Index: gnuradio-3.7.12.0/gr-uhd/gnuradio-uhd.pc.in
===================================================================
--- gnuradio-3.7.12.0.orig/gr-uhd/gnuradio-uhd.pc.in
+++ gnuradio-3.7.12.0/gr-uhd/gnuradio-uhd.pc.in
@@ -7,5 +7,5 @@ Name: gnuradio-uhd
 Description: GNU Radio blocks for UHD
 Requires: gnuradio-runtime
 Version: @LIBVER@
-Libs: -L${libdir} -lgnuradio-uhd
+Libs: -L${libdir} -lgnuradio-uhd -lpthread
 Cflags: -I${includedir}
Index: gnuradio-3.7.12.0/gr-uhd/examples/c++/CMakeLists.txt
===================================================================
--- gnuradio-3.7.12.0.orig/gr-uhd/examples/c++/CMakeLists.txt
+++ gnuradio-3.7.12.0/gr-uhd/examples/c++/CMakeLists.txt
@@ -31,6 +31,9 @@ include_directories(
 link_directories(${UHD_LIBRARY_DIRS})
 link_directories(${Boost_LIBRARY_DIRS})
 
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+
 ########################################################################
 # Build executable
 ########################################################################
Index: gnuradio-3.7.12.0/volk/lib/CMakeLists.txt
===================================================================
--- gnuradio-3.7.12.0.orig/volk/lib/CMakeLists.txt
+++ gnuradio-3.7.12.0/volk/lib/CMakeLists.txt
@@ -532,7 +532,7 @@ if(CMAKE_VERSION VERSION_GREATER "2.8.11
 
     #Add dynamic library
     add_library(volk SHARED $<TARGET_OBJECTS:volk_obj>)
-    target_link_libraries(volk ${volk_libraries})
+    target_link_libraries(volk ${volk_libraries} "m")
     target_include_directories(volk
         PUBLIC ${PROJECT_BINARY_DIR}/include
         PUBLIC ${PROJECT_SOURCE_DIR}/include
@@ -574,7 +574,7 @@ if(CMAKE_VERSION VERSION_GREATER "2.8.11
 else()
     #create the volk runtime library
     add_library(volk SHARED ${volk_sources})
-    target_link_libraries(volk ${volk_libraries})
+    target_link_libraries(volk ${volk_libraries} "m")
     include_directories(volk
         PUBLIC ${PROJECT_BINARY_DIR}/include
         PUBLIC ${PROJECT_SOURCE_DIR}/include
Index: gnuradio-3.7.12.0/gnuradio-runtime/lib/pmt/CMakeLists.txt
===================================================================
--- gnuradio-3.7.12.0.orig/gnuradio-runtime/lib/pmt/CMakeLists.txt
+++ gnuradio-3.7.12.0/gnuradio-runtime/lib/pmt/CMakeLists.txt
@@ -81,9 +81,13 @@ set(pmt_sources
   ${CMAKE_CURRENT_SOURCE_DIR}/pmt_serialize.cc
 )
 
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+
 list(APPEND gnuradio_pmt_libs
     ${Boost_LIBRARIES}
     ${LOG4CPP_LIBRARIES}
+    Threads::Threads
 )
 
 add_custom_target(pmt_generated