- add gd_arc to w32 script

ext/gd/config.w32

@@ -24,7 +24,7 @@ if (PHP_GD != "no") {
 				WARNING("t1lib not enabled; libraries and headers not found");
 			}
 		}
-		
+
 		CHECK_LIB("User32.lib", "gd", PHP_GD);
 		CHECK_LIB("Gdi32.lib", "gd", PHP_GD);
 
@@ -33,7 +33,7 @@ if (PHP_GD != "no") {
 			gdcache.c gdfontg.c gdfontl.c gdfontmb.c gdfonts.c gdfontt.c \
 			gdft.c gd_gd2.c gd_gd.c gd_gif_in.c gd_gif_out.c gdhelpers.c gd_io.c gd_io_dp.c \
 			gd_io_file.c gd_io_ss.c gd_jpeg.c gdkanji.c gd_png.c gd_ss.c \
-			gdtables.c gd_topal.c gd_wbmp.c gdxpm.c wbmp.c xbm.c gd_security.c gd_pixelate.c", "gd");
+			gdtables.c gd_topal.c gd_wbmp.c gdxpm.c wbmp.c xbm.c gd_security.c gd_pixelate.c gd_arc.c", "gd");
 		AC_DEFINE('HAVE_LIBGD', 1, 'GD support');
 		ADD_FLAG("CFLAGS_GD", " \
 /D HAVE_GD_BUNDLED=1  \