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Date: Sat, 10 Mar 2007 15:12:09 -0800 (PST)
From: "Mark Brown (JIRA)" <jira@apache.org>
To: stdcxx-dev@incubator.apache.org
Subject: [jira] Commented: (STDCXX-338) [Cygwin] linker errors due to
 multiple definition of `std::exception::what()'
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    [ https://issues.apache.org/jira/browse/STDCXX-338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12479884 ] 

Mark Brown commented on STDCXX-338:
-----------------------------------

If it helps, I also get the same error with the latest trunk and gcc 4.1.1:

gcc -c -I/home/mbrown/stdcxx/include/ansi -D_RWSTDDEBUG   -mthreads -D_RWSTD_USE_CONFIG -I/home/mbrown/stdcxx/include -I/home/mbrown/stdcxx-gcc-4.1.1-15s/include -I/home/mbrown/stdcxx/examples/include  -pedantic -nostdinc++ -g  -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align   t.cpp
gcc t.o -o t -mthreads -L/home/mbrown/stdcxx-gcc-4.1.1-15s/lib -lstd15s  -lsupc++ -lcatgets -liconv -lm 
/usr/local/gcc-4.1.1/lib/gcc/i686-pc-cygwin/4.1.1/../../../libsupc++.a(eh_exception.o): In function `_ZNSt13bad_exceptionD2Ev':
/home/mbrown/gcc-4.1.1/libstdc++-v3/libsupc++/eh_exception.cc:38: multiple definition of `std::exception::what() const'
/home/mbrown/stdcxx-gcc-4.1.1-15s/lib/libstd15s.a(exception.o):/home/mbrown/stdcxx/src/exception.cpp:341: first defined here
collect2: ld returned 1 exit status
make: *** [t] Error 1


> [Cygwin] linker errors due to multiple definition of `std::exception::what()'
> -----------------------------------------------------------------------------
>
>                 Key: STDCXX-338
>                 URL: https://issues.apache.org/jira/browse/STDCXX-338
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: Configuration
>    Affects Versions: 4.1.3
>         Environment: Cygwin
>            Reporter: Mark Brown
>
> When linking with stdcxx on Cygwin I get errors like:
> /usr/lib/gcc/i686-pc-cygwin/3.4.4/libsupc++.a(eh_exception.o):(.text+0x80): multiple definition of `std::exception::what() const' 
> The config.log file shows these errors for the EXCEPTION_WHAT test:
> gcc -c -pedantic -nostdinc++ -g  -Wall -W -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align -D_RWSTDDEBUG -D_RWSTD_USE_CONFIG -I. /build
> /sebor/stdcxx-4.1.3/etc/config/src/EXCEPTION_WHAT.cpp
> In file included from /home/mbrown/stdcxx-4.1.3/etc/config/src/EXCEPTION_WHAT.cpp:10:
> /home/mbrown/stdcxx-4.1.3/etc/config/src/BAD_ALLOC_ASSIGNMENT.cpp:83: warning: `class std::exception' has virtual functions but non-virtual destructor
> /home/mbrown/stdcxx-4.1.3/etc/config/src/BAD_ALLOC_ASSIGNMENT.cpp:333: warning: unused parameter 'rhs'
> /home/mbrown/stdcxx-4.1.3/etc/config/src/BAD_ALLOC_ASSIGNMENT.cpp:388: warning: unused parameter 'rhs'
> gcc EXCEPTION_WHAT.o   -lm -lsupc++ -o EXCEPTION_WHAT
> /usr/lib/gcc/i686-pc-cygwin/3.4.4/libsupc++.a(eh_exception.o):(.text+0x0): multiple definition of `std::exception::~exception()'
> EXCEPTION_WHAT.o:/home/mbrown/stdcxx-4.1.3/etc/config/src/BAD_ALLOC_ASSIGNMENT.cpp:(.text$_ZNSt9exceptionD2Ev[std::exception::~exception()]+0x0): first defined here
> collect2: ld returned 1 exit status

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