When i am trying to compile prelude-correlator beta 3
i am getting these messages:

prelude-correlator.c:48: error: syntax error before "got_signal" 
prelude-correlator.c:48: warning: type defaults to @int' in declaration of @got_signal'
prelude-correlator.c:48: warning: data definition has no type or storage class
prelude-correlator.c: In function @handle_signal_if_needed':
prelude-correlator.c:299: error: @SIGHUP' undeclared (first use in this function)
prelude-correlator.c:299: error: (Each undeclared identifier is reported only once
prelude-correlator.c:299: error: for each function it appears in.)
prelude-correlator.c:304: error: @SIGUSR1' undeclared (first use in this function)
prelude-correlator.c:313: error: @SIGTERM' undeclared (first use in this function)
prelude-correlator.c:313: error: @SIGINT' undeclared (first use in this function)
prelude-correlator.c:313: error: @SIGABRT' undeclared (first use in this function)
prelude-correlator.c: In function @setup_signal':
prelude-correlator.c:382: error: storage size of @action' isn't known
prelude-correlator.c:388: warning: implicit declaration of function @sigemptyset'
prelude-correlator.c:395: warning: implicit declaration of function @sigaction'
prelude-correlator.c:395: error: @SIGTERM' undeclared (first use in this function)
prelude-correlator.c:396: error: @SIGINT' undeclared (first use in this function)
prelude-correlator.c:397: error: @SIGABRT' undeclared (first use in this function)
prelude-correlator.c:398: error: @SIGUSR1' undeclared (first use in this function)
prelude-correlator.c:399: error: @SIGHUP' undeclared (first use in this function)
prelude-correlator.c:382: warning: unused variable @action'
prelude-correlator.c: In function @correlation_plugin_register_signal':
prelude-correlator.c:439: error: storage size of @action' isn't known
prelude-correlator.c:439: warning: unused variable @action'
*** Error code 1

Stop in /root/prelude-correlator-0.9.0-beta3/src (line 92 of /usr/share/mk/sys.mk).
*** Error code 1

Stop in /root/prelude-correlator-0.9.0-beta3/src (line 439 of Makefile).
*** Error code 1

Stop in /root/prelude-correlator-0.9.0-beta3 (line 391 of Makefile).
*** Error code 1

Stop in /root/prelude-correlator-0.9.0-beta3 (line 296 of Makefile).