diff --git a/doomclassic/doom/d_main.h b/doomclassic/doom/d_main.h
index 455c48c9..cde4c435 100644
--- a/doomclassic/doom/d_main.h
+++ b/doomclassic/doom/d_main.h
@@ -66,9 +66,9 @@ void D_PageDrawer (void);
 void D_AdvanceDemo (void);
 void D_StartTitle (void);
 
-#define R_OK	0x01
-#define X_OK	0x02
-#define W_OK	0x04
+//#define R_OK	0x01
+//#define X_OK	0x02
+//#define W_OK	0x04
 int access(char* name, int val);
 
 
diff --git a/neo/renderer/Material.h b/neo/renderer/Material.h
index e29a4470..c6590b94 100644
--- a/neo/renderer/Material.h
+++ b/neo/renderer/Material.h
@@ -233,17 +233,17 @@ typedef enum
 	STENCIL_OP_DECRWRAP
 } stencilOperation_t;
 
-typedef struct
+struct stencilStage_t
 {
 	// The value to be compared against (if Comp is anything else than always) and/or the value to be written to the buffer
 	// (if either Pass, Fail or ZFail is set to replace).
 	byte ref = 0;
 
-	// An 8 bit mask as an 0–255 integer, used when comparing the reference value with the contents of the buffer
+	// An 8 bit mask as an 0�255 integer, used when comparing the reference value with the contents of the buffer
 	// (referenceValue & readMask) comparisonFunction (stencilBufferValue & readMask).
 	byte readMask = 255;
 
-	// An 8 bit mask as an 0–255 integer, used when writing to the buffer.Note that, like other write masks,
+	// An 8 bit mask as an 0�255 integer, used when writing to the buffer.Note that, like other write masks,
 	// it specifies which bits of stencil buffer will be affected by write
 	// (i.e.WriteMask 0 means that no bits are affected and not that 0 will be written).
 	byte writeMask = 255;
@@ -259,7 +259,7 @@ typedef struct
 
 	// What to do with the contents of the buffer if the stencil test passes, but the depth test fails.
 	stencilOperation_t zFail = STENCIL_OP_KEEP;
-} stencilStage_t;
+};
 // SP End
 
 
diff --git a/neo/renderer/RenderProgs_embedded.h b/neo/renderer/RenderProgs_embedded.h
index 644f9817..820f15e0 100644
--- a/neo/renderer/RenderProgs_embedded.h
+++ b/neo/renderer/RenderProgs_embedded.h
@@ -609,7 +609,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		" *\n"
 		" * The shader has three passes, chained together as follows:\n"
 		" *\n"
-		" *                           |input|------------------·\n"
+		" *                           |input|------------------\n"
 		" *                              v                     |\n"
 		" *                    [ SMAA*EdgeDetection ]          |\n"
 		" *                              v                     |\n"
@@ -619,7 +619,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		" *                              v                     |\n"
 		" *                          |blendTex|                |\n"
 		" *                              v                     |\n"
-		" *                [ SMAANeighborhoodBlending ] <------·\n"
+		" *                [ SMAANeighborhoodBlending ] <------\n"
 		" *                              v\n"
 		" *                           |output|\n"
 		" *\n"
@@ -2072,7 +2072,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		"}\n"
 		"\n"
 		"// Fresnel term F( v, h )\n"
-		"// Fnone( v, h ) = F(0°) = specularColor\n"
+		"// Fnone( v, h ) = F(0) = specularColor\n"
 		"half3 Fresnel_Schlick( half3 specularColor, half vDotN )\n"
 		"{\n"
 		"	return specularColor + ( 1.0 - specularColor ) * pow( 1.0 - vDotN, 5.0 );\n"