PDAL/PDAL — pull request #119 by pramsey (2013-04-03 17:33:32+00:00)
Title: Find pdal_defines.h when building out of source

I found that without this additional include directory I could do an out of source build. For reasons unclear to me, using PDAL_INCLUDE_DIR as the argument didn't work, but using PROJECT_BINARY_DIR/include did.