If you install libgcj_bc from GCC 4.4 and try to link with GCC 4.3 you get gcj CaCerts.java --main=CaCerts -o catest libgcj failure: gcj linkage error. Incorrect library ABI version detected. Aborting.
gcj: Internal error: Aborted (program ecj1) Please submit a full bug report. See <http://bugs.opensuse.org/> for instructions. -- Summary: libgcj_bc for 4.3 and 4.4 are binary incompatible but have the same SONAME Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: ABI Severity: critical Priority: P3 Component: libgcj AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38396
