pkg: mkdir -p "${PKG_TAPF:-/usr}"/{bin,lib}
cp -a "$(PKG_DEST_ _libpng)"/"${PKG_TAPF:-/usr}"/include "${PKG_DEST}"/"${PKG_TAPF:-/usr}"/
cp -a "$(PKG_DEST_ _libpng)"/"${PKG_TAPF:-/usr}"/lib/pkgconfig "${PKG_DEST}"/"${PKG_TAPF:-/usr}"/lib
cp -a "$(PKG_DEST_ _libpng)"/"${PKG_TAPF:-/usr}"/bin/*-config "${PKG_DEST}"/"${PKG_TAPF:-/usr}"/bin