This patch: http://gcc.gnu.org/ml/gcc-patches/2005-09/msg01279.html
breaks ia64. I got /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c: In function `get_attr_length': /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c:454: error: `insn_default_length' undeclared (first use in this function) /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c:454: error: (Each undeclared identifier is reported only once /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c:454: error: for each function it appears in.) /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c: In function `get_attr_min_length': /net/gnu-13/export/gnu/src/gcc/gcc/gcc/final.c:462: error: `insn_min_length' undeclared (first use in this function) -- Summary: [4.1 Regression]: Gcc failed to build on ia64 Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org CC: gcc-bugs at gcc dot gnu dot org,joern dot rennecke at st dot com GCC build triplet: ia64-unknown-linux-gnu GCC host triplet: ia64-unknown-linux-gnu GCC target triplet: ia64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23991