➜  crystal git:(master) ✗ /usr/local/bin/llvm-config-3.6 --targets-built
X86

Using /usr/local/bin/llvm-config-3.6 [version=3.6.2]
rm -rf .build
rm -rf ./doc
rm -rf src/llvm/ext/llvm_ext.o
rm -rf src/ext/sigfault.o src/ext/libcrystal.a
clang++-3.6 -stdlib=libc++ -c  -nostdinc++ -I/usr/local/opt/llvm36/lib/llvm-3.6/include/c++/v1  -o src/llvm/ext/llvm_ext.o src/llvm/ext/llvm_ext.cc `/usr/local/bin/llvm-config-3.6 --cxxflags`
cc -fPIC    -c -o src/ext/sigfault.o src/ext/sigfault.c
ar -rcs src/ext/libcrystal.a src/ext/sigfault.o
CRYSTAL_CONFIG_PATH=`pwd`/src ./bin/crystal build  -o .build/crystal src/compiler/crystal.cr -D without_openssl -D without_zlib
Error in ./src/compiler/crystal.cr:4: while requiring "./crystal/**"

require "./crystal/**"
^

in ./src/compiler/crystal/program.cr:1: while requiring "llvm"

require "llvm"
^

in ./src/llvm.cr:1: while requiring "./llvm/**"

require "./llvm/**"
^

in ./src/llvm/di_builder.cr:1: while requiring "./lib_llvm"

require "./lib_llvm"
^

in ./src/llvm/lib_llvm.cr:19: macro didn't expand to a valid program, it expanded to:

================================================================================
--------------------------------------------------------------------------------
   1.
   2.   @[Link("stdc++")]
   3.   @[Link(ldflags: "`/usr/local/bin/llvm-config-3.6 --libs --system-libs --ldflags 2> /dev/null`")]
   4.   lib LibLLVM
   5.     VERSION = "3.6.2"
   6.     BUILT_TARGETS = [:x86, :]
   7.   end
--------------------------------------------------------------------------------
Syntax error in expanded macro: macro_4596053872:6: unterminated array literal

    BUILT_TARGETS = [:x86, :]
                    ^

================================================================================

{% begin %}
^

make: *** [.build/crystal] Error 1

{{ `#{LibLLVM::LLVM_CONFIG} --targets-built`.chomp.strip.downcase.split(' ').map(&.id.symbolize) }} # => [:x86, :]