Pierre Léonard <pierre.leonard@xxxxxxxxxxxx> writes: > /home/pleonard/compiles/gcc-4.5.0/objdir/./gcc/xgcc -shared-libgcc > -B/home/pleonard/compiles/gcc-4.5.0/objdir/./gcc -nostdinc++ > -L/home/pleonard/compiles/gcc-4.5.0/objdir/i386-pc-solaris2.10/libstdc++-v3/src > -L/home/pleonard/compiles/gcc-4.5.0/objdir/i386-pc-solaris2.10/libstdc++-v3/src/.libs > -B/home/pleonard/gcc450/i386-pc-solaris2.10/bin/ > -B/home/pleonard/gcc450/i386-pc-solaris2.10/lib/ -isystem > /home/pleonard/gcc450/i386-pc-solaris2.10/include -isystem > /home/pleonard/gcc450/i386-pc-solaris2.10/sys-include -x c++-header -g > -I/usr/local/gcc/include/c++/4.4.4 -I/usr/include -I/usr/local/include > -O3 -mtune=athlon64-sse3 -m64 -masm=att > -I/home/pleonard/compiles/gcc-4.5.0/objdir/i386-pc-solaris2.10/libstdc++-v3/include/i386-pc-solaris2.10 > -I/home/pleonard/compiles/gcc-4.5.0/objdir/i386-pc-solaris2.10/libstdc++-v3/include > -I/home/pleonard/compiles/gcc-4.5.0/libstdc++-v3/libsupc++ -O2 -g > /home/pleonard/compiles/gcc-4.5.0/libstdc++-v3/include/precompiled/stdc++.h > -o i386-pc-solaris2.10/bits/stdc++.h.gch/O2g.gch You are compiling 4.5.0. Where did this option come from: -I/usr/local/gcc/include/c++/4.4.4 Is it present in your environment or on your configure line? Ian