Compiling C++ code with boost library

Question

So I installed boost library as follows

cd /usr/local/
sudo tar --bzip2 -xf ~/Downloads/boost_1_52_0.tar.bz2
sudo ./bootsrap.sh
sudo ./b2 install

Now, I want to compile a code that uses boost library, and the makefile has these two lines to idenity the location of boost: (INC=.. and BOOSTLIB=..)

OBJS = utility.o PtDebug.o
CC = g++
INC = /usr/local/boost_1_52_0/
BOOSTLIB = /usr/local/include/boost/
CFLAGS = -Werror -g


all: my_program

and an example line of linking to boos in the makefile is

$(CC) $(FLAGS) $(OBJS)  ipMT.o -o ipmt -L$(BOOSTLIB) -lboost_date_time -lboost_thread

But when I try to make, it fails with this error:

g++  -Werror -g utility.o PtDebug.o  ratioWeightedCombIP.o -o rwcip -L/usr/local/include/boost/ -lboost_date_time -lboost_thread
/usr/bin/ld: utility.o: undefined reference to symbol '_ZN5boost6system15system_categoryEv'
//usr/local/lib/libboost_system.so.1.57.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [misp] Error 1

@Bot No, it certainly should not be migrated to Super User. This type of question is a totally valid for SO. — Captain Obvlious
– Captain Obvlious, Commented Jan 11, 2015 at 21:38

Dirk is no longer here · Accepted Answer · 2015-01-11 21:39:22Z

3

You are almost there. Add

-lboost_system

to your link line to yield (now with indentation)

$(CC) $(FLAGS) $(OBJS)  ipMT.o -o ipmt \
  -L$(BOOSTLIB) -lboost_date_time -lboost_thread -lboost_system

The error message gave you a hint: No symbol '_ZN5boost6system15system_categoryEv' which indicates that

the symbol came from the Boost System namespace, hence suggesting that you need to link this, and
offering a hint via a tool like c++filt

If you have c++filt you can see the mangled identifier expanded:

edd@max:~$ c++filt _ZN5boost6system15system_categoryEv
boost::system::system_category()
edd@max:~$

answered Jan 11, 2015 at 21:39

Dirk is no longer here

370k60 gold badges668 silver badges742 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Compiling C++ code with boost library

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related