qr{^./tmp/[a-zA-Z0-9]*.o:.*: undefined reference to `.*'\n$}o,
qr{^./tmp/[a-zA-Z0-9]*.s:\d+: Error: syntax error; found `.' but expected `,'\n$}o,
qr{^./tmp/[a-zA-Z0-9]*.s:\d+: Error: junk at end of line: `.(?:plt|local)'\n$}o,
+qr{^./usr/bin/ld: /tmp/[a-zA-Z0-9]*.o\(\.text\+0x[0-9a-f]+\): unresolvable R_PPC64_REL24 relocation against symbol `\S+'\n$}o,
qr{^.# of }o,
qr{^./home/}o,
qr{^.PASS: gdb.arch/i386-biarch-core.exp: core-file /home/.*/i386-biarch-core.core\n$}o,