build issues

[maurelian]

solc --combined-json "abi,bin" contracts/*.sol > ./dist/contracts.json
/bin/sh: ./dist/contracts.json: No such file or directory
make: *** [all] Error 1

So I ran mkdir dist. Then;

solc --combined-json "abi,bin" contracts/*.sol > ./dist/contracts.json
contracts/SafeMath.sol:9:38: Error: Expected token LBrace got reserved keyword 'Pure'
  function mul(uint256 a, uint256 b) pure internal  returns (uint256) {
                                     ^
contracts/Sale.sol:6:1: Error: Source "contracts/Filter.sol" not found: Unknown exception in read callback.
import "./Filter.sol";