swiften: remove scons from hostmakedepends

srcpkgs/swiften/patches/fix-gcc8.patch

@@ -0,0 +1,10 @@
+--- Sluift/main.cpp
++++ Sluift/main.cpp
+@@ -20,6 +20,7 @@
+ #include <Sluift/StandardTerminal.h>
+ #include <Sluift/sluift.h>
+ #include <Sluift/Lua/LuaUtils.h>
++#include <iostream>
+ #ifdef HAVE_EDITLINE
+ #include <Sluift/EditlineTerminal.h>
+ #endif

srcpkgs/swiften/template

@@ -2,8 +2,8 @@
 pkgname=swiften
 version=3.0
 revision=8
+wrksrc="swift-${version}"
 build_style=scons
-hostmakedepends="scons"
 makedepends="boost-devel libressl-devel libxml2-devel libidn-devel"
 short_desc="XMPP library for C++"
 maintainer="John Regan <john@jrjrtech.com>"
@@ -11,8 +11,6 @@ license="GPL-3"
 homepage="http://swift.im/"
 distfiles="http://swift.im/git/swift/snapshot/swift-${version}.tar.bz2"
 checksum=2e48f081d337f471b4eba7c0c807a7b640216a76ed3568ced55abb5b927c7fd2
-wrksrc="swift-${version}"
-make_build_targets="Swiften"
 
 CXXFLAGS="-I${XBPS_CROSS_BASE}/usr/include/libxml2 -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SIGNALS_NO_DEPRECATION_WARNING=1"
 _scons_options="assertions=1 build_examples=1 max_jobs=1 optimize=1 debug=0 swiften_dll=1"