case "`uname -v`" in

                  Gentoo*) SYSTYPE=LINUX2

                          if [ -f /usr/include/db.h ]

                          then

                              : we are all set

                          elif [ -f /usr/include/db4/db.h ]

                          then

                              CCARGS="$CCARGS -I/usr/include/db4"

                          else

                              # No, we're not going to try db1 db2 db3 etc.

                              # On a properly installed system, Postfix builds

                              # by including <db.h> and by linking with -ldb

                              echo "No <db.h> include file found." 1>&2

                              echo "Install the appropriate db*-devel package first." 1>&2

                              echo "See the RELEASE_NOTES file for more information." 1>&2

                              exit 1

                          fi

                          SYSLIBS="-ldb"

                          ;;

                  esac