C语言 在Makefile中用-g编译GDB

Question

是使用Makefiles的新手，并且想知道如何包含-g命令(以及我需要的任何其他命令)以便编译我的程序以使用gdb运行。这是我得到的Makefile。提前谢谢。

  include parallelDefs
COMMON = dataGen.h utils.h IO.h parseCommandLine.h graph.h graphIO.h graphUtils.h parallel.h sequence.h blockRadixSort.h deterministicHash.h transpose.h
GENERATORS = rMatGraph gridGraph powerGraph randLocalGraph addWeights randDoubleVector fromAdjIdx adjToEdgeArray adjElimSelfEdges
.PHONY: all clean
all: $(GENERATORS)
$(COMMON) :
    ln -s ../../common/$@ .
%.o : %.C $(COMMON)
    $(PCC) $(PCFLAGS) -c $< -o $@
rMatGraph : rMatGraph.o 
    $(PCC) $(PLFLAGS) -o $@ rMatGraph.o 
gridGraph : gridGraph.o 
    $(PCC) $(PLFLAGS) -o $@ gridGraph.o 
powerGraph : powerGraph.o 
    $(PCC) $(PLFLAGS) -o $@ powerGraph.o 
randLocalGraph : randLocalGraph.o 
    $(PCC) $(PLFLAGS) -o $@ randLocalGraph.o 
addWeights : addWeights.o 
    $(PCC) $(PLFLAGS) -o $@ addWeights.o
fromAdjIdx : fromAdjIdx.o 
    $(PCC) $(PLFLAGS) -o $@ fromAdjIdx.o
randDoubleVector : randDoubleVector.o
    $(PCC) $(PLFLAGS) -o $@ randDoubleVector.o
adjToEdgeArray : adjToEdgeArray.C $(COMMON)
    $(PCC) $(PCFLAGS) $(PLFLAGS) -o $@ adjToEdgeArray.C
adjElimSelfEdges : adjElimSelfEdges.C $(COMMON)
    $(PCC) $(PCFLAGS) $(PLFLAGS) -o $@ adjElimSelfEdges.C
clean :
    rm -f *.o $(GENERATORS)
    make clean -s -C data
cleansrc : 
    make -s clean
    rm -f $(COMMON) 

Answer 1

如果只有randLocalGraph应该使用-g选项编译，那么它将需要一个显式规则:

randLocalGraph.o: randLocalGraph.C $(COMMON)
        $(PCC) $(PCFLAGS) -g -c randLocalGraph.C -o $@

所有其他对象将使用隐式规则创建