When defined, the library will only use those scripts found at the directories specified by the LIBQUVI_SCRIPTS_DIR.
When defined, the library will additionally look in the colon-separated list of directories specified by the LIBQUVI_SCRIPTS_DIR environment variable.
When defined, the library will output the paths of the searched directories to the stderr.
When defined, the library will output the file names of the found scripts to stderr. The output will also indicate whether the script was accepted by the library.
When defined, scripts using the 'quvi/debug' module messaging functions will output to stderr.
Refer to the libcurl C API, or curl(1), documentation for a complete list of the supported environment variables. libquvi uses libcurl to access the Internet.