diff --git a/libtirpc-0.1.8-superH-support.patch b/libtirpc-0.1.8-superH-support.patch
new file mode 100644
index 0000000..b7330d5
--- /dev/null
+++ b/libtirpc-0.1.8-superH-support.patch
@@ -0,0 +1,23 @@
+commit 276e782ef9bb9b7c647edb91707c382e5a38c7c8
+Author: CHIKAMA Masaki <masaki.chikama@gmail.com>
+Date:   Fri Jun 27 14:08:55 2008 -0400
+
+    Added super-H(sh3,sh4) architecture support
+    
+    Signed-off-by: CHIKAMA Masaki <masaki.chikama@gmail.com>
+    Signed-off-by: Steve Dickson <steved@redhat.com>
+
+diff --git a/src/xdr_float.c b/src/xdr_float.c
+index d8b22e6..4693ef0 100644
+--- a/src/xdr_float.c
++++ b/src/xdr_float.c
+@@ -59,7 +59,8 @@
+     defined(__mips__) || defined(__ns32k__) || defined(__alpha__) || \
+     defined(__arm32__) || defined(__ppc__) || defined(__ia64__) || \
+     defined(__arm26__) || defined(__sparc64__) || defined(__amd64__) || \
+-    defined(__powerpc__) || defined(__s390__) || defined(__arm__)
++    defined(__powerpc__) || defined(__s390__) || defined(__arm__) || \
++    defined(__sh__)
+ #include <bits/endian.h>
+ #define IEEEFP
+ #endif
diff --git a/libtirpc.spec b/libtirpc.spec
index 0f624f9..e277ee3 100644
--- a/libtirpc.spec
+++ b/libtirpc.spec
@@ -1,6 +1,6 @@
 Name:		   libtirpc
 Version:		0.1.8
-Release:		1%{?dist}
+Release:		2%{?dist}
 Summary:		Transport Independent RPC Library
 Group:		  	System Environment/Libraries
 License:		GPL
@@ -32,6 +32,7 @@ Requires(devel):	pkgconfig man
 
 Patch1:	 libtirpc-0.1.7-svcauthnone.patch
 Patch2:	 libtirpc-0.1.7-svc-run.patch
+Patch3:	 libtirpc-0.1.8-superH-support.patch
 
 Patch100: libtirpc-0.1.7-compile.patch
 
@@ -44,6 +45,8 @@ developing programs which use the tirpc library.
 %setup -q
 %patch1	-p1
 %patch2	-p1
+# 446559: Add super-H(sh3,4) architecture support.
+%patch3	-p1
 
 %patch100	-p1
 
@@ -142,6 +145,9 @@ rm -rf %{buildroot}
 %{_mandir}/*/*
 
 %changelog
+* Fri Jun 27 2008 Steve Dickson  <steved@redhat.com> 0.1.8-2
+- Added super-H(sh3,4) architecture support (bz 446559)
+
 * Tue Jun 10 2008 Steve Dickson  <steved@redhat.com> 0.1.8-1
 - Update to latest upstream version 0.1.8