Bugzilla Bug 203935

When emerging stepmania, the USE flag ffmpeg is required for the package to
successfully build. Otherwise, the compile process fails during configure with
an error about being unable to load libraries provided by ffmpeg.

Reproducible: Always

Steps to Reproduce:
1. Set USE="-ffmpeg" or fail to set USE="ffmpeg", either by command-line or in
/etc/make.conf.
2. Run 'emerge stepmania'.
3. Watch as the build fails.

Actual Results:  
Stepmania fails to configure.

Expected Results:  
Stepmania is installed.

The required libraries: libavformat libavcodec libswscale

# emerge --info:
Portage 2.1.3.19 (default-linux/x86/2007.0, gcc-4.1.1, glibc-2.5-r0,
2.6.23-gentoo-r3 i686)
=================================================================
System uname: 2.6.23-gentoo-r3 i686 Pentium III (Coppermine)
Timestamp of tree: Mon, 24 Dec 2007 05:30:07 +0000
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[enabled]
app-shells/bash:     3.2_p17
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.9
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.9.6-r2, 1.10
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.14
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17-r2
ACCEPT_KEYWORDS="x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=i686 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf
/etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/
/etc/php/cli-php5/ext-active/ /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-O2 -march=i686 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distcc distlocks metadata-transfer sandbox sfperms strict
unmerge-orphans userfetch"
GENTOO_MIRRORS="ftp://gentoo.mirrors.tds.net/gentoo
ftp://ftp.ussg.iu.edu/pub/linux/gentoo"
MAKEOPTS="-j19"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://192.168.1.27/portage"
USE="3dnow 3dnowext X a52 aac acl acpi afs aim alsa apache2 arts avi
bash-completion berkdb bitmap-fonts bzip2 bzlib caps cdr cli cracklib crypt
cups dba doc dri dvd dvdr dvdread emacs emacs-w3 encode esd ethereal examples
flac foomaticdb fortran freetds ftp gd gdbm gif gnome gpm graphviz gs gtk gtk2
hvm iconv icq ieee1394 imagemagick imap ipv6 isdnlog jabber java javascript
jpeg jpeg2k kde kerberos ldap libwww maildir mbox midi milter mime mjpeg motif
mozilla mp3 mpeg msn mssql mudflap mysql mysqli ncurses netboot nls no-htdocs
nptl nptlonly odbc ogg oggvorbis opengl openmp oscar oss pam pcre pda pdflib
perl php png ppds pppd python qt qt3 quicktime readline recode reflection samba
scanner sdl session simplexml snmp sockets spell spl ssl tcpd theora tidy tiff
tokenizer truetype truetype-fonts type1-fonts type1fonts unicode usb utf8 v4l2
vorbis wifi wmf x86 xml xorg xsl xv xvid yahoo zlib" ALSA_CARDS="ali5451
als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370
ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident
usb-audio via82xx via82xx-modem ymfpci" 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="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz
cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU"
VIDEO_CARDS="nvidia"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL,
LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS,
PORTAGE_RSYNC_EXTRA_OPTS

Created an attachment (id=139768) [edit]
config.log generated by emerge

This is the file requested by the failure message given when the build dies.
The complete message is reproduced here:

!!! Please attach the following file when filing a report to bugs.gentoo.org:
!!!
/var/tmp/portage/games-arcade/stepmania-3.9/work/StepMania-3.9-src/config.log
 *
 * ERROR: games-arcade/stepmania-3.9 failed.
 * Call stack:
 *              ebuild.sh, line 1701:  Called dyn_compile
 *              ebuild.sh, line 1039:  Called qa_call 'src_compile'
 *              ebuild.sh, line   44:  Called src_compile
 *   stepmania-3.9.ebuild, line   56:  Called econf
'--disable-dependency-tracking' '--without-debug' '--with-jpeg' '--with-vorbis'
'--without-mp3' '--enable-gtk2' '--disable-force-oss'
 *              ebuild.sh, line  638:  Called die
 * The specific snippet of code:
 *                      die "econf failed"
 *  The die message:
 *   econf failed
 *
 * If you need support, post the topmost build error, and the call stack if
relevant.
 * A complete build log is located at
'/var/tmp/portage/games-arcade/stepmania-3.9/temp/build.log'.
 *

Created an attachment (id=139770) [edit]
altered ebuild without ffmpeg USE flag

This is a very slight modification of the existing stepmania-3.9.ebuild file
already in the Portage tree. It removes ffmpeg from IUSE and places ffmpeg into
RDEPEND without a USE flag defining its inclusion.

Should be fixed now with patchset v2..

Sync in hour+