Created attachment 283739 [details] Build log. Package sci-libs/flann with mpi flag enabled seems to depend on mpi both on the runtime and build time. I propose to add: mpi? ( virtual/mpi ) in RDEPEND and DEPEND of this library. Library not builds without mpi installed if mpi flag is used. The error is: CMake Error at /usr/share/cmake/Modules/CMakeDetermineCXXCompiler.cmake:43 (MESSAGE): Could not find compiler set in environment variable CXX: mpicxx. Full build log is in attach. Also there is few strings from ebuild: DEPEND="${DEPEND} app-arch/unzip test? ( dev-util/gtest )" I think it is may be typo and this should be written as: DEPEND="${RDEPEND} app-arch/unzip test? ( dev-util/gtest )"
fixed in cvs. thanks.