fix for platformio whining about missing definition for size_t

src/ESP32-targz-lib.cpp

@@ -2280,6 +2280,7 @@ bool TarGzUnpacker::tarGzStreamExpander( Stream *stream, fs::FS &destFS, const c
     }
 
     //log_d("unpack complete (%d bytes)", use_dict ? tarGzIO.gz_size : GzUpdateClass_Write_Offset );
+    // TODO: return actual uncompressed length
 
     return len;
   }

src/ESP32-targz-lib.hpp

@@ -360,7 +360,7 @@ struct TarGzUnpacker : public TarUnpacker, public GzUnpacker
           * size of the stream must be known in order to signal zlib inflator last chunk
           *
           * @param data Stream object, usually data from a tcp socket
-          * @param len total length of compressed data to read from stream
+          * @param len total length of compressed data to read from stream (actually ignored)
           * @return size_t number of bytes processed from a stream
           */
           size_t writeGzStream(Stream &data, size_t len);

src/ESP32-targz.h

@@ -3,6 +3,7 @@
 
 // Figure out the fs::FS library to load for the **destination** filesystem
 
+
 #if defined ESP32
 
   #if defined DEST_FS_USES_SPIFFS
@@ -126,6 +127,8 @@
   #define WARN_LIMITED_FS
 #endif
 
+#include <stddef.h> // platformio whines about missing definition for 'size_t' 🤦
+
 // required filesystem helpers are declared outside the main library
 // because ESP32/ESP8266 <FS.h> use different abstraction flavours :)
 __attribute__((unused)) static size_t targzFreeBytesFn() {