| app-admin/rsyslog | Include UUIDs in messages (requires sys-apps/util-linux) |
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| app-arch/dump | Enable UUID support |
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| dev-db/postgresql | Enable server side UUID generation (via dev-libs/ossp-uuid). |
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| net-fs/nfs-utils | Support UUID lookups in rpc.mountd |
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| net-libs/czmq | Enable UUID support using sys-apps/util-linux |
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| net-misc/wget | Generate UUIDs for the WARC (Web ARChive file format) using libuuid; otherwise use a simple RNG (random number generator) |
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| sys-fs/erofs-utils | Enables UUID support via sys-apps/util-linux. |
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| sys-libs/libnvme | UUID support via sys-apps/util-linux |
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| x11-libs/libSM | Use UUID for session identification instead of IP address and system time. |
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