Adds support for the library_dirs key, which appears in the documentation but was never actually im…

pylib/gyp/generator/msvs.py

Index: pylib/gyp/generator/msvs.py
===================================================================
--- pylib/gyp/generator/msvs.py	(revision 1429)
+++ pylib/gyp/generator/msvs.py	(working copy)
@@ -1077,7 +1077,7 @@
   """Returns the list of directories to be used for #include directives.
 
   Arguments:
-    config: The dictionnary that defines the special processing to be done
+    config: The dictionary that defines the special processing to be done
             for this configuration.
   Returns:
     The list of directory paths.
@@ -1093,6 +1093,20 @@
   return include_dirs, resource_include_dirs
 
 
+def _GetLibraryDirs(config):
+  """Returns the list of directories to be used for library search paths.
+
+  Arguments:
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+  Returns:
+    The list of directory paths.
+  """
+  library_dirs = config.get('library_dirs', [])
+  library_dirs = _FixPaths(library_dirs)
+  return library_dirs
+
+
 def _GetLibraries(spec):
   """Returns the list of libraries for this configuration.
 
@@ -2738,6 +2752,7 @@
     msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(msvs_settings)
   include_dirs, resource_include_dirs = _GetIncludeDirs(configuration)
   libraries = _GetLibraries(spec)
+  library_dirs = _GetLibraryDirs(configuration)
   out_file, _, msbuild_tool = _GetOutputFilePathAndTool(spec)
   defines = _GetDefines(configuration)
   if converted:
@@ -2769,6 +2784,8 @@
               'AdditionalIncludeDirectories', resource_include_dirs)
   # Add in libraries.
   _ToolAppend(msbuild_settings, 'Link', 'AdditionalDependencies', libraries)
+  _ToolAppend(msbuild_settings, 'Link', 'AdditionalLibraryDirectories',
+              library_dirs)
   if out_file:
     _ToolAppend(msbuild_settings, msbuild_tool, 'OutputFile', out_file,
                 only_if_unset=True)