Hi, On Tue, Dec 16, 2008 at 12:18:55PM -0500, Robert P. J. Day wrote: > > i don't have access to a test system at the moment, so i'll > embarrass myself by just asking: > > when i'm writing a loadable module to be built out-of-tree, how do i > properly configure the header file search path so i can include > locally-written header files in my module? > > say i have a module source file that needs to include the relative > header file "../include/header.h". i'm fairly sure i can just write: > > #include "../include/header.h" > > and that will work with no additional configuration. (this suggests > that the kernel module build process automatically adds the source > directory to its header file search path, correct? otherwise, the > above couldn't possibly work.) > > but what if i want to just say: > > #include "header.h" > > what's the proper way to invoke the kernel source tree Makefile to add > the header file directory to the header file search path? thanks. i > realize this is a simple question, i just don't have access to my work > system at the moment to check it myself. I believe the standard (recommended) way of doing this is using the EXTRA_CFLAGS variable in your makefile. Adding: EXTRA_CFLAGS := -I../include should be enough for your code to work. Take a look at Documentation/kbuild/modules.txt file ;) -- Luis Henriques -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
