Fix qa/601 absolute paths
Fix qa/601 absolute paths

Don't include absolute path /usr/include/pcp, use $(PCP_INC_DIR)
variable instead.

aeg-aeg/pcpfans,andyvand/cygpcpfans,aeg-aeg/pcpfans,andyvand/cygpcpfans,andyvand/cygpcpfans,tjanez/pcp,ryandoyle/pcp_original,aeg-aeg/pcpfans,adfernandes/pcp,prasincs/pcp,ryandoyle/pcp_original,mbaldessari/pcp,tjanez/pcp,tjanez/pcp,wuliming/pcp,mbaldessari/pcp,tjanez/pcp,prasincs/pcp,mbaldessari/pcp,prasincs/pcp,prasincs/pcp,edwardt/pcp,mbaldessari/pcp,andyvand/cygpcpfans,edwardt/pcp,edwardt/pcp,tjanez/pcp,edwardt/pcp,aeg-aeg/pcpfans,mbaldessari/pcp,adfernandes/pcp,ryandoyle/pcp_original,adfernandes/pcp,wuliming/pcp,edwardt/pcp,tjanez/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,andyvand/cygpcpfans,prasincs/pcp,ryandoyle/pcp_original,prasincs/pcp,ryandoyle/pcp_original,wuliming/pcp,ryandoyle/pcp_original,wuliming/pcp,tjanez/pcp,adfernandes/pcp,prasincs/pcp,aeg-aeg/pcpfans,tjanez/pcp,ryandoyle/pcp_original,edwardt/pcp,mbaldessari/pcp,edwardt/pcp,wuliming/pcp,adfernandes/pcp,andyvand/cygpcpfans,ryandoyle/pcp_original,adfernandes/pcp,aeg-aeg/pcpfans,edwardt/pcp,aeg-aeg/pcpfans,prasincs/pcp,aeg-aeg/pcpfans,andyvand/cygpcpfans,wuliming/pcp,andyvand/cygpcpfans,wuliming/pcp