This page explains how to use clang with the NetBSD base system.
See also [how to use clang to build packages](../pkgsrc/clang/).

Since NetBSD 6, the base system has included clang, but it is not
built or used by default. To use it, set in mk.conf

    MKGCC=no
    MKLLVM=yes
    HAVE_LLVM=yes
    CLANGBASE=/usr

And run "build.sh release". This will apply for both pkgsrc and base.

This will work on ARM, PowerPC, x86, and possibly SPARC64.

MKGCC=no	needed as building GCC alongside is not maintained.  
MKLLVM=yes	builds LLVM libraries.  
HAVE_LLVM=yes	controls clang being built  
CLANGBASE=/usr	instructs pkgsrc where to look for the compiler

# status

On NetBSD-current, clang builds successfully on several architectures.
These builds are with all three of the above flags enabled.

https://releng.netbsd.org/builds/HEAD-llvm/