Merge pull request #654 from eclipse-zenoh/disable_unstable

disable build with unstable API by default

CMakeLists.txt

@@ -29,7 +29,7 @@ enable_testing()
 declare_cache_var_true_if_vscode(ZENOHC_BUILD_IN_SOURCE_TREE "Do build inside source tree")
 declare_cache_var(ZENOHC_BUILD_WITH_LOGGER_AUTOINIT TRUE BOOL "Enable logger-autoinit zenoh-c feature")
 declare_cache_var(ZENOHC_BUILD_WITH_SHARED_MEMORY FALSE BOOL "Enable shared-memory zenoh-c feature")
-declare_cache_var(ZENOHC_BUILD_WITH_UNSTABLE_API TRUE BOOL "Enable unstable API feature")
+declare_cache_var(ZENOHC_BUILD_WITH_UNSTABLE_API FALSE BOOL "Enable unstable API feature")
 declare_cache_var(ZENOHC_BUILD_TESTS_WITH_CXX FALSE BOOL "Use C++ compiler for building tests to check API's C++ compatibility")
 declare_cache_var(ZENOHC_CUSTOM_TARGET "" STRING "Rust target for cross compilation, 'aarch64-unknown-linux-gnu' for example")
 declare_cache_var(ZENOHC_CARGO_CHANNEL "" STRING "Cargo channel parameter. Should be '+stable', '+nightly' or empty value")