@@ -28,7 +28,7 @@

 Source:         %{name}-%{version}.tar.bz2

 BuildRequires:  gcc-c++

 BuildRequires:  gtk-doc

-BuildRequires:  orc

+BuildRequires:  orc-devel >= 0.4.10

 BuildRequires:  pkg-config

 BuildRoot:      %{_tmppath}/%{name}-%{version}-build

@@ -59,7 +59,7 @@

 Group:          Development/Libraries/Other

 Requires:       libschroedinger-1_0-0 = %{version}

 Requires:       glib2-devel

-Requires:       orc

+Requires:       orc >= 0.4.10

 Provides:       libschroedinger-devel = %{version}-%{release}

 %description devel

​