Do not define LBR08 macros in png.c for Q8 builds.

diff --git a/coders/png.c b/coders/png.c
index fb55ecb15dbfbdcd0cf2a60f6c9a3b3627d17af0..24b1c40af7837309e6d62e2d20712a282e7c653d 100644 (file)
--- a/coders/png.c
+++ b/coders/png.c
@@ -422,6 +422,7 @@
         }
 
 
+#if MAGICKCORE_QUANTUM_DEPTH > 8
 /* LBR08: Replicate top 8 bits */
 
 #define LBR08PacketRed(pixelpacket) \
@@ -499,6 +500,7 @@
         LBR08PixelRGB((pixel)); \
         LBR08PixelAlpha((pixel)); \
         }
+#endif /* MAGICKCORE_QUANTUM_DEPTH > 8 */
 
 
 #if MAGICKCORE_QUANTUM_DEPTH > 16