这是我的项目:
project
|--- main.cpp
|--- makefile
|--- test
|--- Test.cpp
|--- Test.h
以下是makefile
:
g++1x:=g++ -std=c++14 -stdlib=libc++ -MMD -MP
cflags:= -Wall -lncurses
PATHS:=./ ./test/
TARGET:=matrix.out
SRC:=$(foreach PATH,$(PATHS),$(wildcard $(PATH)/*.cpp))
OBJDIR:=.obj
OBJ:=$(addprefix $(OBJDIR)/,$(notdir $(SRC:.cpp=.o)))
.PHONY: install
install: $(OBJDIR) $(TARGET)
$(OBJDIR):
mkdir -p $(OBJDIR)
$(TARGET): $(OBJ)
$(g++1x) $(cflags) -o $@ $^ -g
$(OBJDIR)/%.o: %.cpp
$(g++1x) -c -o $@ $< -g
$(OBJDIR)/%.o: ./test/%.cpp
$(g++1x) -c -o $@ $< -g
-include $(addprefix $(OBJDIR)/,$(notdir $(SRC:.cpp=.d)))
.PHONY: clean
clean:
rm -f $(TARGET)
rm -rf $(OBJDIR)
效果很好,但我有两个问题:
1)是否可以避免foreach
PATHS
,以便我可以对所有cpp项目使用相同的makefile
?
2)如你所见,要生成main.o
和Test.o
,我会写两个块:
$(OBJDIR)/%.o: ./test/%.cpp
和$(OBJDIR)/%.o: %.cpp
。
是否可以只写一次?
我尝试过如下但不起作用:
$(OBJDIR)/%.o: $(foreach PATH,$(PATHS),$(wildcard $(PATH)/%.cpp))
$(g++1x) -c -o $@ $< -g
我甚至尝试过这样但是它仍然不起作用:
$(OBJDIR)/%.o: %.cpp ./test/%.cpp
$(g++1x) -c -o $@ $< -g
答案 0 :(得分:7)
您应该将源树保留在对象树中。通过这种方式,可以更轻松地创建全局规则并保持依赖关系。
PARENT_MOL_CHEMBL_ID ABL EGFR TP53
C10 1 1 0
C939 0 0 1
'return' outside function
编辑:您可以将对象目录添加为order only prerequisites,将# Make the request to publish and check status code
print("\tUploading...")
server_response = requests.post(publish_url, data=payload,
headers={'x-tableau-auth': auth_token, 'content-type': content_type})
_check_status(server_response, 201)
return
的数量减少到最小值:
# Use the shell find command to get the source tree
SOURCES := $(shell find * -type f -name "*.c")
OBJDIR := .objects
# Keep the source tree into the objects tree
OBJECTS := $(addprefix $(OBJDIR)/,$(SOURCES:.c=.o))
all: mytarget
mytarget: $(OBJECTS)
$(CC) $^ -o $@
# As we keep the source tree we have to create the
# needed directories for every object
$(OBJECTS): $(OBJDIR)/%.o: %.c
mkdir -p $(@D)
$(CC) -MMD -MP -c $< -o $@
-include $(OBJECTS:.o=.d)