Re: [Boost-users] simple thread program

Subject: Re: [Boost-users] simple thread program
From: Eric Lin (kingdavid1_at_[hidden])
Date: 2011-05-24 01:15:30

dear Kaz (and/or boost of c++ programers, especially on Linux/gnu-g++):

  I tried to follow your suggestion
--------
eric_at_eric-laptop:~/cppcookbook$ g++ -static example12-1.cpp -lboost_thread
/tmp/cc0nDT5t.o: In function `boost::mutex::mutex()':
example12-1.cpp:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x17): undefined reference to `pthread_mutex_init'
/tmp/cc0nDT5t.o: In function `boost::mutex::~mutex()':
example12-1.cpp:(.text._ZN5boost5mutexD1Ev[boost::mutex::~mutex()]+0xd): undefined reference to `pthread_mutex_destroy'
/tmp/cc0nDT5t.o: In function `boost::condition_variable::condition_variable()':
example12-1.cpp:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x17): undefined reference to `pthread_mutex_init'
example12-1.cpp:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x67): undefined reference to `pthread_cond_init'
example12-1.cpp:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x7b): undefined reference to `pthread_mutex_destroy'
/tmp/cc0nDT5t.o: In function `boost::condition_variable::~condition_variable()':
example12-1.cpp:(.text._ZN5boost18condition_variableD1Ev[boost::condition_variable::~condition_variable()]+0xd): undefined reference to `pthread_mutex_destroy'
example12-1.cpp:(.text._ZN5boost18condition_variableD1Ev[boost::condition_variable::~condition_variable()]+0x43): undefined reference to `pthread_cond_destroy'
/usr/local/lib/libboost_thread.a(thread.o): In function `boost::detail::(anonymous namespace)::create_current_thread_tls_key()':
thread.cpp:(.text+0x196): undefined reference to `pthread_key_create'
/usr/local/lib/libboost_thread.a(thread.o): In function `T.1155':
thread.cpp:(.text+0x1d3): undefined reference to `pthread_mutex_lock'
thread.cpp:(.text+0x205): undefined reference to `pthread_mutex_unlock'
thread.cpp:(.text+0x240): undefined reference to `pthread_cond_wait'
thread.cpp:(.text+0x27c): undefined reference to `pthread_mutex_unlock'
thread.cpp:(.text+0x290): undefined reference to `pthread_key_create'
thread.cpp:(.text+0x29c): undefined reference to `pthread_mutex_lock'
thread.cpp:(.text+0x2cf): undefined reference to `pthread_cond_broadcast'
thread.cpp:(.text+0x2ed): undefined reference to `pthread_mutex_unlock'
/usr/local/lib/libboost_thread.a(thread.o): In function `boost::detail::get_current_thread_data()':
-----------------------------------------------------------------------------------------
----------------------------------This is just small portion of whole error of compile from my g++
-------------------------------------------------------------------------------------------------
But if I follow Brian's suggestion, it work
------------
eric_at_eric-laptop:~/cppcookbook$ g++ example12-1.cpp -lboost_thread
eric_at_eric-laptop:~/cppcookbook$ LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH ./a.out
eric_at_eric-laptop:~/cppcookbook$ 

--------------------------
any comment on first example is welcome
any simplify setup(like change link lib process(I guess, but not sure), chage env or path on my Linux Bash shell) is welcome

thanks a lot in advance, Eric/*love to attend any free meeting on topic of computer science in LA */

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

________________________________
> Date: Mon, 23 May 2011 23:19:56 +0100
> From: sfx810_at_[hidden]
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] simple thread program hard to compile/link
> with 1.46.1
>
> You need to link it statically. By default gcc will link dynamically.
> use g++ -static flag, and you should be good to go
>
> On Mon, May 23, 2011 at 10:24 PM, Eric Lin
> > wrote:
>
>
> Dear boost programers(especially on linux/g++) :
> I copied that book's C++ Cookbook example12-1, and download boost
> lib's 1.46.1
> on my Ubuntu Linux/ gnu-g++ system, I am not sure I am configure/install
> good enough or not. Anyway, I get a.out
> but when I run a.out
> -----------
> eric_at_eric-laptop:~/cppcookbook$ ./a.out
> ./a.out: error while loading shared libraries:
> libboost_thread.so.1.46.1: cannot open shared object file: No such file
> or directory
> -------------
> is this what you suppose to get?/* I email both first 2 authors: D.
> Ryan Stephens and Christopher Diggins, they not yet reply */
> /* last 2 authors
> Jonathan Turkanis and Jeff Cogswell, I can not get their email address
> */
> if not(I guess), where go wrong and how to fix it?
> ---------
> I am pretty novice on g++ and linux. Hope the following link help
> you debug.
>
> http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html
>
> I also tried
> root_at_eric-laptop:/# ldconfig -p | grep -i boost
> root_at_eric-laptop:/#
> --------
> I read that link, it seem link will go through my /etc/ld.so.conf.d
> there are
> atlas.conf GL.conf i486-linux-gnu.conf libasound2.conf libc.conf
> Xen.conf
>
> so I
> cat /etc/ld.so.conf.d/libc.conf
>
> which show
> #libc default configuration
> /usr/local/lib
>
> and in my /usr/local/lib
> I do have
> libboost_thread.a
> libboost_thread.so
> libboost_thread.so.1.46.1
>
> so I really have no idea how to debug/fix
> plz help
> Eric, in Los Angeles
> ----------------------------------------
> Date: Sun, 22 May 2011 18:43:01 -0700
> From: watanabesj_at_[hidden]
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] simple thread program hard to compile/link
> with 1.46.1
>
>
> AMDG
>
> On 05/22/2011 05:09 PM, Eric Lin wrote:
> >
> > Dear Steven or any boost programers/users:
> >
> > I tried
> > ./bootstrap.sh
> > ./bjam
> > ./bjam install
> >
> > in my /boost_1_46_1/ directory which is auto extracted by my ubuntu
> linux after download
> >
> > but I got the following build/compile errors:(these are just small
> portion of all errors)(c++ compiler is g++ of gnu on intel)
> > ------------------------------
> > cp
> "bin.v2/libs/math/build/gcc-4.4.3/release/link-static/threading-multi/libboost_math_c99f.a"
> "/usr/local/lib/libboost_math_c99f.a"
> >
> > ...failed common.copy /usr/local/lib/libboost_math_c99f.a...
> > common.copy /usr/local/lib/libboost_math_c99l.a
> > cp: cannot create regular file `/usr/local/lib/libboost_math_c99l.a':
> Permission denied
> >
>
> sudo bjam install?
> Alternately, just use -L/path/to/boost_1_46_1/stage/lib.
>
> In Christ,
> Steven Watanabe
>
>
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>
>
> _______________________________________________ Boost-users mailing
> list Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users