I’m not sure this is where I should be asking this question but here goes.
To anyone that is wondering I just upgraded to Bookworm on my Pi and installed GNURadio 3.10.5.1. ( This was the subject of much discussion recently) I am attempting to install an OOT module from my existing project because it does not show in the flowgraph. I assume that I need to perform ‘sudo make install’ to load it into the new GNURadio. Perhaps this is not a correct assumption. However, when I perform the command I get an error which is spelled out in the error log below. What do I need to do here? Jim Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output: Change Dir: /home/pi/gr-freq/build/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/gmake cmTC_15004/fast && /usr/bin/gmake -f CMakeFiles/cmTC_15004.dir/build.make CMakeFiles/cmTC_15004.dir/build gmake[1]: Entering directory '/home/pi/gr-freq/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_15004.dir/src.c.o /usr/bin/cc -DCMAKE_HAVE_LIBC_PTHREAD -std=gnu11 -o CMakeFiles/cmTC_15004.dir/src.c.o -c /home/pi/gr-freq/build/CMakeFiles/CMakeTmp/src.c Linking C executable cmTC_15004 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_15004.dir/link.txt --verbose=1 /usr/bin/cc -DCMAKE_HAVE_LIBC_PTHREAD CMakeFiles/cmTC_15004.dir/src.c.o -o cmTC_15004 /usr/bin/ld: CMakeFiles/cmTC_15004.dir/src.c.o: in function `main': src.c:(.text+0x40): undefined reference to `pthread_create' /usr/bin/ld: src.c:(.text+0x4c): undefined reference to `pthread_detach' /usr/bin/ld: src.c:(.text+0x58): undefined reference to `pthread_cancel' /usr/bin/ld: src.c:(.text+0x68): undefined reference to `pthread_join' collect2: error: ld returned 1 exit status gmake[1]: *** [CMakeFiles/cmTC_15004.dir/build.make:106: cmTC_15004] Error 1 gmake[1]: Leaving directory '/home/pi/gr-freq/build/CMakeFiles/CMakeTmp' gmake: *** [Makefile:140: cmTC_15004/fast] Error 2 Source file was: #include <pthread.h> void* test_func(void* data) { return data; } int main(void) { pthread_t thread; pthread_create(&thread, NULL, test_func, NULL); pthread_detach(thread); pthread_cancel(thread); pthread_join(thread, NULL); pthread_atfork(NULL, NULL, NULL); pthread_exit(NULL); return 0; } Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /home/pi/gr-freq/build/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/gmake cmTC_75010/fast && /usr/bin/gmake -f CMakeFiles/cmTC_75010.dir/build.make CMakeFiles/cmTC_75010.dir/build gmake[1]: Entering directory '/home/pi/gr-freq/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_75010.dir/CheckFunctionExists.c.o /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -std=gnu11 -o CMakeFiles/cmTC_75010.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.18/Modules/CheckFunctionExists.c Linking C executable cmTC_75010 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_75010.dir/link.txt --verbose=1 /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create CMakeFiles/cmTC_75010.dir/CheckFunctionExists.c.o -o cmTC_75010 -lpthreads /usr/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status gmake[1]: *** [CMakeFiles/cmTC_75010.dir/build.make:106: cmTC_75010] Error 1 gmake[1]: Leaving directory '/home/pi/gr-freq/build/CMakeFiles/CMakeTmp' gmake: *** [Makefile:140: cmTC_75010/fast] Error 2 -- This email has been checked for viruses by AVG antivirus software. www.avg.com