[lldb-dev] Exclusively build and install LLDB?

[Kamil Rytarowski via lldb-dev]

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On 02.12.2015 19:36, Jim Ingham wrote:
> Todd is right, at runtime lldb does need to find some of the clang
> include files in order to build modules for its own purposes.  On
> an OS X install, these headers are put in:
> 
> LLDB.framework/Resources/Clang
> 
> and are:
> 
>> ls
> ./			avx512vlbwintrin.h	lzcntintrin.h		stdatomic.h ../
> avx512vlintrin.h	mm3dnow.h		stdbool.h Intrin.h		avxintrin.h
> mm_malloc.h		stddef.h __stddef_max_align_t.h	bmi2intrin.h
> mmintrin.h		stdint.h __wmmintrin_aes.h	bmiintrin.h
> module.modulemap	stdnoreturn.h __wmmintrin_pclmul.h	cpuid.h
> nmmintrin.h		tbmintrin.h adxintrin.h		emmintrin.h		pmmintrin.h
> tgmath.h altivec.h		f16cintrin.h		popcntintrin.h		tmmintrin.h 
> ammintrin.h		float.h			prfchwintrin.h		unwind.h arm_acle.h
> fma4intrin.h		rdseedintrin.h		vadefs.h arm_neon.h		fmaintrin.h
> rtmintrin.h		varargs.h avx2intrin.h		ia32intrin.h		shaintrin.h
> wmmintrin.h avx512bwintrin.h	immintrin.h		smmintrin.h		x86intrin.h 
> avx512erintrin.h	iso646.h		stdalign.h		xmmintrin.h avx512fintrin.h
> limits.h		stdarg.h		xopintrin.h
> 
> Other than that, lldb shouldn't need to install any other clang
> bits for its own purposes - and on OS X at least lldb only installs
> itself and not any of the clang binaries, so in practice this can
> be made to work.
> 
> Also, building lldb requires a lot of clang/llvm headers that I
> don't think get installed in the normal course of things.  So I'm
> not sure how easy it is going to be to build lldb against an
> installed llvm/clang.  I couldn't tell for sure whether this was
> another of your goals, but it may take a fair bit of monkeying
> around if you want to do things this way.
> 

It seems that the only library / header out of public includes is for
handling raw (in C) Regular Expressions. I have a work-in-progress
code switching to public llvm::Regex instead. Other then that, there
are minor changes in CMake.

I'm ignoring autoconf framework since it's marked to be abandoned.
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