while building statically an error
/usr/bin/ld: cannot find -lbz2
I am currently using arch linux. earlier I used ubuntu there I used
sudo apt-get install libbz2-dev
I am new to arch and dont know which library to install and how to find such libraries in future.
Maybe this info be useful:
archlinux:~$ ls /usr/lib/ | grep bz2
libbz2.so
libbz2.so.1
libbz2.so.1.0
libbz2.so.1.0.6
archlinux:~$ locate libbz2
/usr/lib/libbz2.so
/usr/lib/libbz2.so.1
/usr/lib/libbz2.so.1.0
/usr/lib/libbz2.so.1.0.6
/usr/lib32/libbz2.so
/usr/lib32/libbz2.so.1
/usr/lib32/libbz2.so.1.0
/usr/lib32/libbz2.so.1.0.6
I can see that libbz2.a file is missing how to get that?
Related
I am trying to link boost::asio using terminal (I'm also using a text editor).
What I tried
I did some researches on Internet (I didn't found nothing about my distro) - I found I must install that library by executing the following command on the terminal:
sudo pacman -S libboost-all-dev
This is the output I get:
error: the following package was not found: libboost-all-dev
Final question
How can I install and link correctly boost::asio with my .cpp file?
Notes:
I'm using Archlinux
To find a package in Arch Linux, do:
sudo pacman -Ss boost
This will list packages with the string boost. Or, you can look up on the package website: https://www.archlinux.org/packages/extra/x86_64/boost/
One thing you should understand about boost is that a majority of its modules are header-only; if the linker complains about undefined references then you would have to link the required files. To link boost-asio, you would do
g++ -lboost-system <source> <exe>
How to install boost in Arch Linux
You cannot link libraries inside your *.cpp files. You should enumerate required libraries using the -l option in the g++ command line.
g++ -lboos-asio -lboost-system myfile.cpp -o myapp
I'm currently using Fedora 20 x86_64.
I've built libsndfile with these commands:
sudo ./configure BASE_FLAGS=-32
sudo make
sudo make install
This all goes well and I can find the compiled library in /usr/local/lib.
I want to use this in an application that will be built in 32bit.
The problem occurs when I try to compile that application. I get the following error:
/usr/bin/ld: skipping incompatible /builddir/Code/Platformer/../Dependencies/libsndfile/lib/Linux/libsndfile.so when searching for -lsndfile
/usr/bin/ld: skipping incompatible /builddir/Code/Platformer/../Dependencies/libsndfile/lib/Linux/libsndfile.a when searching for -lsndfile
/usr/bin/ld: cannot find -lsndfile
The "skipping incompatible" might suggest that I'm doing something wrong when compiling sndfile but since I'm kind of new to this I can't find what it is. I tried different configurations but they all have the same result.
If this needs more code or something, let me know what you need.
For anyone with the same problem - try to look here:
ld cannot find an existing library
Generally there is probably a symlink missing, because the '-devel' library is not istalled. That is why
sudo yum install libsndfile-devel.*
fixed it for me.
in know i need to locate this symbol in library.. I am trying to compile avahi based test code to view services. But i am getting undefined reference toavahi_alternative_service_name'`.. I don't know which library contain this,I am running UBUNTU 12.04. I tried to install several packages but no success.. Any idea
Thanks..
I have following packages installed
dpkg --get-selections | grep avahi
avahi-autoipd install
avahi-daemon install
avahi-utils install
libavahi-cil-dev install
libavahi-client-dev install
libavahi-client3 install
libavahi-client3:i386 install
libavahi-common-data install
libavahi-common-data:i386 install
libavahi-common-dev install
libavahi-common3 install
libavahi-common3:i386 install
libavahi-core7 install
libavahi-glib-dev install
libavahi-glib1 install
libavahi-gobject0 install
libavahi-ui-dev install
libavahi-ui-gtk3-0 install
libavahi-ui0 install
libavahi1.0-cil install
command
gcc -fpermissive testAvahi.c -o testAvahi
Actually needed to locate libraries and then needed to pass them to linker, So follwing command did work for me
gcc -fpermissive testAvahi.c -o testAvahi -L/usr/lib/x86_64-linux-gnu/ -lavahi-client -lavahi-common
if you have a common folder where you place your c++ libraries you can check search for the function using the nm command
something like
cd /usr/lib
nm -AC * | grep avahi_alternative_service_name
The nm utility is available in binutils(sudo apt-get install binutils)
I have installed libboost-dev through apt-get, and it's placed in /usr/lib.
/usr/lib$ ls | grep boost
libboost_filesystem.so.1.46.1
libboost_iostreams.so.1.46.1
libboost_serialization.so.1.46.1
libboost_system.so.1.46.1
libboost_thread.so.1.46.1
libboost_wserialization.so.1.46.1
But when I tried to compile a source that uses boost_thread I still got a error.
$ g++ tcp_echo.cpp -o tcp_echo -L/usr/lib -llibboost_thread
/usr/bin/ld: cannot find -lboost_thread
collect2: ld returned 1 exit status
$ g++ tcp_echo.cpp -o tcp_echo -L/usr/lib -lboost_thread
/usr/bin/ld: cannot find -lboost_thread
collect2: ld returned 1 exit status
What's the right way to install and link to libboost?
One thing I notice is that you do have no libboost_thread.so. You have
the versioned 1.46.1 file but usually libraries will create a symbolic
link to the versioned copy with the undecorated name. That might not
be it but it's one thing I noticed. (This is typically done by the
installer.) – Omaha
I think this is the point. It imply that I installed libboost the wrong way. In fact, I only installed libboost-dev:
sudo apt-get install libboost-dev
But what should I do is:
sudo apt-get install libboost-dev libboost1.46-doc libboost-date-time1.46-dev ibboost-filesystem1.46-dev libboost-graph1.46-dev libboost-iostreams1.46-dev libboost-math1.46-dev libboost-program-options1.46-dev libboost-python1.46-dev libboost-random1.46-dev libboost-regex1.46-dev libboost-serialization1.46-dev libboost-signals1.46-dev libboost-system1.46-dev libboost-test1.46-dev libboost-thread1.46-dev libboost-wave1.46-dev
(Or, in my particular case, install libboost-system1.46-dev libboost-thread1.46-dev at least)
And once you install them correctly, there should be .a and .so in /usr/lib.
/usr/lib$ ls | grep boost
libboost_date_time.a
libboost_date_time-mt.a
libboost_date_time-mt.so
libboost_date_time.so
libboost_date_time.so.1.46.1
libboost_filesystem.a
libboost_filesystem-mt.a
... and so on ...
In Ubuntu 16.04, the package is named: libboost-all-dev (not libboost-dev-all)
The comment box screwed up the quoting of this suggestion, so I'm posting it as an answer to get correct quoting.
It used to be, Ubuntu had the meta-package libboost-dev-all to install all of those. However, I can't seem to find it now. Here's a command line that might help:
sudo apt-get install `apt-cache search libboost | \
grep -- -dev | \
grep -v '[12]\.[0-9]' | \
awk '{ print $1; }'`
(Taken from https://github.com/imvu-open/istatd/ file install-boost-dev.sh )
I'm trying to build a 32-bit application on Ubuntu 11.04 x64. I'm having some issues with the build because of linker errors with libboost. The build statement has -lboost_system in it, but when I try to build I get a bunch of these:
CommunicationModule.cpp:(.text+0x68c1): undefined reference to boost::system::generic_category()
CommunicationModule.cpp:(.text+0x68d7): undefined reference to boost::system::system_category()
Everything I've found on google says I need to link to the boost_system library. One place I found says to try linking to it directly, but when i do locate boost_system the result is empty. When I try doing a sudo apt-get install libboost-system-dev it tells me that it's already installed. I'm kind of at a loss here. The library is installed, but it's not being found by locate?
Can anyone tell me what I need to do to properly link to boost::system? I'm fairly new to linux and the complexities of compilers so any help here would be appreciated.
Update:
Here is the output of dpkg -L libboost-system1.42-dev:
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libboost-system1.42-dev
/usr/share/doc/libboost-system1.42-dev/copyright
/usr/share/doc/libboost-system1.42-dev/NEWS.Debian.gz
/usr/share/doc/libboost-system1.42-dev/README.Debian.gz
/usr/lib
/usr/lib/libboost_system.a
/usr/lib/libboost_system-mt.so
/usr/lib/libboost_system-mt.a
/usr/lib/libboost_system.so
Is there a flag I can use to link to one of these directly? I tried using -L /usr/lib/libboost_system.so and -L /usr/lib/libboost_system-mt.so and neither of those fixed the issue. Same with just adding /usr/lib/libboost_system.a and /usr/lib/libboost_system-mt.a to the build statement.
Here is the compilation line:
g++ -m32 -Wl,-O1 -o UTNaoTool [.o files] -L/usr/lib32 -lqglviewer-qt4 -lqwt-qt4 -lboost_system -lboost_thread -lQtXml -lQtOpenGL -lQtGui -lQtNetwork -lQtCore -lGLU -lpthread
Update 2:
I downloaded boost 1.49 and built everything for 32-bit and that seemed to help. A lot of the errors went away, but now I still have these:
CommunicationModule.cpp:(.text+0x68c1): undefined reference to
boost::system::get_generic_category()
Note that the function is different. So all of my errors are regarding undefined references to get_system_category() and get_generic_category() now. I tried adding a -lboost_filesystem to the build command but that didn't fix this, and I made sure it was referencing the 32-bit library that I built when I built libboost_system.
Looking at my own installation, it seems libboost-system-dev does not install the libraries. Using dpkg to tell me what was installed bz libboost-system-dev I get:
$ dpkg -L libboost-system-dev
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libboost-system-dev
/usr/share/doc/libboost-system-dev/copyright
/usr/share/doc/libboost-system-dev/changelog.gz
Poking around, I think you need to install libboost-system1.48.1 (or some other version).
sudo apt-get install libboost-system1.XX.Y
You can also search fo rthe libraries using the find command, for example, search under /usr for all files starting with libboost_system:
find /usr -name "libboost_system*"
Edit: Since you are cross-compiling from a 64 bit OS to a 32 bit one, you need 32 bit versions of the boost libraries. I would be tempted to set up a small 32 bit virtual machine to do this, rather than cross-compiling all the dependencies.
I had the same problem with boost_serialization here is what i found out after couple of googling..
first this library need to be compiled separately :
so after downloading the boost library ,extract it and execute sudo ./bootstrap.sh' then
sudo ./b2 --with-system
after this step you should be find a result when executing locate boost_system
then to link it manually I did:
both should work
g++ boostexample.cpp -o run /PATH/libboost_serialization.a
g++ boostexample.cpp -o run -L/PATH/ -lboost_serialization
well this is a little work around and I'm still looking for how to link the library properly
I hope this helped :)