cmake: Build bitcoin_consensus library

Author: hebasto

src/CMakeLists.txt

@@ -9,3 +9,22 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
 add_subdirectory(crypto)
 add_subdirectory(univalue)
 add_subdirectory(util)
+
+
+# Stable, backwards-compatible consensus functionality
+# also exposed as a shared library and/or a static one.
+add_library(bitcoin_consensus OBJECT EXCLUDE_FROM_ALL
+  arith_uint256.cpp
+  consensus/merkle.cpp
+  consensus/tx_check.cpp
+  hash.cpp
+  primitives/block.cpp
+  primitives/transaction.cpp
+  pubkey.cpp
+  script/interpreter.cpp
+  script/script.cpp
+  script/script_error.cpp
+  uint256.cpp
+  util/strencodings.cpp
+)
+target_link_libraries(bitcoin_consensus PRIVATE secp256k1)