# If your compiler cannot find boost, please specify it explicitly like this:
#boost_include_dir = -I/usr/local/include/
#boost_lib_dir = -L/usr/local/lib/

ifeq (, ${STD})
STD = c++98
endif

cflag = -Wall -fexceptions -std=${STD}
ifeq (${MAKECMDGOALS}, debug)
	cflag += -g -DDEBUG
	dir = debug
else
	cflag += -O2 -DNDEBUG
	lflag = -s
	dir = release
endif
cflag += -DBOOST_ASIO_NO_DEPRECATED -DBOOST_CHRONO_HEADER_ONLY
common_libs = -lboost_system -lboost_thread

target_machine = ${shell ${CXX} -dumpmachine}
ifneq (, ${findstring solaris, ${target_machine}})
	cflag += -pthreads
	lflag += -pthreads -lsocket -lnsl
else
	cflag += -pthread
	lflag += -pthread
	ifneq (, ${findstring freebsd, ${target_machine}})
		common_libs += -lboost_atomic
		#here maybe still have other machines need to be separated out
	endif
endif

cflag += ${ext_cflag} ${boost_include_dir}
lflag += ${boost_lib_dir} ${common_libs} ${ext_libs}

target = ${dir}/${module}
objects = ${patsubst %.cpp,${dir}/%.o,${wildcard *.cpp}}
deps = ${patsubst %.o,%.d,${objects}}
${shell mkdir -p ${dir}}

release debug : ${target}
-include ${deps}
${target} : ${objects}
	${CXX} -o $@ $^ ${lflag}
${objects} : ${dir}/%.o : %.cpp
	${CXX} ${cflag} -E -MMD -w -MT '$@' -MF ${patsubst %.cpp,%.d,${dir}/$<} $< 1>/dev/null
	${CXX} ${cflag} -c $< -o $@

.PHONY : clean
clean:
	-rm -rf debug release