[Csnd-dev] Another build failure

As ever it could be me but I do not think I was looking at this code

[ 73%] Linking C executable ../csound
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: CMakeFiles/csound-bin.dir/csound/sched.c.o: undefined reference to symbol 'pthread_detach@@GLIBC_2.2.5'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /lib64/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[2]: *** [Frontends/CMakeFiles/csound-bin.dir/build.make:115: csound] Error 1
make[1]: *** [CMakeFiles/Makefile2:1230: Frontends/CMakeFiles/csound-bin.dir/all] Error 2
make: *** [Makefile:166: all] Error 2

==John ffitch