cmake HAVE_HMAC_CTX_FREE examples

OriginHubAI/MyScaleDB contrib/libpq-cmake/CMakeLists.txt :63 

add_definitions(-DHAVE_HMAC_CTX_FREE)

chdb-io/chdb contrib/postgres-cmake/CMakeLists.txt :67 

add_definitions(-DHAVE_HMAC_CTX_FREE)

ClickHouse/ClickHouse contrib/postgres-cmake/CMakeLists.txt :66 

add_definitions(-DHAVE_HMAC_CTX_FREE)