diff --git a/Numeric-24.2-fix-dlamc3.patch b/Numeric-24.2-fix-dlamc3.patch
new file mode 100644
index 0000000..331d0f1
--- /dev/null
+++ b/Numeric-24.2-fix-dlamc3.patch
@@ -0,0 +1,11 @@
+--- Numeric-24.2/Src/dlamch.c.fix-dlamc3	2006-10-29 22:30:52.000000000 -0500
++++ Numeric-24.2/Src/dlamch.c	2006-10-29 22:31:00.000000000 -0500
+@@ -672,7 +672,7 @@
+ */
+ /* >>Start of File<<   
+        System generated locals */
+-    doublereal ret_val;
++    volatile doublereal ret_val;
+ 
+ 
+ 
diff --git a/python-numeric.spec b/python-numeric.spec
index 270d2b8..bbbeba3 100644
--- a/python-numeric.spec
+++ b/python-numeric.spec
@@ -2,7 +2,7 @@
 
 Name: python-numeric
 Version: 24.2
-Release: 1
+Release: 2
 License: Python
 Group: Development/Languages
 Summary: Numerical Extension to Python
@@ -10,6 +10,10 @@ URL: http://numpy.sourceforge.net
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
 Source: Numeric-%{version}.tar.gz
 
+### Patches ###
+
+Patch1: Numeric-24.2-fix-dlamc3.patch
+
 ### Build Dependencies ###
 
 BuildRequires: python2-devel
@@ -20,6 +24,7 @@ operations.
 
 %prep
 %setup -q -n Numeric-%{version}
+%patch1 -p1 -b .fix-dlamc3
 
 %build
 env CFLAGS="$RPM_OPT_FLAGS" /usr/bin/python setup.py build
@@ -39,6 +44,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_includedir}/python*/Numeric/
 
 %changelog
+* Sun Oct 29 2006 Matthew Barnes <mbarnes@redhat.com> - 24.2-2
+- Add patch for RH bug #163646 (hang in eigenvalues).
+
 * Sun Oct 29 2006 Matthew Barnes <mbarnes@redhat.com> - 24.2-1
 - Update to 24.2