cmake says: -- The following OPTIONAL packages could NOT be located on your system. -- Consider installing them to enable more features from this software. + Eigen2: A C++ template library for linear algebra <kdesupport> Needed to build the krotation and kpendulum screensavers After emerging dev-cpp/eigen:2, the screensavers are successfully built. So it would be nice if eigen was a fixed dependency or if there was a use flag for activating those additional screensavers. emerge --info Portage 2.1.6.7 (default/linux/amd64/2008.0/desktop, gcc-4.3.3, glibc-2.8_p20080602-r1, 2.6.27-gentoo-r8 x86_64) ================================================================= System uname: Linux-2.6.27-gentoo-r8-x86_64-Intel-R-_Core-TM-2_CPU_4300_@_1.80GHz-with-glibc2.2.5 Timestamp of tree: Fri, 06 Mar 2009 08:45:01 +0000 ccache version 2.4 [enabled] app-shells/bash: 3.2_p39 dev-java/java-config: 2.1.6-r1 dev-lang/python: 2.5.2-r7 dev-util/ccache: 2.4-r7 dev-util/cmake: 2.6.2-r1 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.4.1-r1 sys-apps/sandbox: 1.3.7 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 2.2.4 virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -fgcse-after-reload -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/ca-certificates.conf /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/sandbox.d /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-march=native -O2 -fgcse-after-reload -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="ccache collision-protect distlocks fixpackages metadata-transfer parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://mirror.jamit.de/gentoo/ http://mirror.cambrium.nl/pub/os/linux/gentoo/ http://mirror.netcologne.de/gentoo/ http://mirror.switch.ch/ftp/mirror/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo" LANG="de_DE.utf8" LC_ALL="de_DE.utf8" LDFLAGS="-Wl,-O1" LINGUAS="de" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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/java-overlay /usr/portage/local/layman/gnash-cvs /usr/portage/local/layman/sunrise /usr/portage/local/layman/toolchain /usr/portage/local/layman/jokey /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X Xaw3d a52 aac aalib accessibility acl acpi agg akode alsa amarok amd64 apache2 bash-completion berkdb blender-game branding bzip2 cairo captury cdaudio cdr cdrom cjk cli clucene cracklib crypt cups curl cviewer daap dbus designer-plugin dga dirac djvu dri dvd dvdnav dvdr dvdread dxr3 eds emacs embedded emboss encode evo fam fbcon ffmpeg fftw firefox fits flac fltk fortran gcj gdbm ggi glibc-omitfp glitz gopher gpg gpm gstreamer hal hdri htmlhandbook iceweasel iconv icu imagemagick insecure-savers ipv6 isdnlog jabber jack java java5 java6 javascript jingle jpeg kde kde4 kdebuild kdecards kdeenablefinal kdehiddenvisibility kdepim kdm kontact ktts latex lcms ldap libcaca libnotify libwww lm_sensors logitech-mouse lua lzma matroska mdnsresponder-compat midi mikmod mmx mng mp3 mpeg mpeg2 mpi mudflap mule multilib musepack mysql ncurses neon nepomuk nls noamazon nova nptl nptlonly nsplugin offensive ogg ogg123 openal openexr opengl openmp oscar oss otr pam pcre pdf perl plasma png posix povray ppds pppd python qt3support qt4 readline redland reflection reiser4 reiserfs schroedinger sdl sdl-image semantic-desktop sensord session sndfile solver songs sound speex spell spl sse sse2 ssl startup-notification svg sysfs tcpd tetex theora threads tidy tiff tools truetype type1 unicode usb vhook visualization vorbis wav wavpack xcomposite xemacs xine xml xorg xosd xprint xscreensaver xulrunner xv zip zlib"ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci 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 mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd 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 dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de" USERLAND="GNU" VIDEO_CARDS="i810 intel vesa" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Reassigning to kde herd.
Dep adjusted. Good idea (no need for useflag added as harddep).
(In reply to comment #2) > Dep adjusted. Good idea (no need for useflag added as harddep). > It is not a good idea to add a hard dependency, because not all people use screensavers that require dev-cpp/eigen to work. Please, consider to add a use flag for such screensavers.
And what name for the useflag do you think it would carry mathematic, statistic, computation? Reopening for now
Why not just call it 'eigen2'? The use flag description could be something like "enable optional screensavers that require linear algebra via dev-cpp/eigen"
That is the problem useflag should be at least a bit descriptive... If you see eigen2 in use would you thing that "I definetly need the stuff"? ;]
Fix0r. Added eigen useflag. :]
