Elixir does not build #174

cd /opt/pkgsrc/lang/elixir
bmake
=> Bootstrap dependency digest>=20010302: found digest-20180917
=> Fetching elixir-1.7.4.tar.gz
=> Total size: 2139938 bytes
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   126    0   126    0     0    408      0 --:--:-- --:--:-- --:--:--   442
100 2089k    0 2089k    0     0  2261k      0 --:--:-- --:--:-- --:--:-- 2261k
=> Checksum SHA1 OK for elixir-1.7.4.tar.gz
=> Checksum RMD160 OK for elixir-1.7.4.tar.gz
=> Checksum SHA512 OK for elixir-1.7.4.tar.gz
===> Installing dependencies for elixir-1.7.4
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20151107
=> Build dependency gcc7>=7.3: found gcc7-7.3.0nb4
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency erlang>=18.0: found erlang-21.2.4
===> Overriding tools for elixir-1.7.4
===> Extracting for elixir-1.7.4
===> Patching for elixir-1.7.4
=> Applying pkgsrc patches for elixir-1.7.4
===> Creating toolchain wrappers for elixir-1.7.4
===> Configuring for elixir-1.7.4
=> Replacing elixir interpreter in bin/mix.
===> Building for elixir-1.7.4
/bin/sh[1]: cd: lib/elixir: [No such file or directory]
gmake: *** [Makefile:65: erlang] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /opt/pkgsrc/lang/elixir
*** Error code 1

Stop.
bmake: stopped in /opt/pkgsrc/lang/elixir

/bin/sh
[033[01;31m]dev [033[01;34m]W $ [033[00m]cd /tmp
[033[01;31m]dev [033[01;34m]W $ [033[00m]mkdir lib
[033[01;31m]dev [033[01;34m]W $ [033[00m]cd lib
/bin/sh: cd: lib: [No such file or directory]
[033[01;31m]dev [033[01;34m]W $ [033[00m]