From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shanks <mshanks79@yahoo.co.in>
Subject: Re: problem with <asm/semaphore.h>
Date: Tue, 4 Jun 2002 04:44:21 -0700 (PDT)
Sender: linux-c-programming-owner@vger.kernel.org
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To: Hossein Mobahi <hmobahi@yahoo.com>, linux-kernel@vger.kernel.org
Cc: linux-c-programming@vger.kernel.org

Hi Hossein,

If you look inside <asm/semaphore.h> you will see that
the definition of struct semaphore is within a 
conditional #ifdef __KERNEL__

Hence __KERNEL__ needs to be defined for this code to
compile.
Try compiling like this
$> gcc -D__KERNEL__ file.c

Regards,
Shanks

--- Hossein Mobahi <hmobahi@yahoo.com> wrote:
> Hi
> I compiled the following code with gcc under Redhat
> 7.2 :
> #include <asm/semaphore.h>
> main()
> {
>     struct semaphore sum;
> }
> 
> It doesn't compile, saying "storage size of `sem'
> isn't known".
> 
> Sincerely
> --Hossein Mobahi

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