multi-dir path handling

etc/settings.csh

@@ -82,7 +82,6 @@ switch ("$WM_COMPILER_INST")
 case OpenFOAM:
     switch ("$WM_COMPILER")
     case Gcc:
-        #setenv WM_COMPILER_DIR $WM_THIRD_PARTY_DIR/gcc-4.3.1/platforms/$WM_ARCH$WM_COMPILER_ARCH
         setenv WM_COMPILER_DIR $WM_THIRD_PARTY_DIR/gcc-4.3.2/platforms/$WM_ARCH$WM_COMPILER_ARCH
         _foamAddLib $WM_THIRD_PARTY_DIR/mpfr-2.3.2/platforms/$WM_ARCH$WM_COMPILER_ARCH/lib
         _foamAddLib $WM_THIRD_PARTY_DIR/gmp-4.2.3/platforms/$WM_ARCH$WM_COMPILER_ARCH/lib