-To install Mesa's headers and libraries, run <code>make install</code>
-You'll be prompted to enter alternative directories for the headers
-and libraries.
+To install Mesa's headers and libraries, run <code>make install</code>.
+But first, check the Mesa/configs/default file and examine the values
+of the <b>INSTALL_DIR</b> and <b>DRI_DRIVER_INSTALL_DIR</b> variables.
+Change them if needed, then run <code>make install</code>