On Thu, 2007-05-17 at 22:29 -0700, Michael Eager wrote: > Sven Eschenberg wrote: > > Hi list, > > > > Long time ago I wrote a small application, well back when g++ didn't > > even insist on std::cout. Now, since I upgrade g++ and tried to compile > > the application, g++ threw errors and warnings in masses. Most of the > > stuff I could fix, but I am stuck with the following problem: > > > > /usr/include/linux/netfilter_ipv4/ip_tables.h: In function > > 'xt_entry_target* ipt_get_target(ipt_entry*)': > > /usr/include/linux/netfilter_ipv4/ip_tables.h:225: error: pointer of > > type 'void *' used in arithmetic > > /usr/include/linux/netfilter_ipv4/ip_tables.h:225: error: invalid > > conversion from 'void*' to 'xt_entry_target*' > > > > Is there any chance of fixing the problem without tweaking the kernel > > includes (the running kernel is kinda ancient, but updates are a little > > difficult)? > > Cast the (void *) to (char *). > > It's not clear what the type of xt_entry_target is. If it > is a pointer, then there should be no problem converting. > > Well, the funny thing is, the pointer is casted to void *, and then returned, the inline functions return type is a different type anyway, so I changed it to the return type which pretty much does the job. Still, feels uncomfortable, that I had to change the header (which is from a pretty recent kernel headers package). -Sven
