http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52695
Bug #: 52695 Summary: libitm/config/x86/cacheline.h: '__m64' does not name a type Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libitm AssignedTo: unassig...@gcc.gnu.org ReportedBy: ncahill_...@yahoo.com While building gcc 4.7.0, libitm fails with this error: In file included from ../../../gcc-4.7.0/libitm/libitm_i.h:85:0, from ../../../gcc-4.7.0/libitm/aatree.cc:28: ../../../gcc-4.7.0/libitm/config/x86/cacheline.h:55:3: error: '__m64' does not name a type A possible fix is to add #include <x86intrin.h> to cacheline.h, which seems to be the desired intent. This was built with gcc 4.6.2, from the gcc-4.7.0.tar.bz2 as released on ftp.gnu.org. The error occured right at the end, after the bootstrap process was successful. Thank you. Neil.