commit 4438ef32 breaks tor macOS cross builds

The macOS cross build we do for Tor Browser is broken after removing a bunch of redundant #includes (i.e. 4438ef32):

  CC       src/test/src_test_test-test_address_set.o
In file included from src/test/test_address.c:15:
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:19: error: field has incomplete type 'struct sockaddr'
                struct  sockaddr ifru_addr;
                                 ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:301:19: error: field has incomplete type 'struct sockaddr'
                struct  sockaddr ifru_dstaddr;
                                 ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:302:19: error: field has incomplete type 'struct sockaddr'
                struct  sockaddr ifru_broadaddr;
                                 ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:346:18: error: field has incomplete type 'struct sockaddr'
        struct  sockaddr ifra_addr;
                         ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:347:18: error: field has incomplete type 'struct sockaddr'
        struct  sockaddr ifra_broadaddr;
                         ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:348:18: error: field has incomplete type 'struct sockaddr'
        struct  sockaddr ifra_mask;
                         ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:300:10: note: forward declaration of 'struct sockaddr'
                struct  sockaddr ifru_addr;
                        ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:431:26: error: field has incomplete type 'struct sockaddr_storage'
        struct sockaddr_storage addr;   /* in/out */
                                ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:431:9: note: forward declaration of 'struct sockaddr_storage'
        struct sockaddr_storage addr;   /* in/out */
               ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:432:26: error: field has incomplete type 'struct sockaddr_storage'
        struct sockaddr_storage dstaddr; /* out */
                                ^
/var/tmp/dist/macosx-toolchain/SDK//usr/include/net/if.h:431:9: note: forward declaration of 'struct sockaddr_storage'
        struct sockaddr_storage addr;   /* in/out */
               ^
8 errors generated.
Makefile:9761: recipe for target 'src/test/src_test_test-test_address.o' failed
make[1]: *** [src/test/src_test_test-test_address.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/var/tmp/build/tor-master'
make: *** [all] Error 2
Makefile:3394: recipe for target 'all' failed