When tls-qca is being emerged, it only installs the shared lib into the QT-directory but it does not copy the qca.h which is necessary for compiling other applications, like the jabber client PSI. You can see that here: >>> Install qca-tls-1.0 into /var/tmp/portage/qca-tls-1.0/image/ category app-crypt cp -f "libqca-tls.so" "/var/tmp/portage/qca-tls-1.0/image//usr/qt/3/plugins/crypto/libqca-tls.so" strip --strip-unneeded "/var/tmp/portage/qca-tls-1.0/image//usr/qt/3/plugins/crypto/libqca-tls.so" man: prepallstrip: strip: strip: usr/qt/3/plugins/crypto/libqca-tls.so >>> Completed installing into /var/tmp/portage/qca-tls-1.0/image/ >>> Merging app-crypt/qca-tls-1.0 to / --- /usr/ --- /usr/qt/ --- /usr/qt/3/ --- /usr/qt/3/plugins/ --- /usr/qt/3/plugins/crypto/ >>> /usr/qt/3/plugins/crypto/libqca-tls.so --- /usr/share/ --- /usr/share/doc/ --- /usr/share/doc/qca-tls-1.0/ >>> /usr/share/doc/qca-tls-1.0/README.gz When I download the tarball, configure && make && make install, then I get (prefix)/include/qca.h Reproducible: Always Steps to Reproduce: 1. emerge tls-qca 2. try to find the header =) Portage 2.0.51-r3 (default-linux/x86/2004.0, gcc-3.4.3, glibc-2.3.4.20041102-r0, 2.6.9-gentoo-r4 i686) ================================================================= System uname: 2.6.9-gentoo-r4 i686 AMD Athlon(tm) XP 1700+ Gentoo Base System version 1.6.6 distcc 2.17 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.15.92.0.2-r1 Headers: sys-kernel/linux26-headers-2.6.8.1-r1 Libtools: sys-devel/libtool-1.5.2-r7 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=athlon-xp -m3dnow -mfpmath=sse -O3 -pipe -fforce-addr -fomit-frame-pointer -funroll-loops -falign-functions=4 -maccumulate-outgoing-args -ffast-math -fprefetch-loop-arrays -fstack-protector" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-xp -m3dnow -mfpmath=sse -O3 -pipe -fforce-addr -fomit-frame-pointer -funroll-loops -falign-functions=4 -maccumulate-outgoing-args -ffast-math -fprefetch-loop-arrays -fstack-protector" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache digest distcc distlocks sandbox sfperms" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow X acpi alsa apache2 arts avi bash-completion cdr crypt cups curl dgadirectfb divx4linux dvd encode exif extensions f77 fbcon ftp gif gpm gtk gtk2 icq imagemagick jabber java jikes jpeg kde lesstif libwww maildir mmx motif mozilla mpeg mysql ncurses network nls nptl nptlonly oggvorbis ooo-kde opengl oscar pam pdflib perl png posix ppds python qt quicktime readline samba scanner sdl slang speex spell sse ssl svg svga tcltk tetex tiff truetype unicode usb wmf wxwindows x86 xine xml xml2 xmms xosd xv xvid zlib"
fixed - thanks for the bug report.