rump and htonl() in constants

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

The surprise is that when building rump, gcc complains with:


/usr/src/sys/rump/net/lib/libnet/../../../../net/route.c:1010:21: error: initializer element is not constant
 static const struct in_addr inmask32 = {.s_addr = INADDR_BROADCAST};
                     ^
/usr/src/sys/rump/net/lib/libnet/../../../../net/route.c:1010:21: error: (near initialization for 'inmask32.s_addr')


which certainly looks constant. Problem is that INADDR_BROADCAST may
contain a call to htonl(), e.g. try

========================================================================
#include <sys/endian.h>

#include <stdio.h>
#include <stdlib.h>

struct x {unsigned int y;};

static const struct x xx = {.y = (unsigned int)htonl(0xffffffff)};

int main()
{
        printf("0x%x\n", xx.y);

        return 0;
}
========================================================================

Given that 0xffffffff is the same in either order, there is an obvious
kludge, but any thoughts on an elegant solution?

Cheers,

Patrick