
+		    (*((int32_t *)(xdrs->x_private))));
+		return (TRUE);
+
+	case XDR_SKIPBYTES:
+		/*
+		 * Skip the next N bytes in the XDR stream.
+		 */
+		int32p = (int32_t *)info;
+		len = RNDUP((int)(*int32p));
+		if ((xdrs->x_handy -= len) < 0)
+			return (FALSE);
+		xdrs->x_private += len;
+		return (TRUE);
+
+	}
+	return (FALSE);
+}