[liborcus] update build deps to current Packaging Guidelines

[David Tardon]

commit b1326962f70fc30eda02bab06eda72ea96f8150f
Author: David Tardon <dtardon at redhat.com>
Date:   Thu Mar 27 17:02:30 2014 +0100

    update build deps to current Packaging Guidelines

 liborcus.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/liborcus.spec b/liborcus.spec
index 89b6c71..a22db7a 100644
--- a/liborcus.spec
+++ b/liborcus.spec
@@ -11,7 +11,7 @@ URL: http://gitorious.org/orcus
 Source: http://kohei.us/files/orcus/src/%{name}-%{version}.tar.bz2
 
 BuildRequires: boost-devel
-BuildRequires: zlib-devel
+BuildRequires: pkgconfig(zlib)
 
 Patch0: add-aarch64.patch