graphics/maim: Add a missing library dependency

graphics/maim/Makefile

@@ -1,6 +1,7 @@
 PORTNAME=	maim
 DISTVERSIONPREFIX=	v
 DISTVERSION=	5.7.4
+PORTREVISION=	1
 CATEGORIES=	graphics
 
 MAINTAINER=	0mp@FreeBSD.org
@@ -12,7 +13,8 @@ BUILD_DEPENDS=	${LOCALBASE}/include/glm/glm.hpp:math/glm
 LIB_DEPENDS=	libicuuc.so:devel/icu \
 		libImlib2.so:graphics/imlib2 \
 		libpng.so:graphics/png \
-		libslopy.so:x11/slop
+		libslopy.so:x11/slop \
+		libwebp.so:graphics/webp
 
 USES=		cmake compiler:c++11-lang gl jpeg xorg
 USE_GITHUB=	yes