spice-gtk: just -Wno-error is not enough, also fix dependency

[ci skip]

srcpkgs/spice-gtk/template

@@ -1,7 +1,7 @@
 # Template file for 'spice-gtk'
 pkgname=spice-gtk
 version=0.37
-revision=2
+revision=3
 build_style=meson
 build_helper="gir"
 configure_args="-Dintrospection=$(vopt_if gir enabled disabled)
@@ -23,7 +23,7 @@ homepage="https://spice-space.org"
 distfiles="https://spice-space.org/download/gtk/${pkgname}-${version}.tar.bz2"
 checksum=1f28b706472ad391cda79a93fd7b4c7a03e84b88fc46ddb35dddbe323c923bb7
 
-CFLAGS="-Wno-error"
+CFLAGS="-Wno-error -Wno-error=unused-but-set-variable"
 
 build_options="gir vala"
 build_options_default="gir vala"
@@ -34,7 +34,7 @@ esac
 
 spice-gtk-devel_package() {
 	depends="gtk+3-devel pixman-devel libressl-devel opus-devel
-	 libva-devel libsasl-devel lz4-devel usbredir-devel phodav-devel
+	 libva-devel libsasl-devel liblz4-devel usbredir-devel phodav-devel
 	 json-glib-devel gstreamer1-devel gst-plugins-base1-devel
 	 $(vopt_if gir libgirepository-devel) ${sourcepkg}-${version}_${revision}"
 	short_desc+=" - development files"