Add the flags to %install section too

In this package, build runs twice. Once in %build phase, once again
in the %install phase. Although in the %install phase, make should
be happy with the results obtained in the previous phase and don't
do anything, it obviously happens that the bits are rebuilt. Not
always, but often.

Since the env variables are reset in next phase, binaries built in
%install phase (without flags) might clobber the original ones and
cause an annocheck fail.

Let's make sure that the flags are always set.

Related: rhbz#2038853
Signed-off-by: Michael Petlan <mpetlan@redhat.com>

libtracefs.spec

@@ -11,7 +11,7 @@
 
 Name: libtracefs
 Version: 1.0.2
-Release: 6%{?dist}
+Release: 7%{?dist}
 License: LGPLv2+ and GPLv2+
 Summary: Library for access kernel tracefs
 
@@ -50,6 +50,8 @@ export GCCLDFLAGS="-Wl,-z,now"
 %make_build prefix=%{_prefix} libdir=%{_libdir} all 
 
 %install
+%set_build_flags
+export GCCLDFLAGS="-Wl,-z,now"
 %make_install prefix=%{_prefix} libdir=%{_libdir}
 rm -rf %{buildroot}/%{_libdir}/libtracefs.a
 
@@ -65,6 +67,10 @@ rm -rf %{buildroot}/%{_libdir}/libtracefs.a
 %{_libdir}/%{name}.so
 
 %changelog
+* Fri Jan 14 2022 Michael Petlan <mpetlan@redhat.com> - 1.0.2-7
+- Harden library linking; add the flags to install section too
+  Related: rhbz#2038853
+
 * Wed Jan 12 2022 Michael Petlan <mpetlan@redhat.com> - 1.0.2-6
 - Harden library linking
   Related: rhbz#2038853