On Tue, Jun 22, 2010 at 3:24 AM, [email protected] <[email protected]> wrote:
> On 21/06/2010 10:43 PM, Doug Semler wrote:
>>
>> On Sun, Jun 20, 2010 at 11:38 PM, [email protected]<[email protected]>
>> wrote:
>>>
>>> Hello:
>>>
>>> Yesterday I encountered a really weird / oddly gcc bug.
>>> AFAICT , that gcc-4_5 branch during that last past month that the C++
>>> was changed.
>>> Now that the C99 implementation of C++ is in GCC 4.5 branch which indeed
>>> breaks a mingw-w64 compiler, in that aspect of C++.
>>>
>>> In the internal gcc libstdc++ ATM it defaults to using a strictly C99
>>> implementation of.
>>>
>>> So far I see it is breaking the cstdlib and cwchar.
>>>
>>> Until somebody fixes this C99 specific stuff of Cplusplus it is broken.
>>>
>>
>> Do you have an example, including preprocessed source, of the failure?
>>
>
> http://sourceforge.net/tracker/index.php?func=detail&aid=2990320&group_id=202880&atid=983356
>
Without the preprocessed source of the module that is giving the link
error as described in the tracker, I cannot determine the issue
because I am just guessing as to the problem, as I cannot reproduce
it.
The link error described should give the module that is attempting to
pull the unresolved symbol. Run the same g++ command line that
compiles that source file into an object with the additional option
-save-temps in order to generate the <ccfilename>.ii file, and post
that. Also, post the output of x86_64-w64-mingw32-gcc -v.
The reason we need that to assist is the following test program
compiles and links properly.
GNU C++ (GCC) version 4.5.1 20100620 (prerelease) [gcc-4_5-branch-drs
revision 161044] (x86_64-w64-mingw32)
compiled by GNU C version 4.5.1 20100620 (prerelease)
[gcc-4_5-branch-drs revision 161044], GMP version 5.0.1, MPFR version
3.0.0, MPC version 0.8.2
x86_64-w64-mingw32-g++ foo.cc
#include <cstdlib>
int funca() { exit(1); }
int funcb() { _exit(2); }
int funcc() { std::exit(3); }
int funcd() { std::_Exit(4); }
int funce() { ::_Exit(5); }
int main()
{
return 0;
}
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