audio/mumble-server: fix build with Ice with modern LLVM "no template named...

audio/mumble-server: fix build with Ice with modern LLVM "no template named 'binary_function' in namespace 'std'; did you mean '__binary_function'?"

PR:		279873

audio/mumble-server/Makefile

 PORTNAME=	mumble-server
 DISTVERSION=	1.5.634
+PORTREVISION=	1
 CATEGORIES=	audio net
 MASTER_SITES=	https://github.com/${PORTNAME:S/-server//}-voip/${PORTNAME:S/-server//}/releases/download/v${DISTVERSION}/
 DISTNAME=	${PORTNAME:S/-server//}-${DISTVERSION}
@@ -42,7 +43,7 @@ ICE_DESC=		Ice Support
 AVAHI_LIB_DEPENDS=	libdns_sd.so:net/avahi-libdns
 AVAHI_CMAKE_BOOL=	zeroconf
 
-ICE_LIB_DEPENDS=	libIce.so:devel/ice
+ICE_LIB_DEPENDS=	libIce.so:devel/ice37
 ICE_CMAKE_BOOL=		ice
 
 LTO_CMAKE_BOOL=		lto