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-rw-r--r--libbuild2/cc/guess.hxx3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbuild2/cc/guess.hxx b/libbuild2/cc/guess.hxx
index 7cbbd87..dfa8aa2 100644
--- a/libbuild2/cc/guess.hxx
+++ b/libbuild2/cc/guess.hxx
@@ -160,6 +160,9 @@ namespace build2
// checksum will still change. This is currently the case for all the
// compilers that we support.
//
+ // And we assume that the checksum incorporates the absolute compiler
+ // path. This is used to detect compilation database changes.
+ //
// The target is the compiler's traget architecture triplet. Note that
// unlike all the preceding fields, this one takes into account the
// compile options (e.g., -m32).