Another attempt to fix windows compilation (#556)

AMBuildScript

@@ -291,6 +291,9 @@ class AMXXConfig(object):
       'odbccp32.lib',
     ]
 
+    if cxx.version >= 1900:
+      cxx.linkflags += ['legacy_stdio_definitions.lib', 'legacy_stdio_wide_specifiers.lib']
+
     if builder.options.opt == '1':
       cxx.cflags += ['/Ox']
       cxx.linkflags += ['/OPT:ICF', '/OPT:REF']

modules/mysqlx/AMBuilder

@@ -36,9 +36,8 @@ if AMXX.mysql_path:
       '/SECTION:.data,RW'
     ]
     if binary.compiler.vendor == 'msvc' and binary.compiler.version >= 1900:
-      binary.compiler.linkflags += ['legacy_stdio_definitions.lib', 'legacy_stdio_wide_specifiers.lib']
        binary.sources += [
-        'msvc15hack.c'
+        '../../public/msvc/msvc15hack.c'
       ]
 
   binary.compiler.linkflags += [AMXX.zlib.binary]

modules/regex/AMBuilder

@@ -24,5 +24,9 @@ binary.sources = [
 
 if builder.target_platform == 'windows':
   binary.sources += ['version.rc']
+  if binary.compiler.vendor == 'msvc' and binary.compiler.version >= 1900:
+    binary.sources += [
+    '../../public/msvc/msvc15hack.c'
+  ]
 
 AMXX.modules += [builder.Add(binary)]