Tim Caswell wrote: [...] > - It's big. When statically linked, it added about 10MB to my > executable. In contrast, I'm now statically linking LuaJIT, LevelDB > and 11K SLOC of my own C code and it's only 1.5MB. Maybe I did > something wrong though because not all tools with LLVM dependencies > are this large. LLVM's llvm-config is, basically, broken and all the options are wrong --- it seems to assume that you're working *on* LLVM rather than working *with* LLVM. This means that it will try very hard to statically link LLVM. I'm using it for a small expression evaluation language and if you link against the *dynamic* library it's not that bad --- we're talking half megabyte executables here. [...] > - Users need to have LLVM installed and it takes forever to compile. > You can build binaries with LLVM linked in and distribute those. The > Julia language does this (http://julialang.org/). > > I dont want any external dependencies my users have to install. The LLVM guys have a rather weird attitude to users and if you're not building from source they pretty much don't want to know. Which is a pain. Luckily the people who package it for distributions are a bit more sensible; if you're on Debian, you can get the LLVM shared library and header kit with 'apt-get install llvm-3.2-dev'. But yeah, it's not something you can just take a complete copy of and ship with your application. (My language is at http://cowlark.com/calculon if you're interested, although at time of writing my web server has crashed. I've been quite pleased with LLVM; code generation was really easy and the entire language is only 3000 lines of code. I used LLVM rather than LuaJIT because the language is statically typed and uses vectors extensively, and because I can get it to give me a raw function pointer I can just hand to C. However, I suspect LuaJIT would have been a completely viable alternative, although I haven't done any benchmarks.) (It occurs to me that it would be... intriguing... to produce a lookalike API to LLVM's that generates Lua code that gets handed to LuaJIT...) -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ 𝕻𝖍'𝖓𝖌𝖑𝖚𝖎 𝖒𝖌𝖑𝖜'𝖓𝖆𝖋𝖍 𝕮𝖙𝖍𝖚𝖑𝖍𝖚 𝕽'𝖑𝖞𝖊𝖍 𝖜𝖌𝖆𝖍'𝖓𝖆𝖌𝖑 𝖋𝖍𝖙𝖆𝖌𝖓. │
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