diff --git a/gr3.8.patch b/gr3.8.patch
new file mode 100644
index 0000000..eb416b0
--- /dev/null
+++ b/gr3.8.patch
@@ -0,0 +1,129 @@
+diff --git a/cmake/Modules/GrSwig.cmake b/cmake/Modules/GrSwig.cmake
+index 569667b..f175cc5 100644
+--- a/cmake/Modules/GrSwig.cmake
++++ b/cmake/Modules/GrSwig.cmake
+@@ -114,7 +114,7 @@ macro(GR_SWIG_MAKE name)
+     endif()
+ 
+     #append additional include directories
+-    find_package(PythonLibs 2)
++    find_package(PythonLibs 3)
+     list(APPEND GR_SWIG_INCLUDE_DIRS ${PYTHON_INCLUDE_PATH}) #deprecated name (now dirs)
+     list(APPEND GR_SWIG_INCLUDE_DIRS ${PYTHON_INCLUDE_DIRS})
+     list(APPEND GR_SWIG_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR})
+diff --git a/op25/gr-op25/CMakeLists.txt b/op25/gr-op25/CMakeLists.txt
+index 938bd67..110b99c 100644
+--- a/op25/gr-op25/CMakeLists.txt
++++ b/op25/gr-op25/CMakeLists.txt
+@@ -93,11 +93,12 @@ find_package(CppUnit)
+ # set(GR_REQUIRED_COMPONENTS RUNTIME BLOCKS FILTER ...)
+ # find_package(Gnuradio "version")
+ set(GR_REQUIRED_COMPONENTS RUNTIME BLOCKS FILTER PMT)
+-find_package(Gnuradio)
+-
+-if(NOT GNURADIO_RUNTIME_FOUND)
+-    message(FATAL_ERROR "GnuRadio Runtime required to compile op25")
++SET(MIN_GR_VERSION "3.8.0")
++find_package(Gnuradio REQUIRED)
++if("${Gnuradio_VERSION}" VERSION_LESS MIN_GR_VERSION)
++    MESSAGE(FATAL_ERROR "GnuRadio version required: >=\"" ${MIN_GR_VERSION} "\" found: \"" ${Gnuradio_VERSION} "\"")
+ endif()
++
+ if(NOT CPPUNIT_FOUND)
+     message(FATAL_ERROR "CppUnit required to compile op25")
+ endif()
+diff --git a/op25/gr-op25/lib/CMakeLists.txt b/op25/gr-op25/lib/CMakeLists.txt
+index 1befdd9..609fa84 100644
+--- a/op25/gr-op25/lib/CMakeLists.txt
++++ b/op25/gr-op25/lib/CMakeLists.txt
+@@ -63,7 +63,7 @@ list(APPEND op25_sources
+ )
+ 
+ add_library(gnuradio-op25 SHARED ${op25_sources})
+-target_link_libraries(gnuradio-op25 ${Boost_LIBRARIES} ${GNURADIO_RUNTIME_LIBRARIES} itpp pcap)
++target_link_libraries(gnuradio-op25 ${Boost_LIBRARIES} gnuradio::gnuradio-runtime itpp pcap)
+ set_target_properties(gnuradio-op25 PROPERTIES DEFINE_SYMBOL "gnuradio_op25_EXPORTS")
+ 
+ ########################################################################
+diff --git a/op25/gr-op25/swig/CMakeLists.txt b/op25/gr-op25/swig/CMakeLists.txt
+index e99226f..2530c45 100644
+--- a/op25/gr-op25/swig/CMakeLists.txt
++++ b/op25/gr-op25/swig/CMakeLists.txt
+@@ -21,7 +21,7 @@
+ # Include swig generation macros
+ ########################################################################
+ find_package(SWIG)
+-find_package(PythonLibs 2)
++find_package(PythonLibs 3)
+ if(NOT SWIG_FOUND OR NOT PYTHONLIBS_FOUND)
+     return()
+ endif()
+@@ -31,9 +31,7 @@ include(GrPython)
+ ########################################################################
+ # Setup swig generation
+ ########################################################################
+-foreach(incdir ${GNURADIO_RUNTIME_INCLUDE_DIRS})
+-    list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/gnuradio/swig)
+-endforeach(incdir)
++set(GR_SWIG_INCLUDE_DIRS $<TARGET_PROPERTY:gnuradio::runtime_swig,INTERFACE_INCLUDE_DIRECTORIES>)
+ 
+ set(GR_SWIG_LIBRARIES gnuradio-op25)
+ set(GR_SWIG_DOC_FILE ${CMAKE_CURRENT_BINARY_DIR}/op25_swig_doc.i)
+diff --git a/op25/gr-op25_repeater/CMakeLists.txt b/op25/gr-op25_repeater/CMakeLists.txt
+index 9962ba3..317c8c3 100644
+--- a/op25/gr-op25_repeater/CMakeLists.txt
++++ b/op25/gr-op25_repeater/CMakeLists.txt
+@@ -92,11 +92,12 @@ find_package(CppUnit)
+ #
+ set(GR_REQUIRED_COMPONENTS RUNTIME BLOCKS FILTER PMT)
+ # find_package(Gnuradio "version")
+-find_package(Gnuradio)
+-
+-if(NOT GNURADIO_RUNTIME_FOUND)
+-    message(FATAL_ERROR "GnuRadio Runtime required to compile op25_repeater")
++set(MIN_GR_VERSION "3.8.0")
++find_package(Gnuradio REQUIRED)
++if("${Gnuradio_VERSION}" VERSION_LESS MIN_GR_VERSION)
++    MESSAGE(FATAL_ERROR "GnuRadio version required: >=\"" ${MIN_GR_VERSION} "\" found: \"" ${Gnuradio_VERSION} "\"")
+ endif()
++
+ if(NOT CPPUNIT_FOUND)
+     message(FATAL_ERROR "CppUnit required to compile op25_repeater")
+ endif()
+diff --git a/op25/gr-op25_repeater/lib/CMakeLists.txt b/op25/gr-op25_repeater/lib/CMakeLists.txt
+index 983b5b5..a18da4c 100644
+--- a/op25/gr-op25_repeater/lib/CMakeLists.txt
++++ b/op25/gr-op25_repeater/lib/CMakeLists.txt
+@@ -67,7 +67,7 @@ else(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+     find_library(GR_FILTER_LIBRARY libgnuradio-filter.so )
+ endif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+ set(GR_FILTER_LIBRARIES ${GR_FILTER_LIBRARY})
+-target_link_libraries(gnuradio-op25_repeater ${Boost_LIBRARIES} ${GNURADIO_RUNTIME_LIBRARIES} ${GR_FILTER_LIBRARIES} imbe_vocoder)
++target_link_libraries(gnuradio-op25_repeater ${Boost_LIBRARIES} gnuradio::gnuradio-runtime ${GR_FILTER_LIBRARIES} imbe_vocoder)
+ set_target_properties(gnuradio-op25_repeater PROPERTIES DEFINE_SYMBOL "gnuradio_op25_repeater_EXPORTS")
+ 
+ ########################################################################
+diff --git a/op25/gr-op25_repeater/swig/CMakeLists.txt b/op25/gr-op25_repeater/swig/CMakeLists.txt
+index 1d88bbd..72d7335 100644
+--- a/op25/gr-op25_repeater/swig/CMakeLists.txt
++++ b/op25/gr-op25_repeater/swig/CMakeLists.txt
+@@ -21,7 +21,7 @@
+ # Include swig generation macros
+ ########################################################################
+ find_package(SWIG)
+-find_package(PythonLibs 2)
++find_package(PythonLibs 3)
+ if(NOT SWIG_FOUND OR NOT PYTHONLIBS_FOUND)
+     return()
+ endif()
+@@ -31,9 +31,7 @@ include(GrPython)
+ ########################################################################
+ # Setup swig generation
+ ########################################################################
+-foreach(incdir ${GNURADIO_RUNTIME_INCLUDE_DIRS})
+-    list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/gnuradio/swig)
+-endforeach(incdir)
++set(GR_SWIG_INCLUDE_DIRS $<TARGET_PROPERTY:gnuradio::runtime_swig,INTERFACE_INCLUDE_DIRECTORIES>)
+ 
+ set(GR_SWIG_LIBRARIES gnuradio-op25_repeater)
+ set(GR_SWIG_DOC_FILE ${CMAKE_CURRENT_BINARY_DIR}/op25_repeater_swig_doc.i)