Hi, Martin. The [$KERNEL_ROOT/include/uapi/linux/stddef.h] you are talking about is just a few lines: | #include <linux/compiler_types.h> | | #ifndef __always_inline | #define __always_inline inline | #endif it turns into | #ifndef __always_inline | #define __always_inline inline | #endif after [make headers_install] installs it into [/usr/include/linux/stddef.h]. Userspace applications shall not use kernel tree directly. Regards, Konstantin. Martin Kaiser, 25 jul 2010 00:20 msk:
I called gcc with -I $KERNEL_ROOT/include/uapi. This is the chain of files that were included.
my_app.c $GCC_SYSROOT/usr/include/netinet/in.h ...
and the error is
$KERNEL_ROOT/include/uapi/linux/stddef.h:2:34: fatal error: linux/compiler_types.h: No such file or directory #include <linux/compiler_types.h>
Best regards, Martin