Index: quesoglc-0.7.2/src/scalable.c
===================================================================
--- quesoglc-0.7.2.orig/src/scalable.c
+++ quesoglc-0.7.2/src/scalable.c
@@ -597,15 +597,14 @@ void __glcRenderCharScalable(__GLCfont*
     gluTessProperty(tess, GLU_TESS_BOUNDARY_ONLY, GL_FALSE);
 
     gluTessCallback(tess, GLU_TESS_ERROR,
-			(void (CALLBACK *) (GLenum))__glcCallbackError);
+			(void (CALLBACK *) (void))__glcCallbackError);
     gluTessCallback(tess, GLU_TESS_VERTEX_DATA,
-		    (void (CALLBACK *) (void*, void*))__glcVertexCallback);
+		    (void (CALLBACK *) (void))__glcVertexCallback);
     gluTessCallback(tess, GLU_TESS_COMBINE_DATA,
-		    (void (CALLBACK *) (GLdouble[3], void*[4],
-					GLfloat[4], void**, void*))
+		    (void (CALLBACK *) (void))
 		    __glcCombineCallback);
     gluTessCallback(tess, GLU_TESS_BEGIN_DATA,
-		    (void (CALLBACK *) (GLenum, void*))__glcBeginCallback);
+		    (void (CALLBACK *) (void))__glcBeginCallback);
 
     gluTessNormal(tess, 0., 0., 1.);
 
Index: quesoglc-0.7.2/src/unicode.c
===================================================================
--- quesoglc-0.7.2.orig/src/unicode.c
+++ quesoglc-0.7.2/src/unicode.c
@@ -650,7 +650,7 @@ GLCchar32* __glcConvertToVisualUcs4(__GL
 
   if (length) {
     visualString = string + length + 1;
-    if (!fribidi_log2vis(string, length, &base, visualString, NULL, NULL,
+    if (!fribidi_log2vis(string, length, (void*)&base, visualString, NULL, NULL,
                          NULL)) {
       __glcRaiseError(GLC_RESOURCE_ERROR);
       return NULL;
@@ -762,7 +762,7 @@ GLCchar32* __glcConvertCountedStringToVi
   }
 
   visualString = string + inCount;
-  if (!fribidi_log2vis(string, inCount, &base, visualString, NULL, NULL,
+  if (!fribidi_log2vis(string, inCount, (void*)&base, visualString, NULL, NULL,
 		       NULL)) {
     __glcRaiseError(GLC_RESOURCE_ERROR);
     return NULL;