Fixes #4797.

lib/pure/net.nim

@@ -106,6 +106,9 @@ when defineSsl:
   {.deprecated: [ESSL: SSLError, TSSLCVerifyMode: SSLCVerifyMode,
     TSSLProtVersion: SSLProtVersion, PSSLContext: SSLContext,
     TSSLAcceptResult: SSLAcceptResult].}
+else:
+  type
+    SslContext* = void # TODO: Workaround #4797.
 
 const
   BufferSize*: int = 4000 ## size of a buffered socket's buffer

tests/stdlib/thttpclient.nim

@@ -1,3 +1,7 @@
+discard """
+  cmd: "nim c -d:ssl $file"
+"""
+
 import strutils
 from net import TimeoutError