setup: add doc explaining why we set zip_safe=False

diff --git a/setup.cfg b/setup.cfg
index 03f746b3a2cf08d0c378299fdff9bb55699e59a3..b839a10038c913fcbd923633461534e585cfecf6 100644 (file)
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,4 +1,9 @@
 [easy_install]
+# allmydata-tahoe actually does work at least as well as any package
+# works when zipped, but zipping eggs causes various problems
+# (http://bugs.python.org/setuptools/issue33 ), and generally makes it
+# harder for people to get at the source code, and doesn't actually
+# provide any benefits that I am aware of.
 zip_ok=False
 
 # Tahoe depends upon several libraries (foolscap, twisted, pycryptopp,