-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/aarch64-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/alpha*-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/arm*-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/ia64-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/mips*-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/riscv64-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/s390*-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/sh*-linux/macros
-rm $RPM_BUILD_ROOT%{_rpmlibdir}/platform/sparc*-linux/macros
+%ifnarch aarch64
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/aarch64-linux/macros
+%endif
+
+%ifnarch %{arm}
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/arm*-linux/macros
+%endif
+
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/alpha*-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/ia64-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/mips*-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/riscv64-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/s390*-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/sh*-linux/macros
+%{__rm} $RPM_BUILD_ROOT%{_rpmlibdir}/platform/sparc*-linux/macros
+
+cat <<'EOF' > $RPM_BUILD_ROOT%{_sysconfdir}/rpm/platform
+%ifarch x32
+%{_target_cpu}-%{_target_vendor}-linux-gnux32
+%else
+%{_target_cpu}-%{_target_vendor}-linux
+%endif
+EOF