diff --git a/configure b/configure
old mode 100755
new mode 100755
index 7a47928440..8b16282615
--- a/configure
+++ b/configure
@@ -2581,7 +2581,7 @@ EOF
 				echo '#define TIFFSTRIPBYTECOUNTS uint32'
 				echo '#define TIFFVERSION TIFF_VERSION'
 				echo '#define TIFFHEADER TIFFHeader';;
-		4.0)		tiff_runlen_t="uint32"
+		4.[01])		tiff_runlen_t="uint32"
 				tiff_offset_t="uint64"
 				echo '#define TIFFSTRIPBYTECOUNTS uint64'
 				echo '#define TIFFVERSION TIFF_VERSION_CLASSIC'