build failure of 4.2.0 on Gentoo Linux

[Perrin Meyer]

Hi,

When I try to build the new 4.2.0 release on Gentoo x86_64, I get an error

>> /home/perrin/gcc-4.2.0/gcc-4.2.0/configure --prefix=/home/perrin/gcc-4.2.0/  
>> make -j 8

my Gentoo version is:

Linux version 2.6.19-gentoo-r5 (root@crunch8) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #1 SMP PREEMPT Wed Mar 14 17:02:23 PDT 2007

error is [...]

if [ ! -d "./x86_64-unknown-linux-gnu/bits/extc++.h.gch" ]; then \
          mkdir -p ./x86_64-unknown-linux-gnu/bits/extc++.h.gch; \
        fi; \
        /home/perrin/gcc-4.2.0/object/./gcc/xgcc -shared-libgcc -B/home/perrin/gcc-4.2.0/object/./gcc -nostdinc++ -L/home/perrin/gcc-4.2.0/object/x86_64-unknown-linux-gnu/libstdc++-v3/src -L/home/perrin/gcc-4.2.0/object/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/perrin/gcc-4.2.0//x86_64-unknown-linux-gnu/bin/ -B/home/perrin/gcc-4.2.0//x86_64-unknown-linux-gnu/lib/ -isystem /home/perrin/gcc-4.2.0//x86_64-unknown-linux-gnu/include -isystem /home/perrin/gcc-4.2.0//x86_64-unknown-linux-gnu/sys-include -Winvalid-pch -Wno-deprecated -x c++-header -g -O2  -D_GNU_SOURCE -I/home/perrin/gcc-4.2.0/object/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/home/perrin/gcc-4.2.0/object/x86_64-unknown-linux-gnu/libstdc++-v3/include -I/home/perrin/gcc-4.2.0/gcc-4.2.0/libstdc++-v3/libsupc++ -O2 -g /home/perrin/gcc-4.2.0/gcc-4.2.0/libstdc++-v3/include/precompiled/extc++.h -o x86_64-unknown-linux-gnu/bits/extc++.h.gch/O2g.gch
touch ./x86_64-unknown-linux-gnu/bits/extc++.h
make[2]: Leaving directory `/home/perrin/gcc-4.2.0/object/x86_64-unknown-linux-gnu/libstdc++-v3/include'
make[1]: Leaving directory `/home/perrin/gcc-4.2.0/object'
make: *** [all] Error 2