Bugzilla Bug 200385

Hello,

I just came to a problem using /etc/portage/package.use

Because of some qt apps I have set this line within the file:
>=x11-libs/qt-4                 qt3support

Now I am playing with KDE 4 and kdebase svn version needs qt compiled with
'accessibility' flag enabled, so, naturally I have added a line:
x11-libs/qt                     accessibility

However, this did not work, the 'accessibility' flag was not applied, I had to
merge these two lines. From my POV, I consider this to be an error, IMO the
flags should be merged, and in case of any collisions the last occurence of any
particular flag matching the package & version in question, either setting or
unsetting the flag, should be valid.

My use case for having the flags split is to have a better overview of them -
for each flag I have a comment which package requires this flag to be
set/unset, so after kdebase stops to need 'accessibility' I would simply remove
the comment and the following line.

But based on my experience of actual behaviour described above, I can imagine
an example when you want to have some USE flags set for qt3, some for qt4 and
some common - but if you would have qt4 rule and the qt rule, the common qt
rule would not get applied. (Setting the common flags within make.conf is not
an option, e.g. for 'debug', usually you do not want to have it globally
enabled ...)

Reproducible: Always

Steps to Reproduce:
1. put into /etc/portage/package.use these:
>=x11-libs/qt-4                 qt3support
x11-libs/qt                     accessibility
2. make sure you do not have 'accessibility' enabled within the global scope
3. emerge -pv qt

Actual Results:  
These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] x11-libs/qt-4.3.2  USE="cups dbus gif jpeg opengl png
qt3support ssl tiff zlib -accessibility* -debug -doc -examples -firebird -glib
-mng -mysql -nas -nis -odbc -pch -postgres -sqlite -sqlite3 -xinerama"
INPUT_DEVICES="-wacom" 0 kB

Total: 1 package (1 reinstall), Size of downloads: 0 kB


Expected Results:  
These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] x11-libs/qt-4.3.2  USE="accessibility cups dbus gif jpeg opengl
png qt3support ssl tiff zlib -debug -doc -examples -firebird -glib -mng -mysql
-nas -nis -odbc -pch -postgres -sqlite -sqlite3 -xinerama"
INPUT_DEVICES="-wacom" 0 kB

Total: 1 package (1 reinstall), Size of downloads: 0 kB

This is supposed to be fixed in portage-2.2_pre5 or earlier.

This is supposed to be fixed in portage-2.2_pre5 or earlier.

hm, the notification e-mail somehow slipped through ... so, a bit late thanks,
it works for me now!