Make GYP build usable for day-to-day work (second attempt)

build/common.gypi

-# Copyright 2010 the V8 project authors. All rights reserved.
+# Copyright 2011 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
 #       with the distribution.
@@ skipping 27 matching lines @@
           'host_arch%':
             '<!(uname -m | sed -e "s/i.86/ia32/;s/x86_64/x64/;s/amd64/x64/;s/arm.*/arm/")',
         }, {  # OS!="linux" and OS!="freebsd" and OS!="openbsd"
           'host_arch%': 'ia32',
         }],
       ],
     },
     'host_arch%': '<(host_arch)',
     'target_arch%': '<(host_arch)',
     'v8_target_arch%': '<(target_arch)',
+    'v8_enable_debugger_support%': 1,
+    'conditions': [
+      ['(target_arch=="arm" and host_arch!="arm") or \
+        (target_arch=="x64" and host_arch!="x64")', {
+        'want_separate_host_toolset': 1,
+      }, {
+        'want_separate_host_toolset': 0,
+      }],
+    ],
   },
   'target_defaults': {
     'default_configuration': 'Debug',
+    'conditions': [
+      ['v8_enable_debugger_support==1', {
+          'defines': ['ENABLE_DEBUGGER_SUPPORT',],
+        },
+      ],
+    ],
     'configurations': {
       'Debug': {
         'cflags': [ '-g', '-O0' ],
-        'defines': [ 'ENABLE_DISASSEMBLER', 'DEBUG' ],
+        'defines': [ 'ENABLE_DISASSEMBLER', 'DEBUG', 'V8_ENABLE_CHECKS',
+                     'OBJECT_PRINT' ],
       },
       'Release': {
-        'cflags': [ '-O3', '-fomit-frame-pointer', '-fdata-sections', '-ffunction-sections' ],
+        'cflags': [ '-O3', '-fomit-frame-pointer', '-fdata-sections',
+                    '-ffunction-sections' ],
       },
     },
   },
   'conditions': [
     [ 'OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
       'target_defaults': {
-        'cflags': [ '-Wall', '-pthread', '-fno-rtti', '-fno-exceptions' ],
+        'cflags': [ '-Wall', '-pthread', '-fno-rtti', '-fno-exceptions',
+                    '-pedantic' ],
         'ldflags': [ '-pthread', ],
         'conditions': [
           [ 'target_arch=="ia32"', {
             'cflags': [ '-m32' ],
             'ldflags': [ '-m32' ],
           }],
           [ 'OS=="linux"', {
             'cflags': [ '-ansi' ],
           }],
           [ 'visibility=="hidden"', {
@@ skipping 98 matching lines @@
         },
         'target_conditions': [
           ['_type!="static_library"', {
             'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
           }],
         ],  # target_conditions
       },  # target_defaults
     }],  # OS=="mac"
   ],
 }