Missing Header search paths (x86 Pixel on PC)

I’m a little surprised to find this - I added a Linux Export to the Standard OpenGl Demo (not the main Demo, but the standone one) - and was surprised to find neither Juce modules (which is define in the Global Search Path settings section) nor /usr/X11R6/lib wasn’t already included pre-defined in the project settings
I don’t recall having this problem before