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Subject: Re: Allegro library would need to be recompiled with -fgnu89-inline ?
Date: Sun, 27 Jun 2021 22:52:57 +0200
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Am 27.06.2021 um 18:07 schrieb Damien Guibouret:

> Using -fcommon is certainly not the correct correction (but could be a 
> workaround for old programs with a lot of occurence of this problem), 
> but adding extern or static depending on if the variable should be 
> shared or not is better.

Adding 'static' into a header is hardly ever the right solution.

The rules of thumb are: never write 'extern' in a *.c file, and never 
'static' in a *.h file.