x86_64-pc-linux-gnu-gcc -march=native -mtune=native -O2 -pipe -std=c99 -DHAVE_CONFIG_H -DNDEBUG -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DINET -DARP -DARPING -DIPV4LL -DAUTH -DPRIVSEP -DEMBEDDED_CONFIG=\"/lib/dhcpcd/dhcpcd-definitions.conf\" -DPLUGIN_DEV -I.. -I../src -I./crypt -c if-options.c -o if-options.o
if-options.c: In function ‘parse_option’:
if-options.c:910:17: error: ‘vsiop’ undeclared (first use in this function); did you mean ‘vsio’?
  910 |                 vsiop = &ifo->vsio;
      |                 ^~~~~
      |                 vsio
if-options.c:910:17: note: each undeclared identifier is reported only once for each function it appears in
if-options.c:911:17: error: ‘vsio_lenp’ undeclared (first use in this function)
  911 |                 vsio_lenp = &ifo->vsio_len;
      |                 ^~~~~~~~~
if-options.c:912:17: error: ‘opt_max’ undeclared (first use in this function)
  912 |                 opt_max = UINT8_MAX;
      |                 ^~~~~~~
if-options.c:913:17: error: ‘opt_header’ undeclared (first use in this function)
  913 |                 opt_header = sizeof(uint8_t) + sizeof(uint8_t);
      |                 ^~~~~~~~~~
if-options.c:968:61: error: ‘in6addr’ undeclared (first use in this function); did you mean ‘in6_addr’?
  968 |                         } else if (inet_pton(AF_INET6, fp, &in6addr) == 1) {
      |                                                             ^~~~~~~
      |                                                             in6_addr
if-options.c:996:22: error: ‘sl’ undeclared (first use in this function); did you mean ‘dl’?
  996 |                 for (sl = 0, vsio = *vsiop; sl < *vsio_lenp; sl++, vsio++) {
      |                      ^~
      |                      dl
if-options.c:996:30: error: ‘vsio’ undeclared (first use in this function)
  996 |                 for (sl = 0, vsio = *vsiop; sl < *vsio_lenp; sl++, vsio++) {
      |                              ^~~~
if-options.c:1015:30: error: ‘vsio_so’ undeclared (first use in this function)
 1015 |                 for (sl = 0, vsio_so = vsio->so;
      |                              ^~~~~~~
make[1]: *** [Makefile:55: if-options.o] Error 1