ieee on Windows problem

[Brad Finney]

On 6/29/2014 12:53 PM, FX wrote:
>>> Unfortunately, executing the program produced a strange error message.
>>> Assertion failed: sizeof(my_fenv_t) <= (size_t) GFC_FPE_STATE_BUFFER_SIZE, file ./fpu-target.h, line 434
>>
>> It looks like on mingw the my_fenv_t struct in libgfortran/config/fpu-387.h has larger size than it should. It probably is the alignment of bitfields __opcode and __unused4. Since we donÂ’t actually access those, the following patch should restore the proper structure size/alignment. Could you check for me? IÂ’ll also check it on x86_64-apple-darwin, and if both go okay, IÂ’ll commit it ASAP.
>
> Given that it doesnÂ’t break anything on x86_64-apple-darwin (which also uses fpu-387.h), and it should fix mingw (IÂ’ve separately tested the new struct size with a cross-compiler), IÂ’ve now committed the patch as revision 212126.
>
>> In addition to your sample, you can find new testsuite files in gcc/testsuite/gfortran.dg/ieee directory. See inside as one of them requires special options (like -ffree-line-length-none -O0).
>
> If you could test your original example with the new version, and also run the tests in the gcc/testsuite/gfortran.dg/ieee directory, thatÂ’d be really great. Many thanks again!
>
> FX
>


Just got the build completed with the patch.  The program that failed 
before works fine now.  I will try some of the other test programs 
tomorrow.  Meanwhile, I have posted the link to the new (corrected) 
build on the gfortran wiki page so others can try the compiler also.