Clang - path of a header

   suppose I have a C hader name/path in the shape that is used in source codes, such as:
<sys/time.h> , <mysql/mysql.h> or something similar (with or without the angle brackets, that doesn't matter).

Can I somehow use clang to figure out the actual path to the file for me?
I reckon preprocessor could be used for that maybe, but I'm not sure how to exactly tell clang to do it...

Thanks and sorry if that's a silly question
Vojtech Kral