Bob Rossi <bob_rossi@xxxxxxx> writes: > Does anyone know if gcc has documented it's abi compatibility between > minor releases? For example, is 4.1.1 and 4.1.2 guaranteed (besides > bugs) to have the same abi? I don't know whether this is documented anywhere. In general, the C language ABI never changes. The C++ language ABI is controlled by the -fabi-version=N option. The default version of the C++ language ABI never changes in a minor release (e.g., 4.1.2), but it may change in a major release (e.g., 4.1). In some cases there will be an ABI change for obscure cases of a specific target. These will be noted in the list of changes for the release in which they occur. These changes are normally never made in a minor release. Ian
