gyp: enable postmortem support, fix dtrace paths

Fix: iojs/io.js#461
PR-URL: https://github.com/iojs/io.js/pull/706
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

common.gypi

@@ -23,14 +23,13 @@
     # Don't bake anything extra into the snapshot.
     'v8_use_external_startup_data%': 0,
 
-    # Disable V8's post-mortem debugging; frequently broken and hardly used.
-    'v8_postmortem_support%': 'false',
-
     'conditions': [
       ['OS == "win"', {
         'os_posix': 0,
+        'v8_postmortem_support%': 'false',
       }, {
         'os_posix': 1,
+        'v8_postmortem_support%': 'true',
       }],
       ['GENERATOR == "ninja" or OS== "mac"', {
         'OBJ_DIR': '<(PRODUCT_DIR)/obj',

node.gyp

@@ -526,10 +526,10 @@
             {
               'action_name': 'node_dtrace_provider_o',
               'inputs': [
-                '<(OBJ_DIR)/node/src/node_dtrace.o',
+                '<(OBJ_DIR)/iojs/src/node_dtrace.o',
               ],
               'outputs': [
-                '<(OBJ_DIR)/node/src/node_dtrace_provider.o'
+                '<(OBJ_DIR)/iojs/src/node_dtrace_provider.o'
               ],
               'action': [ 'dtrace', '-G', '-xnolibs', '-s', 'src/node_provider.d',
                 '<@(_inputs)', '-o', '<@(_outputs)' ]
@@ -579,7 +579,7 @@
                 '<(SHARED_INTERMEDIATE_DIR)/v8constants.h'
               ],
               'outputs': [
-                '<(OBJ_DIR)/node/src/node_dtrace_ustack.o'
+                '<(OBJ_DIR)/iojs/src/node_dtrace_ustack.o'
               ],
               'conditions': [
                 [ 'target_arch=="ia32"', {