Allow building against perl <= 5.25.5

Data-Dumper-2.167-Provide-SvPVCLEAR-macro.patch

@@ -0,0 +1,34 @@
+From c38b7faa8bb565553bf125da7244f013822735ff Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Thu, 11 May 2017 13:44:14 +0200
+Subject: [PATCH] Provide SvPVCLEAR() macro
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+To build with perl <= 5.25.5.
+
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ Dumper.xs | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/Dumper.xs b/Dumper.xs
+index 0e7142e..5a21721 100644
+--- a/Dumper.xs
++++ b/Dumper.xs
+@@ -8,6 +8,11 @@
+ #  include "ppport.h"
+ #endif
+ 
++/* SvPVCLEAR was added after 5.25.5 and ppport.h does not provide it */
++#if !defined SvPVCLEAR
++#define SvPVCLEAR(x) sv_setpvs((x), "")
++#endif
++
+ #if PERL_VERSION < 8
+ #  define DD_USE_OLD_ID_FORMAT
+ #endif
+-- 
+2.9.3
+

perl-Data-Dumper.spec

@@ -8,14 +8,15 @@ URL:            http://search.cpan.org/dist/Data-Dumper/
 Source0:        http://www.cpan.org/authors/id/S/SM/SMUELLER/Data-Dumper-%{cpan_version}.tar.gz
 # Unbundled from perl-5.25.12, requires perl > 5.25.5
 Patch0:         Data-Dumper-2.161-Upgrade-to-2.167.patch
+# Allow building against perl <= 5.25.5,
+# required for Data-Dumper-2.161-Upgrade-to-2.167.patch
+Patch1:         Data-Dumper-2.167-Provide-SvPVCLEAR-macro.patch
 BuildRequires:  findutils
 BuildRequires:  gcc
 BuildRequires:  make
 BuildRequires:  perl
 BuildRequires:  perl-devel
 BuildRequires:  perl-generators
-# The XS implementation calls SvPVCLEAR() added into perl after 5.25.5
-BuildRequires:  perl(:VERSION) > 5.25.5
 BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.76
 BuildRequires:  sed
 # perl-Test-Simple is in cycle with perl-Data-Dumper
@@ -57,6 +58,7 @@ structures correctly.
 %prep
 %setup -q -n Data-Dumper-%{cpan_version}
 %patch0 -p1
+%patch1 -p1
 sed -i '/MAN3PODS/d' Makefile.PL
 
 %build