I just tried to compile package libgeos_c1-3.1.1 with the GNU C++ compiler version 4.5 snapshot 20091126 and the compiler said
AbstractSTRtree.cpp: In member function 'geos::index::strtree::ItemsList* geos::index::strtree::AbstractSTRtree::itemsTree(geos::index::strtree::AbstractNode*)': AbstractSTRtree.cpp:365:1: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flags -O2 -funroll-loops required. Here is valgrind helping out with a stack backtrace ==896== Invalid read of size 8 ==896== at 0x6A2309: cancel_loop_tree (cfgloop.c:1307) ==896== by 0x6A231C: cancel_loop_tree (cfgloop.c:1308) ==896== by 0x6A51DE: remove_path (cfgloopmanip.c:352) ==896== by 0x81A1C3: unroll_and_peel_loops (loop-unroll.c:513) ==896== by 0x80F416: rtl_unroll_and_peel_loops (loop-init.c:338) ==896== by 0x84A51B: execute_one_pass (passes.c:1522) ==896== by 0x84A7C4: execute_pass_list (passes.c:1577) ==896== by 0x84A7D6: execute_pass_list (passes.c:1578) ==896== by 0x84A7D6: execute_pass_list (passes.c:1578) ==896== by 0x943460: tree_rest_of_compilation (tree-optimize.c:411) ==896== by 0xAC61FB: cgraph_expand_function (cgraphunit.c:1178) ==896== by 0xAC80A4: cgraph_optimize (cgraphunit.c:1245) ==896== Address 0xa5a5a5a5a5a5a5d5 is not stack'd, malloc'd or (recently) free'd ==896== -- Summary: cancel_loop_tree: bad read causes ice Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42229
