atmark@atde9:~/usr/src/apl$ unzip periodic-timer-sample.zip 
Archive:  periodic-timer-sample.zip
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atmark@atde9:~/usr/src/apl$ cd periodic-timer-sample
atmark@atde9:~/usr/src/apl/periodic-timer-sample$ mkdir build
atmark@atde9:~/usr/src/apl/periodic-timer-sample$ cd build
atmark@atde9:~/usr/src/apl/periodic-timer-sample/build$ cmake ..
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/atmark/usr/src/apl/periodic-timer-sample/build
atmark@atde9:~/usr/src/apl/periodic-timer-sample/build$ make
Scanning dependencies of target main
[ 50%] Building CXX object bench/CMakeFiles/main.dir/main.cpp.o
[100%] Linking CXX executable main
/usr/bin/ld: CMakeFiles/main.dir/main.cpp.o: in function `POSIXTimer<Callback>::stop()':
main.cpp:(.text._ZN10POSIXTimerI8CallbackE4stopEv[_ZN10POSIXTimerI8CallbackE4stopEv]+0x25): undefined reference to `timer_delete'
/usr/bin/ld: CMakeFiles/main.dir/main.cpp.o: in function `POSIXTimer<Callback>::start(Callback*, unsigned int)':
main.cpp:(.text._ZN10POSIXTimerI8CallbackE5startEPS0_j[_ZN10POSIXTimerI8CallbackE5startEPS0_j]+0x7e): undefined reference to `timer_create'
/usr/bin/ld: main.cpp:(.text._ZN10POSIXTimerI8CallbackE5startEPS0_j[_ZN10POSIXTimerI8CallbackE5startEPS0_j]+0x9c): undefined reference to `timer_settime'
collect2: error: ld returned 1 exit status
make[2]: *** [bench/CMakeFiles/main.dir/build.make:103: bench/main] エラー 1
make[1]: *** [CMakeFiles/Makefile2:113: bench/CMakeFiles/main.dir/all] エラー 2
make: *** [Makefile:103: all] エラー 2