linux make file

[heidik]

Hello everyone.

I am new to creating make files. I have been able to create simple makefiles for those applications which do not involve database but am unable to create for the ones that do involve database. When I run that make file, it just deletes the .exe file of that application from the folder. Could anyone please help me with this.

That's how my make file looks

INCLUDES = -I/usr/include/mysql++ -I/usr/include/mysql
LIBRARY = -L/usr/lib64/ -L/usr/lib64/mysql -lmysqlpp
SOURCE = /usr/local/babbage/bin/BreachCheck

VPATH = $(INCLUDES) $(LIBRARY) $(SOURCE)

OBJS = breachtester.o breachwriter.o cherrypicker.o datecl.o formatter.o frontrunner.o liffeconnect.o \
    liffe_runbreach.o logger.o positionmonitor.o reportwriter.o

CC = g++

DEBUG = -g

CFLAGS = -Wall -c $(DEBUG)

LFLAGS = -Wall $(DEBUG)

liffe_runbreach-64bit : $(OBJS)
    $(CC) $(LFLAGS) $(OBJS) -o liffe_runbreach-64bit

breachtester.o : breachtester.h breachtester.cpp breachwriter.h logger.h formatter.h \
        datecl.h liffeconnect.h
        $(CC) $(INCLUDES) $(CFLAGS) breachtester.cpp

breachwriter.o : breachwriter.h breachwriter.cpp breachtester.h liffeconnect.h
    $(CC) $(INCLUDES) $(CFLAGS) breachwriter.cpp

cherrypicker.o : cherrypicker.h cherrypicker.cpp reportwriter.h
    $(CC) $(INCLUDES) $(CFLAGS) cherrypicker.cpp

datecl.o : datecl.h datecl.cpp
    $(CC) $(CFLAGS) datecl.cpp

formatter.o : formatter.h formatter.cpp
    $(CC) $(CFLAGS) formatter.cpp

frontrunner.o : frontrunner.h frontrunner.cpp liffeconnect.h reportwriter.h
    $(CC) $(INCLUDES) $(CFLAGS) frontrunner.cpp

liffeconnect.o : liffeconnect.h liffeconnect.cpp logger.h formatter.h breachtester.h
    $(CC) $(INCLUDES) $(CFLAGS) liffeconnect.cpp

logger.o : logger.h logger.cpp
    $(CC) $(CFLAGS) logger.cpp

positionmonitor.o : positionmonitor.h positionmonitor.cpp logger.h formatter.h
    $(CC) $(INCLUDES) $(CFLAGS) positionmonitor.cpp

reportwriter.o : reportwriter.h reportwriter.cpp frontrunner.h liffeconnect.h
    $(CC) $(INCLUDES) $(CFLAGS) reportwriter.cpp

liffe_runbreach.o : liffe_runbreach.cpp datecl.h logger.h breachtester.h liffeconnect.h formatter.h \
            breachwriter.h cherrypicker.h frontrunner.h reportwriter.h
    $(CC) $(INCLUDES) $(CFLAGS) liffe_runbreach.cpp

clean:
    \rm *.o *~ liffe_runbreach-64bit

tar:
    tar cfv liffe_runbreach-64bit.tar breachwriter.h breachwriter.cpp cherrypicker.h \
        cherrypicker.cpp logger.cpp logger.h breachtester.cpp breachtester.h datecl.h datecl.cpp \
        frontrunner.h frontrunner.cpp positionmonitor.h positionmonitor.cpp liffe_runbreach.cpp

[heidik]

it gives me the following error message

collect2: ld returned 1 exit status
make: *** [liffe_runbreach-64bit] Error 1

[ruslnx]

Could be a variety of things, but please verify that you are using just a tab (i.e. not spaces) at the beginning of the $(CC) ... line portion of your make file shown below.

breachtester.o : breachtester.h breachtester.cpp breachwriter.h logger.h formatter.h \
datecl.h liffeconnect.h
$(CC) $(INCLUDES) $(CFLAGS) breachtester.cpp

Hope this helps.

[heidik]

Thanks ruslnx

Yes I am using tabs and it still isn't working. It deletes the liffe_runbreach-64bit file which is an executable file, when I run the makefile. Any idea why?

[ruslnx]

After you change your present working directory to where you are building/compiling via the "cd" command, enter the following command:

rm ./*.o

This will remove all your ".o" files.

*******
Then try to build each particular object file in your Makefile. For example, your Makefile contains the following lines:

datecl.o : datecl.h datecl.cpp
$(CC) $(CFLAGS) datecl.cpp

If I substitute the actual commands for CC and CFLAGS into the above line, I could just enter the following command:
g++ -Wall -c -g datecl.cpp

The previous command should have created a "datecl.o" file. Check and see if the datecl.o file has been created using the "ls" command. If it has been created, then this is not a problem.

Repeat for each "*.o" section in your Makefile. In other words, enter the commands manually for each "*.o" section and see if you actually create the following files:
breachtester.o, breachwriter.o, cherrypicker.o, datecl.o, formatter.o, frontrunner.o, liffeconnect.o, logger.o, positionmonitor.o, reportwriter.o, and liffe_runbreach.o.

If one of these doesn't build we can look at each of these sections independently. Make sure you manually include all the correct substitutions for all the variables including the $(INCLUDES) like we did for CC and CFLAGS above.

*****************
One other note, if your "*.cpp" files have an #include statement then you could use the target ".o" files above to build other object files to verify the build.

For example, your Makefile has the following lines:

liffe_runbreach.o : liffe_runbreach.cpp datecl.h logger.h breachtester.h liffeconnect.h formatter.h \
breachwriter.h cherrypicker.h frontrunner.h reportwriter.h
$(CC) $(INCLUDES) $(CFLAGS) liffe_runbreach.cpp

This could actually have been built using the following command:
iffe_runbreach.o : liffe_runbreach.cpp datecl.o logger.h breachtester.h liffeconnect.h formatter.h \
breachwriter.h cherrypicker.h frontrunner.h reportwriter.h
$(CC) $(INCLUDES) $(CFLAGS) liffe_runbreach.cpp

As long as the liffe_runbreach.cpp included the following statement:
#include "datecl.h". This way, the ""datecl.o" in the previous line would ensure that any changes to the datecl.h were automatically included.

I normally try to build each targetted ".o" file separately and then include them with the actual build at the end like you're doing with the following section of your Makefile:
liffe_runbreach-64bit : $(OBJS)
$(CC) $(LFLAGS) $(OBJS) -o liffe_runbreach-64bit

I also assume you are entering "make liffe_runbreach-64bit" command versus a "make all" which is the typical command.

***************
As far as deleting the liffe_runbreach-64bit, comment out the clean section for now... Are you sure it was even created? Commenting out the clean section for now will show if it was created and it looks like you're using emacs as your editor.

Hope this helps...

[heidik]

Thanks a LOT ruslnx

Let me follow all your suggestions/instructions and will get back.

Many thanks once again

[heidik]

enter the commands manually for each "*.o" section and see if you actually create the following files:
breachtester.o, breachwriter.o, cherrypicker.o, datecl.o, formatter.o, frontrunner.o, liffeconnect.o, logger.o, positionmonitor.o, reportwriter.o, and liffe_runbreach.o.

It did not create .o files for all those .cpp files which involve dealing with database which are:
breachtester.cpp, breachwriter.cpp, cherrypicker.cpp, frontrunner.cpp, liffeconnect.cpp, positionmonitor.cpp, reportwriter.cpp, and liffe_runbreach.cpp.

and it did creat .o files this way for
datecl.cpp formatter.cpp logger.cpp

and when I ran the make file (not manually for each), no .o file was created for any .cpp file

Commenting out the clean section for now will show if it was created
commenting out the clean section did create liffe_runbreach-64bit and surprisingly running make file again is no more deleting the liffe_runbreach-64bit. I dont know why.

all the errors I see now are related to database connectivity. Should I post them.

Thanks

[ruslnx]

Looks like you've determined that you haven't included some other libraries for the database. I know mysql requires some libraries for the database linking but I don't remember which ones off the top of my head. Refer to MySql links for this info.,,

Sorry I have been unable to help during the paat few days...

I hope I helped.

Happy Thanksgiving!!!!