Thanks for the patch; I've already merged Philipp Gesang's equivalent patch and will do a new release ASAP.
2013/8/3 Wolfgang Jeltsch <[email protected]> > Hi Philipp, > > I don’t know if you have followed the recent discussion on lualatex-dev > about an issue with the lualatex-math package. > > The code in lualatex-math.lua relies on unpack being a global variable, > which was the case in Lua 5.1, but is not the case anymore in Lua 5.2. > As a result, I get the following error when importing amsmath and > lualatex-math in the same document: > > ! LuaTeX error > .../texmf-dist/tex/lualatex/lualatex-math/lualatex-math.lua:46: > attempt to call upvalue 'unpack' (a nil value) > stack traceback: > .../texmf-dist/tex/lualatex/lualatex-math/lualatex-math.lua:46: > in function 'print_class_fam_slot' > [string "\directlua "]:1: in main chunk. > \__lltxmath_set_mathchar:NN ...\int_eval:n {`#2})} > \scan_stop: > > Other Lua files (lualibs-basic-merged.lua, lualibs-lua.lua, and > luaotfload-merged.lua) use the following code to work around this > incompatibility between Lua 5.1 and Lua 5.2: > > if not table.unpack then > table.unpack=_G.unpack > elseif not unpack then > _G.unpack=table.unpack > end > > By adding this code to lualatex-math.lua at an appropriate place, I was > able to fix the issue with lualatex-math and amsmath. > > I’ve attached a patch. Could this patch or some other fix for the > problem please be incorporated into lualatex-math? Thank you. > > Best wishes, > Wolfgang >
