sys-kernel/gentoo-kernel ccache

llvm-core/llvm ccache
llvm-core/clang ccache
llvm-core/lldb ccache

media-libs/mesa ccache

www-client/firefox ccache
mail-client/thunderbird ccache

www-client/chromium ccache

net-libs/nodejs ccache

media-video/ffmpeg ccache

app-emulation/qemu

media-libs/opencv ccache

dev-lang/python ccache

app-office/libreoffice ccache