Daniël de Kok 27d0c5a07e sentencepiece: split into multiple outputs, optional gperftools ... I am using sentencepiece in a downstream application where I want to minimize the resulting closures. This commit makes changes to make sentencepiece a leaner dependency: - Split the outputs, so that the binaries/headers do not end up in the transitive closure in a library dependency. - Add the `withGPerfTools` option, which is enabled by default, to make it possible to disable the gperftools dependency. According to the sentencepiece README, this dependency gives a 10-40% performance improvement. But in many cases this is overshadowed by the neural networks that use piece identifiers as input anyway.		2020-03-14 15:40:29 -07:00
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default.nix