build: avoid sysinfo() on Solaris

Solaris inherited the SVR4 sysinfo() function, which takes a different
number of arguments from Linux, and provides information such as host
name and OS version, but not information on free or total memory.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

meson.build

@@ -760,7 +760,6 @@ functions = [
   'strtoll_l',
   'strtoull_l',
   'symlink',
-  'sysinfo',
   'timegm',
   'unsetenv',
   'uselocale',
@@ -824,6 +823,11 @@ if host_system != 'aix'
   functions += ['splice']
 endif
 
+# SVR4 sysinfo() does not behave the same as sysinfo() on other Unixes
+if host_system != 'sunos'
+  functions += ['sysinfo']
+endif
+
 foreach f : functions
   if cc.has_function(f)
     define = 'HAVE_' + f.underscorify().to_upper()