On Sun, Nov 20, 2016 at 08:54:06PM +0100, Bernhard Schmidt wrote:
>...
> On Sat, Nov 19, 2016 at 07:43:42AM +0100, Lucas Nussbaum wrote:
>...
> > Relevant part (hopefully):
> > > gcc -DHAVE_CONFIG_H -I. -I..   -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -g 
> > > -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong 
> > > -Wformat -Werror=format-security -c -o tunnel.o tunnel.c
> > > In file included from /usr/include/linux/if_tunnel.h:6:0,
> > >                  from tunnel.c:23:
> > > /usr/include/linux/ip.h:85:8: error: redefinition of 'struct iphdr'
> > >  struct iphdr {
> > >         ^~~~~
> > > In file included from tunnel.c:21:0:
> > > /usr/include/netinet/ip.h:44:8: note: originally defined here
> > >  struct iphdr
> > >         ^~~~~
> > > Makefile:353: recipe for target 'tunnel.o' failed
> > > make[3]: *** [tunnel.o] Error 1
>...
> Odd. I can reproduce this FTBFS. The package has not been touched for a
> long time, does not have any uncommon builddeps and (according to the
> reproducible builds at
> https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/isatapd.html)
> built fine in sid until a month ago.
>...

This is caused by a recent change to the kernel userspace headers:
  
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fe8e0f074c77aa41aaa579345a9e675acbebfa9

> Bernhard

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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