Version the Headers so DMagick can be used with older versions of MagickCore.

1 files changed, 7 insertions, 1 deletions

diff --git a/dmagick/c/quantize.d b/dmagick/c/quantize.d
index 9ab262f..53983b9 100644
--- a/dmagick/c/quantize.d
+++ b/dmagick/c/quantize.d
@@ -3,6 +3,7 @@ module dmagick.c.quantize;
 import dmagick.c.colorspace;
 import dmagick.c.image;
 import dmagick.c.magickType;
+import dmagick.c.magickVersion;
 
 extern(C)
 {
@@ -41,7 +42,12 @@ extern(C)
 	MagickBooleanType CompressImageColormap(Image*);
 	MagickBooleanType GetImageQuantizeError(Image*);
 	MagickBooleanType PosterizeImage(Image*, const size_t, const MagickBooleanType);
-	MagickBooleanType PosterizeImageChannel(Image*, const ChannelType, const size_t, const MagickBooleanType);
+
+	static if ( MagickLibVersion >= 0x668 )
+	{
+		MagickBooleanType PosterizeImageChannel(Image*, const ChannelType, const size_t, const MagickBooleanType);
+	}
+
 	MagickBooleanType QuantizeImage(const(QuantizeInfo)*, Image*);
 	MagickBooleanType QuantizeImages(const(QuantizeInfo)*, Image*);
 	MagickBooleanType RemapImage(const(QuantizeInfo)*, Image*, const(Image)*);