add all perl build requirements for the test suite, in a portable way

curl.spec

@@ -1,7 +1,7 @@
 Summary: A utility for getting files from remote servers (FTP, HTTP, and others)
 Name: curl
 Version: 7.35.0
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: MIT
 Group: Applications/Internet
 Source: http://curl.haxx.se/download/%{name}-%{version}.tar.lzma
@@ -48,10 +48,20 @@ BuildRequires: pkgconfig
 BuildRequires: stunnel
 BuildRequires: zlib-devel
 
-# perl-Digest-MD5 (formerly part of perl) is required by the test-suite
-%if 19 < 0%{?fedora} || 6 < 0%{?rhel}
-BuildRequires: perl-Digest-MD5
-%endif
+# perl modules used in the test suite
+BuildRequires: perl(Cwd)
+BuildRequires: perl(Digest::MD5)
+BuildRequires: perl(Exporter)
+BuildRequires: perl(File::Basename)
+BuildRequires: perl(File::Copy)
+BuildRequires: perl(File::Spec)
+BuildRequires: perl(IPC::Open2)
+BuildRequires: perl(MIME::Base64)
+BuildRequires: perl(strict)
+BuildRequires: perl(Time::Local)
+BuildRequires: perl(Time::HiRes)
+BuildRequires: perl(warnings)
+BuildRequires: perl(vars)
 
 # require valgrind to boost test coverage on i386 and x86_64
 %ifarch %{ix86} x86_64
@@ -234,6 +244,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/aclocal/libcurl.m4
 
 %changelog
+* Mon Mar 17 2014 Paul Howarth <paul@city-fan.org> 7.35.0-5
+- add all perl build requirements for the test suite, in a portable way
+
 * Mon Mar 17 2014 Kamil Dudka <kdudka@redhat.com> 7.35.0-4
 - add BR for perl-Digest-MD5, which is required by the test-suite