[atk] MSVC Builds: Speed Up Release Builds

[Chun-wei Fan <fanchunwei src gnome org>]

commit 4126ce605881bd8116756ddf99d12cddaf7c1aa5
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Mar 5 17:40:58 2015 +0800

    MSVC Builds: Speed Up Release Builds
    
    Use the multi-processor compilation option for the compiler, which can cut
    down build times of release builds by quite a bit.  This would emit a brief
    warning for debug builds as they use /Gm, but otherwise the build would
    continue normally.

 build/win32/vs10/atk-build-defines.props  |    1 +
 build/win32/vs9/atk-build-defines.vsprops |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/build/win32/vs10/atk-build-defines.props b/build/win32/vs10/atk-build-defines.props
index a0bec90..ff3ab78 100644
--- a/build/win32/vs10/atk-build-defines.props
+++ b/build/win32/vs10/atk-build-defines.props
@@ -16,6 +16,7 @@
       
<AdditionalIncludeDirectories>..\..\..;..\..\..\atk;$(GLibEtcInstallRoot)\include;$(GLibEtcInstallRoot)\include\glib-2.0;$(GLibEtcInstallRoot)\lib\glib-2.0\include\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       
<PreprocessorDefinitions>HAVE_CONFIG_H;G_DISABLE_SINGLE_INCLUDES;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ForcedIncludeFiles>msvc_recommended_pragmas.h;%(ForcedIncludeFiles)</ForcedIncludeFiles>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       
<AdditionalDependencies>glib-2.0.lib;gobject-2.0.lib;gmodule-2.0.lib;intl.lib;%(AdditionalDependencies)</AdditionalDependencies>
diff --git a/build/win32/vs9/atk-build-defines.vsprops b/build/win32/vs9/atk-build-defines.vsprops
index 351d19e..76665ce 100644
--- a/build/win32/vs9/atk-build-defines.vsprops
+++ b/build/win32/vs9/atk-build-defines.vsprops
@@ -12,6 +12,7 @@
                
AdditionalIncludeDirectories="..\..\..;..\..\..\atk;$(GLibEtcInstallRoot)\include;$(GLibEtcInstallRoot)\include\glib-2.0;$(GLibEtcInstallRoot)\lib\glib-2.0\include\"
                PreprocessorDefinitions="HAVE_CONFIG_H;G_DISABLE_SINGLE_INCLUDES"
                ForcedIncludeFiles="msvc_recommended_pragmas.h"
+               AdditionalOptions="/MP"
        />
        <Tool
                Name="VCLinkerTool"