use correctly the variable revision_tag

Daniele Giunchi · Daniele Giunchi · commit dbdd1fbfdad2 · 2012-09-05T08:40:13.000+02:00
diff --git a/CMakeExternals/External_PythonQt.cmake b/CMakeExternals/External_PythonQt.cmake
@@ -104,7 +104,7 @@
     
     ExternalProject_Add(${proj}
       GIT_REPOSITORY "${git_protocol}://github.com/b3c/PythonQt.git"
-      GIT_TAG revision_tag
+      GIT_TAG ${revision_tag}
       CMAKE_GENERATOR ${gen}
       UPDATE_COMMAND ""
       BUILD_COMMAND ""
