git clone -c feature.manyFiles=true https://github.com/spack/spack.git
spack install [email protected]

==> Installing llvm-13.0.1-uz4giobhbnsvrlmkq6siezxk6hxedpuw
==> No binary for llvm-13.0.1-uz4giobhbnsvrlmkq6siezxk6hxedpuw found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/09/09c50d558bd975c41157364421820228df66632802a4a6a7c9c17f86a7340802.tar.gz
==> No patches needed for llvm
==> llvm: Executing phase: 'cmake'
==> llvm: Executing phase: 'build'
==> Error: ProcessError: Command exited with status 1:
    'ninja' '-j16' '-v'

2 errors found in build log:
...
  >> 4592    FAILED: tools/gold/CMakeFiles/LLVMgold.dir/gold-plugin.cpp.o
     4593    /home/rutvikc2/spack/lib/spack/env/gcc/g++  -D_GNU_SOURCE -D__STDC_CONSTANT_MACRO
             S -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Itools/gold -I/tmp/rutvikc2/spack
             -stage/spack-stage-llvm-13.0.1-uz4giobhbnsvrlmkq6siezxk6hxedpuw/spack-src/llvm/to
             ols/gold -Iinclude -I/tmp/rutvikc2/spack-stage/spack-stage-llvm-13.0.1-uz4giobhbn
             svrlmkq6siezxk6hxedpuw/spack-src/llvm/include -isystem /home/rutvikc2/spack/opt/s
             pack/linux-ubuntu20.04-skylake_avx512/gcc-9.3.0/zlib-1.2.11-ulsjxh4r33cuzn6puqa37
             zmpj4n54yyb/include -std=c++11 -fPIC -fno-semantic-interposition -fvisibility-inl
             ines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings
              -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-
             fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wn
             o-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-overrid
             e -Wno-comment -Wmisleading-indentation -fdiagnostics-color -ffunction-sections -
             fdata-sections -O3 -DNDEBUG -fPIC     -std=c++14 -MD -MT tools/gold/CMakeFiles/LL
             VMgold.dir/gold-plugin.cpp.o -MF tools/gold/CMakeFiles/LLVMgold.dir/gold-plugin.c
             pp.o.d -o tools/gold/CMakeFiles/LLVMgold.dir/gold-plugin.cpp.o -c /tmp/rutvikc2/s
             pack-stage/spack-stage-llvm-13.0.1-uz4giobhbnsvrlmkq6siezxk6hxedpuw/spack-src/llv
             m/tools/gold/gold-plugin.cpp
  >> 4594    /tmp/rutvikc2/spack-stage/spack-stage-llvm-13.0.1-uz4giobhbnsvrlmkq6siezxk6hxedpu
             w/spack-src/llvm/tools/gold/gold-plugin.cpp:38:10: fatal error: plugin-api.h: No 
             such file or directory
     4595       38 | #include <plugin-api.h>
     4596          |          ^~~~~~~~~~~~~~
     4597    compilation terminated.