Hi, I noticed today that when running "context --jit" that return codes were not being passed back properly to the shell. For example, with a simple file like this (text.tex): \starttext test\par \mybadmacro\par \stoptext context --jit --nonstopmode test.tex ; echo ", RC=$?" The log output will print: mtx-context | fatal error: return code: 1, RC=0 But the shell return code is zero. The below patch fixes it (I'm no Lua expert so perhaps there is a better approach): --- a/tex/texmf-context/scripts/context/lua/mtx-context.lua +++ b/tex/texmf-context/scripts/context/lua/mtx-context.lua @@ -108,7 +108,7 @@ local function restart(engine_old,engine_new) local command = format("%s --luaonly %q %s --redirected",engine_new,environment.ownname,environment.reconstructcommandline()) report(format("redirect %s -> %s: %s",engine_old,engine_new,command)) local result = os.execute(command) - os.exit(result) + os.exit(result/256) end Best regards, Brian