The x86_64-linux-gnu bi-arch compiler installs the 64-Bit version of libiberty.a in /usr/lib/ (destroying any perfectly good 32-Bit version) and possibly the 32-Bit version in /usr/lib/32/.
If these libraries should be installed at all (which I doubt), then in /usr/lib64/ and /usr/lib/, i.e., the make target "install_to_libdir" should install the library in "$(libdir)$(MULTIOSDIR)" instead of "$(libdir)$(MULTISUBDIR)". I'm not sure where to install the headers (if at all). -- Summary: libiberty.a is installed in very bad locations Product: gcc Version: 4.1.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: peb at mppmu dot mpg dot de GCC build triplet: x86_64-linux-gnu GCC host triplet: x86_64-linux-gnu GCC target triplet: x86_64-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30859