[perl-ExtUtils-PkgConfig] Allow empty cflags

[Petr Pisar]

commit 0d8b384542a8e54608cb143aae50bffa2818f2ba
Author: Petr Písař <ppisar at redhat.com>
Date:   Mon Jul 22 09:41:20 2013 +0200

    Allow empty cflags

 ...Config-1.12-Empty-cflags-are-valid-cflags.patch |   44 ++++++++++++++++++++
 perl-ExtUtils-PkgConfig.spec                       |    8 +++-
 2 files changed, 51 insertions(+), 1 deletions(-)
---
diff --git a/ExtUtils-PkgConfig-1.12-Empty-cflags-are-valid-cflags.patch b/ExtUtils-PkgConfig-1.12-Empty-cflags-are-valid-cflags.patch
new file mode 100644
index 0000000..91f5331
--- /dev/null
+++ b/ExtUtils-PkgConfig-1.12-Empty-cflags-are-valid-cflags.patch
@@ -0,0 +1,44 @@
+From be149af1735ba52aefd85d6d318b11e45c3244b5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar at redhat.com>
+Date: Mon, 22 Jul 2013 09:32:29 +0200
+Subject: [PATCH] Empty cflags are valid cflags
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+ExtUtils::PkgConfig-find() croaked on emptry cflags:
+
+$ pkg-config --cflags 'libffi >= 3.0.0'| hexdump -C
+00000000  0a                                                |.|
+00000001
+$ perl -MData::Dumper -MExtUtils::PkgConfig -e 'print
+Dumper(ExtUtils::PkgConfig->find(q{libffi}))'
+*** can't find cflags for "libffi"
+*** is it properly installed and available in PKG_CONFIG_PATH?
+ at -e line 1.
+
+That's wrong. Empty string cflags are valid cflafs too.
+
+<https://rt.cpan.org/Public/Bug/Display.html?id=84026>
+
+Signed-off-by: Petr Písař <ppisar at redhat.com>
+---
+ lib/ExtUtils/PkgConfig.pm | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/ExtUtils/PkgConfig.pm b/lib/ExtUtils/PkgConfig.pm
+index 075d8dc..0f68256 100644
+--- a/lib/ExtUtils/PkgConfig.pm
++++ b/lib/ExtUtils/PkgConfig.pm
+@@ -129,7 +129,7 @@ sub find {
+                 $data{$what} =~ s/[\015\012]+$//;
+ 		croak "*** can't find $what for \"$data{pkg}\"\n"
+ 		    . "*** is it properly installed and available in PKG_CONFIG_PATH?\n"
+-			unless $data{$what};
++			unless defined $data{$what};
+ 	}
+ 	return %data;
+ }
+-- 
+1.8.1.4
+
diff --git a/perl-ExtUtils-PkgConfig.spec b/perl-ExtUtils-PkgConfig.spec
index 9dc56e3..d6b2474 100644
--- a/perl-ExtUtils-PkgConfig.spec
+++ b/perl-ExtUtils-PkgConfig.spec
@@ -1,12 +1,14 @@
 Name:           perl-ExtUtils-PkgConfig
 Version:        1.12
-Release:        15%{?dist}
+Release:        16%{?dist}
 Summary:        Simplistic interface to pkg-config
 
 Group:          Development/Libraries
 License:        LGPLv2+
 URL:            http://search.cpan.org/dist/ExtUtils-PkgConfig/
 Source0:        http://search.cpan.org/CPAN/authors/id/T/TS/TSCH/ExtUtils-PkgConfig-%{version}.tar.gz
+# Allow empty cflags, CPAN RT#84026
+Patch0:         ExtUtils-PkgConfig-1.12-Empty-cflags-are-valid-cflags.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildArch:      noarch
@@ -28,6 +30,7 @@ that you would've written yourself.
 
 %prep
 %setup -q -n ExtUtils-PkgConfig-%{version}
+%patch0 -p1
 
 
 %build
@@ -59,6 +62,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Jul 22 2013 Petr Pisar <ppisar at redhat.com> - 1.12-16
+- Allow empty cflags (CPAN RT#84026)
+
 * Wed Jul 17 2013 Petr Pisar <ppisar at redhat.com> - 1.12-15
 - Perl 5.18 rebuild