./configure --build=i486-linux --prefix=/usr --local-prefix=/usr/local \
  --gxx-include-dir=/usr/include/g++
#make -k CC=gcc CFLAGS=-O2 LDFLAGS=-s LANGUAGES="c c++ proto objective-c"
#make objc-runtime CC=gcc CFLAGS=-O2 LDFLAGS=-s
make -k CC=gcc CFLAGS=-O2 LDFLAGS=-s LANGUAGES="c c++ proto"