diff --git a/glew-1.4.0-GL_FLOAT_MATXxX.patch b/glew-1.4.0-GL_FLOAT_MATXxX.patch
new file mode 100644
index 0000000..320d45f
--- /dev/null
+++ b/glew-1.4.0-GL_FLOAT_MATXxX.patch
@@ -0,0 +1,16 @@
+diff -up glew/include/GL/glew.h~ glew/include/GL/glew.h
+--- glew/include/GL/glew.h~	2008-01-12 21:02:24.000000000 +0100
++++ glew/include/GL/glew.h	2008-01-12 21:02:24.000000000 +0100
+@@ -2317,6 +2317,12 @@ typedef void (GLAPIENTRY * PFNGLVERTEXAT
+ #define GL_PIXEL_UNPACK_BUFFER 0x88EC
+ #define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED
+ #define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
++#define GL_FLOAT_MAT2x3 0x8B65
++#define GL_FLOAT_MAT2x4 0x8B66
++#define GL_FLOAT_MAT3x2 0x8B67
++#define GL_FLOAT_MAT3x4 0x8B68
++#define GL_FLOAT_MAT4x2 0x8B69
++#define GL_FLOAT_MAT4x3 0x8B6A
+ #define GL_SRGB 0x8C40
+ #define GL_SRGB8 0x8C41
+ #define GL_SRGB_ALPHA 0x8C42
diff --git a/glew.spec b/glew.spec
index 0a204f8..2c742c8 100644
--- a/glew.spec
+++ b/glew.spec
@@ -1,6 +1,6 @@
 Name:           glew
 Version:        1.4.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        The OpenGL Extension Wrangler Library
 Group:          System Environment/Libraries
 License:        BSD
@@ -21,6 +21,7 @@ Patch0:         glew-1.3.6-pathandstrip.patch
 Patch1:         glew-1.4.0-auto-make.patch
 Patch2:         glew-1.4.0-unused-direct-shlib-dependency.patch
 Patch3:         glew-1.4.0-license-doc.patch
+Patch4:         glew-1.4.0-GL_FLOAT_MATXxX.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  libGLU-devel
 
@@ -54,6 +55,10 @@ mkdir auto/registry
 touch auto/registry/.dummy auto/extensions/.dummy
 make -C auto ../include/GL/glew.h
 make -C auto ../include/GL/glxew.h
+# This is a patch to the autogenerated include/GL/glew.h file, so don't apply
+# before that file is generated. I have no clue why these defines do not get
+# properly added by the generation process, but they don't.
+%patch4 -p1
 
 
 %build
@@ -90,6 +95,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Sat Jan 12 2008 Hans de Goede <j.w.r.degoede@hhs.nl> 1.4.0-4
+- Add missing GL_FLOAT_MATXxX defines
+
 * Sat Aug 18 2007 Hans de Goede <j.w.r.degoede@hhs.nl> 1.4.0-3
 - Fix multiple unused direct shlib dependencies in libGLEW.so
 - Remove the "SGI Free Software License B" and "GLX Public License" tekst from