diff -r 7121b6da363f build/lbuild
--- a/build/lbuild	Tue May 22 12:46:07 2012 +0100
+++ b/build/lbuild	Tue May 22 12:47:05 2012 +0100
@@ -531,6 +531,15 @@
         return 0
     fi
 
+    # If a full filename has been provided instead of just a version
+    # then use that.
+    if [ -n ${OFED_TARBALL} ]; then
+        if [ -f ${KERNELDIR}/${OFED_TARBALL} ]; then
+            return 0
+        fi
+        fatal 1 "${OFED_TARBALL} not found in ${KERNELDIR}"
+    fi
+
     local OFED_BASE_VERSION=$OFED_VERSION
     if [[ $OFED_VERSION = *.*.*.* ]]; then
         OFED_BASE_VERSION=${OFED_VERSION%.*}
@@ -692,10 +701,17 @@
 
 unpack_ofed() {
 
-    if ! untar "$KERNELDIR/OFED-${OFED_VERSION}.tgz"; then
-        return 1
+    if [ -n "${OFED_TARBALL}" ]; then
+        if ! untar "$KERNELDIR/${OFED_TARBALL}"; then
+            return 1
+        fi
+    else
+        if ! untar "$KERNELDIR/OFED-${OFED_VERSION}.tgz"; then
+            return 1
+        fi
     fi
     [ -d OFED ] || ln -sf OFED-[0-9].[0-9]* OFED
+    [ -d OFED ] || ln -sf *OFED_SRC-[0-9].[0-9]* OFED
 
 }