Remove output directory from library path on Linux.

runtime/bin/bin.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'crypto_cc_file': '<(SHARED_INTERMEDIATE_DIR)/crypto_gen.cc',
     'io_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_gen.cc',
     'io_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_patch_gen.cc',
     'json_cc_file': '<(SHARED_INTERMEDIATE_DIR)/json_gen.cc',
@@ skipping 474 matching lines @@
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
           # Generate an import library on Windows, by exporting a function.
           # Extensions use this import library to link to the API in dart.exe.
           'msvs_settings': {
             'VCLinkerTool': {
               'AdditionalOptions': [ '/EXPORT:Dart_True' ],
             },
           },
         }],
-       ],
+        ['OS=="linux"', {
+          # Have the linker add all symbols to the dynamic symbol table
+          # so that extensions can look them up dynamically in the binary.
+          'ldflags': [
+            '-rdynamic',
+          ],
+        }],
+      ],
     },
     {
       # dart binary without any snapshot built in.
       'target_name': 'dart_no_snapshot',
       'type': 'executable',
       'dependencies': [
         'libdart_withcore',
         'libdart_builtin',
         'libdart_io',
       ],
@@ skipping 18 matching lines @@
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
           # Generate an import library on Windows, by exporting a function.
           # Extensions use this import library to link to the API in dart.exe.
           'msvs_settings': {
             'VCLinkerTool': {
               'AdditionalOptions': [ '/EXPORT:Dart_True' ],
             },
           },
-       }]],
+        }],
+        ['OS=="linux"', {
+          # Have the linker add all symbols to the dynamic symbol table
+          # so that extensions can look them up dynamically in the binary.
+          'ldflags': [
+            '-rdynamic',
+          ],
+        }],
+      ],
     },
     {
       'target_name': 'process_test',
       'type': 'executable',
       'sources': [
         'process_test.cc',
       ]
     },
     {
       'target_name': 'run_vm_tests',
@@ skipping 73 matching lines @@
         ['OS=="mac"', {
           'xcode_settings': {
             'OTHER_LDFLAGS': [ '-undefined', 'dynamic_lookup' ],
           },
         }],
       ],
     },
   ],
 }