diff options
| -rw-r--r-- | src/ninja.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/ninja.cc b/src/ninja.cc index 5bf8221..008c052 100644 --- a/src/ninja.cc +++ b/src/ninja.cc @@ -140,6 +140,13 @@ struct NinjaMain : public BuildLogUser { virtual bool IsPathDead(StringPiece s) { Node* n = state_.LookupNode(s); + // Just checking n isn't enough: If an old output is both in the build log + // and in the deps log, it will have a Node object in state_. (It will also + // have an in edge if one of its inputs is another output that's in the deps + // log, but having a deps edge product an output thats input to another deps + // edge is rare, and the first recompaction will delete all old outputs from + // the deps log, and then a second recompaction will clear the build log, + // which seems good enough for this corner case.) return !n || !n->in_edge(); } }; |