Already installed: $rpm -qa glibc\* glibc-debuginfo-2.19-16.22.2.x86_64 glibc-extra-2.19-16.22.2.x86_64 glibc-2.19-16.22.2.x86_64 glibc-locale-2.19-16.22.2.x86_64 glibc-devel-2.19-16.22.2.x86_64 glibc-32bit-2.19-16.22.2.x86_64 No idea why gdb can't find it.