[build] Fix DLL builds in Visual C++ project.

* build/windows/vc2010/freetype.vcxproj: Use DynamicLibrary in Debug
and Release configurations.
* include/freetype/config/ftconfig.h (FT_EXPORT, FT_EXPORT_DEF)
[_DLL]: Use Visual C++ extensions.
diff --git a/ChangeLog b/ChangeLog
index 64c39dd..0aff98f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2017-09-19  Alexei Podtelezhnikov  <apodtele@gmail.com>
+
+	[build] Fix DLL builds in Visual C++ project.
+
+	* build/windows/vc2010/freetype.vcxproj: Use DynamicLibrary in Debug
+	and Release configurations.
+	* include/freetype/config/ftconfig.h (FT_EXPORT, FT_EXPORT_DEF)
+	[_DLL]: Use Visual C++ extensions.
+
 2017-09-19  John Tytgat  <John.Tytgat@esko.com>
 
 	[cff] Fix family name logic of pure CFF fontdata (#52056).
diff --git a/builds/windows/vc2010/freetype.vcxproj b/builds/windows/vc2010/freetype.vcxproj
index 4f212e1..f357c75 100644
--- a/builds/windows/vc2010/freetype.vcxproj
+++ b/builds/windows/vc2010/freetype.vcxproj
@@ -81,12 +81,12 @@
   </PropertyGroup>

   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

-    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

     <UseOfMfc>false</UseOfMfc>

     <CharacterSet>MultiByte</CharacterSet>

   </PropertyGroup>

   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

-    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

     <UseOfMfc>false</UseOfMfc>

     <CharacterSet>MultiByte</CharacterSet>

   </PropertyGroup>

@@ -111,12 +111,12 @@
     <CharacterSet>MultiByte</CharacterSet>

   </PropertyGroup>

   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

-    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

     <UseOfMfc>false</UseOfMfc>

     <CharacterSet>MultiByte</CharacterSet>

   </PropertyGroup>

   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

-    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

     <UseOfMfc>false</UseOfMfc>

     <CharacterSet>MultiByte</CharacterSet>

   </PropertyGroup>

diff --git a/devel/ftoption.h b/devel/ftoption.h
index 9f9cac1..11a2d1f 100644
--- a/devel/ftoption.h
+++ b/devel/ftoption.h
@@ -270,48 +270,6 @@
 
   /*************************************************************************/
   /*                                                                       */
-  /* DLL export compilation                                                */
-  /*                                                                       */
-  /*   When compiling FreeType as a DLL, some systems/compilers need a     */
-  /*   special keyword in front OR after the return type of function       */
-  /*   declarations.                                                       */
-  /*                                                                       */
-  /*   Two macros are used within the FreeType source code to define       */
-  /*   exported library functions: FT_EXPORT and FT_EXPORT_DEF.            */
-  /*                                                                       */
-  /*     FT_EXPORT( return_type )                                          */
-  /*                                                                       */
-  /*       is used in a function declaration, as in                        */
-  /*                                                                       */
-  /*         FT_EXPORT( FT_Error )                                         */
-  /*         FT_Init_FreeType( FT_Library*  alibrary );                    */
-  /*                                                                       */
-  /*                                                                       */
-  /*     FT_EXPORT_DEF( return_type )                                      */
-  /*                                                                       */
-  /*       is used in a function definition, as in                         */
-  /*                                                                       */
-  /*         FT_EXPORT_DEF( FT_Error )                                     */
-  /*         FT_Init_FreeType( FT_Library*  alibrary )                     */
-  /*         {                                                             */
-  /*           ... some code ...                                           */
-  /*           return FT_Err_Ok;                                           */
-  /*         }                                                             */
-  /*                                                                       */
-  /*   You can provide your own implementation of FT_EXPORT and            */
-  /*   FT_EXPORT_DEF here if you want.  If you leave them undefined, they  */
-  /*   will be later automatically defined as `extern return_type' to      */
-  /*   allow normal compilation.                                           */
-  /*                                                                       */
-  /*   Do not #undef these macros here since the build system might define */
-  /*   them for certain configurations only.                               */
-  /*                                                                       */
-/* #define FT_EXPORT(x)      extern x */
-/* #define FT_EXPORT_DEF(x)  x */
-
-
-  /*************************************************************************/
-  /*                                                                       */
   /* Glyph Postscript Names handling                                       */
   /*                                                                       */
   /*   By default, FreeType 2 is compiled with the `psnames' module.  This */
diff --git a/include/freetype/config/ftconfig.h b/include/freetype/config/ftconfig.h
index 889aebf..fa4ac15 100644
--- a/include/freetype/config/ftconfig.h
+++ b/include/freetype/config/ftconfig.h
@@ -410,7 +410,9 @@
 
 #ifndef FT_EXPORT
 
-#ifdef __cplusplus
+#if defined( _DLL )
+#define FT_EXPORT( x )  __declspec(dllexport)  x
+#elif defined( __cplusplus )
 #define FT_EXPORT( x )  extern "C"  x
 #else
 #define FT_EXPORT( x )  extern  x
@@ -421,7 +423,9 @@
 
 #ifndef FT_EXPORT_DEF
 
-#ifdef __cplusplus
+#if defined( _DLL )
+#define FT_EXPORT_DEF( x )  __declspec(dllexport)  x
+#elif defined( __cplusplus )
 #define FT_EXPORT_DEF( x )  extern "C"  x
 #else
 #define FT_EXPORT_DEF( x )  extern  x
diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h
index 2fbe80b..cb10b1d 100644
--- a/include/freetype/config/ftoption.h
+++ b/include/freetype/config/ftoption.h
@@ -270,48 +270,6 @@
 
   /*************************************************************************/
   /*                                                                       */
-  /* DLL export compilation                                                */
-  /*                                                                       */
-  /*   When compiling FreeType as a DLL, some systems/compilers need a     */
-  /*   special keyword in front OR after the return type of function       */
-  /*   declarations.                                                       */
-  /*                                                                       */
-  /*   Two macros are used within the FreeType source code to define       */
-  /*   exported library functions: FT_EXPORT and FT_EXPORT_DEF.            */
-  /*                                                                       */
-  /*     FT_EXPORT( return_type )                                          */
-  /*                                                                       */
-  /*       is used in a function declaration, as in                        */
-  /*                                                                       */
-  /*         FT_EXPORT( FT_Error )                                         */
-  /*         FT_Init_FreeType( FT_Library*  alibrary );                    */
-  /*                                                                       */
-  /*                                                                       */
-  /*     FT_EXPORT_DEF( return_type )                                      */
-  /*                                                                       */
-  /*       is used in a function definition, as in                         */
-  /*                                                                       */
-  /*         FT_EXPORT_DEF( FT_Error )                                     */
-  /*         FT_Init_FreeType( FT_Library*  alibrary )                     */
-  /*         {                                                             */
-  /*           ... some code ...                                           */
-  /*           return FT_Err_Ok;                                           */
-  /*         }                                                             */
-  /*                                                                       */
-  /*   You can provide your own implementation of FT_EXPORT and            */
-  /*   FT_EXPORT_DEF here if you want.  If you leave them undefined, they  */
-  /*   will be later automatically defined as `extern return_type' to      */
-  /*   allow normal compilation.                                           */
-  /*                                                                       */
-  /*   Do not #undef these macros here since the build system might define */
-  /*   them for certain configurations only.                               */
-  /*                                                                       */
-/* #define FT_EXPORT(x)      extern x */
-/* #define FT_EXPORT_DEF(x)  x */
-
-
-  /*************************************************************************/
-  /*                                                                       */
   /* Glyph Postscript Names handling                                       */
   /*                                                                       */
   /*   By default, FreeType 2 is compiled with the `psnames' module.  This */