gmake --no-print-directory all-recursive
Making all in .
  CCLD     test-unit-file
./.libs/libsystemd-core.a(libsystemd_core_la-manager.o): In function `manager_check_finished':
manager.c:(.text.manager_check_finished+0x1e0): undefined reference to `sd_notifyf'
collect2: ld returned 1 exit status
gmake[2]: *** [test-unit-file] Error 1
gmake[1]: *** [all-recursive] Error 1
gmake: *** [all] Error 2