C: include files problem

hello,

i have been trying to get some basic code working.
its some piece of userspace code that does have problems
with including the correct files when doing the preprocessing.

for example i have:

Code:

#include <linux/module.h>

on preprocessing, the standard directory is asked for that file, that is /usr/include/* for my machine.
the problem is that the files in that directory are very old, as they are left from the install when kernel 2.4.18 was
current.
i am using a 2.6 kernel now.
further on i am trying to access elements in structs for example
that only exist since 2.6 kernel series.
but as the preprocessor asks /usr/include/*, i am getting:

Code:

file.c: In function `main':
file.c:100: error: structure has no member named `core_size'

in this file.c i am trying to access an element of the struct module of the 2.6 kernels.
but as the preprocessor is referring to the old includes,
that element obviously doesnt exist.

now:
how can i update my header include files to prevent
version confusion?
or how is it possible to redirect every #include to the
current kernel source tree includes?
i tried gcc -I and -L options with the current kernel source tree includes with no success and even more errors.

thanks for your time!
threadhead

Hello!

Depending on you newer kernel installation directory, mine is always my users home, you could try to make a symlink from old source directory to new, if I have it installed in my user account home dir '/home/stratus' I could do:

Code:

[EnGlow][root][07:42:14][/usr/src][#] rm /usr/src/linux

Then, create a new symlink to the new directory containing the sources:

Code:

[EnGlow][root][07:42:14][/usr/src][#] ln -s /home/stratus/linux-2.6.3 ./linux

Which gives me:

Code:

[EnGlow][root][07:42:14][/usr/src][#] ls
2.4.22.nat.diff  linux@  linux-2.4.22/  rpm/  xfs-2.4.22/
[EnGlow][root][07:42:15][/usr/src][#] 
[EnGlow][root][07:42:15][/usr/src][#] readlink ./linux
/home/stratus/linux-2.6.3
[EnGlow][root][07:44:41][/usr/src][#]

HTH

Try using the force option combined with symlink option !!

regards,
karthik bala guru

Originally Posted by linladen

Try using the force option combined with symlink option !! :)

regards,
karthik bala guru :cool:

Ok, LOL, *DON"T* do that, 'man ln' will tell you why.

{edit}

I guess that option saves a step, removing the old symlink.

:D

i made it work another way.
just copied the newer kernel header to the old location
and made it work myself.

thanks anyway