Clear PWD so buildbot works

diff --git a/win-build.cmd b/win-build.cmd
index 434b22d..261b727 100644 (file)
--- a/win-build.cmd
+++ b/win-build.cmd
@@ -1,2 +1,8 @@
+REM Buildbot helpfully sets PWD to be the current working directory. In MS-DOS style.
+REM We'd prefer to actually be able to use the pwd shell command, thank you very much.
+set PWD=
+
+REM Setup msvc build environment
 call setenv /x86 /debug
+
 sh ./win-build
\ No newline at end of file