G＆＃x2B;＆＃x2B;无法更改包括-i的路径
我使用g ++ 7.5.0 / gnu在kubuntu上制作C ++。我的文件结构：
bin
| .o files
header
|archiver.h
source
|main.cpp
|archiver.cpp
makefile
我希望我的源文件能够检测标头文件而无需执行#include“ ../header/archiver.h”。我尝试使用：
g++ -I/header
但这不起作用。我得到错误：
g++: fatal error: no input files.
请求的makefile
CC = g++
CFLAGS = -c -Wall
objects = bin/main.o bin/archiver.o
all : $(objects)
$(CC) -o build $(objects)
bin/%.o : source/%.cpp
$(CC) $(CFLAGS) $?
mv *.o bin
.PHONY : clean
clean :
rm -rf all $(objects)
I'm on kubuntu using g++ 7.5.0 / GNU make for C++. My file structure:
bin
| .o files
header
|archiver.h
source
|main.cpp
|archiver.cpp
makefile
I want my source files to be able to detect header files without having to do #include "../header/archiver.h". I've tried using:
g++ -I/header
but this does not work. I get the error:
g++: fatal error: no input files.
makefile that was requested
CC = g++
CFLAGS = -c -Wall
objects = bin/main.o bin/archiver.o
all : $(objects)
$(CC) -o build $(objects)
bin/%.o : source/%.cpp
$(CC) $(CFLAGS) $?
mv *.o bin
.PHONY : clean
clean :
rm -rf all $(objects)
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该命令
不会更改
g ++的任何默认设置，包括您似乎假设的带有后续调用的搜索路径。您需要为每个C ++调用传递该编译器标志，该标志由
Make根据您的makefile。发出的规则。
后者是您需要适应的方法，最好使用预定义的makefile变量，例如
cxxflags或cxxCincludes（查看GNU-MAKE文档以获取详细信息）。对于您的具体情况
应该有效。
The command
doesn't change any default settings for the
g++include search paths with subsequent calls, as you seem to assume.You'll need to pass that compiler flag for each individual c++ call, which are issued by
makeaccording the rules defined in yourmakefile.The latter is what you need to adapt, best using a pre-defined makefile variable like
CXXFLAGSorCXXINCLUDES(check the GNU-make documentation for details).For your specific case
should work.