build: Fix errors of TCP_REPAIR_* undeclared

Based on an original patch by Dongsheng, fix the following errors on systems with glibc < 2.29:

tcp.c: In function ‘tcp_flow_repair_on’:
tcp.c:2787:38: error: ‘TCP_REPAIR_ON’ undeclared (first use in this function); did you mean ‘TCP_REPAIR’?
  if ((rc = repair_set(c, conn->sock, TCP_REPAIR_ON)))
                                      ^~~~~~~~~~~~~
                                      TCP_REPAIR
tcp.c:2787:38: note: each undeclared identifier is reported only once for each function it appears in
tcp.c: In function ‘tcp_flow_repair_off’:
tcp.c:2807:38: error: ‘TCP_REPAIR_OFF’ undeclared (first use in this function); did you mean ‘TCP_REPAIR’?
  if ((rc = repair_set(c, conn->sock, TCP_REPAIR_OFF)))
                                      ^~~~~~~~~~~~~~
                                      TCP_REPAIR
make: *** [Makefile:94: passt] Error 1

Link: https://bugs.passt.top/show_bug.cgi?id=121
Reported-by: Dongsheng <dongsheng.song@gmail.com>
Signed-off-by: Yumei Huang <yuhuang@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

0 files changed, 0 insertions, 0 deletions