cmake: Fix clang-tidy CI task

Author: hebasto

src/CMakeLists.txt

@@ -67,8 +67,9 @@ foreach(config IN LISTS CMAKE_BUILD_TYPE CMAKE_CONFIGURATION_TYPES)
   string(TOUPPER "${config}" config)
   set(CMAKE_C_FLAGS_${config} "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
 endforeach()
+set(CMAKE_EXPORT_COMPILE_COMMANDS OFF)
 add_subdirectory(secp256k1)
-set_target_properties(secp256k1 PROPERTIES EXPORT_COMPILE_COMMANDS OFF)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 string(APPEND CMAKE_C_COMPILE_OBJECT " ${APPEND_CPPFLAGS} ${APPEND_CFLAGS}")
 
 # Stable, backwards-compatible consensus functionality.