[cffi-devel] Grovel default search path for include files

System-installed header files sometimes are in different places depending on the OS and method of installation. In particular, the file ffi.h that FSBV (http://repo.or.cz/w/fsbv.git) uses from libffi seems to be in different places on OS X depending on how it was installed (Apple native, Mac ports, etc.). Not being a user of OS X, it is difficult for me to know all the possible locations where this file might end up. Is it possible to specify that the groveler should "search system-standard locations" for the header files specified in include forms, analogous to load-foreign-library knowing where to look for system libraries, and have it find the file based on its knowledge of the places it might be for the current OS? Thank you. Liam