Fix build failures on aarch64

Global build flags are breaking Objc compilation, since the corresponding
"-fPIC" and "-fPIE" flags are not set for this language.
The flags are therefore disabled completely, as this uncovers the fact
that automake tests are covering more than the distribution actually
supports.

Reviewed-by: Jonathan Wakely <jwakely@redhat.com>

automake.spec

@@ -1,5 +1,13 @@
 %global api_version 1.16
 
+# redhat-rpm-config sets CFLAGS, CXXFLAGS and LDFLAGS, but not
+# OBJCFLAGS. This means that Obj-C tests will be compiled without hardening
+# flags, and then fail when linked with the hardened linker flags.
+# We therefore need to disable build flags to be able to test automake itself.
+# Since the automake executables are all interpreted languages, they aren't
+# compiled and so the build flags only affect the tests anyway.
+%undefine _auto_set_build_flags
+
 # do not mangle shebang in files which are part of bootstraped project
 %global __brp_mangle_shebangs_exclude_from /usr/share/automake-%{api_version}
 
@@ -15,7 +23,7 @@ Summary:    A GNU tool for automatically creating Makefiles
 Name:       automake
 # Any bump here requires libtool rebuild, rhbz#1813010
 Version:    %{api_version}.5
-Release:    8%{?dist}
+Release:    9%{?dist}
 
 # docs ~> GFDL, sources ~> GPLv2+, mkinstalldirs ~> PD and install-sh ~> MIT
 License:    GPLv2+ and GFDL and Public Domain and MIT
@@ -131,6 +139,9 @@ make -k %{?_smp_mflags} check %{?TESTS_FLAGS: TESTS="%{TESTS_FLAGS}"} \
 
 
 %changelog
+* Wed Aug 03 2022 Frederic Berat <fberat@redhat.com> - 1.16.5-9
+- Fix tests environment failures due to LDFLAGS being set globally
+
 * Wed Jul 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.16.5-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild