Re: [Boost-users] cpp code and Boost.Interprocess compile error

Subject: Re: [Boost-users] cpp code and Boost.Interprocess compile error
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2008-10-16 11:59:02

hamsinv wrote:
> Hello All,
> 
> I was looking for using stl maps in shared memory, when i came across Boost
> library.
> I have downloaded boost_1_36_0 version. In the examples directory, there is
> a cpp file for sharing stl maps named doc_map.cpp.
> 
> When i compile the same with the following command:
> c++ -I $BOOST_ROOT doc_map.cpp -o shmmap
> 
> I got the following errors:
> /tmp/ccEYJnov.o: In function
> `boost::interprocess::shared_memory_object::priv_open_or_create(boost::interprocess::detail::create_enum_t,
> char const*, boost::interprocess::mode_t)':
> doc_map.cpp:(.text._ZN5boost12interprocess20shared_memory_object19priv_open_or_createENS0_6detail13create_enum_tEPKcNS0_6mode_tE[boost::interprocess::shared_memory_object::priv_open_or_create(boost::interprocess::detail::create_enum_t,
> char const*, boost::interprocess::mode_t)]+0x163): undefined reference to
> `shm_open'
> /tmp/ccEYJnov.o: In function
> `boost::interprocess::detail::mutexattr_wrapper::mutexattr_wrapper(bool)':
> doc_map.cpp:(.text._ZN5boost12interprocess6detail17mutexattr_wrapperC1Eb[boost::interprocess::detail::mutexattr_wrapper::mutexattr_wrapper(bool)]+0x14):
> undefined reference to `pthread_mutexattr_init'
> doc_map.cpp:(.text._ZN5boost12interprocess6detail17mutexattr_wrapperC1Eb[boost::interprocess::detail::mutexattr_wrapper::mutexattr_wrapper(bool)]+0x2b):
> undefined reference to `pthread_mutexattr_setpshared'
> doc_map.cpp:(.text._ZN5boost12interprocess6detail17mutexattr_wrapperC1Eb[boost::interprocess::detail::mutexattr_wrapper::mutexattr_wrapper(bool)]+0x4d):
> undefined reference to `pthread_mutexattr_settype'
> /tmp/ccEYJnov.o: In function
> `boost::interprocess::detail::mutexattr_wrapper::~mutexattr_wrapper()':
> doc_map.cpp:(.text._ZN5boost12interprocess6detail17mutexattr_wrapperD1Ev[boost::interprocess::detail::mutexattr_wrapper::~mutexattr_wrapper()]+0xd):
> undefined reference to `pthread_mutexattr_destroy'
> /tmp/ccEYJnov.o: In function
> `boost::interprocess::shared_memory_object::remove(char const*)':
> doc_map.cpp:(.text._ZN5boost12interprocess20shared_memory_object6removeEPKc[boost::interprocess::shared_memory_object::remove(char
> const*)]+0x33): undefined reference to `shm_unlink'
> collect2: ld returned 1 exit status
> 
> Can anyone please tell me what i'm missing in the compilation.
> 
> Thank you.

You need to link your system's shared memory and pthread library(eg: 
-lrt in linux).

Regards,

Ion