WorldForge Community

I have built ember on both Fedora 7 or 8 (I don't remember which) and on an older Ubuntu. I think it was equally difficult on both. I think ensuring you only have lua 5.0 installed, and then hacking it so that CEGUI detects it and will compile is the best and easiest way to get things working.

The most important factor is probably picking a distribution where you can get decent 3D drivers working for your hardware. To get decent shaders and performance you are almost certainly going to have to use proprietary binary drivers. I think Ubuntu makes this relatively easy, though you can install binary drivers on Fedora if you know what you are doing.

I have found that all required stuff works fine in Gentoo, unless Eris and libwfut, which havent been added to portage yet. In amd64 arch, some deps arent included, like tolua++, but you can force them.

If it can't find CEGUI-OGRE it means that you're missing the Ogre adapter for CEGUI. This is installed when you build OGRE after you've built CEGUI. I.e. build CEGUI first, then Ogre. Did you follow this guide?

If CEGUI can't find Lua that's a showstopper. That's really strange; make sure that you have lib64lua5.0-devel installed (just do "urpmi lib64lua5.0-devel" as root).

You shouldn't need to apply any patches on Mandriva to make it catch lua. Could you check your cegui config.log to see where it tries to find lua and fails?

Ok, it seems that lib64lua5.0-devel doesn't contain any lua.pc file, whereas lib64lua5.1-devel does. I use the latter, but that requires patching CEGUI to make it work with 5.1. I assumed that the 5.0 rpm contained a lua.pc file just like 5.1, but apparently not.

You can either go with 5.1 and patch CEGUI, or you could get lua and compile and install it yourself. It's available from http://www.lua.org/ftp/lua-5.0.3.tar.gz

erik, the lua-5.0.3 dont include lua.pc. :(

Can you help me to patch CEGUI to use lua 5.1 ?

thanks

Thank you erik for that.

After patching got these errors. Before not appeared.


./configure --without-xerces-c --with-default-xml-parser=TinyXMLParser --enable-toluacegui
********************************************************************************
* Crazy Eddie's GUI System - Configuration Results Summary
********************************************************************************
* Library Release Version: 0.5.0
*
* Code options:
* Building CEGUI in debug mode: no
*
* Renderer Modules:
* Building OpenGL Renderer: yes
* Building Irrlict Renderer: no
*
* Image Loading Codec Modules (currently for OpenGL Renderer only):
* Building Corona Image Codec: no
* Building DevIL Image Codec: yes
* Building FreeImage Image Codec: yes
* Building SILLY Image Codec: no
* Building TGA Image Codec: yes
*
* Default Image Codec will be: DevILImageCodec
*
* XML Parser Modules:
* Building TinyXMLParser: yes
* Building ExpatParser: yes
* Building LibXMLParser: yes
* Building XercesParser: no
*
* Default XML Parser is: TinyXMLParser
*
* Scripting:
* Building Lua scripting module: yes
* Building tolua++cegui generator: yes
*
* Samples Framework:
* Building Samples: yes
* GTK2 based dialog for renderer selection: no
* OpenGL Renderer available in samples: yes
* Irrlict Renderer available in samples: no
* Ogre3D Renderer available in samples: no
********************************************************************************


make

.
.
.
...>
gcc -g -O2 -o .libs/tolua++cegui tolua.o toluabind.o -L/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs /home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs/libCEGUItoluapp.so -L/usr/lib -llua -lm -lfreeimage -lpthread -ldl -Wl,--rpath -Wl,/usr/local/lib
/usr/bin/ld: skipping incompatible /usr/lib/libgcc_s.so when searching for -lgcc_s
/usr/bin/ld: skipping incompatible /usr/lib/libgcc_s.so when searching for -lgcc_s
tolua.o: In function `main':
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:89: undefined reference to `luaopen_base'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:90: undefined reference to `luaopen_io'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:91: undefined reference to `luaopen_string'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:92: undefined reference to `luaopen_table'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:93: undefined reference to `luaopen_math'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:94: undefined reference to `luaopen_debug'
tolua.o: In function `add_extra':
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin/tolua.c:69: undefined reference to `luaL_getn'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs/libCEGUItoluapp.so: undefined reference to `lua_dobuffer'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs/libCEGUItoluapp.so: undefined reference to `luaL_newmetatable'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs/libCEGUItoluapp.so: undefined reference to `luaL_getmetatable'
/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++/.libs/libCEGUItoluapp.so: undefined reference to `luaL_error'
collect2: ld returned 1 exit status
make[3]: *** [tolua++cegui] Error 1
make[3]: Leaving directory `/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua/tolua++bin'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules/CEGUILua'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/admin/tarballs/CEGUI-0.5.0/ScriptingModules'
make: *** [all-recursive] Error 1





Apparently only demos, right?
I worry?

Thanks

I have removed "--enable-toluacegui" in the "./configure".
The error continues being the same.

thanks

ok, I have thesse:

rpm -qa | grep -i lua

1) lib64lua5.0-5.0.3-4mdv2008.0
2) lib64lua-devel-5.1.2-4mdv2008.0
3) lua-5.1.2-4mdv2008.0 ---------- 32bits ?
4) lib64lua5.1-5.1.2-4mdv2008.0

and removed (1) and (3). Now, I have:

lib64lua-devel-5.1.2-4mdv2008.0
lib64lua5.1-5.1.2-4mdv2008.0

ok, ldflags, configure, and the same error.

but, under /usr/lib I have:

/usr/lib/liblua.a
/usr/lib/liblua.so
/usr/lib/liblua.so.5.0
/usr/lib/liblua.so.5.1
/usr/lib/liblualib.a
/usr/lib/liblualib.so
/usr/lib/liblualib.so.5.0
/usr/lib/libtolua++-5.1.so
/usr/lib/libtolua.a
/usr/lib/lua
/usr/lib/lua/5.0

is necesary that I remove them manualy ?

Thanks

ok, moved files, restarting all.

The config.log from CEGUI: cat config.log | grep -i lua

configure:26697: checking for Lua
configure:26705: $PKG_CONFIG --exists --print-errors "lua >= 5.0 lua < 5.1"
Requested 'lua < 5.1' but version of Lua is 5.1.2
configure:26723: $PKG_CONFIG --exists --print-errors "lua >= 5.0 lua < 5.1"
Requested 'lua < 5.1' but version of Lua is 5.1.2
Requested 'lua < 5.1' but version of Lua is 5.1.2
configure:26790: Building of Lua scripting module is disabled
configure:26798: Building of tolua++cegui generator tool is disabled.
config.status:782: creating ScriptingModules/CEGUILua/LuaScriptModule/Makefile
config.status:782: creating ScriptingModules/CEGUILua/LuaScriptModule/include/Makefile
config.status:782: creating ScriptingModules/CEGUILua/LuaScriptModule/package/Makefile
config.status:782: creating ScriptingModules/CEGUILua/LuaScriptModule/src/Makefile
config.status:782: creating ScriptingModules/CEGUILua/Makefile
config.status:782: creating ScriptingModules/CEGUILua/tolua++/Makefile
config.status:782: creating ScriptingModules/CEGUILua/tolua++bin/Makefile
ac_cv_env_Lua_CFLAGS_set=
ac_cv_env_Lua_CFLAGS_value=
ac_cv_env_Lua_LIBS_set=
ac_cv_env_Lua_LIBS_value=
CEGUI_BUILD_LUA_MODULE_FALSE=''
CEGUI_BUILD_LUA_MODULE_TRUE='#'
CEGUI_BUILD_TOLUACEGUI_FALSE=''
CEGUI_BUILD_TOLUACEGUI_TRUE='#'
Lua_CFLAGS=''
Lua_LIBS=''


I have applyed the patch before configure. :( . no Lua ?

another patch ?

Thanks

Ok, this seems really strange. It's hard for me to say what's wrong, but something might be broken with your source tree. Could you try unpacking the source tarball to a completely clean directory, running the patch and then configure?

It might be that pkg-config doesn't pick up the lua.pc file correctly. What's your output when entering "pkg-config --libs lua"?

Ok, you don't need to build the CEGUI samples. Add --disable-samples to configure.
I guess it thinks that Ogre is installed while it perhaps isn't completely.

You can ignore those warnings. They appear because you use a newer version of gcc which doesn't like when it has to automatically convert "char*" to const char*". But they are not fatal or anything. Look instead for something that starts with "error".

Ok, strange. Are you sure those are the first errors you get?
That file includes tolua++.h, which in turns includes lua.h and lauxlib.h. Depending on the version of lua LUA_NOREF is defined in either one of those files. So there should probably be an earlier error message about the system not being able to find one of the .h files involved.

Make doesn't output a log file by default, but you can use bash error redirection like this

That should write all error messages to the file error.log.

Ok, this is all caused by the CEGUILua not building as it should. You've patched the source to be able to handle both lua 5.0 and lua 5.1, but I'm guessing that you didn't rerun autogen.sh and configure afterwards. Unless you do that the build system can't know that it should use 5.1 and instead tries to use the old 5.0 code.

So, in cegui rerun ./autogen.sh and then configure

Ah, yep.
Issue these commands instead:

The error regarding IL seems like it's caused by you not having the DevIL developer package installed. Make sure that the package lib64devil1-devel is installed.

The reason that you can't build tolua is that the patch didn't provide support for that part, only the scripting module. But what are the errors you get when you disable it? Could you post some of those?

Yep, those are all warnings. They can be ignored. Look instead for errors. Try


The reason that you don't see that when you disable the tolua binary is that the whole compilation process is aborted when it can't compile the tolua binary, which makes it never even getting to the lua sciprting module.

That is strange. That's defined in lauxlib.h for 5.1. Could you execute the following, which looks for that define in the system installed headers

and post the result?

It sounds as if perhaps you have old Lua 5.0 headers still in your system. Could you search for lua.h and lauxlib.h?
Do:

If there are any old versions still in your path. these might be picked up by mistake and causing these problems.[/code]

Ah, that's probably it. Remove /usr/local/include/lauxlib.h .

In lua 5.0 LUA_NOREF is defined in lua.h, while in 5.1 it's defined in lauxlib.h.
So what's happening here is that the compiler picks up /usr/include/lua.h, which is from lua 5.1 and thus doesn't contain the definition for LUA_NOREF, and then picks up /usr/local/include/lauxlib.h which is from lua 5.0 and thus also doesn't contain LUA_NOREF.
And the result is that LUA_NOREF stays undefined.

Alright! You can ignore all warnings, they won't make the compilation fail.

Alright, you've gotten it to compile and work! Regarding CEGUI, the CEGUI-OGRE bindings are in OGRE, so you don't need to recompile CEGUI. You can also disable the CEGUI samples if you run into problems in them. I've updated the wiki about this: http://wiki.worldforge.org/wiki/Compiling_Ember

Regarding the Ember problem, could you post your ~/.ember/ember.log file? Are you running Ember 0.5.1 or from cvs?