exiv2: XMP support needs largefile

XMP code enables largefile unconditionally.

Fixes:
http://autobuild.buildroot.net/results/116/1166068a64733d22a2f891849177ad826347dc9f/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Tested-by: Nicolas Serafini <nicolas.serafini@sensefly.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/exiv2/Config.in

@@ -39,11 +39,12 @@ config BR2_PACKAGE_EXIV2_XMP
 	bool "XMP support"
 	select BR2_PACKAGE_EXPAT
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_LARGEFILE
 	help
 	  Build with XMP support
 
-comment "xmp support needs a toolchain w/ threads"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+comment "xmp support needs a toolchain w/ threads, and largefile"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_LARGEFILE
 
 config BR2_PACKAGE_EXIV2_LENSDATA
 	bool "Nikon lens name database"