Building LuaJava on OSX Snow Leopard

Question

I am trying to build LuaJava on OSX Snow Leopard and I am getting a linking problem. I have modified the config script for OSX and I have ensured that all of the paths there are correct. I had to change luajava.c(line 2795) to have lua_resume take two LuaStates. This gets it past the building stage but it fails on linking. This is what I get:

export MACOSX_DEPLOYMENT_TARGET=10.6; gcc -dynamiclib -all_load -o libluajava-1.1.jnilib src/c/luajava.o /usr/local/lib/liblua.a
Undefined symbols for architecture x86_64:
  "_luaL_findtable", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1LfindTable in luajava.o
  "_luaL_setn", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1LsetN in luajava.o
  "_luaL_getn", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1LgetN in luajava.o
  "_luaL_typerror", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1Ltyperror in luajava.o
  "_lua_getgccount", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1getGcCount in luajava.o
  "_lua_setfenv", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1setFEnv in luajava.o
  "_lua_getfenv", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1getFEnv in luajava.o
  "_lua_objlen", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1objlen in luajava.o
  "_lua_strlen", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1strlen in luajava.o
  "_lua_lessthan", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1lessthan in luajava.o
  "_lua_equal", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1equal in luajava.o
  "_lua_open", referenced from:
      _Java_org_keplerproject_luajava_LuaState__1open in luajava.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make: *** [libluajava-1.1.jnilib] Error 1

Which I don't understand since I just built lua from soruce for this system. Any ideas?

Answer 1

I am not sure what is wrong with your setup, here what I did to compile LuaJava successfully on Mac OS X Lion:

Download & compile latest Lua 5.1

$ wget http://www.lua.org/ftp/lua-5.1.5.tar.gz
$ tar xzf lua-5.1.5.tar.gz
$ cd lua-5.1.5
$ make -j macosx
$ make install
$ cd ..

Download LuaJava

$ wget https://github.com/jasonsantos/luajava/zipball/master
$ mv master luajava.zip
$ unzip luajava.zip
$ mv jasonsantos-luajava-32a3fcd/ luajava
$ cd luajava

Edit the config file

$ diff -u config.old config
--- config.old  2007-12-27 08:38:30.000000000 +0100
+++ config  2012-03-07 20:11:28.000000000 +0100
@@ -1,11 +1,11 @@
 #############################################################
 #Linux/BSD/Mac
-LUA_DIR= /usr/local/share/lua/5.1.1
+LUA_DIR= /usr/local/share/lua/5.1
 LUA_LIBDIR= /usr/local/lib
-LUA_INCLUDES= /usr/local/include
-JDK= $(JAVA_HOME)
+LUA_INCLUDES= -I/usr/local/include -I/System/Library/Frameworks/JavaVM.framework/Headers
+#JDK= $(JAVA_HOME)
 # For Mac OS, comment the above line and uncomment this one
-#JDK=/Library/Java/Home
+JDK=/Library/Java/Home

 # Full path to Lua static library
 LIB_LUA=$(LUA_LIBDIR)/liblua.a
@@ -18,15 +18,15 @@
 LIB_PREFIX= lib

 #Linux/BSD
-LIB_OPTION= -shared
+#LIB_OPTION= -shared
 #Mac OS
-#LIB_OPTION= -dynamiclib -all_load
+LIB_OPTION= -dynamiclib -all_load

 ## On FreeBSD and Mac OS systems, the following line should be commented
 DLLIB= -ldl

 WARN= -O2 -Wall -fPIC -W -Waggregate-return -Wcast-align -Wmissing-prototypes -Wnested-externs -Wshadow -Wwrite-strings
-INCS= -I$(JDK)/include -I$(JDK)/include/linux -I$(LUA_INCLUDES)
+INCS= -I$(JDK)/include -I$(JDK)/include/linux $(LUA_INCLUDES)
 CFLAGS= $(WARN) $(INCS)

 CC= gcc

Compile LuaJava

$ make
gcc -O2 -Wall -fPIC -W -Waggregate-return -Wcast-align -Wmissing-prototypes -Wnested-externs -Wshadow -Wwrite-strings -I/Library/Java/Home/include -I/Library/Java/Home/include/linux -I/usr/local/include -I/System/Library/Frameworks/JavaVM.framework/Headers   -c -o src/c/luajava.o src/c/luajava.c
... a million warnings later ...
export MACOSX_DEPLOYMENT_TARGET=10.3; gcc -dynamiclib -all_load -o libluajava-1.1.so src/c/luajava.o /usr/local/lib/liblua.a
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Build Complete
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