Bugzilla Bug 68727

The use flag "java" should be split. For example, mozilla-firefox only requires
JRE (the ebuild has only):

RDEPEND="virtual/x11
         (...)
        java?  ( virtual/jre )

However, db (version 4.1.25_p1-r3, latest stable) has:

DEPEND="tcltk? ( dev-lang/tcl )
        java? ( virtual/jdk )"

RDEPEND="tcltk? ( dev-lang/tcl )
        java? ( virtual/jre )"

This means, that when I have emerged sun-jre for web browsing, and decide to
update world (with java flag set), portage wants to emerge a jdk as well
(blackdown-jdk). Therefore, I think that these java USE-flags should be split
depending on whether the ebuild utilizes JRE or JDK..

Desired result is that

I can set USE="java-jre"

emerge mozilla-firefox
...emerges a jre (whatever that may be, blackdown, sun, etc)

emerge db
...does NOT emerge a JDK. If it requires JDK for the java functionality, then
don't utilize java at all.

Well, the use flag is for java support
some need a jdk others a jre ..

if you only want one, isntall a jdk, it includes a jre

Well, I'll resort to per-package use-flags (/etc/portage/package.use) then
(+java for web browser, -java for everything that requires jdk).