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 \
  i586-pc-sco3.2v5.0
