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-rw-r--r--libbuild2/utility.hxx3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index f7a437e..a6a7ac3 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -165,6 +165,9 @@ namespace build2
// state dump). If it is empty, then relative() below returns the original
// path.
//
+ // @@ CTX: this could be an issue if changed concurrently from several
+ // contexts.
+ //
LIBBUILD2_SYMEXPORT extern const dir_path* relative_base;
// If possible and beneficial, translate an absolute, normalized path into