* Package:    dev-cpp/eigen-3.3.7
 * Repository: gentoo
 * Maintainer: sci@gentoo.org kde@gentoo.org
 * USE:        abi_x86_64 amd64 cuda elibc_glibc kernel_linux openmp userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking eigen-3.3.7.tar.bz2 to /var/tmp/portage/dev-cpp/eigen-3.3.7/work
>>> Source unpacked in /var/tmp/portage/dev-cpp/eigen-3.3.7/work
>>> Preparing source in /var/tmp/portage/dev-cpp/eigen-3.3.7/work/eigen-3.3.7 ...
removed '/var/tmp/portage/dev-cpp/eigen-3.3.7/work/eigen-3.3.7/cmake/FindBLAS.cmake'
removed '/var/tmp/portage/dev-cpp/eigen-3.3.7/work/eigen-3.3.7/cmake/FindLAPACK.cmake'
 * Only gcc version(s) 4.7 4.8 4.9 5.3 5.4 6.3 6.4 7.2 7.3 are supported,
 * of which none is installed
 * ERROR: dev-cpp/eigen-3.3.7::gentoo failed (prepare phase):
 *   Only gcc version(s) 4.7 4.8 4.9 5.3 5.4 6.3 6.4 7.2 7.3 are supported
 * 
 * Call stack:
 *     ebuild.sh, line  124:  Called src_prepare
 *   environment, line 3132:  Called cuda_src_prepare
 *   environment, line 1294:  Called cuda_sanitize
 *   environment, line 1286:  Called cuda_gccdir '-f'
 *   environment, line 1277:  Called die
 * The specific snippet of code:
 *           die "Only gcc version(s) ${vers} are supported";
 * 
 * If you need support, post the output of `emerge --info '=dev-cpp/eigen-3.3.7::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-cpp/eigen-3.3.7::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/dev-cpp/eigen-3.3.7/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-cpp/eigen-3.3.7/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-cpp/eigen-3.3.7/work/eigen-3.3.7'
 * S: '/var/tmp/portage/dev-cpp/eigen-3.3.7/work/eigen-3.3.7'