Yanz mini Shell

case $1 in
    --prefix=*)
      prefix=$optarg
      if test $exec_prefix_set = no ; then
        exec_prefix=$optarg
      fi
      ;;
    --prefix)
      echo $prefix
      ;;
    --exec-prefix=*)
      exec_prefix=$optarg
      exec_prefix_set=yes
      ;;
    --exec-prefix)
      echo $exec_prefix
      ;;
    --version)
      echo 8.42
      ;;
    --cflags)
      if test /usr/include != /usr/include ; then
        includes=-I/usr/include
      fi
      echo $includes 
      ;;
    --cflags-posix)
      if test yes = yes ; then
        if test /usr/include != /usr/include ; then
          includes=-I/usr/include
        fi
        echo $includes 
      else
        echo "${usage}" 1>&2
      fi
      ;;
    --libs-posix)
      if test yes = yes ; then
        echo $libS$libR -lpcreposix -lpcre
      else
        echo "${usage}" 1>&2
      fi
      ;;
    --libs)
      if test yes = yes ; then
        echo $libS$libR -lpcre
      else
        echo "${usage}" 1>&2
      fi
      ;;
    --libs16)
      if test yes = yes ; then
        echo $libS$libR -lpcre16
      else
        echo "${usage}" 1>&2
      fi
      ;;
    --libs32)
      if test yes = yes ; then
        echo $libS$libR -lpcre32
      else
        echo "${usage}" 1>&2
      fi
      ;;
    --libs-cpp)
      if test yes = yes ; then
        echo $libS$libR -lpcrecpp -lpcre
      else
        echo "${usage}" 1>&2
      fi
      ;;
    *)
      echo "${usage}" 1>&2
      exit 1
      ;;
  esac
  shift
done

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