Hi!
Thanks for all the helpful suggestions. My first attempt at building
with lua 5.2 is outlined below.
On Sat, 2012-02-11 at 14:57 -0800, Alan W. Irwin wrote:
> Copy the system version of
> FindLua51.cmake (usually found in
> /usr/share/cmake-2.8/Modules) to cmake/modules.
>
> That copy operation assures that the PLplot system will use the
> version of FindLua51.cmake in cmake/modules rather than
> the system one.
>
> Then edit the PLplot version as follows:
>
> Wherever there is a reference to Lua 5.1 put in additional 5.2 choices
> first.
>
> That is:
>
> PATH_SUFFIXES include/lua51 include/lua5.1 include/lua include
>
> ==>
>
> PATH_SUFFIXES include/lua52 include/lua5.2 include/lua51 include/lua5.1
> include/lua include
>
>
> NAMES lua51 lua5.1 lua-5.1 lua
>
> ==>
>
> NAMES lua52 lua5.2 lua-5.2 lua51 lua5.1 lua-5.1 lua
>
> Leave
>
> FIND_PACKAGE_HANDLE_STANDARD_ARGS(Lua51 ...
>
> as is since the 51 there refers to the name of the find module itself
> which for now should continue to be cmake/modules/FindLua51.cmake.
>
In addition to these changes, I also had to do the following to the file
cmake/modules/lua.cmake
--- lua.cmake.orig 2011-10-13 06:13:01.000000000 +0530
+++ lua.cmake 2012-02-13 00:03:36.000000000 +0530
@@ -100,6 +100,8 @@
set(LUA_VERSION_VALID ON)
elseif(${LUA_VERSION} STREQUAL "5.1" AND LUA51_FOUND)
set(LUA_VERSION_VALID ON)
+ elseif(${LUA_VERSION} STREQUAL "5.2" AND LUA51_FOUND)
+ set(LUA_VERSION_VALID ON)
endif(${LUA_VERSION} STREQUAL "5.0" AND LUA50_FOUND)
if(NOT LUA_VERSION_VALID)
---
After these modifications to the source directory, and using a modified
version of swig-2.0.4 with the following patch applied
http://sourceforge.net/tracker/index.php?func=detail&aid=3480366&group_id=1645&atid=301645
I got plplot along with its lua bindings to build successfully with lua
5.2.
> If your PLplot lua-5.2 build goes okay (with -DBUILD_TEST=ON cmake
> option) with the above copy and edit of FindLua51.cmake, then please
> also try run-time testing of our lua bindings using the following
> command:
>
> make test_lua_psc
>
> which runs all our lua examples with -dev psc.
>
> If that works without issues (i.e., the lua results in the examples
> subdirectory of the build tree render okay with a PostScript viewer
> like gv) I would be happy to copy your modified version of
> FindLua51.cmake to PLplot so all PLplot/Lua-5.2 users can benefit.
> __________________________
> Alan W. Irwin
>
Now here is where the problem occurs. When attempting the 'make
test_lua_psc' the first example 'x01' seems to work fine. However, for
'x02',
---
Testing front-end lua
x01
x02
/usr/bin/lua: x02.lua:105: attempt to call field 'mod' (a nil value)
stack traceback:
x02.lua:105: in function 'demo2'
x02.lua:150: in main chunk
[C]: in ?
make[3]: *** [examples/x01lua.psc] Error 1
make[2]: *** [examples/CMakeFiles/test_lua_psc.dir/all] Error 2
make[1]: *** [examples/CMakeFiles/test_lua_psc.dir/rule] Error 2
make: *** [test_lua_psc] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.RoZaxq (%build)
---
... and there the build halts with an error. Any suggestions about this?
As a side-note, I also got plplot's lua bindings building for openSUSE
Factory (latest) by explicitly using lua < 5.2 which is also supported
for the foreseeable future :). It will be good, nontheless, if we fix
issues with 5.2 as well.
Bye and thanks again for all the help.
--
Atri
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