Some gcc test results contain binary attachment: http://gcc.gnu.org/ml/gcc-testresults/2009-07/msg00830.html
The problem is "^M?" in === libffi tests === Running target unix/-m32 XPASS: libffi.call/cls_dbls_struct.c -O0 -W -Wall output pattern test, 1.0 2.0^M? XPASS: libffi.call/cls_dbls_struct.c -O2 output pattern test, 1.0 2.0^M? XPASS: libffi.call/cls_dbls_struct.c -O3 output pattern test, 1.0 2.0^M? XPASS: libffi.call/cls_dbls_struct.c -Os output pattern test, 1.0 2.0^M? XPASS: libffi.call/cls_dbls_struct.c -O2 -fomit-frame-pointer output pattern test, 1.0 2.0^M? === libffi Summary for unix/-m32 === They come from /* { dg-output "1.0 2.0\n" { xfail x86_64-*-linux-* } } */ in libffi.call/cls_dbls_struct.c. -- Summary: ^M? in testsuite log leads to binary attachment Product: gcc Version: lto Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40704