add BR gcc

perl-Filesys-Df.spec

@@ -5,6 +5,7 @@ Summary:        Perl extension for filesystem disk space information
 License:        GPL+ or Artistic
 URL:            http://search.cpan.org/dist/Filesys-Df/
 Source0:        http://www.cpan.org/modules/by-module/Filesys/Filesys-Df-%{version}.tar.gz
+BuildRequires:  gcc
 BuildRequires:  perl-devel
 BuildRequires:  perl-generators
 BuildRequires:  perl(ExtUtils::MakeMaker)