Created attachment 437202 [details] media-gfx:wings-2.0.4:20160611-111806.log.xz Looks like a parallel make issue.
erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_text.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_tweak.erl erlc '-Dwings_branch=""' -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_u.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_undo.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_util.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_va.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_vbo.erl erlc -Werror -I ../e3d +debug_info '-Dwings_version="2.0.4"' -pa ../intl_tools -o../ebin wings_vec.erl wings_text.erl:22: can't find include lib "wings/intl_tools/wings_chars.hrl" wings_text.erl:105: undefined macro 'WINGS_CHARS_JP' wings_text.erl:31: function char_ranges/1 undefined wings_text.erl:45: function char_ranges/1 undefined Makefile:168: recipe for target '../ebin/wings_text.beam' failed make[1]: *** [../ebin/wings_text.beam] Error 1 make[1]: *** Waiting for unfinished jobs....
It wasn't a parallel make issue, but instead it looks like it was trying to compile against an existing install. So I replaced the canonical /usr/@libdir@/erlang/wings paths with the relative paths in the build directory, and then it suddenly works. Fixed without revision bump.