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-rw-r--r--include/qpdf/Pipeline.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/qpdf/Pipeline.hh b/include/qpdf/Pipeline.hh
index 3b06b406..2a2f9d3c 100644
--- a/include/qpdf/Pipeline.hh
+++ b/include/qpdf/Pipeline.hh
@@ -50,6 +50,8 @@
#include <memory>
#include <string>
+// Remember to use QPDF_DLL_CLASS on anything derived from Pipeline so
+// it will work with dynamic_cast across the shared object boundary.
class QPDF_DLL_CLASS Pipeline
{
public: