-last resort try "make maintainer-clean" before bootstrapping again.
-If CPU time is not an issue, the most thorough way to rebuild, and
-avoid any spurious problems, is always to use "make maintainer-clean;
-make bootstrap".
+last resort try "make maintainer-clean" before configuring and
+bootstrapping again. If CPU time is not an issue, the most thorough
+way to rebuild, and avoid any spurious problems, is always to use this
+method.