gutenprint: add gutenprint as a mandatory package.

* use the shared library libgutenprint.so
* remove the xml data files from the tree and the Haiku package.

build/jam/BuildFeatures

@@ -210,7 +210,7 @@ if [ IsPackageAvailable gutenprint_devel ] {
 			runtime: lib
 		file: devel gutenprint_devel
 			depends: base
-			library: $(developLibDir)/libgutenprint.a
+			library: $(developLibDir)/libgutenprint.so
 			headers: $(developHeadersDir) $(developHeadersDir)/gutenprint
 		;
 

build/jam/packages/Haiku

@@ -140,11 +140,6 @@ SEARCH on $(postInstallFiles)
 	= [ FDirName $(HAIKU_TOP) data system boot post_install ] ;
 AddFilesToPackage boot post-install : $(postInstallFiles) ;
 
-# Gutenprint data files
-CopyDirectoryToPackage data
-	: [ FDirName $(HAIKU_TOP) src libs print libgutenprint src xml ]
-	: gutenprint : -x *.c -x Makefile.am -x Makefile.in ;
-
 # artwork and sounds
 local logoArtwork =
 	$(HAIKU_INCLUDE_TRADEMARKS)"HAIKU logo - white on blue - big.png"