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authorOliver Reiche <oliver.reiche@huawei.com>2023-08-28 18:05:23 +0200
committerOliver Reiche <oliver.reiche@huawei.com>2023-08-29 10:29:51 +0200
commita34bee19b690fab6bf6353fab18af3b350e77049 (patch)
tree051e1c3d9c8d900952d44fb7cfebdefdbb4dfa9b /src/utils/cpp/json.hpp
parent9a52774c7da0d77d907c7e93d56ada6c362d50b1 (diff)
downloadjustbuild-a34bee19b690fab6bf6353fab18af3b350e77049.tar.gz
fmt: Specialize formatter only for version >= 10
(cherry picked from 53ba5581070bc8914a35a5e16af901c562923e61)
Diffstat (limited to 'src/utils/cpp/json.hpp')
-rw-r--r--src/utils/cpp/json.hpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/utils/cpp/json.hpp b/src/utils/cpp/json.hpp
index 9fd2d66d..d83f30ed 100644
--- a/src/utils/cpp/json.hpp
+++ b/src/utils/cpp/json.hpp
@@ -21,6 +21,7 @@
#include <string>
#include <unordered_map>
+#include "fmt/core.h"
#include "fmt/ostream.h"
#include "gsl/gsl"
#include "nlohmann/json.hpp"
@@ -213,10 +214,12 @@ namespace detail {
return old_abbrev;
}
+#if defined(FMT_VERSION) and FMT_VERSION >= 100000
// Use nlohmann::basic_json::operator<<() for formatting via libfmt.
// This explicit template specialization seems to be required starting with
// libfmt 10.x.
template <>
struct fmt::formatter<nlohmann::basic_json<>> : ostream_formatter {};
+#endif
#endif // INCLUDED_SRC_UTILS_CPP_JSON_HPP