Requiring the library from Lua results in error ("undefined symbol: lua_tointeger") about lua-mongo HOT 12 CLOSED

It works!

Thanks so much for your help!

from lua-mongo.

Note : the compiler gave me some trouble (I had to specify that I was using Lua 5.2, and it said : -- Using Lua '5.2', version 5.1.5), not sure if it's related.

This is probably related. Your mongo.so is probably built against Lua 5.1 and not Lua 5.2. You can check this by issuing a command:

ldd /usr/local/lib/lua/5.2/mongo.so

Also, why use CMake? Try installing via LuaRocks.

from lua-mongo.

I'm not sure which library is Lua, so here's the whole output :

	linux-vdso.so.1 (0x00007ffe94eee000)
	libmongoc-1.0.so.0 => /usr/local/lib/libmongoc-1.0.so.0 (0x00007f3576947000)
	libbson-1.0.so.0 => /usr/local/lib/libbson-1.0.so.0 (0x00007f3576908000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3576717000)
	libsasl2.so.2 => /lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007f35766fa000)
	libssl.so.1.1 => /lib/x86_64-linux-gnu/libssl.so.1.1 (0x00007f3576668000)
	libcrypto.so.1.1 => /lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007f3576393000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3576386000)
	libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f357636b000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3576348000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f3576a2d000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3576342000)

I tried building with LuaRocks, but it couldn't detect libbson :

$ sudo luarocks make
[sudo] password for user: 

Error: Could not find library file for LIBBSON
  No file bson-1.0 in /usr/local/lib
  No file bson-1.0 in /usr/local/lib/x86_64-linux-gnu
  No file bson-1.0 in /usr/lib
  No file bson-1.0 in /usr/lib/x86_64-linux-gnu
You may have to install LIBBSON in your system and/or pass LIBBSON_DIR or LIBBSON_LIBDIR to the luarocks command.
Example: luarocks install lua-mongo LIBBSON_DIR=/usr/local

Libbson was installed as a dependency when I installed the Mongo C Driver, but I can't seem to find any file names "bson-1.0" anywhere in any related folder.

Now that I notice it, it says "libbson-1.0.so.0" and the dependency asks for 1.16+. Am I looking at the correct place for the version number?

from lua-mongo.

Alright, I think I got it :

$ apt-cache show libbson-1.0
Package: libbson-1.0-0
Architecture: amd64
Version: 1.15.0-1
Priority: optional
Section: universe/libs
Source: mongo-c-driver
Origin: Ubuntu

"Version: 1.15.0-1", literally one below.

Do you know where I can find an up-to-date version of libbson? The Mongo C Driver site only tells me to download it from apt...

from lua-mongo.

from lua-mongo.

I've played a bit with the paths and found that both are in /usr/local.

Now I get a compilation error :

$ sudo luarocks install lua-mongo LIBBSON_DIR=/usr/local/ LIBMONGOC_DIR=/usr/local/
Installing https://luarocks.org/lua-mongo-1.2.1-1.src.rock
gcc -O2 -fPIC -I/usr/include/lua5.2 -c src/bson.c -o src/bson.o -I/usr/local/include/libmongoc-1.0 -I/usr/local/include/libbson-1.0
In file included from src/bson.c:23:
src/common.h:25:10: fatal error: lauxlib.h: No such file or directory
   25 | #include <lauxlib.h>
      |          ^~~~~~~~~~~
compilation terminated.

Error: Build error: Failed compiling object src/bson.o

Any ideas?

from lua-mongo.

Is there lauxlib.h in /usr/include/lua5.2 ?

from lua-mongo.

I think I found something...

/usr/include/lua5.1/lauxlib.h

Yes, Lua 5.1... No idea why, because running lua5.2 works, but running Lua5.1 only prompts me to install it through apt.

I manually renamed the folder to lua5.2 (I know I shouldn't do this but I'm investigating) and it compiled properly.

I'll keep following the installation steps and I'll come back with news ASAP. Thanks for putting me on the right road!

from lua-mongo.

Yes, it looks more and more that you have Lua 5.1 vs 5.2 messed up in the system. You need to untangle that first. Otherwise, things will go wonky.

from lua-mongo.

It also could be that you have Lua 5.1 headers installed but not for Lua 5.2. Try installing a lua5.2-devel package or whatever is relevant for your system. Note that you always need Lua headers to build modules written in C.

from lua-mongo.

It seems to work!

I did sudo apt-get install lua5.2-dev, recompiled the module with LuaRocks, and the test script isn't printing any error anymore!

I'll try editing a collection to see if it really works :)

from lua-mongo.

Great! I’m closing this then....

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