Bugzilla Bug 223183

I was trying to emerge k3b with USE="alsa dvdr dvdread encode ffmpeg flac hal
mp3 musicbrainz vcd vorbis -arts -css -debug -emovix -musepack -sndfile
-xinerama".
It pulled in transcode with :
media-video/transcode-1.0.6_rc2-r1  USE="X a52 dv dvdread iconv imagemagick
jpeg mmx mp3 mpeg ogg quicktime sse sse2 theora truetype vorbis xml xvid -3dnow
(-altivec) -extrafilters -fame -lzo -mjpeg -network -nuv -oss -sdl -v4l2"
but it failed giving :
>>> Emerging (1 of 1) media-video/transcode-1.0.6_rc2-r1 to /
.......
....
* checking transcode-1.0.6rc2.tar.bz2 ;-) ...                                  
            [ ok ]
 * 
 * ERROR: media-video/transcode-1.0.6_rc2-r1 failed.
 * Call stack:
 *                       ebuild.sh, line   49:  Called pkg_setup
 *   transcode-1.0.6_rc2-r1.ebuild, line   54:  Called built_with_use
'media-libs/libsdl' 'X'
 *                   eutils.eclass, line 1698:  Called die
 * The specific snippet of code:
 *      [[ -z ${PKG} ]] && die "Unable to resolve $1 to an installed package"
 *  The die message:
 *   Unable to resolve media-libs/libsdl to an installed package
 * 
 * If you need support, post ......
.....
...
My emerge --info is:
Portage 2.1.5.2 (default-linux/amd64/2007.0, gcc-4.2.3, glibc-2.7-r2,
2.6.25-gentoo-r4 x86_64)
=================================================================
System uname: 2.6.25-gentoo-r4 x86_64 Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz
Timestamp of tree: Tue, 20 May 2008 22:45:01 +0000
app-shells/bash:     3.2_p39
dev-java/java-config: 1.3.7, 2.1.6
dev-lang/python:     2.5.2-r3
sys-apps/baselayout: 2.0.0
sys-apps/openrc:     0.2.4-r1
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.62
sys-devel/automake:  1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1-r1
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.25-r3
ACCEPT_KEYWORDS="amd64 ~amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=nocona -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf
/etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/
/etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild
/etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-march=nocona -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="ccachei distlocks metadata-transfer parallel-fetch sandbox sfperms
strict unmerge-orphans userfetch"
GENTOO_MIRRORS="ftp://10.200.15.2/os/gentoo/gentoo-os
http://distfiles.gentoo.org
http://www.ibiblio.org/pub/Linux/distributions/gentoo"
LC_ALL="en_US.utf-8"
LDFLAGS=""
LINGUAS="en"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/verlihub"
SYNC="rsync://ftp.iitb.ac.in/gentoo/portage"
USE="X a52 aac aalib acl alsa amarok amd64 asf bash-completion berkdb bzip2
cairo cd cdr chroot cli cracklib crypt cups dbus dri dts dv dvd dvdr dvdread
encode exif ffmpeg flac fortran ftp ggi gif glitz gphoto2 gpm gtk gtk2 hal
iconv ieee1394 imagemagick imap imlib ipod isdnlog jabber java javascript jbig
jpeg jpeg2k kde lm_sensors mad matroska matrox midi mime mmx mmxext mng mozilla
mp2 mp3 mp4 mpeg mplayer mudflap musicbrainz ncurses nls nptl nptlonly nsplugin
ogg opengl openmp pam pcre pdf perl php plotutils png pppd python qt3 qt4
quicktime rar rdesktop readline reflection ruby session smp socks speex spell
spl srt sse sse2 ssl svg tcpd tetex theora threads tiff truetype unicode usb
utempter vcd videos vim-syntax vlm vorbis wavpack wmf wxwindows x264 xface xine
xml xorg xpm xscreensaver xv xvid xvmc zlib" ALSA_CARDS="hda-intel"
ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file
hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route
share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias
authn_anon authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs
dav_lock deflate dir disk_cache env expires ext_filter file_cache filter
headers include info log_config logio mem_cache mime mime_magic negotiation
rewrite setenvif speling status unique_id userdir usertrack vhost_alias"
ELIBC="glibc" INPUT_DEVICES="evdev mouse keyboard" KERNEL="linux"
LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses
text" LINGUAS="en" USERLAND="GNU" VIDEO_CARDS="nvidia"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

I have found a workaround/fix(??) for this.
Do
emerge -av1 media-libs/libsdl
and then
emerge -av transcode
and you are done!
Looks like transcode needs libsdl, and a minor change in ebuild should do the
trick.

~S
PS: I have no idea what libsdl is and why transcode needs it, its just my guess
and my observation that feeding libsdl to emerge first allows compiling me
transcode (and eventually k3b)

Reproducible: Always

Steps to Reproduce:
1.Make sure media-libs/libsdl is not emerged already
2.emerge -av transcode
[ebuild   R   ] media-video/transcode-1.0.6_rc2-r1
3.The ebuild fails complaing :
Unable to resolve media-libs/libsdl to an installed package
Actual Results:  
Ebuild failed.

Expected Results:  
Ebuild should pull libsdl (if it is *really* required by transcode) and emerge
it with USE="X" flag and then continue with transcode

If anyone can find out if transcode *really* needs libsdl then a bug should be
filed for the media-video/transode ebuild to make necessary changes

~S

That was an incredibly stupid oversight on my part.  Fixed in CVS.