On Jul 10, 2013, at 10:02 PM, galla rao <gallagnv....@gmail.com> wrote:

> Thanks Feng
>  
> There is some piece of code where variables are declared as
> and when needed, i was porting this to UDK compatible
>  

This is a C99 thing (and C++). You might see if VC++ 20xx has support for this 
C99 feature via a flag?Turning on C++ mode for this is kind of overkill....

GCC defaults to C90, but with a subset of C99 extensions, including the one you 
mentioned. 

Thanks,

Andrew Fish

> The earlier code was on EDK which used /TP option.
> so the same i am trying to continue on UDK as well
>  
> Is there a way to overcome this behaviour with /TP option
> Alternate solution is to remove /TP and declare the variables at the 
> beginning of the function (or) open a block to declare variables and run the 
> code, it does work
> 
> 
>  
> On Thu, Jul 11, 2013 at 7:55 AM, Tian, Feng <feng.t...@intel.com> wrote:
> Why are you using /TP compiler option? From MSDN, you are trying to treat 
> AutoGen.c as C++ file?
> 
>  
> 
> /TC and /TP are "global" variants of /Tc and /Tp. They specify to the 
> compiler to treat all files named on the command line as C source files (/TC) 
> or C++ source files (/TP), without regard to location on the command line in 
> relation to the option.
> 
>  
> 
> From: galla rao [mailto:gallagnv....@gmail.com] 
> Sent: Wednesday, July 10, 2013 20:49
> To: edk2-devel@lists.sourceforge.net
> Subject: [edk2] Buidl Error C2496 from AutoGen.c
> 
>  
> 
> Hello All,
> 
>  
> 
> I am trying to build a optionrom with UDK2010.SR1.UP1 libraries
> 
> with /TP as compiler switch
> 
>  
> 
> I see error C2496 from AutoGen.c, though i never use these PCD's
> 
> when i don't use /TP flag, this error is not seen
> 
>  
> 
> c:\udk2010.up1\Build\MdeModule\RELEASE_VS2010\X64\MdeModulePkg\Bus\Pci\Sasdriver\SasDriver\DEBUG\AutoGen.c(65)
>  : error C2496: '_gPcd_FixedAtBuild_PcdMaximumLinkedListLength' : 'selectany' 
> can only be applied to data items with external linkage
> c:\udk2010.up1\Build\MdeModule\RELEASE_VS2010\X64\MdeModulePkg\Bus\Pci\Sasdriver\SasDriver\DEBUG\AutoGen.c(72)
>  : error C2496: '_gPcd_FixedAtBuild_PcdMaximumAsciiStringLength' : 
> 'selectany' can only be applied to data items with external linkage
> c:\udk2010.up1\Build\MdeModule\RELEASE_VS2010\X64\MdeModulePkg\Bus\Pci\Sasdriver\SasDriver\DEBUG\AutoGen.c(79)
>  : error C2496: '_gPcd_FixedAtBuild_PcdMaximumUnicodeStringLength' : 
> 'selectany' can only be applied to data items with external linkage
> 
> I am using /TP(for convenience of declaring varaibles) and also some extern 
> "C" code
> 
>  
> 
> Please help me know how to overcome this error
> 
>  
> 
>  
> 
> Thanks
> 
> Ranga
> 
> 
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