On Wed, Feb 04, 2009 at 10:35:09AM -0500, Steve wrote:
> On my fully-up-to-date F9 system, this file, junk.c:
>
> #include <netinet/in.h>
>
> struct my_struct {
> struct in6_addr ipi6_addr;
> unsigned int ipi6_ifindex;
> };
>
> int main ( int argc, char **argv )
> {
> int x,y;
> struct in6_pktinfo junk;
> struct my_struct junk2;
>
> x = sizeof (junk);
> y = sizeof (junk2);
> }
>
> when compiled gives this error:
> $ gcc -c junk.c
> junk.c: In function ‘main’:
> junk.c:12: error: storage size of ‘junk’ isn’t known
Compile with
gcc -D_GNU_SOURCE -c junk.c
as struct in6_pktinfo is a GNU extension.
info libc 'Feature Test Macros'
for more info.
Jakub
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