https://bugs.gentoo.org/706154
--- a/configure
+++ b/configure
@@ -2583,7 +2583,7 @@ EOF
 				echo '#define TIFFSTRIPBYTECOUNTS uint32'
 				echo '#define TIFFVERSION TIFF_VERSION'
 				echo '#define TIFFHEADER TIFFHeader';;
-		4.[01])		tiff_runlen_t="uint32"
+		4.[0-9])	tiff_runlen_t="uint32"
 				tiff_offset_t="uint64"
 				echo '#define TIFFSTRIPBYTECOUNTS uint64'
 				echo '#define TIFFVERSION TIFF_VERSION_CLASSIC'