How to build C program with Lua

c, lua

Solution

It's `luaL_newstate`, not `luaL_newState`.

You also need `-llua -lm` at the end of the command line.

Problem

test.c : ``` #include "lua.h" #include "lauxlib.h" #include "lualib.h" int main(){ lua_State *L = luaL_newState(); /* opens Lua */ luaL_openlibs(L); /* opens the standard libraries */ luaL_dofile(L,"test.lua"); /* runs Lua scrip */ lua_close(L); return 0; } ``` build: ``` gcc -o test test.c -I/usr/local/Cellar/lua/5.1.5/include ``` then i got error: ``` test.c:7:18: warning: implicit declaration of function 'luaL_newState' is invalid in C99 [-Wimplicit-function-declaration] lua_State *L = luaL_newState(); /* opens Lua */ ^ test.c:7:14: warning: incompatible integer to pointer conversion initializing 'lua_State *' (aka 'struct lua_State *') with an expression of type 'int' [-Wint-conversion] lua_State *L = luaL_newState(); /* opens Lua */ ^ ~~~~~~~~~~~~~~~ 2 warnings generated. Undefined symbols for architecture x86_64: "_luaL_loadfile", referenced from: _main in test-dxPwkn.o "_luaL_newState", referenced from: _main in test-dxPwkn.o "_luaL_openlibs", referenced from: _main in test-dxPwkn.o "_lua_close", referenced from: _main in test-dxPwkn.o "_lua_pcall", referenced from: _main in test-dxPwkn.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) ``` I installed Lua via Homebrew: ``` ls /usr/local/Cellar/lua/5.1.5/include lauxlib.h lua.h lua.hpp luaconf.h lualib.h ``` Anyone knows how to solve this error? Thanks.

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