Check if running R on Windows using Wine
is_wine()
A logical
Wine Developer FAQ, How can I detect Wine?, https://wiki.winehq.org/Developer_FAQ#How_can_I_detect_Wine.3F
Jeff Zaroyko, Detecting Wine, Wine Devel mailing list, 2008-09-29, https://www.winehq.org/pipermail/wine-devel/2008-September/069387.html