Building targets in manual order is deprecated - check "Parallelize build for command-line builds" in the project editor, or set DISABLE_MANUAL_TARGET_ORDER_BUILD_WARNING in any of the targets in the current build to suppress this warning

adding 'int' to a string does not append to the string [-Wstring-plus-int]

a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]