This fixes a link error on MSVC with --enable-shared.
* gettext-runtime/configure.ac: Define DLL_VARIABLE to empty always.
dnl Put some default definitions into config.h.
AH_BOTTOM([
-/* On Windows, variables that may be in a DLL must be marked specially. */
-#if (defined _MSC_VER && defined WOE32DLL) && !defined IN_RELOCWRAPPER
+/* On Windows, variables that may be in a DLL must be marked specially.
+ But here, the only such variable is 'exit_failure', and it is always
+ built into a static library, never into a shared library. */
+#if defined WOE32DLL && !defined IN_RELOCWRAPPER && 0
# define DLL_VARIABLE __declspec (dllimport)
#else
# define DLL_VARIABLE