[NTG-context] Undefined symbol lua_gettop

Aditya Mahajan adityam at umich.edu
Sat Apr 6 20:02:37 CEST 2019


I am experimenting with using lua libraries with lmtx. I tried the 

1. Download the lcomplex library (from 

2. Untar and modify the Makefile so that LUA_TOPDIR points to the right 
location (/usr in my case).

3. Run make. This creates a complex.so file in the current directory.

4. Create a test file (and put complex.so in the same directory)

   local complex=require("complex")

   z = complex.new(1,1);
   context("The absolute value of $z=%f + j%f$ is $%f$",
            z:real(), z:imag(), z:abs());

This file runs correctly with mkiv, but when I try to run it with lmtx, I 
get the error

lua error       > lua error on line 8 in file 

...etatex/texmf-context/tex/context/base/mkiv/l-package.lua:325: error 
loading module 'complex' from file './complex.so':
         ./complex.so: undefined symbol: lua_gettop

Any idea why this is happening and what I can do to fix it?


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