Const correct (most) strings

At least those cases that are reported by gcc and/or clang.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/opengl.h b/src/opengl.h
index c5262be..9beb239 100644
--- a/src/opengl.h
+++ b/src/opengl.h
@@ -33,9 +33,9 @@ void ThisFramesRenderingHasFinished();
 void D3D_SkyPolygon_Output(POLYHEADER *inputPolyPtr, RENDERVERTEX *renderVerticesPtr);
 void D3D_DrawBackdrop();
 void D3D_FadeDownScreen(int brightness, int colour);
-void RenderString(char *stringPtr, int x, int y, int colour);
-void RenderStringCentred(char *stringPtr, int centreX, int y, int colour);
-void RenderStringVertically(char *stringPtr, int centreX, int bottomY, int colour);
+void RenderString(const char *stringPtr, int x, int y, int colour);
+void RenderStringCentred(const char *stringPtr, int centreX, int y, int colour);
+void RenderStringVertically(const char *stringPtr, int centreX, int bottomY, int colour);
 void D3D_DecalSystem_Setup();
 void D3D_DecalSystem_End();
 void SecondFlushD3DZBuffer();