cmake AI_SDK_HAS_OPENAI examples

ClickHouse/ClickHouse contrib/ai-sdk-cpp-cmake/CMakeLists.txt :114 

target_compile_definitions(_ai-sdk-cpp-openai
    PUBLIC
        AI_SDK_HAS_OPENAI=1
    PRIVATE
        CPPHTTPLIB_OPENSSL_SUPPORT=1
        CPPHTTPLIB_BROTLI_SUPPORT=1
        CPPHTTPLIB_THREAD_POOL_COUNT=8
)

ClickHouse/ClickHouse contrib/ai-sdk-cpp-cmake/CMakeLists.txt :165 

target_compile_definitions(_ai-sdk-cpp
    INTERFACE
        AI_SDK_HAS_OPENAI=1
        AI_SDK_HAS_ANTHROPIC=1
)