[swift-dev] Minimal clang to support swift?
william at housedillon.com
Thu Nov 3 12:48:25 CDT 2016
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, I know that I need at least Clang. So, I followed the instructions at 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?
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