>>> Unpacking source...
>>> Unpacking qca-ossl-2.0.0-beta3.tar.bz2 to /var/tmp/portage/app-crypt/qca-ossl-2.0.0_beta3/work
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/app-crypt/qca-ossl-2.0.0_beta3/work/qca-ossl-2.0.0-beta3 ...
Configuring qca-ossl ...
Verifying Qt 4 build environment ... ok
Checking for QCA >= 2.0 ... no

Error: need QCA >= 2.0!

 [31;01m*[0m 
 [31;01m*[0m ERROR: app-crypt/qca-ossl-2.0.0_beta3 failed.
 [31;01m*[0m Call stack:
 [31;01m*[0m               ebuild.sh, line   46:  Called src_compile
 [31;01m*[0m             environment, line 2473:  Called die
 [31;01m*[0m The specific snippet of code:
 [31;01m*[0m       ./configure --qtdir=/usr $(use debug && echo "--debug" || echo "--release") --no-separate-debug-info || diefunc "$FUNCNAME" "$LINENO" "$?" "configure failed";
 [31;01m*[0m  The die message:
 [31;01m*[0m   configure failed
 [31;01m*[0m 
 [31;01m*[0m If you need support, post the topmost build error, and the call stack if relevant.
 [31;01m*[0m A complete build log is located at '/var/tmp/portage/app-crypt/qca-ossl-2.0.0_beta3/temp/build.log'.
 [31;01m*[0m The ebuild environment file is located at '/var/tmp/portage/app-crypt/qca-ossl-2.0.0_beta3/temp/environment'.
 [31;01m*[0m This ebuild is from an overlay: '/usr/local/portage/layman/kde/'
 [31;01m*[0m