--- a/modules/graphics/src/main/native-font/pango.c
+++ b/modules/graphics/src/main/native-font/pango.c
@@ -225,7 +225,7 @@ JNIEXPORT jboolean JNICALL OS_NATIVE(FcConfigAppFontAddFile)
         if (text) {
 //            rc = (jboolean)FcConfigAppFontAddFile(arg0, text);
             if (fp) {
-                rc = (jboolean)((jboolean (*)(void *, const char *))fp)(arg0, text);
+                rc = (jboolean)((jboolean (*)(void *, const char *))fp)((void *)(intptr_t)arg0, text);
             }
             (*env)->ReleaseStringUTFChars(env, arg1, text);
         }
--- a/modules/graphics/src/main/native-prism-es2/x11/X11GLContext.c
+++ b/modules/graphics/src/main/native-prism-es2/x11/X11GLContext.c
@@ -275,7 +275,7 @@ JNIEXPORT jlong JNICALL Java_com_sun_prism_es2_X11GLContext_nInitialize
                 dlsym(RTLD_DEFAULT, "glXSwapIntervalSGI");
 
         if (ctxInfo->glXSwapIntervalSGI == NULL) {
-            ctxInfo->glXSwapIntervalSGI = glXGetProcAddress("glXSwapIntervalSGI");
+            ctxInfo->glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)glXGetProcAddress("glXSwapIntervalSGI");
         }
 
     }