BUG: Corrected FFTW_ARCH_PATH - patch contributed by Bruno Santos. Fixes #210

etc/config.sh/FFTW

@@ -64,7 +64,7 @@ then
     # it is either located within ThirdParty, or a central installation
     # outside of ThirdParty and must be added to the lib-path.
 
-    ending="${FFTW_ARCH_PATH_PATH##*-}"
+    ending="${FFTW_ARCH_PATH##*-}"
     if [ "$ending" != none -a "$ending" != system ]
     then
         _foamAddLib $FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH