problem in finding path of sourcefiles in makefile

karthik.c · 03-13-2009, 06:15 AM

hi guys im trying to write a makefile which contains :two cpp files and two header files.
now i've put cppfiles in a folder called source whose path is: /root/workspace/source

and header files in a folder called header whose path is:
/root/workspace/makedemo/header

my makefile is in the path:/root/workspace/makedemo

my makefile was like this:

Code:

HEADERS = $(shell /root/workspace/makedemo/header ls *.h)
SOURCES = $(shell /root/workspace/source ls *.cpp)

COMPILERFLAGS = -W -Wall
DEBUGFLAGS = -g
CPPCOMPILER = g++

INCLUDES = -I.


OBJS = $(SOURCES:.cpp=.o)

BINARY = output

all: $(BINARY)

$(BINARY): $(OBJS)
        $(CPPCOMPILER) $(COMPILERFLAGS) $(INCLUDES) -o $(BINARY) $(OBJS)
depend:
        makedepend -f- -- $(SOURCES) > .depend_file
clean:
        rm -rf *.o .depend_file $(BINARY) *~

#DO NOT DELETE

im sure that i've given the correct path but it is showing errors like this:

[root@localhost makedemo]# make
/bin/sh: /root/workspace/source: is a directory
/bin/sh: /root/workspace/source: is a directory
g++ -W -Wall -I. -o output
g++: no input files
make: *** [output] Error 1

any help appreciated...

ErV · 03-13-2009, 06:22 AM

Quote:

Originally Posted by karthik.c

hi guys im trying to write a makefile which contains :two cpp files and two header files.
now i've put cppfiles in a folder called source whose path is: /root/workspace/source

and header files in a folder called header whose path is:
/root/workspace/makedemo/header

my makefile is in the path:/root/workspace/makedemo

my makefile was like this:

Code:

HEADERS = $(shell /root/workspace/makedemo/header ls *.h)
SOURCES = $(shell /root/workspace/source ls *.cpp)

COMPILERFLAGS = -W -Wall
DEBUGFLAGS = -g
CPPCOMPILER = g++

INCLUDES = -I.


OBJS = $(SOURCES:.cpp=.o)

BINARY = output

all: $(BINARY)

$(BINARY): $(OBJS)
        $(CPPCOMPILER) $(COMPILERFLAGS) $(INCLUDES) -o $(BINARY) $(OBJS)
depend:
        makedepend -f- -- $(SOURCES) > .depend_file
clean:
        rm -rf *.o .depend_file $(BINARY) *~

#DO NOT DELETE

im sure that i've given the correct path but it is showing errors like this:

[root@localhost makedemo]# make
/bin/sh: /root/workspace/source: is a directory
/bin/sh: /root/workspace/source: is a directory
g++ -W -Wall -I. -o output
g++: no input files
make: *** [output] Error 1

any help appreciated...

It tries to run /root/workspace/source as a command (open shell, type name of any directory and see what happens). Either add cd, or use ls with full paths.

karthik.c · 03-13-2009, 06:44 AM

hi erv thanks for your response,i did tried ls command after going to the particular directory and its giving me all .h and cpp files.but when i tried to print the value of SOURCES and HEADERS using echo it didnt print anything.im new to the concept of makefile and it would be better if u can say what is the correct way of giving the path of files then??

dwhitney67 · 03-13-2009, 10:11 AM

This should do the trick:

Code:

SOURCES  = $(shell ls /root/workspace/source/*.cpp)

DEBUG    = -g
CXXFLAGS = $(DEBUG) -Wall -ansi -pedantic
INCLUDES = -I/root/workspace/makedemo/header
LDFLAGS  =
LIBS     =
OBJS     = $(SOURCES:.cpp=.o)

BINARY = output

test:
        @echo $(OBJS)

all: $(BINARY)

$(BINARY): $(OBJS)
        $(CXX) $^ $(LDFLAGS) $(LIBS) -o $@

.cpp.o:
        $(CXX) $(CXXFLAGS) $(INCLUDES) -c $<

depend:
        makedepend -f- -- $(SOURCES) > .depend_file

clean:
        $(RM) $(OBJS) .depend_file $(BINARY)

# DO NOT DELETE

P.S. I am not familiar with 'makedepend'; is this a Solaris app?

On Linux, the dependencies can be built similar to the following:

Code:

        @$(CXX) -E -MM $(INCLUDES) $(SOURCES) > .depend_file

karthik.c · 03-14-2009, 12:20 AM

>>P.S. I am not familiar with 'makedepend'; is this a Solaris app?

im not sure whether it is a solaris app,but it is a dependency tool in linux which creates dependencies using the source file.
you can check out man makedepend