From c5f3e4e59958692a8a6d66081523ef767edf4fbe Mon Sep 17 00:00:00 2001
From: Stewart Addison <sxa@uk.ibm.com>
Date: Wed, 16 Nov 2016 14:34:51 +0000
Subject: [PATCH] build: windows sharedlib support

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

Ref: #7802

PR-URL: #7487
Reviewed-By: Alexis Campailla <alexis@janeasystems.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
---
 common.gypi | 29 ++++++++++++++++++++++++++++-
 node.gyp    |  2 +-
 vcbuild.bat |  3 +++
 3 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index f26b66e6483c58..55440bc8fde917 100644
--- a/common.gypi
+++ b/common.gypi
@@ -79,6 +79,20 @@
           ['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': {
@@ -116,11 +130,24 @@
           ['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/node.gyp b/node.gyp
index 52d88e706cd584..f813126054dfc6 100644
--- a/node.gyp
+++ b/node.gyp
@@ -235,7 +235,7 @@
             '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 77c0d01a14f486..a052504b61b639 100644
--- a/vcbuild.bat
+++ b/vcbuild.bat
@@ -37,6 +37,7 @@ set build_release=
 set configure_flags=
 set build_addons=
 set enable_vtune_profiling=
+set dll=
 
 :next-arg
 if "%1"=="" goto args-done
@@ -76,6 +77,7 @@ if /i "%1"=="intl-none"     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_profiling="--enable-vtune-profiling"&goto arg-ok
+if /i "%1"=="dll"           set dll=1&goto arg-ok
 
 echo Error: invalid command line option `%1`.
 exit /b 1
@@ -105,6 +107,7 @@ if defined noetw set configure_flags=%configure_flags% --without-etw& set noetw_
 if defined noperfctr set configure_flags=%configure_flags% --without-perfctr& set noperfctr_msi_arg=/p:NoPerfCtr=1
 if defined release_urlbase set configure_flags=%configure_flags% --release-urlbase=%release_urlbase%
 if defined download_arg set configure_flags=%configure_flags% %download_arg%
+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