Workaround a cmake bug that was only visible on a newly installed Philip's machine.
CMake 2.8.4 crashed on this line IF(something AND IS_DIRECTORY(something_else)) when both "something" and "something_else" were empty. Changing the line slightly (using cascading "IF" instead) solved the crash.
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@ -304,10 +304,12 @@ ENDFUNCTION()
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FUNCTION(TRAVERSE_DIRECTORIES dir topdir file prefix)
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FILE(RELATIVE_PATH rel ${topdir} ${dir})
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IF(rel AND IS_DIRECTORY "${f}")
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MAKE_WIX_IDENTIFIER("${rel}" id)
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GET_FILENAME_COMPONENT(name ${dir} NAME)
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FILE(APPEND ${file} "${prefix}<Directory Id='D.${id}' Name='${name}'>\n")
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IF(rel)
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IF (IS_DIRECTORY "${f}")
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MAKE_WIX_IDENTIFIER("${rel}" id)
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GET_FILENAME_COMPONENT(name ${dir} NAME)
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FILE(APPEND ${file} "${prefix}<Directory Id='D.${id}' Name='${name}'>\n")
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ENDIF()
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ENDIF()
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FILE(GLOB all_files ${dir}/*)
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FOREACH(f ${all_files})
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@ -315,8 +317,10 @@ FUNCTION(TRAVERSE_DIRECTORIES dir topdir file prefix)
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TRAVERSE_DIRECTORIES(${f} ${topdir} ${file} "${prefix} ")
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ENDIF()
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ENDFOREACH()
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IF(rel AND IS_DIRECTORY "${f}")
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FILE(APPEND ${file} "${prefix}</Directory>\n")
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IF(rel)
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IF(IS_DIRECTORY "${f}")
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FILE(APPEND ${file} "${prefix}</Directory>\n")
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ENDIF()
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ENDIF()
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ENDFUNCTION()
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