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-rw-r--r--build2/utility.cxx8
1 files changed, 6 insertions, 2 deletions
diff --git a/build2/utility.cxx b/build2/utility.cxx
index cbae507..07cf88e 100644
--- a/build2/utility.cxx
+++ b/build2/utility.cxx
@@ -254,10 +254,14 @@ namespace build2
fail (loc) << "unable to execute " << args[0] << ": " << e << endf;
}
- const string empty_string;
- const path empty_path;
+ const string empty_string;
+ const path empty_path;
const dir_path empty_dir_path;
+ const optional<string> nullopt_string;
+ const optional<path> nullopt_path;
+ const optional<dir_path> nullopt_dir_path;
+
void
append_options (cstrings& args, const lookup& l, const char* e)
{