i needed exim and msmtp together on one host. So i put 'mail-mta/msmtp mailwrapper' in /etc/portage/package.use . msmtp emerges fine, but at the next emerge -uD world emerge fails with: [blocks B ] mail-mta/msmtp (is blocking mail-mta/exim-4.62) I think the following line in msmtp-1.4.0.ebuild is responsible for it: PROVIDE="virtual/mta" . Always providing "virtual/mta" no matter if "mailwrapper" is 'in use' or not. If manually remove ${PORT_D}/pkg/mail-mta/PROVIDE then portage works without this blocking message. Portage 2.1.1 (default-linux/x86/2006.1, gcc-4.1.1, glibc-2.4-r3, 2.6.15-jason-1-cs i686) ================================================================= System uname: 2.6.15-jason-1-cs i686 unknown Gentoo Base System version 1.12.5 Last Sync: Wed, 18 Oct 2006 02:00:09 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.2.11-r1 dev-lang/python: 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, 2.59-r7 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: 2.6.17-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i586-pc-linux-gnu" CFLAGS="-O2 -march=i586 -fomit-frame-pointer -pipe" CHOST="i586-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/mail/dspam /var/bind /var/run/dspam" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=i586 -fomit-frame-pointer -pipe" DISTDIR="/var/portage/distfiles" FEATURES="autoconfig distcc distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/" LANG="de_DE" LC_ALL="de_DE" LINGUAS="" MAKEOPTS="-j3" PKGDIR="/var/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="/var/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 bzip2 cli cracklib crypt dlloader dri elibc_glibc fortran gd imap input_devices_evdev input_devices_keyboard input_devices_mouse isdnlog jpeg kernel_linux ldap libg++ lm_sensors mbox mysql ncurses nptl nptlonly pam pcre perl png ppds pppd readline reflection sasl session snmp spl ssl syslog tcpd tiff truetype udev unicode userland_GNU video_cards_apm video_cards_ark video_cards_ati video_cards_chips video_cards_cirrus video_cards_cyrix video_cards_dummy video_cards_fbdev video_cards_glint video_cards_i128 video_cards_i740 video_cards_i810 video_cards_imstt video_cards_mga video_cards_neomagic video_cards_nsc video_cards_nv video_cards_rendition video_cards_s3 video_cards_s3virge video_cards_savage video_cards_siliconmotion video_cards_sis video_cards_sisusb video_cards_tdfx video_cards_tga video_cards_trident video_cards_tseng video_cards_v4l video_cards_vesa video_cards_vga video_cards_via video_cards_vmware video_cards_voodoo xml xml2 xorg zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Not portage.
That won't work, you need to re-emerge _all_ MTAs with USE=mailwrapper. The provide is just fine, stick mailwrapper to make.conf and re-emerge exim.
