I followed this tutorial and came across this screen shot:

apparently there was a way to make the Xcode project file relative to some user variable env in earlier versions of Xcode (you get there by selecting the project file and then clicking cmd + i)
I could not find a way to do this in Xcode 4.5 (the closest I could get to this this post, but the instructions do not work in Xcode 4.5)
ideas?
update : I tried to change the "header search paths" in the build settings .. and set "always search for user paths" to "yes", as suggested here .., but then my project is always successfully built, if I try to do this, even if I put a nonexistent path in this field.
abbood Jan 16 '13 at 9:36
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