openssl: search winsock

* ext/openssl/extconf.rb: on Windows search winsock library
  always, regardless pkg-config.  direct use of winsock is not
  region of OpenSSL.  [ruby-core:85895] [Bug #14568]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62637 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Sync-with-trunk: r62637

Author: nobu

ext/openssl/extconf.rb

@@ -33,14 +33,16 @@
 Logging::message "=== Checking for system dependent stuff... ===\n"
 have_library("nsl", "t_open")
 have_library("socket", "socket")
+if $mswin || $mingw
+  have_library("ws2_32")
+end
 
 Logging::message "=== Checking for required stuff... ===\n"
 result = pkg_config("openssl") && have_header("openssl/ssl.h")
 
 def find_openssl_library
   if $mswin || $mingw
     # required for static OpenSSL libraries
-    have_library("ws2_32")
     have_library("gdi32") # OpenSSL <= 1.0.2 (for RAND_screen())
     have_library("crypt32")
   end