radeon/r300: fix warnings

src/mesa/drivers/dri/r300/r300_tex.h

@@ -37,6 +37,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 extern void r300SetDepthTexMode(struct gl_texture_object *tObj);
 
+extern void r300SetTexBuffer(__DRIcontext *pDRICtx, GLint target,
+			     __DRIdrawable *dPriv);
+
 extern void r300SetTexOffset(__DRIcontext *pDRICtx, GLint texname,
 			     unsigned long long offset, GLint depth,
 			     GLuint pitch);

src/mesa/drivers/dri/radeon/radeon_screen.c

@@ -357,9 +357,6 @@ static const __DRItexOffsetExtension r300texOffsetExtension = {
    r300SetTexOffset,
 };
 
-void r300SetTexBuffer(__DRIcontext *pDRICtx,
-                      GLint target,
-                      __DRIdrawable *dPriv);
 static const __DRItexBufferExtension r300TexBufferExtension = {
     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
    r300SetTexBuffer,

src/mesa/drivers/dri/radeon/radeon_texture.c

@@ -31,6 +31,7 @@
 #include "main/glheader.h"
 #include "main/imports.h"
 #include "main/context.h"
+#include "main/convolve.h"
 #include "main/mipmap.h"
 #include "main/texcompress.h"
 #include "main/texformat.h"