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authorEelco Dolstra <eelco.dolstra@logicblox.com>2012-11-26T16·15+0100
committerEelco Dolstra <eelco.dolstra@logicblox.com>2012-11-26T16·15+0100
commit8d8d47abd2a66898aa5d8999fcd75b29991e529d (patch)
tree01ff64266efd7b5bf00f9e763b43f0b0fe469219 /INSTALL
parent46a369ad9558939bc2c6ee588df483ca503bbb5a (diff)
Only substitute wanted outputs of a derivation
If a derivation has multiple outputs, then we only want to download
those outputs that are actuallty needed.  So if we do "nix-build -A
openssl.man", then only the "man" output should be downloaded.
Likewise if another package depends on ${openssl.man}.

The tricky part is that different derivations can depend on different
outputs of a given derivation, so we may need to restart the
corresponding derivation goal if that happens.
Diffstat (limited to 'INSTALL')
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