Changed my mind about the #define. We are still using has_multifilter…

…s in nc-config, and I can see where people might want to use this define to write code that works with modern and older versions of netCDF.

include/netcdf_meta.h.in

@@ -61,6 +61,7 @@
 #define NC_DISPATCH_VERSION  @NC_DISPATCH_VERSION@ /*!< Dispatch table version. */
 #define NC_HAS_PAR_FILTERS   @NC_HAS_PAR_FILTERS@ /* Parallel I/O with filter support. */
 #define NC_HAS_LOGGING       @NC_HAS_LOGGING@ /*!< Logging support. */
+#define NC_HAS_MULTIFILTERS  @NC_HAS_MULTIFILTERS@ /*!< Nczarr support. */
 #define NC_HAS_QUANTIZE      @NC_HAS_QUANTIZE@ /*!< Quantization support. */
 #define NC_HAS_ZSTD          @NC_HAS_ZSTD@ /*!< Zstd support. */
 #define NC_HAS_BENCHMARKS    @NC_HAS_BENCHMARKS@ /*!< Benchmarks. */