diff --git a/GL/state.c b/GL/state.c
index 0cab0d8..f4ce58d 100644
--- a/GL/state.c
+++ b/GL/state.c
@@ -671,7 +671,7 @@ const GLbyte *glGetString(GLenum name) {
             return "PowerVR2 CLX2 100mHz";
 
         case GL_VERSION:
-            return "GLdc 1.x";
+            return "1.2 (partial) - GLdc 1.0";
 
         case GL_EXTENSIONS:
             return "GL_ARB_framebuffer_object, GL_ARB_multitexture, GL_ARB_texture_rg, GL_EXT_paletted_texture, GL_EXT_shared_texture_palette, GL_KOS_multiple_shared_palette";
diff --git a/include/gl.h b/include/gl.h
index 8b5b060..5933a60 100644
--- a/include/gl.h
+++ b/include/gl.h
@@ -104,9 +104,6 @@ __BEGIN_DECLS
 #define GL_TEXTURE_WRAP_T       0x2803
 #define GL_TEXTURE_MAG_FILTER   0x2800
 #define GL_TEXTURE_MIN_FILTER   0x2801
-#define GL_TEXTURE_FILTER       GL_TEXTURE_MIN_FILTER
-#define GL_FILTER_NONE             0x0
-#define GL_FILTER_BILINEAR         0x1
 #define GL_REPEAT               0x2901
 #define GL_CLAMP                0x2900
 
@@ -382,9 +379,9 @@ __BEGIN_DECLS
 #define GL_TRUE    1
 
 /* Stubs for portability */
-#define GL_ALPHA_TEST 0
-#define GL_STENCIL_TEST 0
-#define GL_UNPACK_ALIGNMENT 0
+#define GL_ALPHA_TEST                     0x0BC0
+#define GL_STENCIL_TEST                   0x0B90
+#define GL_UNPACK_ALIGNMENT               0x0CF5
 
 #define GLAPI extern
 #define APIENTRY
diff --git a/samples/multitexture_arrays/main.c b/samples/multitexture_arrays/main.c
index e235022..27b57cf 100644
--- a/samples/multitexture_arrays/main.c
+++ b/samples/multitexture_arrays/main.c
@@ -46,13 +46,13 @@ void RenderCallback(GLuint texID0, GLuint texID1) {
     glActiveTextureARB(GL_TEXTURE0_ARB);
     glEnable(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, texID0);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 
     /* Bind multi-texture to GL_TEXTURE1_ARB and set texture parameters */
     glActiveTextureARB(GL_TEXTURE1_ARB);
     glEnable(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, texID1);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 
     /* Set Blending Mode */