Socket options TCP_KEEPCNT and TCP_KEEPINTVL do not exist on Solaris 10 Sparc, so compilation fails in src/debugger.com.c due to their use in the following lines:

   ret = setsockopt(fd, SOL_TCP, TCP_KEEPCNT, &optval, optlen);

...
ret = setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &optval, optlen);

AFAIK there's no replacement one could use, but it is probably safe to simply not set the options, if the respective flag is not defined.

The same problem also occurs on the 2.9 branch.

Something like the following should work:

--- src/debugger/com.c        2020-09-28 12:24:43.000000000 +0000

+++ src/debugger/com.c  2020-11-05 16:53:47.250586515 +0000

@@ -111,17 +111,21 @@

return;

}

+#if defined(TCP_KEEPCNT)

optval = 20;

ret = setsockopt(fd, SOL_TCP, TCP_KEEPCNT, &optval, optlen);

if (ret) {

return;

}

+#endif
+#if defined(TCP_KEEPINTVL)

optval = 60;

ret = setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &optval, optlen);

if (ret) {

return;

}

+#endif

}

#endif

Thanks and regards,

Rainer