Re: Compilation speedup trick: any side-effects?

borphi@[EMAIL PROTECTED]
 wrote:
> Hi all,
> 
> to reduce the build-time of our project we use following trick:
> 
> Instead of compiling each CPP and linking together, we auto-generate a
> CPP which includes all CPP of the project and compile only this one.
> The effect is that the compiler has to compile each involved header
> only once opposed to a per-cpp-file basis.
> 
> The question is: once it compiled successfully (no duplicate
> definitions etc), is there any side-effect possible? Is the linked
> library/executable any different than the one produced the 'normal'
> way?
> 
> There is one issue I already can think of: the order of the execution
> of constructors of static objects (like global variables). Any more?
> 
> Thanks for any assistance!
> Peter Holtwick
> 

Unfortunately that can have some unexpected consequences. The most
obvious one is that static functions/variables and things in an unnamed
namespace can now interact. I.e. it is no longer possible to hide a
function name in a local context.

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