Bugzilla Bug 28423

When I emerge -Up kdevelop the script outputs: 
[ebuild     U ] dev-util/kdevelop-2.1.5 [3.0_alpha5] 
 
So it seems that the ebuild files are wrong for kdevelop somehow? 3.0_alpha5 is 
ofcourse an unstable release, but it should see it as > 2.1.5. So -U should disregard this 
"update". 
 
To reproduce, emerge kdevelop-3.0_alpha5 and emerge -Up kdevelop afterwards.

Please add your "emerge info" output.

emerge info: 
Portage 2.0.49-r3 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r1, 2.4.20-gentoo-r5) 
================================================================= 
System uname: 2.4.20-gentoo-r5 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz 
ACCEPT_KEYWORDS="x86" 
AUTOCLEAN="yes" 
CFLAGS="-march=pentium4 -msse2 -O3 -pipe" 
CHOST="i686-pc-linux-gnu" 
COMPILER="gcc3" 
CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config 
/usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/config" 
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" 
CXXFLAGS="-march=pentium4 -msse2 -O3 -pipe" 
DISTDIR="/usr/portage/distfiles" 
FEATURES="sandbox ccache" 
GENTOO_MIRRORS="ftp://gentoo.bzimage.dk/pub/gentoo" 
MAKEOPTS="-j2" 
PKGDIR="/usr/portage/packages" 
PORTAGE_TMPDIR="/var/tmp" 
PORTDIR="/usr/portage" 
PORTDIR_OVERLAY="" 
SYNC="rsync://rsync.bzImage.dk/gentoo-portage" 
USE="x86 oss apm avi crypt cups encode foomaticdb gif jpeg gnome libg++ mad mikmod mmx 
mpeg ncurses nls pdflib png quicktime spell truetype xml2 xmms xv zlib gdbm berkdb slang 
readline arts tetex svga java mysql X sdl gpm tcpd pam libwww ssl perl python esd imlib 
oggvorbis gtk qt kde motif opengl mozilla" 
 
 

The meaning of -U is preventing downgrades, but portage does not want to 
downgrade kdevelop, it just want to install also the most stable version. (the 
two versions are slotted and can coexist. 
 

Why isn't it marked as [ebuild N] then? I don't have kdevelop-2.1.x installed
at all, and when I do 
a emerge -p world it outputs: 
[ebuild     U ] dev-util/kdevelop-2.1.5 [3.0_alpha5] 

And even with -Up it still wants to upgrade it. 

So it must be linked to kdevelop-3.0 somehow. 

newer portage versions show it as N

*** This bug has been marked as a duplicate of 33520 ***