npush: fix build

+1
+1
pkgs/games/npush/default.nix
··· 24 makeFlags = [ 25 "CC=${stdenv.cc.targetPrefix}c++" 26 ]; 27 28 installPhase = '' 29 runHook preInstall
··· 24 makeFlags = [ 25 "CC=${stdenv.cc.targetPrefix}c++" 26 ]; 27 + NIX_CFLAGS_COMPILE = "-Wno-error=format-security"; 28 29 installPhase = '' 30 runHook preInstall