DESCRIPTION: I wasn't able to compile dev-lang/swi-prolog-5.6.22 with java flag as long as i hadn't emerged dev-java/blackdown-jdk. swi-prolog requires javac and no jre seems to make it possible. to install jdk fix the problem. INFORMATIONS: $ emerge --info swi-prolog Portage 2.1.1-r1 (default-linux/amd64/2005.1, gcc-3.4.6, glibc-2.4-r4, 2.6.17-gentoo-r4 x86_64) ================================================================= System Settings ================================================================= System uname: 2.6.17-gentoo-r4 x86_64 AMD Athlon(tm) 64 Processor 3200+ Gentoo Base System version 1.12.6 Last Sync: Wed, 08 Nov 2006 12:50:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.7, 2.0.30 dev-lang/python: 2.3.5-r2, 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.60 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r4 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=k8 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=k8 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/" LANG="fr_FR.UTF-8" LC_ALL="fr_FR.UTF-8" LINGUAS="fr fr_FR" MAKEOPTS="-j2" 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'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X aac acpi aim alsa amd64 arts asf audiofile avi berkdb bitmap-fonts bzip2 cdparanoia cdr cli cracklib crypt css cups divx4linux dlloader dri dvd dvdr dvdread eds elibc_glibc emboss encode esd ffmpeg flac foomaticdb fortran gif glut gnome gpm gtk gtk2 hal iconv icq imagemagick imlib input_devices_wacom ipv6 isdnlog jabber java javascript jpeg kde kernel_linux libcaca linguas_fr linguas_fr_FR lzw lzw-tiff mad mikmod mime mono mp3 mpeg msn musepack musicbrainz mysql ncurses nls nptl nptlonly nvidia ogg oggvorbis openal opengl pam pcre perl php png pppd python qt qt3 qt4 quicktime readline reflection sdl session sndfile sockets spell spl sqlite ssl tcpd tiff truetype truetype-fonts type1-fonts udev unicode usb userland_GNU vcd video_cards_nvidia videos vorbis wacom xine xml xml2 xorg xpm xv xvid yahoo zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Of course it requires JDK (and it already depend on virtual/jdk w/ USE=java).
