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Diffstat (limited to 'src/libfetchers/attrs.hh')
| -rw-r--r-- | src/libfetchers/attrs.hh | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libfetchers/attrs.hh b/src/libfetchers/attrs.hh index a2d53a7bf..e41037633 100644 --- a/src/libfetchers/attrs.hh +++ b/src/libfetchers/attrs.hh @@ -6,6 +6,8 @@ #include <nlohmann/json_fwd.hpp> +#include <optional> + namespace nix::fetchers { typedef std::variant<std::string, uint64_t, Explicit<bool>> Attr; |