bootstrap failure on ia64

[Richard Guenther]

mainline failed to bootstrap the last three days, where today the 
failure was:

checking for /net/natasa/scratch/natasa/rguenth/gcc-obj-3.5/gcc/xgcc 
option to produce PIC... -fPIC -DPIC
checking if /net/natasa/scratch/natasa/rguenth/gcc-obj-3.5/gcc/xgcc PIC 
flag -fPIC -DPIC works... no
checking if /net/natasa/scratch/natasa/rguenth/gcc-obj-3.5/gcc/xgcc 
static flag -static works... no
finding the maximum length of command line arguments... (cached) 196609
checking if /net/natasa/scratch/natasa/rguenth/gcc-obj-3.5/gcc/xgcc 
supports -c -o file.o... (cached) yes
checking if /net/natasa/scratch/natasa/rguenth/gcc-obj-3.5/gcc/xgcc 
supports -fno-rtti -fno-exceptions ... no
checking whether the linker (ld) supports shared libraries...
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking dynamic linker characteristics... GNU/Linux ld.so
checking command to parse nm output... failed
checking if libtool supports shared libraries... no
checking whether to build shared libraries... no
checking whether to build static libraries... yes
appending configuration tag "CXX" to libtool
checking for exception model to use... configure: error: unable to 
detect exception model
make[1]: *** [configure-target-libstdc++-v3] Error 1
make[1]: Leaving directory `/net/natasa/scratch/natasa/rguenth/gcc-obj-3.5'
make: *** [bootstrap] Error 2


interesting failure.

Richard.