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POTiny C Compiler: Undefined symbol "main" when main is defined?
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copied!<p>I have a main function, but when tcc goes to link everything together, it says its undefined. Why is this?</p> <p>I'm using a python build script, and arguments are passed as lists:</p> <pre><code>['v:/exe/tcc/tcc.exe', '-odist/***.exe', '-Llib/', '-llua5.1', '-lsoil', '-lSDL', '-lopengl32', 'build/luainterface\\msL.o', 'build/luainterface\\vector.o', 'build/rendering\\renderutil.o', 'build/structures\\crtree.o', 'build/structures\\uniqueid.o', 'build/structures\\vector.o', 'build/world\\blocklib.o', 'build/world\\chunk.o', 'build/world\\world.o', 'build/main.o'] </code></pre> <p>The output is simply:</p> <pre><code>tcc: undefined symbol 'main' </code></pre> <p>My main function is defined in the file main.c (and doesn't have a header), with a couple of static functions. Main function:</p> <pre><code>int main(int argc, char *argv[]) { SDL_Surface* screen = render_initialize(1024,768); lua_State* L = luaL_newstate(); //lua_atpanic(L,&Lpanic); msL_registerState(L); msL_openAllLibs(L); int fail = luaL_dofile(L,"lua/main.luac"); if(fail) { fprintf(stderr, "Lua error: %s\n", lua_tostring(L,-1)); doexit(1); } lua_getfield(L,LUA_GLOBALSINDEX,"draw"); if(!lua_isfunction(L,-1)) { lua_pop(L,1); fprintf(stderr, "No draw function defined in global scope\n"); doexit(1); } lua_setfield(L,LUA_REGISTRYINDEX,"msL_drawfunction"); while(1) { lua_getfield(L,LUA_REGISTRYINDEX,"msL_drawfunction"); assert(lua_isfunction(L,-1)); int err = lua_pcall(L,0,0,0); if(err) { fprintf(stderr,"Lua error: "); switch(err) { case LUA_ERRRUN: fprintf(stderr,"%s",lua_tostring(L,-1)); break; case LUA_ERRMEM: fprintf(stderr,"out of memory"); break; default: fprintf(stderr,"unknown error"); } fprintf(stderr,"\n"); doexit(1); } render_flipbuffers(screen); } doexit(0); } </code></pre> <p><strong>EDIT:</strong> I ran the code through tcc with preprocessing only. Apparently the main function is being renamed to SDL_main, through some macro in SDL.</p>

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