Rodrigo I'm getting lots of errors from ./configure, see below. Seems to be something to do with your toolchain stuff? I'm lost. Should I worry? If not, could they be made to look less alarming somehow? Simon Entering: checking for C compiler checking for -Qunused-arguments support... Entering: checking for -Qunused-arguments support Execute: /usr/bin/gcc -Qunused-arguments -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c Command failed: /usr/bin/gcc -Qunused-arguments -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c Exited with code 1 found for -Qunused-arguments support: Cc {ccProgram = Program {prgPath = "/usr/bin/gcc", prgFlags = []}} checking whether Cc supports --target... Entering: checking whether Cc supports --target Execute: /usr/bin/gcc -Werror --target=x86_64-unknown-linux -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c Command failed: /usr/bin/gcc -Werror --target=x86_64-unknown-linux -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c Exited with code 1 found whether Cc supports --target: Cc {ccProgram = Program {prgPath = "/usr/bin/gcc", prgFlags = []}} checking whether Cc works... Entering: checking whether Cc works Execute: /usr/bin/gcc -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c found whether Cc works: () checking for C99 support... Entering: checking for C99 support Execute: /usr/bin/gcc -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.c found for C99 support: () checking whether cc supports extra via-c flags... Entering: checking whether cc supports extra via-c flags Execute: /usr/bin/gcc -c -fwrapv -fno-builtin -Werror -x c -o /tmp/tmp0/test.o /tmp/tmp0/test.c found whether cc supports extra via-c flags: () found for C compiler: Cc {ccProgram = Program {prgPath = "/usr/bin/gcc", prgFlags = []}} checking for C++ compiler... Entering: checking for C++ compiler x86_64-unknown-linux-g++ not found in search path x86_64-unknown-linux-clang++ not found in search path x86_64-unknown-linux-c++ not found in search path checking whether C++ supports --target... Entering: checking whether C++ supports --target Execute: /usr/bin/g++ -Werror --target=x86_64-unknown-linux -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.cpp Command failed: /usr/bin/g++ -Werror --target=x86_64-unknown-linux -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.cpp Exited with code 1 found whether C++ supports --target: Cxx {cxxProgram = Program {prgPath = "/usr/bin/g++", prgFlags = []}} Execute: /usr/bin/g++ -c -o /tmp/tmp0/test.o /tmp/tmp0/test.o.cpp found for C++ compiler: Cxx {cxxProgram = Program {prgPath = "/usr/bin/g++", prgFlags = []}} checking for C preprocessor...