WIP: Use force_dynamic_crt v8 flag

Author: stefanmb

common.gypi

@@ -12,6 +12,7 @@
     'python%': 'python',
 
     'node_shared%': 'false',
+    'force_dynamic_crt%': 0,
     'node_use_v8_platform%': 'true',
     'node_use_bundled_v8%': 'true',
     'node_module_version%': '',

configure

@@ -889,6 +889,7 @@ def configure_v8(o):
   o['variables']['v8_use_snapshot'] = 'false' if options.without_snapshot else 'true'
   o['variables']['node_use_v8_platform'] = b(not options.without_v8_platform)
   o['variables']['node_use_bundled_v8'] = b(not options.without_bundled_v8)
+  o['variables']['force_dynamic_crt'] = int(options.shared)
   o['variables']['node_enable_d8'] = b(options.enable_d8)
   if options.enable_d8:
     o['variables']['test_isolation_mode'] = 'noop'  # Needed by d8.gyp.

deps/v8/build/toolchain.gypi

@@ -39,6 +39,7 @@
     'ubsan_vptr%': 0,
     'v8_target_arch%': '<(target_arch)',
     'v8_host_byteorder%': '<!(python -c "import sys; print sys.byteorder")',
+    'force_dynamic_crt%': 0,
     # Native Client builds currently use the V8 ARM JIT and
     # arm/simulator-arm.cc to defer the significant effort required
     # for NaCl JIT support. The nacl_target_arch variable provides
@@ -1104,7 +1105,7 @@
           'VCCLCompilerTool': {
             'Optimization': '0',
             'conditions': [
-              ['component=="shared_library" or node_shared=="true"', {
+              ['component=="shared_library" or force_dynamic_crt==1', {
                 'RuntimeLibrary': '3',  # /MDd
               }, {
                 'RuntimeLibrary': '1',  # /MTd
@@ -1156,7 +1157,7 @@
             'StringPooling': 'true',
             'BasicRuntimeChecks': '0',
             'conditions': [
-              ['component=="shared_library" or node_shared=="true"', {
+              ['component=="shared_library" or force_dynamic_crt==1', {
                 'RuntimeLibrary': '3',  #/MDd
               }, {
                 'RuntimeLibrary': '1',  #/MTd
@@ -1347,7 +1348,7 @@
                 'FavorSizeOrSpeed': '0',
                 'StringPooling': 'true',
                 'conditions': [
-                  ['component=="shared_library" or node_shared=="true"', {
+                  ['component=="shared_library" or force_dynamic_crt==1', {
                     'RuntimeLibrary': '2',  #/MD
                   }, {
                     'RuntimeLibrary': '0',  #/MT

node.gyp

@@ -9,6 +9,7 @@
     'node_use_v8_platform%': 'true',
     'node_use_bundled_v8%': 'true',
     'node_shared%': 'false',
+    'force_dynamic_crt%': 0,
     'node_module_version%': '',
     'node_shared_zlib%': 'false',
     'node_shared_http_parser%': 'false',