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-rw-r--r--src/grids.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/grids.cpp b/src/grids.cpp
index 7842d39b..c5fc6c74 100644
--- a/src/grids.cpp
+++ b/src/grids.cpp
@@ -309,8 +309,11 @@ constexpr uint16 TIFFTAG_GEOTRANSMATRIX = 34264;
constexpr uint16 TIFFTAG_GEOKEYDIRECTORY = 34735;
constexpr uint16 TIFFTAG_GEODOUBLEPARAMS = 34736;
constexpr uint16 TIFFTAG_GEOASCIIPARAMS = 34737;
+#ifndef TIFFTAG_GDAL_METADATA
+// Starting with libtiff > 4.1.0, those symbolic names are #define in tiff.h
constexpr uint16 TIFFTAG_GDAL_METADATA = 42112;
constexpr uint16 TIFFTAG_GDAL_NODATA = 42113;
+#endif
// ---------------------------------------------------------------------------