https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68010
--- Comment #1 from ghoort1 at gmail dot com --- At GCC-5.1.1 /home/ghoort/projects/nfg/NFserver/StructDecoder.h:67:2: internal compiler error: in tree_to_shwi, at tree.h:3856 } ^ 0x806864 tree_to_shwi(tree_node const*) ../../src/gcc/tree.h:3856 0x806864 add_data_member_location_attribute ../../src/gcc/dwarf2out.c:15327 0x8137ce gen_inheritance_die ../../src/gcc/dwarf2out.c:19886 0x8137ce gen_member_die ../../src/gcc/dwarf2out.c:19938 0x8137ce gen_struct_or_union_type_die ../../src/gcc/dwarf2out.c:20039 0x81425c gen_tagged_type_die ../../src/gcc/dwarf2out.c:20228 0x8145c1 gen_type_die_with_usage ../../src/gcc/dwarf2out.c:20377 0x815881 gen_type_die ../../src/gcc/dwarf2out.c:20430 0x815881 modified_type_die ../../src/gcc/dwarf2out.c:10817 0x815fff force_type_die ../../src/gcc/dwarf2out.c:20729 0x8161db get_context_die ../../src/gcc/dwarf2out.c:20644 0x8161db force_decl_die ../../src/gcc/dwarf2out.c:20663 0x81611a get_context_die ../../src/gcc/dwarf2out.c:20647 0x81611a force_decl_die ../../src/gcc/dwarf2out.c:20663 0x825853 dwarf2out_imported_module_or_decl_1 ../../src/gcc/dwarf2out.c:21157 0x825d07 process_scope_var ../../src/gcc/dwarf2out.c:20540 0x825da7 decls_for_scope ../../src/gcc/dwarf2out.c:20567 0x825f58 gen_lexical_block_die ../../src/gcc/dwarf2out.c:19487 0x825f58 gen_block_die ../../src/gcc/dwarf2out.c:20514 0x825e0a decls_for_scope ../../src/gcc/dwarf2out.c:20581 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions. CMakeFiles/NFServer.dir/build.make:445: recipe for target 'CMakeFiles/NFServer.dir/home/ghoort/projects/nfg/NFserver/nfg_parser.cpp.o' failed