$NetBSD: README.Cygwin,v 1.1 2013/02/22 13:59:47 obache Exp $ Please read the general README file as well. ========================================================================== pkgsrc supports both gcc (GNU Compiler Collection) and clang (C Language Family Frontend for LLVM). gcc is the default. To bootstrap using clang: env CC=clang ./bootstrap --compiler=clang ========================================================================== The su(1) command has been in Cygwin distribution, but it has never worked. Unless you bootstrap pkgsrc with the --unprivileged option, workaround is: * Right click "Cygwin Terminal" in your Start Menu, then pick "Run as administrator".