media-libs/libpng: add SLOT description to metadata.xml

diff --git a/media-libs/libpng/metadata.xml b/media-libs/libpng/metadata.xml
index ead4d1ccd368cacf143cba35a66b2f773cbf3173..4cbaf67478fa1652fa310bd230cc971b53d968a3 100644 (file)
--- a/media-libs/libpng/metadata.xml
+++ b/media-libs/libpng/metadata.xml
@@ -9,4 +9,13 @@
                <remote-id type="cpe">cpe:/a:libpng:libpng</remote-id>
                <remote-id type="sourceforge">apng</remote-id>
        </upstream>
+       <slots>
+               <slot name="0">For building against. This is the only slot
+                       that provides headers and command line tools.</slot>
+               <slot name="1.2">For binary compatibility, provides libpng12.so.0
+                       only.</slot>
+               <slot name="1.5">For binary compatibility, provides libpng15.so.15
+                       only.</slot>
+               <subslots>Reflect ABI compatibility for libpng.so.</subslots>
+       </slots>
 </pkgmetadata>