this defaults to the system-installed path, and the plugins installed in the
user's home directory
.TP
+\fBORC_CODE\fR
+Useful Orc environment variable. Set ORC_CODE=debug to enable debuggers
+such as gdb to create useful backtraces from Orc-generated code. Set
+ORC_CODE=backup or ORC_CODE=emulate if you suspect Orc's SIMD code
+generator is producing incorrect code. (Quite a few important
+GStreamer plugins like videotestsrc, audioconvert or audioresample use Orc).
+.TP
\fBG_DEBUG\fR
Useful GLib environment variable. Set G_DEBUG=fatal_warnings to make
GStreamer programs abort when a critical warning such as an assertion failure