=> "/opt/pkg/bin/bmake" ["-C", "/data/jenkins/workspace/pkgsrc-upstream-trunk/net/6tunnel", "all", "BATCH=1", "DEPENDS_TARGET=/nonexistent"]
===> Building for 6tunnel-0.13
gcc  -pipe -O2 -msave-args -fno-aggressive-loop-optimizations  -o /tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel /tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c  -lsocket -lnsl -Wl,-R/opt/pkg/lib
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c: In function 'sighup':
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:565:24: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  565 |         signal(SIGHUP, sighup);
      |                        ^~~~~~
      |                        |
      |                        void (*)(void)
In file included from /usr/include/signal.h:42,
                 from /tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:35:
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:560:6: note: 'sighup' declared here
  560 | void sighup()
      |      ^~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c: In function 'sigchld':
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:575:25: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  575 |         signal(SIGCHLD, sigchld);
      |                         ^~~~~~~
      |                         |
      |                         void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:568:6: note: 'sigchld' declared here
  568 | void sigchld()
      |      ^~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c: In function 'main':
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:801:32: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  801 |                 signal(SIGHUP, sighup);
      |                                ^~~~~~
      |                                |
      |                                void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:560:6: note: 'sighup' declared here
  560 | void sighup()
      |      ^~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:840:25: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  840 |         signal(SIGCHLD, sigchld);
      |                         ^~~~~~~
      |                         |
      |                         void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:568:6: note: 'sigchld' declared here
  568 | void sigchld()
      |      ^~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:841:25: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  841 |         signal(SIGTERM, sigterm);
      |                         ^~~~~~~
      |                         |
      |                         void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:578:6: note: 'sigterm' declared here
  578 | void sigterm()
      |      ^~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:842:24: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  842 |         signal(SIGINT, sigterm);
      |                        ^~~~~~~
      |                        |
      |                        void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:578:6: note: 'sigterm' declared here
  578 | void sigterm()
      |      ^~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:843:24: error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]
  843 |         signal(SIGHUP, sighup);
      |                        ^~~~~~
      |                        |
      |                        void (*)(void)
/usr/include/iso/signal_iso.h:63:27: note: expected 'void (*)(int)' but argument is of type 'void (*)(void)'
   63 | extern void (*signal(int, void (*)(int)))(int);
      |                           ^~~~~~~~~~~~~
/tmp/work/net/6tunnel/work/6tunnel-0.13/6tunnel.c:560:6: note: 'sighup' declared here
  560 | void sighup()
      |      ^~~~~~
*** Error code 1

Stop.
bmake[1]: stopped making "all" in /data/jenkins/workspace/pkgsrc-upstream-trunk/net/6tunnel
*** Error code 1

Stop.
bmake: stopped making "all" in /data/jenkins/workspace/pkgsrc-upstream-trunk/net/6tunnel