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Subject: Re: [gentoo-user] USE flag question (not total newbie)
From: Stroller <stroller@stellar.eclipse.co.uk>
In-Reply-To: <20161129012827.14326.2F5C2D91@matica.foolinux.mooo.com>
Date: Tue, 29 Nov 2016 01:55:14 +0000
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> On 29 Nov 2016, at 01:34, Ian Zimmerman <itz@primate.net> wrote:
>=20
> What does it mean when a USE flag name ends with '%' ?


=46rom `man emerge`:

    The following symbols are affixed to USE flags in order to
    indicate their status:
  =20
    Symbol   Location    Meaning
    =
=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=
=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=
=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=
=80
  =20
    -        prefix      not enabled (either disabled or removed)
    *        suffix      transition to or from the enabled state
    %        suffix      newly added or removed                      =20
    ()       circumfix   forced, masked, or removed                  =20
    {}       circumfix   state is bound to FEATURES settings  =20


> After my last --sync, emerge --qvp -u says (among a heap of other =
output):
>=20
> [ebuild   R   ] dev-db/sqlitebrowser-3.8.0  USE=3D"-qt5 {-test} =
(-qt4%*)"=20
>=20
> 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.

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.

Stroller.