Add support for Mac OS X 64bit builds with GYP

tools/gyp/v8.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 41 matching lines @@
               'dependencies': ['v8_base', 'v8_nosnapshot'],
             }],
             ['component=="shared_library"', {
               'type': '<(component)',
               'sources': [
                 # Note: on non-Windows we still build this file so that gyp
                 # has some sources to link into the component.
                 '../../src/v8dll-main.cc',
               ],
               'conditions': [
+                ['OS=="mac"', {
+                  'xcode_settings': {'OTHER_LDFLAGS': ['-dynamiclib', '-all_load']},

[Jakob Kummerow, 2012/03/28 16:08:51]

80 cols per line, please.

[fdmanana, 2012/03/28 16:49:29]

Ops, sorry :)

+                }],
                 ['OS=="win"', {
                   'defines': [
                     'BUILDING_V8_SHARED',
                   ],
                   'direct_dependent_settings': {
                     'defines': [
                       'USING_V8_SHARED',
                     ],
                   },
                 }, {
@@ skipping 457 matching lines @@
                 '../../src/arm/lithium-gap-resolver-arm.cc',
                 '../../src/arm/lithium-gap-resolver-arm.h',
                 '../../src/arm/macro-assembler-arm.cc',
                 '../../src/arm/macro-assembler-arm.h',
                 '../../src/arm/regexp-macro-assembler-arm.cc',
                 '../../src/arm/regexp-macro-assembler-arm.h',
                 '../../src/arm/simulator-arm.cc',
                 '../../src/arm/stub-cache-arm.cc',
               ],
             }],
-            ['v8_target_arch=="ia32" or v8_target_arch=="mac" or OS=="mac"', {
+            ['v8_target_arch=="ia32"', {

[Jakob Kummerow, 2012/03/28 16:08:51]

From crbug.com/44205, I gather that it should be possible to choose the
architecture from within Xcode; v8_target_arch=="mac" (or target_arch=="mac", I
don't care) seems to be how the desire to have this option is indicated. Can you
make that work?
Alternatively, would you mind leaving the 'v8_target_arch=="mac"' condition in
so that any progress in that area is not hampered?

[fdmanana, 2012/03/28 16:49:29]

Ok, I'll leave this as it was before. I found it weird that both the ia32 and
x64 versions were being compiled and assembled into the same .a file (which
worked fine, I just felt odd and thought it could be an unintentional
condition).

               'sources': [
                 '../../src/ia32/assembler-ia32-inl.h',
                 '../../src/ia32/assembler-ia32.cc',
                 '../../src/ia32/assembler-ia32.h',
                 '../../src/ia32/builtins-ia32.cc',
                 '../../src/ia32/code-stubs-ia32.cc',
                 '../../src/ia32/code-stubs-ia32.h',
                 '../../src/ia32/codegen-ia32.cc',
                 '../../src/ia32/codegen-ia32.h',
                 '../../src/ia32/cpu-ia32.cc',
@@ skipping 44 matching lines @@
                 '../../src/mips/lithium-mips.cc',
                 '../../src/mips/lithium-mips.h',
                 '../../src/mips/macro-assembler-mips.cc',
                 '../../src/mips/macro-assembler-mips.h',
                 '../../src/mips/regexp-macro-assembler-mips.cc',
                 '../../src/mips/regexp-macro-assembler-mips.h',
                 '../../src/mips/simulator-mips.cc',
                 '../../src/mips/stub-cache-mips.cc',
               ],
             }],
-            ['v8_target_arch=="x64" or v8_target_arch=="mac" or OS=="mac"', {
+            ['v8_target_arch=="x64"', {
               'sources': [
                 '../../src/x64/assembler-x64-inl.h',
                 '../../src/x64/assembler-x64.cc',
                 '../../src/x64/assembler-x64.h',
                 '../../src/x64/builtins-x64.cc',
                 '../../src/x64/code-stubs-x64.cc',
                 '../../src/x64/code-stubs-x64.h',
                 '../../src/x64/codegen-x64.cc',
                 '../../src/x64/codegen-x64.h',
                 '../../src/x64/cpu-x64.cc',
@@ skipping 385 matching lines @@
             }],
           ],
           'dependencies': [
             'v8'
           ],
         },
       ],
     }],
   ],
 }