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-rw-r--r--build/target-key2
1 files changed, 1 insertions, 1 deletions
diff --git a/build/target-key b/build/target-key
index 9e74c27..04a5b26 100644
--- a/build/target-key
+++ b/build/target-key
@@ -43,7 +43,7 @@ namespace build
mutable const target_type* type;
mutable const dir_path* dir;
mutable const std::string* name;
- mutable const std::string* const* ext;
+ mutable const std::string* const* ext; // Note only *ext can be NULL.
friend bool
operator< (const target_key& x, const target_key& y)