community/sane: build and package escl backend

build is enabled with the cups and poppler dependency

community/sane/APKBUILD

@@ -4,20 +4,20 @@
 pkgname=sane
 _pkgname=sane-backends
 pkgver=1.0.31
-pkgrel=0
+pkgrel=1
 pkgdesc="Scanner Access Now Easy - universal scanner interface"
 url="http://www.sane-project.org/"
 arch="all"
 license="GPL-2.0-or-later GPL-2.0-or-later-with-sane-exception Public-Domain"
 makedepends="diffutils file libtool libusb-dev v4l-utils-dev net-snmp-dev
-	avahi-dev libpng-dev libjpeg-turbo-dev tiff-dev libgphoto2-dev
-	linux-headers libieee1284-dev libxml2-dev"
+	avahi-dev curl-dev libpng-dev libjpeg-turbo-dev tiff-dev libgphoto2-dev
+	poppler-dev linux-headers libieee1284-dev libxml2-dev"
 install="$pkgname-saned.pre-install $pkgname.pre-install"
 pkgusers="saned"
 pkggroups="scanner"
 _backends="abaton agfafocus apple artec artec_eplus48u as6e avision bh canon
 	canon630u canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc25
-	dc210 dc240 dell1600n_net dmc epjitsu epson epson2 epsonds fujitsu
+	dc210 dc240 dell1600n_net dmc epjitsu epson epson2 epsonds escl fujitsu
 	genesys gphoto2 gt68xx hp hp3500 hp3900 hp4200 hp5400 hp5590 hpsj5s
 	hpljm1005 hs2p ibm kodak kodakaio kvs1025 kvs20xx kvs40xx leo lexmark
 	ma1509 magicolor matsushita microtek microtek2 mustek mustek_pp mustek_usb