When building OpenSSL as a component build on OS X, by default export all symbols (matching Linux)

openssl.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'openssl',
       'type': '<(component)',
       'includes': [
@@ skipping 74 matching lines @@
           'sources!': [ '<@(openssl_x86_64_source_excludes)' ],
           'defines': [ '<@(openssl_x86_64_defines)' ],
           'defines!': [ 'OPENSSL_NO_ASM' ],
           'variables': {
             # Ensure the 64-bit opensslconf.h header is used.
             'openssl_include_dirs+': [ 'config/x64' ],
             'openssl_public_include_dirs+': [ 'config/x64' ],
           },
         }],
         ['component == "shared_library"', {
+          'xcode_settings': {
+            'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',  # no -fvisibility=hidden
+          },
           'cflags!': ['-fvisibility=hidden'],
         }],
         ['clang==1', {
           'cflags': [
             # OpenSSL has a few |if ((foo == NULL))| checks.
             '-Wno-parentheses-equality',
             # OpenSSL uses several function-style macros and then ignores the
             # returned value.
             '-Wno-unused-value',
           ],
@@ skipping 13 matching lines @@
       },
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: