OUTPUT = OUTPUT
GVERSION = -14

CXX = u++				# uC++ compiler
#CXX = /u/cs343/cfa-cc/bin/cfa		# CFA compiler
CXXFLAGS = -g -Wall -Wextra -MMD -Wno-implicit-fallthrough -D${OUTPUT} # compiler flags
MAKEFILE_NAME = ${firstword ${MAKEFILE_LIST}} # makefile name

ifeq ($(notdir $(strip ${CXX})),cfa)
.SUFFIXES :				# remove other default suffix rules
.SUFFIXES : .cfa .o			# add CFA default rules
.cfa.o :
	${CXX} ${CXXFLAGS} -c $<
endif

OBJECTS01 = q1exception.o		# optional build of given program
EXEC01 = exception			# given executable name

OBJECTS1 = q1returnglobal.o		# 1st executable object files
EXEC1 = returnglobal			# 1st executable name

OBJECTS2 = q1returntype.o		# 2nd executable object files
EXEC2 = returntype			# 2nd executable name

OBJECTS3 = q1returntypec.o		# 3rd executable object files
EXEC3 = returntypec			# 3rd executable name

OBJECTS02 = q2throwcatch.o		# optional build of given program
EXEC02 = throwcatch			# given executable name

OBJECTS4 = q2longjmp.o			# 4th executable object files
EXEC4 = longjmp				# 4th executable name

OBJECTS5 = # object files forming 5th executable with prefix "q3"
EXEC5 = floatliteral			# 5th executable name

OBJECTS = ${OBJECTS1} ${OBJECTS2} ${OBJECTS3} ${OBJECTS4} ${OBJECTS5}
DEPENDS = ${OBJECTS:.o=.d}
EXECS = ${EXEC1} ${EXEC2} ${EXEC3} ${EXEC4} ${EXEC5}

#############################################################

.PHONY : all clean

all : ${EXECS}				# build all executables

${EXEC01} : ${OBJECTS01}		# optional build of given program
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

q1%.o : q1%.cc				# change compiler 1st executable, ADJUST SUFFIX FOR .C/.cpp
	g++${GVERSION} ${CXXFLAGS} -std=c++17 -c $< -o $@

${EXEC1} : ${OBJECTS1}			# compile and link 1st executable
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

${EXEC2} : ${OBJECTS2}			# compile and link 2nd executable
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

q1%.o : q1%.c				# change compiler 2nd executable
	gcc${GVERSION} ${CXXFLAGS} -c $< -o $@

${EXEC02} : ${OBJECTS02}		# optional build of given program
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

${EXEC3} : ${OBJECTS3}			# compile and link 3rd executable
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

q2%.o : q2%.cc				# change compiler 4th executable, ADJUST SUFFIX FOR .C/.cpp
	g++${GVERSION} ${CXXFLAGS} -c $< -o $@

${EXEC4} : ${OBJECTS4}			# compile and link 4th executable
	g++${GVERSION} ${CXXFLAGS} $^ -o $@

${EXEC5} : ${OBJECTS5}			# compile and link 5th executable
	${CXX} ${CXXFLAGS} $^ -o $@

#############################################################

${OBJECTS} : ${MAKEFILE_NAME}		# OPTIONAL : changes to this file => recompile

-include ${DEPENDS}			# include *.d files containing program dependences

clean :					# remove files that can be regenerated
	rm -f *.d *.o ${EXEC01} ${EXEC02} ${EXECS}