RE: [Boost-users] Regex link issues

From: Aaron Nauman (nauman_at_[hidden])
Date: 2005-02-14 14:13:21

I found that this problem was caused by boost build system calling
VCVARS32.bat automagically, b/c it didn't think my environment was setup
correctly.

I can see why things are setup this way to prevent tons of configuration
questions, but the build system really should inform the user that it is
setting things automagically.  Silently changing environment variables,
etc can be a huge (couple of days worth) headache in custom
configurations.

Aaron

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] 
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Aaron Nauman
> Sent: Monday, February 14, 2005 8:58 AM
> To: boost-users_at_[hidden]
> Subject: [Boost-users] Regex link issues
> 
> 
> 
> I have upgraded by stlport libs to 4.6.2 (from 4.5) and boost 
> libs to 1_32_0 (from 1_26_0).  I am getting odd linking 
> errors in the regex library.
> 
> I am on vc6 sp5 and linking dynamically.
> 
> If I have something like this in the code, it links fine
> 
>   boost::regex test("foo");
> 
> But if I use an std::string, I get link errors.  For example, 
> this code
> 
>   std::string testStr("bar");
>   boost::regex test(testStr);
> 
> Produces link errors
> 
> vc.obj : error LNK2001: unresolved external symbol
> "__declspec(dllimport) public: unsigned int __fastcall 
> boost::reg_expression<char,class 
> boost::regex_traits<char>,class 
> boost::detail::allocator_adapter<char,class 
> boost::detail::simple_alloc>
> >::se
> t_expression(class _STL::basic_string<char,class 
> _STL::char_traits<char>,class _STL::allocator<char> > const 
> &,unsigned int)" 
> (__imp_?set_expression@?$reg_expression_at_DV?$regex_traits_at_D@boo
> st@@V?$all
> ocator_adapter_at_DVsimple_alloc_at_detail@boost@@@detail
> @2@@boost@@QAIIABV?$basic_string_at_DV?$char_traits_at_D@_STL@@V?$al
> locator_at_D@
> 2@@_STL@@I_at_Z)
> 
> I dumped the exports for the library and there is mismatch in 
> _STL and std namespaces.  This is what I see in the new library
> 
>         323  142 00026E00 
> ?set_expression@?$reg_expression_at_DV?$regex_traits_at_D@boost@@V?$
> allocator_
> adapter_at_DVsimple_alloc_at_detail@boost@@@detail_at_2@@boost@@QAIIABV
> ?$basic_st
> ring_at_DU?$char_traits_at_D@std@@V?$allocator_at_D@2@@std@@I_at_Z
> 
> The only difference seems to be _STL versus std.  I know the 
> std renaming is an stlport feature, but I am not sure where 
> to go from here.
> 
> If I look back into my old regex library, although the 
> interfaces have changed, I see references to _STL, not std.
> 
> Here is old library export (notice _STL)
> 
>          61   3C 000010B0
> ?Grep_at_RegEx@boost@@QAEIAAV?$vector_at_IV?$allocator_at_I@_STL@@@_STL
> @@ABV?$bas
> ic_string_at_DV?$char_traits_at_D@_STL@@V?$allocator_at_D@2@@4_at_I@Z
> 
> Versus the new library export (notice std)
> 
>         100   63 000010E0
> ?Grep_at_RegEx@boost@@QAEIAAV?$vector_at_IV?$allocator_at_I@std@@@std@@
> ABV?$basic
> _string_at_DU?$char_traits_at_D@std@@V?$allocator_at_D@2@@4_at_K@Z
> 
> Can someone please help me figure out how to get these 
> consistent. Thanks!
> 
> Aaron
> 
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