Package: linux-libc-dev
Version: 3.2.1-1
Severity: normal
User: debian-al...@lists.debian.org
Usertags: alpha
X-Debbugs-CC: debian-al...@lists.debian.org
The simple test program:
#include <linux/net.h>
#include <sys/socket.h>
fails to compile on the Alpha arch with the following:
$ gcc -c test.c
In file included from /usr/include/alpha-linux-gnu/sys/socket.h:40:0,
from test.c:2:
/usr/include/alpha-linux-gnu/bits/socket.h:68:3: error: expected
identifier before numeric constant
It is because <linux/net.h> eventually includes
/usr/include/alpha-linux-gnu/asm/socket.h which ends with the following:
/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
* have to define SOCK_NONBLOCK to a different value here.
*/
#define SOCK_NONBLOCK 0x40000000
Then <sys/socket.h> includes /usr/include/alpha-linux-gnu/bits/socket.h
(from libc6.1-dev) which has the following:
enum __socket_type
{
...snip...
SOCK_NONBLOCK = 0x40000000 /* Atomically mark descriptor(s) as
non-blocking. */
}
which with the above macro definition becomes
0x40000000 = 0x40000000
inside the enumeration, and the compiler understandingly barfs. Indeed
this is the cause of the FTBFS of the package audit which compiles on
all other arches without a problem but fails on Alpha due to the double
definition of SOCK_NONBLOCK.
I suspect that SOCK_NONBLOCK should not be defined in <asm/socket.h> in
linux-libc-dev.
Cheers
Michael.
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