El buildworld de FreeBSD 9.1 falla en libclangsema

Acabo de pasar y actualicé una docena de máquinas de 9.0-RELEASE a 9.1-RELEASE y la última está en process de buildworld durante buildworld :

 c++ -O2 -pipe -I/usr/src/lib/clang/libclangsema/../../../contrib/llvm/include -I/usr/src/lib/clang/libclangsema/../../../contrib/llvm/tools/clang/include -I/usr/src/lib/clang/libclangsema/../../../contrib/llvm/tools/clang/lib/Sema -I. -I/usr/src/lib/clang/libclangsema/../../../contrib/llvm/../../lib/clang/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DLLVM_DEFAULT_TARGET_TRIPLE=\"i386-unknown-freebsd9.0\" -DDEFAULT_SYSROOT=\"\" -fstack-protector -fno-exceptions -fno-rtti -c /usr/src/lib/clang/libclangsema/../../../contrib/llvm/tools/clang/lib/Sema/SemaExpr.cpp -o SemaExpr.o {standard input}: Assembler messages: {standard input}:108560: Warning: end of file not at end of a line; newline inserted c++: Internal error: Killed: 9 (program cc1plus) Please submit a full bug report. See <URL:http://gcc.gnu.org/bugs.html> for instructions. *** Error code 1 Stop in /usr/src/lib/clang/libclangsema. *** Error code 1 Stop in /usr/src/lib/clang. *** Error code 1 Stop in /usr/src/lib. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src. [Exit 1 ] 

Cosas que he intentado:

 rm -rf /usr/src/* && cvsup rm -rf /usr/obj/* 

/etc/make.conf es muy benigno en este punto con la mayoría de las optimizaciones desactivadas:

 # Optimize when possible based on CPU #CPUTYPE?= pentium4 # Set optimization and use pipes to speed up compiles #CFLAGS= -O -pipe NO_CPU_CFLAGS= true # Don't add -march=<cpu> to CFLAGS automatically NO_CPU_COPTFLAGS= true # Don't add -march=<cpu> to COPTFLAGS automatically # Set kernel compile with special options. # CFLAGS is not applicable to kernel builds. #COPTFLAGS= -O -pipe 

Me siento un poco tonto en este punto; entonces cualquier sugerencia es bienvenida.

Gracias por tu time.