Dear Sirs

Is there a way to call external lua modules inside luatex. In particular I
would like to call gsl libray using a gsl-lua binding (
http://www.stefanom.org/devel/gsl-lua)/.
I'm not talking about gsl-shell that needs luajit.

I'm working in MacOSX with minimals.
My LUAINPUTS are:

 LUAINPUTS  =
".;$TEXINPUTS;$TEXMF/scripts/context/lua//;/usr/local/lib/lua/5.2//",
 CLUAINPUTS      =
".;$SELFAUTOLOC/lib/{context,luatex,}/lua//;/usr/local/lib/lua/5.2//",

>ls /usr/local/lib/lua/5.2
GSLdefs2.lua
alien_c.la
alien_c.so
gsl.lua

The GSL library is called using the Alien. If i try:



 \starttext

      \enabletrackers[resolvers.libraries]

      \startluacode
          print("LUAINPUTS",os.getenv("LUAINPUTS"))

          require("alien") ;
      \stopluacode

 \stoptext

[...]
resolvers       > libraries > registered lua format path 32:
/Applications/Context/tex/texmf-osx-64/scripts/context/lua/
resolvers       > libraries > registered lua format path 33:
/Applications/Context/tex/texmf/scripts/context/lua/
resolvers       > libraries > registered lua format path 34:
/usr/local/lib/lua/5.2
resolvers       > libraries > lua format, checking 34 paths
resolvers       > libraries > lua format, identifying 'alien.lua' using
format 'tex'
resolvers       > libraries > lua format, identifying 'alien.lua' using
format 'lua'
resolvers       > libraries > locating, level '1', method 'lib variable
format', name 'alien'
resolvers       > libraries > registered lib format path 1: .
resolvers       > libraries > registered lib format path 2:
/Applications/Context/tex/texmf-osx-64/bin/lib/context/lua/
resolvers       > libraries > registered lib format path 3:
/Applications/Context/tex/texmf-osx-64/bin/lib/luatex/lua/
resolvers       > libraries > registered lib format path 4:
/Applications/Context/tex/texmf-osx-64/bin/lib/lua/
resolvers       > libraries > registered lib format path 5:
/usr/local/lib/lua/5.2
resolvers       > libraries > lib format, checking 5 paths
resolvers       > libraries > lib format, identifying 'alien.so' using
format 'lib'
resolvers       > libraries > locating, level '1', method 'lua extra list',
name 'alien'
resolvers       > libraries > no extra lua paths defined
resolvers       > libraries > locating, level '1', method 'lib extra list',
name 'alien'
resolvers       > libraries > no extra lib paths defined
resolvers       > libraries > locating, level '1', method 'path
specification', name 'alien'
resolvers       > libraries > using builtin lua path 1:
/usr/local/share/lua/5.2/?.lua
resolvers       > libraries > using builtin lua path 2:
/usr/local/share/lua/5.2/?/init.lua
resolvers       > libraries > using builtin lua path 3:
/usr/local/lib/lua/5.2/?.lua
resolvers       > libraries > using builtin lua path 4:
/usr/local/lib/lua/5.2/?/init.lua
resolvers       > libraries > using builtin lua path 5: ./?.lua
resolvers       > libraries > found, level '1', method 'path
specification', name 'alien'
resolvers       > libraries > locating, level '1', method 'already loaded',
name 'alien_c'
resolvers       > libraries > locating, level '1', method 'preload table',
name 'alien_c'
resolvers       > libraries > locating, level '1', method 'lua variable
format', name 'alien_c'
resolvers       > libraries > lua format, checking 34 paths
resolvers       > libraries > lua format, identifying 'alien_c.lua' using
format 'tex'
resolvers       > libraries > lua format, identifying 'alien_c.lua' using
format 'lua'
resolvers       > libraries > locating, level '1', method 'lib variable
format', name 'alien_c'
resolvers       > libraries > lib format, checking 5 paths
resolvers       > libraries > lib format, identifying 'alien_c.so' using
format 'lib'
resolvers       > libraries > lib format, 'alien_c.so' found on
'/usr/local/lib/lua/5.2/alien_c.so'
resolvers       > libraries > calling loadlib with
'/usr/local/lib/lua/5.2/alien_c.so' with init 'luaopen_alien_c'
resolvers       > libraries > locating, level '1', method 'lua extra list',
name 'alien_c'
resolvers       > libraries > locating, level '1', method 'lib extra list',
name 'alien_c'
resolvers       > libraries > locating, level '1', method 'path
specification', name 'alien_c'
resolvers       > libraries > locating, level '1', method 'cpath
specification', name 'alien_c'
resolvers       > libraries > using builtin lib path 1:
/usr/local/lib/lua/5.2/?.so
resolvers       > libraries > using builtin lib path 2:
/usr/local/lib/lua/5.2/loadall.so
resolvers       > libraries > using builtin lib path 3: ./?.so
! LuaTeX error error loading module 'alien_c' from file
'/usr/local/lib/lua/5.2/alien_c.so':
dlopen(/usr/local/lib/lua/5.2/alien_c.so, 6): Symbol not found:
_luaL_addlstring
  Referenced from: /usr/local/lib/lua/5.2/alien_c.so
  Expected in: flat namespace
 in /usr/local/lib/lua/5.2/alien_c.so
stack traceback:
[C]: in ?
[C]: in function 'cpath specification'
...Context/tex/texmf-context/tex/context/base/l-package.lua:291: in
function '?'
...Context/tex/texmf-context/tex/context/base/l-package.lua:318: in
function <...Context/tex/texmf-context/tex/context/base/l-package.lua:310>
[C]: in function 'savedrequire'
.../Context/tex/texmf-context/tex/context/base/util-lib.lua:243: in
function 'require'
/usr/local/share/lua/5.2/alien.lua:3: in main chunk
[C]: in function 'savedrequire'
.../Context/tex/texmf-context/tex/context/base/util-lib.lua:243: in
function 'require'
[string "\directlua "]:5: in main chunk.

[...]

Thanks in advance

Jorge