Hi guys,

I'm having some troubles compiling a program on kubuntu lucid;

well the program is a Kinect example, so I used this makefile :

PS: I'm a new ubuntu/kubuntu user so please help me.


CC=g++

# Obsolete
# OPENCV = -lcv -lcxcore -lhighgui -lml -lcvaux
OPENCV = -lopencv_core \
-lopencv_highgui \
-lopencv_imgproc \
-lopencv_video \
-lopencv_legacy \
-lopencv_features2d \
-lopencv_objdetect \
-lopencv_video

OTHERS = -lcvutils -lmylib -lbloblib -lconfig -lOpenNI -lXnVNite -fopenmp #\
#-lblitz -lboost_filesystem-gcc \
#-lclassifier -lcmdline \
#-lcvip -llearutil



LIBNAME = $(OPENCV) $(OTHERS)

LIBPATH = -L$(HOME)/lib/opencvTrunk/lib/ \
-L$(HOME)/lib/cvutils/lib/ \
-L$(HOME)/lib/bloblib/lib/ \
-L$(HOME)/lib/mylib/lib/ \
-L$(HOME)/lib/libconfig/lib/ \
-L$(HOME)/lib/daisy/lib/ \
-L$(HOME)/lib/peopleDetector/

INCLUDEPATH = -I$(HOME)/lib/opencvTrunk/include/opencv/ \
-I$(HOME)/lib/opencvTrunk/include/ \
-I$(HOME)/lib/cvutils/include/ \
-I$(HOME)/lib/bloblib/include/ \
-I$(HOME)/lib/mylib/include/ \
-I$(HOME)/lib/libconfig/include/ \
-I$(HOME)/lib/daisy/include/ \
-I$(HOME)/lib/daisy/include/daisy/ \
-I/usr/include/nite/ \
-I/usr/include/ni/ \
-I$(HOME)/lib/gnuplotLib/

ifeq ($(mode),release)
# RELEASE
CFLAGS = $(LIBPATH) -o3 $(INCLUDEPATH)
else
mode = debug

# DEBUG
CFLAGS = $(LIBPATH) -ggdb -o0 $(INCLUDEPATH)
endif


SRCS = $(wildcard src/*.cpp)

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

EXE = build/Executable



all: $(SRCS) $(EXE)



$(EXE): $(OBJS)
$(CC) $(CFLAGS) $(OBJS) $(LIBNAME) -o $@


.cpp.o:
$(CC) -static $(CFLAGS) $(LIBNAME) -c $< -o $@


clean:
rm -f $(OBJS)
rm -f $(EXE)

redo:
make clean
make all


but when a type make on the terminal, I get this:

g++ -L/home/omar/lib/opencvTrunk/lib/ -L/home/omar/lib/cvutils/lib/ -L/home/omar/lib/bloblib/lib/ -L/home/omar/lib/mylib/lib/ -L/home/omar/lib/libconfig/lib/ -L/home/omar/lib/daisy/lib/ -L/home/omar/lib/peopleDetector/ -ggdb -o0 -I/home/omar/lib/opencvTrunk/include/opencv/ -I/home/omar/lib/opencvTrunk/include/ -I/home/omar/lib/cvutils/include/ -I/home/omar/lib/bloblib/include/ -I/home/omar/lib/mylib/include/ -I/home/omar/lib/libconfig/include/ -I/home/omar/lib/daisy/include/ -I/home/omar/lib/daisy/include/daisy/ -I/usr/include/nite/ -I/usr/include/ni/ -I/home/omar/lib/gnuplotLib/ -lopencv_core -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_legacy -lopencv_features2d -lopencv_objdetect -lopencv_video -lcvutils -lmylib -lbloblib -lconfig -lOpenNI -lXnVNite -fopenmp -o build/Executable
/usr/bin/ld: cannot open output file build/Executable: No such file or directory
collect2: ld returned 1 exit status
make: *** [build/Executable] Errore 1

Does the directory "build" exist? If not, you probably need to create it first.

Edit: a quick test confirms this. If you don't know how to create directories on the command line, you use the command "mkdir", e.g.

$ mkdir foo

will create the directory "foo" in the current directory.

Thank you Nylex for the quick answer,

I did create the buil directory and now I have this:

$ make
g++ -L/home/omar/lib/cvutils/lib/ -L/home/omar/lib/bloblib/lib/ -L/home/omar/lib/mylib/lib/ -L/home/omar/lib/libconfig/lib/ -L/home/omar/lib/daisy/lib/ -L/home/omar/lib/peopleDetector/ -ggdb -o0 -I/home/omar/lib/opencvTrunk/include/opencv/ -I/home/omar/lib/opencvTrunk/include/ -I/home/omar/lib/cvutils/include/ -I/home/omar/lib/bloblib/include/ -I/home/omar/lib/mylib/include/ -I/home/omar/lib/libconfig/include/ -I/home/omar/lib/daisy/include/ -I/home/omar/lib/daisy/include/daisy/ -I/usr/include/nite/ -I/usr/include/ni/ -I/home/omar/lib/gnuplotLib/ -lcv -lcxcore -lhighgui -lml -lcvaux -lOpenNI -lXnVNite -fopenmp -o build/Executable
/usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [build/Executable] Errore 1

do I have to pass the name of the program like: $ make main , or just $ make.

thank you very much,

Omar.

Sorry for the delay. I've not really had time for LQ recently.

Just running "make" should work. Looking at your compile command, though, it seems that you're not actually passing any source files! All I see are library and include paths. There's probably an error in your makefile, then. However, I don't know too much about those, so I may not be able to help.