[Boost-bugs] [Boost C++ Libraries] #4670: Revised boost/config/compiler/gcc.hpp causes linker errors for Cygwin WIN32 apps

Subject: [Boost-bugs] [Boost C++ Libraries] #4670: Revised boost/config/compiler/gcc.hpp causes linker errors for Cygwin WIN32 apps
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-09-21 22:05:12

#4670: Revised boost/config/compiler/gcc.hpp causes linker errors for Cygwin WIN32
apps
-----------------------------------+----------------------------------------
 Reporter:  cvclarkeiii@…          |       Owner:  johnmaddock
     Type:  Bugs                   |      Status:  new        
Milestone:  To Be Determined       |   Component:  config     
  Version:  Boost 1.44.0           |    Severity:  Problem    
 Keywords:                         |  
-----------------------------------+----------------------------------------
 A revision to boost/config/compiler/gcc.hpp makes the assumption that
 because Cygwin does not define a WIN32 macro, a WIN32 macro will never be
 defined when compiling applications for Cygwin.  Win32 applications are
 supported under Cygwin, and the use of some third party libs (i.e. Agilent
 I/O Libraries) requires that a WIN32 macro be defined.  This problem
 causes linker errors similar to the error below:

 scons: done reading SConscript files.
 scons: Building targets ...
 g++ -o test_serialization.o -c -g -Wall -ansi -mwin32 -mthreads
 -I/c/dvlp/boost_1_44_0 test_serialization.cpp
 g++ -o test_serialization.exe test_serialization.o
 -L/c/dvlp/boost_1_44_0/stage/lib -lboost_serialization -lboost_date_time
 -lboost_system
 Cannot export
 _ZN5boost13serialization9singletonINS_7archive6detail12_GLOBAL__N_116guid_initializerI7DerivedEEE12get_instanceEv:
 symbol not found
 Cannot export
 _ZN5boost13serialization9singletonINS_7archive6detail12_GLOBAL__N_116guid_initializerI7DerivedEEE20get_mutable_instanceEv:
 symbol not found
 collect2: ld returned 1 exit status
 scons: *** [test_serialization.exe] Error 1
 scons: building terminated because of errors.

 A patch is attached that fixes this problem

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4670>
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