Re: dhcpcd compile problem with libc6

[Roman Hodek <rnhodek@faui22c.informatik.uni-erlangen.de>]

> In file included from /usr/include/linux/if.h:23,
> 				   from /usr/include/linux/netdevice.h:30,
> 				   from if.c:28:
> /usr/include/linux/socket.h:9: redefinition of `struct sockaddr'

Seems if.c includes <linux/netdevice.h>, which in turn goes to
<linux/socket.h>. With glibc you should generally prefer the headers
in sys to those in linux (the linux header is included by the sys
header if needed). Maybe it helps to explicitly include <sys/socket.h>
before netdevice.h (since there is no <sys/netdevice.h>).

If this doesn't help, I'd say it's some inconsistency between glibc
headers and Linux headers, which should be reported to the glibc
maintainers. (It should be possible to include a <linux/> header if
there's no corresponding <sys/> header.) A temporary fix could be to
avoid reading <linux/socket.h> with #define _LINUX_SOCKET_H.

Roman


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