Do not try to export/import symbols at all on MinGW - else I can't use the library at least on MinGW 5.1.4

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/libobjc/trunk@27744 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,9 +1,11 @@
 2009-01-31  Nicola Pero <nicola.pero@meta-innovation.com>
 
-	* objc/objc-decls.h: Use BUILD_libobjc_DLL (as defined by
-	gnustep-make), not DLL_EXPORT (as defined by libtool, which we
-	don't use), to decide when to export/import symbols on MinGW32.
-	
+	* objc/objc-decls.h: Reverted last change to get it to compile
+	again on MinGW32.  If we're on Windows, but not MinGW32, use
+	BUILD_libobjc_DLL (as defined by gnustep-make), not DLL_EXPORT (as
+	defined by libtool, which we don't use), to decide when to
+	export/import symbols.
+
 2008-12-19  Nicola Pero <nicola.pero@meta-innovation.com>
 
 	* GNUmakefile (GNUSTEP_CORE_SOFTWARE): Do not set.

objc/objc-decls.h

@@ -27,7 +27,10 @@ Boston, MA 02110-1301, USA.  */
 #ifndef __objc_decls_INCLUDE_GNU
 #define __objc_decls_INCLUDE_GNU
 
-#if (defined (_WIN32) || defined (__WIN32__) || defined (WIN32))
+#if !defined(__MINGW32__) && (defined (_WIN32) || defined (__WIN32__) || defined (WIN32))
+
+# The following code is not needed on MinGW >= 5.1.3 since the compiler will automatically
+# determine which symbols to import/export, at least when compiling using gnustep-make.
 
 #ifdef BUILD_libobjc_DLL /* defined by gnustep-make when compiling libobjc itself */
 #  define objc_EXPORT  __declspec(dllexport)