On Wed, Jun 18, 2008 at 03:22:56PM +0200, KH KH wrote: > You can see if upstream has bumped the soname by running this > > # readelf -a /usr/lib64/libwavpack.so.1.0.1 |grep SONAME > 0x000000000000000e (SONAME) Library soname: [libwavpack.so.1] > Where the soname is libwavpack.so.1 > > On the other hand you can check if ABI has actually changed with > rpmsodiff wavpack-4.41-1.fc10 wavpack-4.50-1.fc10 > > The case where ABI breaks is when symbol are removed that might be > used by any dependent application. > (As I expect). When symbols are only added, this would mean that ABI > is preserved and the dependent application can optionally be rebuilt > to use theses new symbols (if they are somehow used within the > dependant application). I know about 2 sources of information, for C there is the libtool manual regarding library versionning, http://www.gnu.org/software/libtool/manual/html_node/Versioning.html#Versioning it isn't explicit, but can be retrieved from the guideline in http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html#Updating-version-info soname should change when symbols are removed. For C++ things seems to be more complicated, I know about this: http://techbase.kde.org/Policies/Binary_Compatibility_Issues_With_C++ -- Pat -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list