[OS X TeX] Biber

koch at math.uoregon.edu koch at math.uoregon.edu
Tue Oct 20 20:13:27 CEST 2020


I looked briefly at the TeXShop code. TeXShop calls TeX using the NSTask class in Cocoa. Various items can be set before calling a task, and one is a dictionary called the "environment". This is setup by TeXShop by first calling

	 [[NSProessInfo processInfo] environment]

This call gets the environment of the currently running task, and therefore the environment for TeXShop itself. One of the items in this environment dictionary is  ``PATH''. TeXShop modifies this environment for the task it is about to call by appending two items to the path:

	1) the path for TeX Live

	2) the path for ghostscript

Both of these paths can be set in TeXShop Preferences, and by default they are

	1) /Library/TeX/texbin

	2) /usr/local/bin

So tasks know about /Library/TeX/texbin, but NOT because shells know this value, and not because /etc/paths.d knows it, but instead because TeXShop set it directly.

Dick Koch

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