Hi On Mon, Mar 16, 2015 at 5:22 PM, Jim Davis <[email protected]> wrote: > Building with the attached random configuration file, > > In file included from ./include/uapi/linux/kdbus.h:12:0, > from samples/kdbus/kdbus-api.h:5, > from samples/kdbus/kdbus-workers.c:79: > ./include/uapi/linux/types.h:9:2: warning: #warning "Attempt to use > kernel headers from user space, see > http://kernelnewbies.org/KernelHeaders"; [-Wcpp] > #warning "Attempt to use kernel headers from user space, see > http://kernelnewbies.org/KernelHeaders"; > ^ > In file included from ./include/uapi/linux/posix_types.h:4:0, > from ./include/uapi/linux/types.h:13, > from ./include/uapi/linux/kdbus.h:12, > from samples/kdbus/kdbus-api.h:5, > from samples/kdbus/kdbus-workers.c:79: > ./include/uapi/linux/stddef.h:1:28: fatal error: linux/compiler.h: No > such file or directory > #include <linux/compiler.h> > ^ > compilation terminated. > scripts/Makefile.host:91: recipe for target 'samples/kdbus/kdbus-workers' > failed > make[2]: *** [samples/kdbus/kdbus-workers] Error 1
If you build the samples in ./samples/, you need up-to-date kernel headers. The kdbus samples rely on linux/kdbus.h to be available. A simple "make headers_install" will copy the headers to the local directory ./usr/ in your kernel tree. This is the preferred location over /usr/include by all tools in the kernel tree. That is, run "make headers_install" once and your local tree will build fine. Once your kernel-headers in /usr/include are up-to-date, it will work just out-of-the-box again. In other words, if CONFIG_SAMPLES is enabled, you need the sanitized kernel headers in your include path. Thanks David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
