+the PREFIX variable specified in the Makefile -- e.g., you can use
+"make PREFIX=/opt/pciutils install" to create a separate installation
+not interfering with the rest of your system. Setting the DESTDIR variable
+will allow you to install to a different directory from the one you intend
+to eventually run it from. This is useful for people who are packaging
+pciutils to install on other computers.
+
+There are several options which can be set in the Makefile or overridden
+when running make:
+
+ ZLIB=yes/no Enable support for compressed pci.ids (requires zlib).
+ If it is enabled, pciutils will use pci.ids.gz in preference to
+ pci.ids, even if the pci.ids file is newer. If the pci.ids.gz
+ file is missing, it will use pci.ids instead. If you do not
+ specify this option, the configure script will try to guess
+ automatically based on the presence of zlib.
+
+ DNS=yes/no Enable support for querying the central database of PCI IDs
+ using DNS. Requires libresolv (which is available on most
+ systems as a part of the standard libraries) and tries to
+ autodetect its presence if the option is not specified.
+
+ SHARED=yes/ Build libpci as a shared library. Requires GCC 4.0 or newer.
+ no/local The ABI of the shared library is intended to remain backward
+ compatible for a long time (we use symbol versioning to achieve
+ that, like GNU libc does). The value `local' includes the
+ right directory name in the binaries, so the utilities can be
+ run without installation. This is not recommended for any
+ production builds.
+
+"make install-lib" installs the library together with its header files
+for use by other programs.