Trying to upgrade from 9.3-Stable to 10.1-Stable

[Willem Jan Withagen]

Hi,

Trying to compile world for upgrading I run into:
(single threaded make)

===> lib/clang/libclanganalysis (depend)
clang-tblgen -gen-clang-attr-list  -I
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include
-d AttrList.inc.d -o AttrList.inc.h
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include/clang/Basic/Attr.td
clang-tblgen -gen-clang-attr-classes  -I
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include
-d Attrs.inc.d -o Attrs.inc.h
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include/clang/Basic/Attr.td
Stack dump:
0.      Program arguments: clang-tblgen -gen-clang-attr-classes -I
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include
-d Attrs.inc.d -o Attrs.inc.h
/usr/src10/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/include/clang/Basic/Attr.td
*** Signal 11

Is this because the 9.3 toolchain doesn't like 10.1...??

Upgrade is on a atom running:
9.3-STABLE FreeBSD 9.3-STABLE #56 r269952: Thu Aug 14 07:00:37 CEST 2014

Any suggestions are welcome.
--WjW