[gentoo-user] Re: USE flag question (not total newbie)

[Ian Zimmerman <itz@primate.net>]

On 2016-11-29 01:55, Stroller wrote:

> > [ebuild   R   ] dev-db/sqlitebrowser-3.8.0  USE="-qt5 {-test} (-qt4%*)" 
> > 
> > Does this mean the package will be rebuilt without any qt support at
> > all?  Why?
> 
> No, I believe it means that the _option_ to enable or disable qt4 has
> been removed.

Well - notice the 'R'.  So the package (or at least the version, see
below) has not been changed since last time.

> It could be that the package is always compiled with qt4, or that it's
> always disabled, or that `make` detects it automatically.  The best
> things to look at are the ebuild and the changelog.

There is no changelog for this package :-(

In the ebuild, the only occurrence of the string "qt4" is:

src_prepare() {
        # https://github.com/qingfengxia/qhexedit still bundled
        # x11-libs/qscintilla[qt4?,qt5?] still bundled
        #                     ^^^^
        find libs/{antlr-2.7.7,qcustomplot-source} -delete || die
        cmake-utils_src_prepare
}

I don't think this is responsible for the emerge output.

Is it possible for the ebuild to change (in particular, for USE flags to
be removed) without a change in version number?

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