Bugzilla Bug 67537

ebuild checks for pygtk if set USE=gnome, but won't find the USEflag because
its call >I<USE in pygtk.

/usr/portage/app-portage/porthole/porthole-0.3.1.ebuild:
line 22 USE should be replaced with IUSE !

        for pygtk_install in /var/db/pkg/dev-python/pygtk*; do
                if grep 2 ${pygtk_install}/SLOT > /dev/null; then
                        for flag in `cat ${pygtk_install}/USE`; do <-- IUSE
                                if [ ${flag} == gnome ]; then
                                        gnome_flag="found"
                                fi
                        done
                fi
        done


Reproducible: Always
Steps to Reproduce:

The problem with lacking Gnome support is only applicable for
=>dev-python/pygtk -2.0.0 releases. Steps to reproduce bug:

1. bash# emerge -p app-portage/porthole

   These are the packages that I would merge, in order:

   Calculating dependencies ...done!
   [ebuild     U ] dev-python/pygtk-2.4.0 [1.99.13-r1] 
   [ebuild  N    ] app-portage/porthole-0.3.1

2. bash# emerge --nodeps app-portage/porthole

3. bash# porthole 
Traceback (most recent call last):
  File "/usr/bin/porthole", line 40, in ?
    import utils
  File "/usr/lib/porthole/utils.py", line 43, in ?
    import pygtk; pygtk.require("2.0") # make sure we have the right version
                  ^^^^^^^^^^^^^^^^^^^^

porthole does not require gnome support, but =>dev-python/pygtk-2.0.0 which the
ebuild states (DEPENDS="=>dev-python/pygtk-2.0.0").  Propose to remove lines
20-36 of the ebuild as:

0. Porthole requires =>dev-python/pygtk-2.0.0

1. It doesn't make any sense to check for IUSE="gnome" in the pygtk ebuild
because =>dev-python/pygtk-2.0.0 always IUSE="gnome"

2. Users should be allowed to shoot themselves in the foot if merging with
--nodeps.

Created an attachment (id=41845) [edit]
Updated ebuild according to comment #1

Removed pkg_setup()

I have excluded the gnome flag check in the -0.4.1_rc1 release.  Also -0.3.1 is
obsolete and does not work with >=portage-2.0.51.

reference bug # 68670.

so is this an issue with 0.4.1?

pkg_setup() {
        local gnome_flag=false

        for pygtk_install in /var/db/pkg/dev-python/pygtk*; do
                cd ${pygtk_install} || die
                if [[ $(<SLOT) == 2 && " $(<USE) " == *" gnome "* ]]; then
                        gnome_flag=true
                        break
                fi
        done

        if ! ${gnome_flag}; then
                echo
                eerror "pygtk was not merged with the gnome"
                eerror "USE flag. Porthole requires pygtk be"
                eerror "built with this flag for libglade support."
                die "pygtk missing gnome support"
        fi
}

is horribly wrong, inherit eutils and use built_with_use
>=dev-python/pygtk-2.0.0 gnome

Created an attachment (id=76228) [edit]
change pkg_setup() to use built_with_use

Applied patch. Thanks!