Build Pnacl in hermetic cygwin Use the same cygwin used for the GNU toolchain. This gets us a standard environment that is kept updated on the bots (see cygwin_env.bat).
Build Pnacl in hermetic cygwin
Use the same cygwin used for the GNU toolchain. This gets us a standard environment that is kept updated on the bots (see cygwin_env.bat).

R=jvoung@chromium.org,robertm@chromium.org,sehr@chromium.org
BUG= http://code.google.com/p/nativeclient/issues/detail?id=2918

Review URL: https://chromiumcodereview.appspot.com/10837191

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@9429 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client