add comment about libxml2

diff --git a/symbiflow-install b/symbiflow-install
index 5b451c4f4d1e500376d93f017a5e1ce6c69453e7..d0803aac4d32e020ade5c7d80aaaf79e869b5f9b 100755 (executable)
--- a/symbiflow-install
+++ b/symbiflow-install
@@ -44,6 +44,7 @@ git clone https://github.com/SymbiFlow/python-fpga-interchange.git
 git clone https://github.com/capnproto/capnproto.git
 git clone https://github.com/capnproto/pycapnp.git
 
+# debian/10 libxml2 has an integer overflow error. blech.
 wget http://xmlsoft.org/sources/libxml2-2.9.12.tar.gz
 wget http://xmlsoft.org/sources/libxslt-1.1.34.tar.gz