--- CMakeLists.txt.orig	2024-05-21 09:44:13 UTC
+++ CMakeLists.txt
@@ -44,12 +44,9 @@ mark_as_advanced(STRICT_NLOHMANN_JSON_VERSION)
 mark_as_advanced(ONLY_BUILD_SOLIDITY_LIBRARIES)
 mark_as_advanced(STRICT_NLOHMANN_JSON_VERSION)
 
-# Setup cccache.
-include(EthCcache)
-
 # Let's find our dependencies
 include(EthDependencies)
-if (NOT USE_SYSTEM_LIBRARIES)
+if (USE_SYSTEM_LIBRARIES)
   include(fmtlib)
   include(nlohmann-json)
   include(range-v3)