1 flock system call is not available on Solaris but it can be 

     2 replaced by calling fcntl. This patch will be sent upstream

     3 after being reworked into a format that will be acceptable.

     4 

     5 --- wget-1.17.1/src/hsts.c.orig	Tue Jan 12 09:14:54 2016

     6 +++ wget-1.17.1/src/hsts.c	Tue Jan 12 09:16:55 2016

     7 @@ -49,6 +49,7 @@

     8  #include <string.h>

     9  #include <stdio.h>

    10  #include <sys/file.h>

    11 +#include <fcntl.h>

    12  

    13  struct hsts_store {

    14    struct hash_table *table;

    15 @@ -498,6 +499,7 @@

    16    struct_stat st;

    17    FILE *fp = NULL;

    18    int fd = 0;

    19 +  struct flock lock_data;

    20  

    21    if (filename && hash_table_count (store->table) > 0)

    22      {

    23 @@ -506,7 +508,11 @@

    24          {

    25            /* Lock the file to avoid potential race conditions */

    26            fd = fileno (fp);

    27 -          flock (fd, LOCK_EX);

    28 +          lock_data.l_start = 0;

    29 +          lock_data.l_len = 0;

    30 +          lock_data.l_whence = SEEK_SET;

    31 +          lock_data.l_type = F_WRLCK;

    32 +          fcntl(fd, F_SETLKW, &lock_data);

    33  

    34            /* If the file has changed, merge the changes with our in-memory data

    35               before dumping them to the file.