--- rpm-0.0.5/usr/share/gems/gems/rpm-0.0.5/lib/rpm/c/rpmmacro.rb	2017-09-09 22:19:09.660000000 +0100
+++ rpm-0.0.5/lib/rpm/c/rpmmacro.rb	2017-09-09 22:21:21.150000000 +0100
@@ -17,10 +17,10 @@
     RMIL_GLOBAL = 0
 
     # ...
-    attach_function 'addMacro', [:pointer, :string, :string, :string, :int], :void
-    attach_function 'delMacro', [:pointer, :string], :void
+    attach_function 'rpmPushMacro', [:pointer, :string, :string, :string, :int], :void
+    attach_function 'rpmPopMacro', [:pointer, :string], :void
     # ...
-    attach_function 'expandMacros', [:pointer, :pointer, :pointer, :size_t], :int
+    attach_function 'rpmExpandMacros', [:pointer, :pointer, :pointer, :size_t], :int
     # ...
     attach_function 'rpmInitMacros', [:pointer, :string], :void
     # ...
--- rpm-0.0.5/lib/rpm/c/header.rb	2017-09-09 22:23:46.630000000 +0100
+++ rpm-0.0.5/lib/rpm/c/header.rb	2017-09-09 22:28:31.960000000 +0100
@@ -22,8 +22,6 @@
     # ...
     attach_function 'headerFormat', [:header, :string, :pointer], :pointer
     # ...
-    attach_function 'headerNVR', [:header, :pointer, :pointer, :pointer], :int
-    # ...
     attach_function 'headerGetAsString', [:header, :rpmTagVal], :string
     # ...
     attach_function 'headerPutString', [:header, :rpmTagVal, :string], :int
@@ -34,4 +32,4 @@
 
   end
 
-end
\ No newline at end of file
+end
--- rpm-0.0.5/lib/rpm/package.rb	2017-09-09 22:23:46.640000000 +0100
+++ rpm-0.0.5/lib/rpm/package.rb	2017-09-09 22:34:26.210000000 +0100
@@ -270,15 +270,8 @@
 
     # @return [Version] Version for this package
     def version
-      v_ptr = ::FFI::MemoryPointer.new(:pointer, 1)
-      r_ptr = ::FFI::MemoryPointer.new(:pointer, 1)
 
-      RPM::C.headerNVR(ptr, nil, v_ptr, r_ptr)
-      v = v_ptr.read_pointer.read_string
-      r = r_ptr.read_pointer.read_string
-      v_ptr.free
-      r_ptr.free
-      Version.new(v, r, self[:epoch])
+      Version.new(self[:version], self[:release], self[:epoch])
     end
 
     # String representation of the package: "name-version-release-arch"