[LLVMdev] Linking two external linkage GlobalValues

[Chris Lattner]

On Sat, 26 May 2007, Bram Adams wrote:
>
>> Shouldn't these symbols get "common" linkage, aka llvm weak linkage?
>>
>> Are you building the source with -fno-common?
>
> Yes. What does this mean?

-fno-common is a performance win on some targets, but it disallows merging 
of global variables that are defined with no initializers (like your 
example).  Please remove -fno-common, if it builds correctly, then it is 
not an llvm bug.

-Chris

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