Fix binary generation and prepare for 0.2.1 release

Change-Id: Ifd34ded0147a2848c24f5a70cfcb7081358fe997
diff --git a/make-deps.sh b/make-deps.sh
index 9378aca..4cb7600 100755
--- a/make-deps.sh
+++ b/make-deps.sh
@@ -1,5 +1,9 @@
 #!/usr/bin/env bash
 
+# Avoid dependency on non-standard tools
+export PATH=/usr/bin:/bin:/usr/sbin:/sbin
+export PKGCONFIG=/usr/local/bin/pkg-config
+
 NDN_CXX_COMMIT=${NDN_CXX_COMMIT:-ndn-cxx-0.5.1}
 NFD_COMMIT=${NFD_COMMIT:-NFD-0.5.1}
 NDN_TOOLS_COMMIT=${NDN_TOOLS_COMMIT:-ndn-tools-0.4}