!6 fix rpm build error

From: @crrs666 
Reviewed-by: @LemmyHuang 
Signed-off-by: @LemmyHuang

xdp-tools.spec

@@ -1,6 +1,12 @@
+# since strip in binutils fails to strip bpf objects in this package
+# use eu-strip of elfutils instead
+%global __strip /usr/bin/eu-strip
+# eu-strip cannot strip static libs
+# use strip for static libs
+%global __brp_strip_static_archive %{_rpmconfigdir}/brp-strip-static-archive /usr/bin/strip
 Name:             xdp-tools
 Version:          1.0.1
-Release:          1%{?dist}
+Release:          2%{?dist}
 Summary:          Utilities and example programs for use with XDP
 %global _soversion 1.0.0
 
@@ -20,6 +26,7 @@ BuildRequires:    pkgconfig
 BuildRequires:    m4
 BuildRequires:    emacs-nox
 BuildRequires:    wireshark-cli
+BuildRequires:    elfutils
 
 # Always keep xdp-tools and libxdp packages in sync
 Requires:         libxdp = %{version}-%{release}
@@ -82,8 +89,6 @@ export MANDIR='%{_mandir}'
 export DATADIR='%{_datadir}'
 export HDRDIR='%{_includedir}/xdp'
 make install V=1
-strip %{buildroot}%{_libdir}/{libxdp.so,libxdp.so.1.0.0}
-strip %{buildroot}%{_sbindir}/{xdpdump,xdp-loader,xdp-filter}
 
 %files
 %{_sbindir}/xdp-filter
@@ -110,6 +115,9 @@ strip %{buildroot}%{_sbindir}/{xdpdump,xdp-loader,xdp-filter}
 %{_libdir}/pkgconfig/libxdp.pc
 
 %changelog
+* Wed Apr 20 2022 Di Wang <wangdi@kylinos.cn> 1.0.1-2
+- workaround for stripping failure of bpf objects by binutils
+
 * Fri Sep 10 2021 Pengju Jiang <jiangpengju2@huawei.com> 1.0.1-1
 - solve the strip problem of dark conversion compilation