Fix build

OBS-URL: https://build.opensuse.org/package/show/network:utilities/wget?expand=0&rev=17

wget.spec

@@ -24,18 +24,19 @@ License:        GPLv3+
 Summary:        A Tool for Mirroring FTP and HTTP Servers
 Url:            http://www.gnu.org/software/wget/
 Group:          Productivity/Networking/Web/Utilities
-Source:         %name-%version.tar.xz
+Source:         %name-%version.tar.bz2
 # PATCH-MISSING-TAG -- See http://wiki.opensuse.org/Packaging/Patches
 Patch0:         wgetrc.patch
 # PATCH-FEATURE-UPSTREAM wget-libproxy.patch dimstar@opensuse.org -- Add libproxy support to wget
 Patch1:         wget-libproxy.patch
 Patch3:         wget-sni.patch
 BuildRequires:  libpng-devel
+%if 0%{suse_version} >= 1110
 BuildRequires:  libproxy-devel
+%endif
 BuildRequires:  openssl-devel
 BuildRequires:  pkg-config
 BuildRequires:  libidn-devel
-BuildRequires:  xz
 PreReq:         %install_info_prereq
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build