Steve Bobrowski wrote:
Hi,
I'm a C++ newbie trying to use the Boost regex libraries. Here's my situation.
My system is Red Hat Linux 9, using the Borland C++BuilderX Personal IDE (which uses the g++ compiler).
I downloaded and installed Boost from boost.org using the command:
bjam -sTOOLS=gcc install
The install seemed to complete fine, with 2900+ targets updated.
Good :-)
The libraries install in /usr/local/include/boost-1_31/boost.
I created the following link:
ln -s /usr/local/include/boost-1_31/boost /usr/include/boost
Very reasonable thing to do ;-)
I then use C++BuilderX to try and compile one of the example programs for the regex libaries that I found in the documentation. The source code is:
[cut]
In function `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const& boost::re_detail::get_default_expression<char>(char)': "perl_matcher_common.hpp": /usr/include/boost/regex/v4/perl_matcher_common.hpp undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::reg_expression[in-charge](char const*, unsigned, std::allocator<char> const&)' at line 734
I got it working once I added /usr/local/lib/libboost_regex-gcc.a to my project. Thanks! Steve "Rene Rivera" <grafik.list@redshift-software.com> wrote in message news:408EB54A.9040009@redshift-software.com... linux/Debug_Build/splittest.o(.gnu.linkonce.t._ZN5boost11regex_splitISt20bac
k_insert_iteratorISt4listISsSaISsEEEcSt11char_traitsIcESaIcENS_12reg
ex_traitsIcEES8_EEjT_RSbIT0_T1_T2_ERKNS_14reg_expressionISC_T3_T4_EENS_15reg
ex_constants12_match_flagsEj+0x12e):
That would be a link error.
[cut]
After searching around extensively, I've not come up with any solution to my problem. Can someone please point me in the right direction? It seems like I'm just missing some configuration step along the way.
Since Boost.Regex is not a header only library you need to link to the built regex library. The install procedure installed a bunch of these built libraries in "/usr/local/lib" for you. Look for libboost_regex* files. Depending on what your use requirements are you need to pick one of them and tell C++BuilderX to link to it. What the various names mean is describe in the Getting Started docs.
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