Hi I am using 3.3.3 configured as a sparc-sun-solaris2.6 target running on Linux. I am trying to generate a C++ compiler. Unfortunately rthe build is failing with the following output:- mkdir .libs /home/diag/X-compiler/gcc/gcc-3.3.3.g++/gcc/xgcc -shared-libgcc -B/home/diag/X-compiler/gcc/gcc-3.3.3.g++/gcc/ -nostdinc++ -L/home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/src -L/home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/src/.libs -B/usr/local.3.3.3.g++/sparc-sun-solaris2.6/bin/ -B/usr/local.3.3.3.g++/sparc-sun-solaris2.6/lib/ -isystem /usr/local.3.3.3.g++/sparc-sun-solaris2.6/include -nostdinc++ -I/home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/sparc-sun-solaris2.6 -I/home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include -I../libsupc++ -I../libmath -g -O2 -fno-implicit-templates -Wall -Wno-format -W -Wwrite-strings -fdiagnostics-show-location=once -c bitset.cc -fPIC -DPIC -o .libs/bitset.o In file included from /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/bits/locale_facets.tcc:41, from /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/locale:47, from /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/bits/ostream.tcc:37, from /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/ostream:535, from /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/bitset:58, from bitset.cc:43: /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/cmath:107: error: ` acosf' not declared /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/cmath:110: error: ` asinf' not declared /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/cmath:113: error: ` atanf' not declared /home/diag/X-compiler/gcc/gcc-3.3.3.g++/sparc-sun-solaris2.6/libstdc++-v3/include/cmath:116: error: ` etc I am configuring the X-compiler with the following :- ./configure --enable-languages=c++ --prefix=/usr/local.3.3.3.g++ --target=sparc-sun-solaris2.6 --with-headers=/home/diag/X-compiler/gcc/SOL2.6_sparc5/include/usr/include --with-libs=/home/diag/X-compiler/gcc/SOL2.6_sparc5/libs/usr/lib I copied the relavant libs & includes from the target machine. Has anyone got any ideas or suggestions as to what I'm doing wrong? Thanks for you help Phil