Fix FTBFS due to missing buildreq perl-devel

Also, simplify find commands using -empty and -delete

perl-YAML-Syck.spec

@@ -1,13 +1,18 @@
 Name:           perl-YAML-Syck
 Version:        1.29
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        Fast, lightweight YAML loader and dumper
 License:        BSD and MIT
 Group:          Development/Libraries
 URL:            http://search.cpan.org/dist/YAML-Syck/
 Source0:        http://www.cpan.org/authors/id/T/TO/TODDR/YAML-Syck-%{version}.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(id -nu)
+BuildRequires:  coreutils
+BuildRequires:  findutils
+BuildRequires:  gcc
+BuildRequires:  make
 BuildRequires:  perl
+BuildRequires:  perl-devel
 # Keep bundled inc::Module::Install to break cycle
 # perl-Module-Install → perl-YAML-Tiny → perl-YAML-Syck
 BuildRequires:  perl(Cwd)
@@ -46,21 +51,21 @@ structures to YAML strings, and the other way around.
 rm -rf inc/parent.pm inc/PerlIO.pm inc/Scalar/Util.pm
 
 %build
-perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="$RPM_OPT_FLAGS"
+perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="%{optflags}"
 make %{?_smp_mflags}
 
 %install
-rm -rf $RPM_BUILD_ROOT
-make pure_install DESTDIR=$RPM_BUILD_ROOT
-find $RPM_BUILD_ROOT -type f -name .packlist -exec rm -f {} \;
-find $RPM_BUILD_ROOT -type f -name '*.bs' -size 0 -exec rm -f {} \;
-%{_fixperms} $RPM_BUILD_ROOT
+rm -rf %{buildroot}
+make pure_install DESTDIR=%{buildroot}
+find %{buildroot} -type f -name .packlist -delete
+find %{buildroot} -type f -name '*.bs' -empty -delete
+%{_fixperms} %{buildroot}
 
 %check
 make test
 
 %clean
-rm -rf $RPM_BUILD_ROOT
+rm -rf %{buildroot}
 
 %files
 %license COPYING
@@ -72,6 +77,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man3/YAML::Syck.3*
 
 %changelog
+* Wed Apr 20 2016 Paul Howarth <paul@city-fan.org> - 1.29-5
+- Fix FTBFS due to missing buildreq perl-devel
+- Simplify find commands using -empty and -delete
+
 * Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.29-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild