Compilation with musl-libc fails

[stv0g]

src/dns/res.c: In function 'get_resolv_dns':
src/dns/res.c:33:8: warning: implicit declaration of function 'res_ninit'; did you mean 'res_init'? [-Wimplicit-function-declaration]
   33 |  ret = res_ninit(&state);
      |        ^~~~~~~~~
      |        res_init
src/dns/res.c:33:8: warning: nested extern declaration of 'res_ninit' [-Wnested-externs]
  CC      build-x86_64/net/netstr.o
src/dns/res.c:61:2: warning: implicit declaration of function 'res_nclose' [-Wimplicit-function-declaration]
   61 |  res_nclose(&state);
      |  ^~~~~~~~~~
src/dns/res.c:61:2: warning: nested extern declaration of 'res_nclose' [-Wnested-externs]
src/net/posix/pif.c: In function 'net_if_getaddr4':
src/net/posix/pif.c:65:16: error: storage size of 'ifrr' isn't known
   65 |   struct ifreq ifrr;
      |                ^~~~
src/net/posix/pif.c:65:16: warning: unused variable 'ifrr' [-Wunused-variable]
src/net/posix/pif.c: In function 'net_if_list':
src/net/posix/pif.c:104:15: error: array type has incomplete element type 'struct ifreq'
  104 |  struct ifreq ifrv[32], *ifr;
      |               ^~~~
src/net/posix/pif.c:105:16: error: storage size of 'ifc' isn't known
  105 |  struct ifconf ifc;
      |                ^~~
src/net/posix/pif.c:126:7: error: increment of pointer to an incomplete type 'struct ifreq'
  126 |       ++ifr) {
      |       ^~
src/net/posix/pif.c:127:16: error: storage size of 'ifrr' isn't known
  127 |   struct ifreq ifrr;
      |                ^~~~
src/net/posix/pif.c:130:10: error: invalid use of undefined type 'struct ifreq'
  130 |   if (ifr->ifr_addr.sa_data == (ifr+1)->ifr_addr.sa_data)
      |          ^~
src/net/posix/pif.c:130:36: error: invalid use of undefined type 'struct ifreq'
  130 |   if (ifr->ifr_addr.sa_data == (ifr+1)->ifr_addr.sa_data)
      |                                    ^
src/net/posix/pif.c:130:39: error: invalid use of undefined type 'struct ifreq'
  130 |   if (ifr->ifr_addr.sa_data == (ifr+1)->ifr_addr.sa_data)
      |                                       ^~
src/net/ifaddrs.c: In function 'net_getifaddrs':
src/net/ifaddrs.c:51:24: error: 'IFF_UP' undeclared (first use in this function)
   51 |   if (ifa->ifa_flags & IFF_UP) {
      |                        ^~~~~~
src/net/ifaddrs.c:51:24: note: each undeclared identifier is reported only once for each function it appears in
src/net/posix/pif.c:141:12: error: invalid use of undefined type 'struct ifreq'
  141 |   if (!(ifr->ifr_flags & IFF_UP))
      |            ^~
src/net/posix/pif.c:141:26: error: 'IFF_UP' undeclared (first use in this function)
  141 |   if (!(ifr->ifr_flags & IFF_UP))
      |                          ^~~~~~
src/net/posix/pif.c:141:26: note: each undeclared identifier is reported only once for each function it appears in
src/net/posix/pif.c:145:30: error: invalid use of undefined type 'struct ifreq'
  145 |   str_ncpy(ifrr.ifr_name, ifr->ifr_name, sizeof(ifrr.ifr_name));
      |                              ^~
src/net/posix/pif.c:158:21: error: invalid use of undefined type 'struct ifreq'
  158 |   if (ifh && ifh(ifr->ifr_name, &sa, arg))
      |                     ^~
src/net/posix/pif.c:127:16: warning: unused variable 'ifrr' [-Wunused-variable]
  127 |   struct ifreq ifrr;
      |                ^~~~
src/net/posix/pif.c:105:16: warning: unused variable 'ifc' [-Wunused-variable]
  105 |  struct ifconf ifc;
      |                ^~~
src/net/posix/pif.c:104:15: warning: unused variable 'ifrv' [-Wunused-variable]
  104 |  struct ifreq ifrv[32], *ifr;
      |               ^~~~
make: *** [Makefile:94: build-x86_64/net/ifaddrs.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [Makefile:94: build-x86_64/net/posix/pif.o] Error 1
src/tcp/tcp.c: In function 'tcp_sock_bind':
src/tcp/tcp.c:664:12: error: 'NI_MAXSERV' undeclared (first use in this function)
  664 |  char serv[NI_MAXSERV] = "0";
      |            ^~~~~~~~~~
src/tcp/tcp.c:664:12: note: each undeclared identifier is reported only once for each function it appears in
src/tcp/tcp.c:664:7: warning: unused variable 'serv' [-Wunused-variable]
  664 |  char serv[NI_MAXSERV] = "0";
      |       ^~~~
src/tcp/tcp.c: In function 'tcp_conn_alloc':
src/tcp/tcp.c:825:12: error: 'NI_MAXSERV' undeclared (first use in this function)
  825 |  char serv[NI_MAXSERV] = "0";
      |            ^~~~~~~~~~
src/tcp/tcp.c:825:7: warning: unused variable 'serv' [-Wunused-variable]
  825 |  char serv[NI_MAXSERV] = "0";
      |       ^~~~
src/tcp/tcp.c: In function 'tcp_conn_bind':
src/tcp/tcp.c:902:12: error: 'NI_MAXSERV' undeclared (first use in this function)
  902 |  char serv[NI_MAXSERV] = "0";
      |            ^~~~~~~~~~
src/tcp/tcp.c:902:7: warning: unused variable 'serv' [-Wunused-variable]
  902 |  char serv[NI_MAXSERV] = "0";
      |       ^~~~
src/tcp/tcp.c: In function 'tcp_conn_connect':
src/tcp/tcp.c:975:12: error: 'NI_MAXSERV' undeclared (first use in this function)
  975 |  char serv[NI_MAXSERV];
      |            ^~~~~~~~~~
src/tcp/tcp.c:975:7: warning: unused variable 'serv' [-Wunused-variable]
  975 |  char serv[NI_MAXSERV];
      |       ^~~~
make: *** [Makefile:93: build-x86_64/tcp/tcp.o] Error 1