disabling the discovery of SDL13+ on desktop. SDL13 has become SDL2 with a completely different ABI and will require a new FindSDL2 module for Cmake to be found; for current sdl development installations, hedgewars will either use the compatibility layer (present in sdl1.3 but not in sdl2) or just fail to build (in case sdl2 is installed but sdl1.2.* is not). whew
/*
** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
#ifndef ldo_h
#define ldo_h
#include "lobject.h"
#include "lstate.h"
#include "lzio.h"
#define luaD_checkstack(L,n) \
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
luaD_growstack(L, n); \
else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
#define restorestack(L,n) ((TValue *)((char *)L->stack + (n)))
#define saveci(L,p) ((char *)(p) - (char *)L->base_ci)
#define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n)))
/* results from luaD_precall */
#define PCRLUA 0 /* initiated a call to a Lua function */
#define PCRC 1 /* did a call to a C function */
#define PCRYIELD 2 /* C funtion yielded */
/* type of protected functions, to be ran by `runprotected' */
typedef void (*Pfunc) (lua_State *L, void *ud);
LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t oldtop, ptrdiff_t ef);
LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
#endif