有与 makefile 相关的噩梦

Question

如果我尝试 make all，我得到：

make: ***No rule to make target 'src\SOURCES', needed by 'all'. Stop.

如果我尝试 make qwark，我得到：

make: ***No rule to make target 'obj\src\SOURCES' needed by 'qwark'. Stop.

如果我尝试 make qwark.o，我得到

Fatal error: can't create obj\qwark.o: No such file or directory
make: *** [qwark.o] Error 1

Here's我的源代码，供您观看......

COMPILER := g++
CFLAGS := 
LDFLAGS := 
SOURCES := quark.cc
SOURCES := $(addprefix src\,SOURCES)
OBJECTS := $(addprefix obj\,$($(notdir SOURCES):.cc=.o))
EXECUTABLE := qwark.exe
DEBUG := bin\debug\$(EXECUTABLE)
NORMAL := bin\release\$(EXECUTABLE)

all: $(SOURCES) $(EXECUTABLE)

release: qwark
normal: qwark

qwark: $(OBJECTS)
    $(CC) $(LDFLAGS) $(OBJECTS) -o $@

qwark.o: src\qwark.cc
    $(CC) $(CFLAGS) -c src\qwark.cc -o obj\qwark.o

%.o: src\%.cc
    $(CC) $(CFLAGS) -c $(input) -o obj\$(output)

请有人告诉我我做错了什么..............

Answer 1

您正在修改文字 SOURCES 单词，而不是相应的变量值。尝试以下操作：

SOURCES := quark.cc

SOURCES := $(addprefix src\,$(SOURCES))
OBJECTS := $(addprefix obj\,$(patsubst %.cc,%.o,$(notdir $(SOURCES))))

或者更简单：

SOURCES := quark.cc

OBJECTS := $(SOURCES:%.cc=obj\%.o)
SOURCES := $(SOURCES:%=src\%)

Answer 2

当 SOURCES 变量位于右侧时展开它吗？

SOURCES := $(addprefix src\,$(SOURCES))
OBJECTS := $(addprefix obj\,$($(notdir $(SOURCES)):.cc=.o))