Alternative fix for the Nimble binary-only package problem

rlp.nimble

@@ -6,9 +6,8 @@ author        = "Status Research & Development GmbH"
 description   = "RLP serialization library for Nim"
 license       = "Apache License 2.0"
 skipDirs      = @["tests"]
+installDirs   = @["rlp"]
 bin           = @["rlp/bin/rlp_inspect"]
-# avoid being considered a binary-only package: https://github.com/nim-lang/nimble/blob/66d79bf9a0970542351988fa31f487a1e70144f7/src/nimblepkg/packageparser.nim#L280
-installExt    = @["nim"]
 
 requires "nim >= 0.17.0",
          "ranges"

rlp/writer.nim

@@ -241,14 +241,14 @@ proc appendImpl(self; data: tuple) {.inline.} =
 
 # We define a single `append` template with a pretty low specifity
 # score in order to facilitate easier overloading with user types:
-template append*[T](self; data: T) =
+template append*[T](w: var RlpWriter; data: T) =
   when data is float64:
     # XXX: This works around an overloading bug.
     # Apparently, integer literals will be converted to `float64`
     # values with higher precedence than the generic match to Integer
-    appendFloat(self, data)
+    appendFloat(w, data)
   else:
-    appendImpl(self, data)
+    appendImpl(w, data)
 
 proc initRlpList*(listSize: int): RlpWriter =
   result = initRlpWriter()