https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64081
--- Comment #31 from Aldy Hernandez <aldyh at gcc dot gnu.org> --- (In reply to David Edelsohn from comment #30) > .../src/src/configure --disable-werror --with-gmp=/opt/cfarm > --with-libiconv-prefix=/opt/cfarm --disable-libstdcxx-pch > --with-included-gettext > > By the way, it's a lot faster if the src and build directories are in > /scratch. It's a ramdisk for transient, temporary files, so don't leave > things there permanently. Helps a little, but I now get the following during link: /scratch/aldyh/bld/bisect/./prev-gcc/xg++ ... ... c-family/c-ada-spec.o c-family/c-cilkplus.o c-family/array-notation-common.o c-family/cilk.o c-family/c-ubsan.o default-c.o rs6000-c.o cc1plus-checksum.o libbackend.a main.o tree-browser.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a ./../intl/libintl.a /opt/cfarm/lib/libiconv.a ../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -L/opt/cfarm/lib -lmpc -lmpfr -lgmp -L../zlib -lz ld: 0711-380 STABSTRING ERROR: Symbol table entry 1152, object file c/c-lang.o Length of stabstring in .debug section is invalid. The stabstring is being deleted. ld: 0711-380 STABSTRING ERROR: Symbol table entry 848, object file c-family/stub-objc.o Length of stabstring in .debug section is invalid. The stabstring is being deleted. ld: 0711-380 STABSTRING ERROR: Symbol table entry 1172, object file attribs.o Length of stabstring in .debug section is invalid. The stabstring is being deleted. ld: 0711-380 STABSTRING ERROR: Symbol table entry 870, object file c/c-errors.o Length of stabstring in .debug section is invalid. The stabstring is being deleted. ld: 0711-380 STABSTRING ERROR: Symbol table entry 5636, object file c/c-decl.o Length of stabstring in .debug section is invalid. The stabstring is being deleted. etc etc etc.