Bugzilla Bug 39769

emerge of usermode-sources fails on nonexistant file

Reproducible: Always
Steps to Reproduce:
1. emerge usermode-sources while running kernel 2.6.
2.
3.

Actual Results:  
arubis@daltoris: timestamp[ 11:05:49 on Thu Jan 29 ] ~ 
$ sudo emerge -uv gaim kbd usermode-sources
Calculating dependencies ...done!
>>> emerge (1 of 1) sys-kernel/usermode-sources-2.6.1-r1 to /
>>> md5 src_uri ;-) linux-2.6.1.tar.bz2
>>> md5 src_uri ;-) uml-patch-2.6.1-1.bz2
kernel
>>> Unpacking source...
>>> Unpacking linux-2.6.1.tar.bz2 to /var/tmp/portage/usermode-sources-2.6.1-r1/work
 * Applying uml-patch-2.6.1-1.bz2...                                      [ ok ]
Makefile:405:
/var/tmp/portage/usermode-sources-2.6.1-r1/work/linux-2.6.1/arch/x86/Makefile:
No such file or directory
make: *** No rule to make target
`/var/tmp/portage/usermode-sources-2.6.1-r1/work/linux-2.6.1/arch/x86/Makefile'.
 Stop.

!!! ERROR: sys-kernel/usermode-sources-2.6.1-r1 failed.
!!! Function kernel_universal_unpack, Line 97, Exitcode 2
!!! make mrproper died


Expected Results:  
Not attempt to make/compile anything, just patch sources and copy to /usr/src

emerge info:
Portage 2.0.49-r20 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r9, 2.6.1-gentoo)
=================================================================
System uname: 2.6.1-gentoo i686 AMD Athlon(tm) MP 2000+
Gentoo Base System version 1.4.3.10
distcc 2.11.1 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disable
                                    d]
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O3 -march=athlon-mp -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1
                                    /share/config /usr/kde/3/share/config
/usr/share/config /usr/share/texmf/tex/gen                                    
eric/config/ /usr/share/texmf/tex/platex/config/ /var/bind /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-O3 -march=athlon-mp -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox userpriv"
GENTOO_MIRRORS="http://gentoo.oregonstate.edu http://distro.ibiblio.org/pub/Linu
                                    x/distributions/gentoo"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow X X509 Xaw3d aalib acl acpi alsa apache2 apm arts avi berkdb bonobo c
                                    dr crypt cscope cups curl dga dillo directfb
doc dvd emacs encode esd ethereal e                                     vms2 evo
faad fbcon flash foomaticdb gb gd gdbm ggi gif gnome gnomedb gnutls gpm        
                             gtk gtk2 gtkhtml guile imap imlib innodb ipv6 jack
java jikes jpeg kde ladcca l                                     cd leim libg++
libgda libwww mad maildir mbox memlimit mikmod mmx motif mozilla               
                      mpeg mule mysql nas ncurses nls nvidia odbc offensive
oggvorbis opengl oss pam p                                     da pdflib perl
plotutils png postgres ppds python qt quicktime readline ruby sam              
                      ba sasl sdl slang slp spell sse ssl tcltk tcpd tetex tiff
transcode truetype usb                                      v4l videos wxwindows
x86 xface xinerama xml xml2 xmms xosd xv xvid zlib"

I too have the same problem with a 2.4 kernel:

Linux version 2.4.23_pre8-gss-r2 

 * Applying uml-patch-2.6.1-1.bz2...                                      [ ok ]
Makefile:405: /var/tmp/portage/usermode-sources-2.6.1-r1/work/linux-2.6.1/arch/x
86/Makefile: No such file or directory
make: *** No rule to make target `/var/tmp/portage/usermode-sources-2.6.1-r1/wor
k/linux-2.6.1/arch/x86/Makefile'.  Stop.
 
!!! ERROR: sys-kernel/usermode-sources-2.6.1-r1 failed.
!!! Function kernel_universal_unpack, Line 97, Exitcode 2
!!! make mrproper died

I couldn't reproduce this problem on my system, but I updated the ebuild to use
a newer eclass which I believe should solve this issue. Please see if it works
now.

ebuild now builds correctly.