plots too small to render margin decorations (i.e. axis and tick labels) now render without them;
plots in frames now initially render with full detail
When uninitialized, turtles was giving a poor internal error.
Now it should tell the user to initialize. Also, added a note
in the docs about initialization.
Previously, sandbox creation used `gui?', which is the result of
`gui-available?' at the time that `racket/sandbox' is instanited.
This change makes sandbox behavior less sensitive tothe order in
which modules `require'd into a program are intiantiated.
The change depends on a new `sandbox-make-namespace' default
function for `sandbox-namespace-specs'. The new function uses
either `make-base-namespace' or `make-gui-namespace', depending
on whether the GUI library is available at that point.
A new `sandbox-gui-enabled' parameter can disable use of the
GUI library even if it is available.
The `gui?' binding is still exported for backward compatibility,
but it shouldn't be used anymore.
There are many SSL_() functions that produce return codes with more
information from SLL_get_error() and/or ERR_get_error(). Those need
to be grouped in an atomic section to ensure thread safety at the
level of Racket threads.
Using the functions on a port triggers renegotiation of the
connection, which s useful for cases such as a web server that
requires a certificate only for certain paths. This functionality
also allows better testing of the SSL library.
Read and write actions on an SSL port can trigger internal write
and read actions (i.e., the opposite direction). On the read side,
write pumping was performed too early before returning a "wait
for new input" event; SSL operations between the pumping and
return could trigger the need for pumping, but it never happened
because the socket was waiting for new input before taking any
new actions.
The problem would shows up specifically when Apache renegotiates
a connection to demand certificates from a client after first
determining the target of the request (i.e., when a certificate
is required ony for specific locations on the server).
Thenks to Sergey Pinaev, Timur Sufiev, and Neil Van Dyke.
them and use that to order 'raco setup'
The dep-list.rkt file contains code that reads .dep files
and computes the topological sort; this result is expected
to be copied over into setup-unit.rkt
