fio fails to build on Solaris 11.4 x86_64

[Rebecca Cran <rebecca@xxxxxxxxxxxx>]

Since I've been doing a bit of work on Solaris 11.4 x86_64 recently, I
decided to see if fio works on it.

It turns out it fails to build (using gcc 7.3.0):


bcran@solaris:~/workspace/fio$ gmake
    CC stat.o
In file included from os/os.h:46:0,
                 from thread_options.h:5,
                 from fio.h:18,
                 from stat.c:7:
stat.c: In function 'show_thread_status_normal':
os/os-solaris.h:46:33: error: too many arguments to function 'ctime_r'
 #define os_ctime_r(x, y, z)     ctime_r((x), (y), (z))
                                 ^
stat.c:804:2: note: in expansion of macro 'os_ctime_r'
  os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
  ^~~~~~~~~~
In file included from /usr/include/sys/time.h:447:0,
                 from /usr/include/sys/select.h:27,
                 from /usr/include/sys/types.h:665,
                 from /usr/include/string.h:15,
                 from stat.c:2:
/usr/include/time.h:265:14: note: declared here
 extern char *ctime_r(const time_t *, char *);
              ^~~~~~~
In file included from os/os.h:46:0,
                 from thread_options.h:5,
                 from fio.h:18,
                 from stat.c:7:
stat.c: In function '__show_run_stats':
os/os-solaris.h:46:33: error: too many arguments to function 'ctime_r'
 #define os_ctime_r(x, y, z)     ctime_r((x), (y), (z))
                                 ^
stat.c:1969:3: note: in expansion of macro 'os_ctime_r'
   os_ctime_r(&tv_sec, time_buf, sizeof(time_buf));
   ^~~~~~~~~~
In file included from /usr/include/sys/time.h:447:0,
                 from /usr/include/sys/select.h:27,
                 from /usr/include/sys/types.h:665,
                 from /usr/include/string.h:15,
                 from stat.c:2:
/usr/include/time.h:265:14: note: declared here
 extern char *ctime_r(const time_t *, char *);
              ^~~~~~~
gmake: *** [Makefile:369: stat.o] Error 1