From 88e862ba82a3a62a25bab558915e4290b7686f1a Mon Sep 17 00:00:00 2001
From: Stefan Budeanu <stefan@budeanu.com>
Date: Wed, 29 Jun 2016 16:03:18 -0400
Subject: [PATCH] build: windows sharedlib support

Added "dll" option to vcbuild.bat
Insure that Unix SO name is not used on Windows (i.e. produce a .dll file)
Insure that Node and its V8 dependency link against the Visual C++ Runtime
dynamically.
Requires backported V8 patch, see PR 7802.

Ref: https://github.com/nodejs/node/pull/7802

PR-URL: https://github.com/nodejs/node/pull/7487
Reviewed-By: Alexis Campailla <alexis@janeasystems.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
---
 common.gypi | 31 +++++++++++++++++++++++++++++--
 configure   |  1 +
 node.gyp    |  3 ++-
 vcbuild.bat |  3 +++
 4 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/common.gypi b/common.gypi
index 5eea907a0ef1e2..ee31349eb02b09 100644
--- a/common.gypi
+++ b/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%': '',
@@ -78,11 +79,24 @@
           ['OS == "android"', {
             'cflags': [ '-fPIE' ],
             'ldflags': [ '-fPIE', '-pie' ]
+          }],
+          ['node_shared=="true"', {
+            'msvs_settings': {
+             'VCCLCompilerTool': {
+               'RuntimeLibrary': 3, # MultiThreadedDebugDLL (/MDd)
+             }
+            }
+          }],
+          ['node_shared=="false"', {
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'RuntimeLibrary': 1 # MultiThreadedDebug (/MTd)
+              }
+            }
           }]
         ],
         'msvs_settings': {
           'VCCLCompilerTool': {
-            'RuntimeLibrary': 1, # static debug
             'Optimization': 0, # /Od, no optimization
             'MinimalRebuild': 'false',
             'OmitFramePointers': 'false',
@@ -115,11 +129,24 @@
           ['OS == "android"', {
             'cflags': [ '-fPIE' ],
             'ldflags': [ '-fPIE', '-pie' ]
+          }],
+          ['node_shared=="true"', {
+            'msvs_settings': {
+             'VCCLCompilerTool': {
+               'RuntimeLibrary': 2 # MultiThreadedDLL (/MD)
+             }
+            }
+          }],
+          ['node_shared=="false"', {
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'RuntimeLibrary': 0 # MultiThreaded (/MT)
+              }
+            }
           }]
         ],
         'msvs_settings': {
           'VCCLCompilerTool': {
-            'RuntimeLibrary': 0, # static release
             'Optimization': 3, # /Ox, full optimization
             'FavorSizeOrSpeed': 1, # /Ot, favour speed over size
             'InlineFunctionExpansion': 2, # /Ob2, inline anything eligible
diff --git a/configure b/configure
index b23bfc36a282d0..c117486f99bcc8 100755
--- a/configure
+++ b/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'] = 1 if options.shared else 0
   o['variables']['node_enable_d8'] = b(options.enable_d8)
   if options.enable_d8:
     o['variables']['test_isolation_mode'] = 'noop'  # Needed by d8.gyp.
diff --git a/node.gyp b/node.gyp
index 1f7fe54880f4d2..88b880d7438843 100644
--- a/node.gyp
+++ b/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',
@@ -247,7 +248,7 @@
             'NODE_SHARED_MODE',
           ],
           'conditions': [
-            [ 'node_module_version!=""', {
+            [ 'node_module_version!="" and OS!="win"', {
               'product_extension': 'so.<(node_module_version)',
             }]
           ],
diff --git a/vcbuild.bat b/vcbuild.bat
index f95cfca8b390a9..fd0fa3c78e04c1 100644
--- a/vcbuild.bat
+++ b/vcbuild.bat
@@ -38,6 +38,7 @@ set build_release=
 set enable_vtune_arg=
 set configure_flags=
 set build_addons=
+set dll=
 
 :next-arg
 if "%1"=="" goto args-done
@@ -79,6 +80,7 @@ if /i "%1"=="without-intl"     set i18n_arg=%1&goto arg-ok
 if /i "%1"=="download-all"  set download_arg="--download=all"&goto arg-ok
 if /i "%1"=="ignore-flaky"  set test_args=%test_args% --flaky-tests=dontcare&goto arg-ok
 if /i "%1"=="enable-vtune"  set enable_vtune_arg=1&goto arg-ok
+if /i "%1"=="dll"           set dll=1&goto arg-ok
 
 echo Warning: ignoring invalid command line option `%1`.
 
@@ -108,6 +110,7 @@ if defined noperfctr set configure_flags=%configure_flags% --without-perfctr& se
 if defined release_urlbase set release_urlbase_arg=--release-urlbase=%release_urlbase%
 if defined download_arg set configure_flags=%configure_flags% %download_arg%
 if defined enable_vtune_arg set configure_flags=%configure_flags% --enable-vtune-profiling
+if defined dll set configure_flags=%configure_flags% --shared
 
 if "%i18n_arg%"=="full-icu" set configure_flags=%configure_flags% --with-intl=full-icu
 if "%i18n_arg%"=="small-icu" set configure_flags=%configure_flags% --with-intl=small-icu