Added native and emulated S3TC support.
diff --git a/configure.ac b/configure.ac
index 5fa645d..e9e4df8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1023,6 +1023,7 @@
WINE_GET_SONAME(Xrandr,XRRQueryExtension,[$X_LIBS -lXext -lX11 $X_EXTRA_LIBS])
WINE_GET_SONAME(freetype,FT_Init_FreeType,[$X_LIBS])
WINE_GET_SONAME(GL,glXQueryExtension,[$X_LIBS $X_EXTRA_LIBS])
+ WINE_GET_SONAME(txc_dxtn,fetch_2d_texel_rgba_dxt1)
WINE_GET_SONAME(cups,cupsGetDefault)
WINE_GET_SONAME(jack,jack_client_new)
WINE_GET_SONAME(fontconfig,FcInit)