bugfix: disabled some feature under MAC OS X.

cli/apisix.lua

@@ -6,7 +6,7 @@ local ngx_tpl = [=[
 master_process on;
 
 worker_processes auto;
-worker_cpu_affinity auto;
+# worker_cpu_affinity auto;
 
 error_log logs/error.log error;
 pid logs/nginx.pid;

lua/apisix.lua

@@ -14,7 +14,11 @@ local _M = {version = 0.1}
 
 function _M.init()
     require("resty.core")
-    require("ngx.re").opt("jit_stack_size", 200 * 1024)
+
+    if require("ffi").os == "Linux" then
+        require("ngx.re").opt("jit_stack_size", 200 * 1024)
+    end
+
     require("jit.opt").start("minstitch=2", "maxtrace=4000",
                              "maxrecord=8000", "sizemcode=64",
                              "maxmcode=4000", "maxirconst=1000")