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From "Martin Sebor (JIRA)" <>
Subject [jira] Closed: (STDCXX-338) [Cygwin] linker errors due to multiple definition of `std::exception::what()'
Date Wed, 29 Aug 2007 01:45:32 GMT


Martin Sebor closed STDCXX-338.

    Resolution: Fixed

Looks like this has been fixed, although we still have STDCXX-507 to deal with. But that's
a different problem altogether.

> [Cygwin] linker errors due to multiple definition of `std::exception::what()'
> -----------------------------------------------------------------------------
>                 Key: STDCXX-338
>                 URL:
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: Configuration
>    Affects Versions: 4.1.3
>         Environment: Cygwin
>            Reporter: Mark Brown
>            Assignee: Martin Sebor
>             Fix For: 4.2
> 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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