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-rw-r--r--build2/cc/common2
1 files changed, 1 insertions, 1 deletions
diff --git a/build2/cc/common b/build2/cc/common
index 2c79fa6..f0476f9 100644
--- a/build2/cc/common
+++ b/build2/cc/common
@@ -229,7 +229,7 @@ namespace build2
bin::lib&,
bin::liba*,
bin::libs*,
- const string*,
+ const optional<string>&,
const string&,
const dir_path&,
const dir_paths&) const; // pkgconfig.cxx