> On 3 Nov 2016, at 18:48, William Dillon via swift-dev <swift-dev@swift.org> 
> wrote:
> 
> HI all,
> 
> I'm working on a resource-constrained embedded system, and I'd like to reduce 
> the size of my swift install as much as possible.  In deployment, I'll need 
> to figure out what a non-compiling swift support install looks like, but 
> that's not the question for today.  Currently, I'd like to have a functioning 
> swift compiler on our hardware for rapid iteration, testing and debug.
> 
> So, my question is about the support that the swift compiler requires.  Based 
> upon the instructions at swift.org <http://swift.org/>, I know that I need at 
> least Clang.  So, I followed the instructions at llvm.org <http://llvm.org/> 
> and built it.  It seems to work, but it's 'uuge; around 700 MB with 
> MinSizeRel and -Os.  Add Swift to it, and we're at about 1.1GB.  As a point 
> of reference, I noticed that the Clang binary I built is 45Mb relative to the 
> 13Mb clang in Debian.  
> 
> How much of llvm and clang do I really need to support Swift?
> 
> Is there any way built into llvm/clang's build system to strip the binaries, 
> or otherwise make them smaller?
> 
> Thanks!
> - Will
> 
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The swift compiler delegates to clang for linking executables on non-Darwin 
platforms.
I believe that’s the only reason we need it - other things from libclang, such 
as stuff for the importer, seem to get statically-linked.

- Karl
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