NM=gnm CC=gcc CFLAGS="-O6 -march=i586 -mcpu=i686 -fomit-frame-pointer" CXX=g++ CXXFLAGS="-O6 -march=i586 -mcpu=i686 -fomit-frame-pointer" ./configure \
  --prefix=/usr/gnu \
  --enable-shared \
  --x-includes=/usr/include \
  --x-libraries=/usr/lib \
  i586-pc-sco3.2v5.0
