-dh_auto_build is a debhelper program that is responsible for the I<build> step
-of the L<dh_auto(7)> building process. Typically, this is the point when
-package sources are compiled into binaries or otherwise transformed into ready
-to use format. Files produced throughout this step are put to the build
-directory.
+B<dh_auto_build> is a debhelper program that tries to automatically build a
+package. It does so by running the appropriate command for the build system
+it detects the package uses. For example, if a F<Makefile> is found, this is
+done by running B<make> (or B<MAKE>, if the environment variable is set). If
+there's a F<setup.py>, or F<Build.PL>, it is run to build the package.