On Wed, Dec 20, 2006 at 09:05:42AM -0800, Ian Lance Taylor wrote: > 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. Thanks, this is exactly what I wanted to know! Bob Rossi