Can't upgrade Erlang 17.5-based apps to use latest LFE

[oubiwann]

Seems there's a regression from LFE v1.2 to v1.3 such that one or more YAWS records in yaws/include/yaws_api.hrl can't be compiled by LFE. The rebar3 stack trace I get when trying to run the tests is the following:

===> Uncaught error: {case_clause,
                             {error,
                              {undef,
                               [{erl_internal,is_type,[frag_type,0],[]},
                                {lfe_lint,check_type_name,3,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,357}]},
                                {lfe_lint,check_type_def,4,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,339}]},
                                {lfe_lint,collect_form,2,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,208}]},
                                {lists,foldl,3,
                                 [{file,"lists.erl"},{line,1261}]},
                                {lfe_lint,collect_module,2,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,192}]},
                                {lfe_lint,check_module,2,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,176}]},
                                {lfe_lint,module,2,
                                 [{file,
                                   "/Users/dmcgreggor/lab/lfe/lfest/_build/test/plugins/lfe/src/lfe_lint.erl"},
                                  {line,163}]}]}}}
===> Stack trace to the error location:
[{lr3_comp,compile,3,
           [{file,"/Users/dmcgreggor/lab/lfe/lfest/_build/default/plugins/lfe-compile/src/lr3_comp.erl"},
            {line,27}]},
 {rebar_base_compiler,compile_each,3,
                      [{file,"/opt/rebar3-3.10.0/src/rebar_base_compiler.erl"},
                       {line,185}]},
 {lr3_comp,'-compile_normal_app/1-lc$^0/1-0-',4,
           [{file,"/Users/dmcgreggor/lab/lfe/lfest/_build/default/plugins/lfe-compile/src/lr3_comp.erl"},
            {line,65}]},
 {lr3_comp,compile_normal_app,1,
           [{file,"/Users/dmcgreggor/lab/lfe/lfest/_build/default/plugins/lfe-compile/src/lr3_comp.erl"},
            {line,65}]},
 {lr3_comp,'-compile_normal_apps/1-lc$^0/1-0-',1,
           [{file,"/Users/dmcgreggor/lab/lfe/lfest/_build/default/plugins/lfe-compile/src/lr3_comp.erl"},
            {line,47}]},
 {lr3_comp,compile_normal_apps,1,
           [{file,"/Users/dmcgreggor/lab/lfe/lfest/_build/default/plugins/lfe-compile/src/lr3_comp.erl"},
            {line,47}]},
 {rebar_core,do,2,[{file,"/opt/rebar3-3.10.0/src/rebar_core.erl"},{line,154}]},
 {rebar_hooks,run_provider_hooks_,6,
              [{file,"/opt/rebar3-3.10.0/src/rebar_hooks.erl"},{line,48}]}]

[oubiwann]

An LFE ticket has been filed here:

• Regression: Can't compile records from YAWS on Erlang 17.5 when upgrading from LFE 1.2.1 to 1.3 lfe/lfe#380

For a workaround, we can just disable the 17.5 build in the TravisCI config.