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-rw-r--r--gr-blocks/swig/CMakeLists.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/gr-blocks/swig/CMakeLists.txt b/gr-blocks/swig/CMakeLists.txt
index 6d5edb7c2a..388a4af4fb 100644
--- a/gr-blocks/swig/CMakeLists.txt
+++ b/gr-blocks/swig/CMakeLists.txt
@@ -50,6 +50,9 @@ set(GR_SWIG_BLOCK_IFILES
set(GR_SWIG_INCLUDE_DIRS $<TARGET_PROPERTY:runtime_swig,INCLUDE_DIRECTORIES>)
set(GR_SWIG_TARGET_DEPS runtime_swig)
+if(ENABLE_GR_CTRLPORT)
+ set(GR_SWIG_FLAGS "-DGR_CTRLPORT")
+endif()
foreach(swigfile ${GR_SWIG_BLOCK_IFILES})
set(GR_SWIG_DOC_FILE ${CMAKE_CURRENT_BINARY_DIR}/${swigfile}_doc.i)