/src/middleware/lua/luaconf.h
C++ Header | 763 lines | 697 code | 21 blank | 45 comment | 1 complexity | 6455e44050af70fb1e62be6bf312a20f MD5 | raw file
1/* 2** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $ 3** Configuration file for Lua 4** See Copyright Notice in lua.h 5*/ 6 7 8#ifndef lconfig_h 9#define lconfig_h 10 11#include <limits.h> 12#include <stddef.h> 13 14 15/* 16** ================================================================== 17** Search for "@@" to find all configurable definitions. 18** =================================================================== 19*/ 20 21 22/* 23@@ LUA_ANSI controls the use of non-ansi features. 24** CHANGE it (define it) if you want Lua to avoid the use of any 25** non-ansi feature or library. 26*/ 27#if defined(__STRICT_ANSI__) 28#define LUA_ANSI 29#endif 30 31 32#if !defined(LUA_ANSI) && defined(_WIN32) 33#define LUA_WIN 34#endif 35 36#if defined(LUA_USE_LINUX) 37#define LUA_USE_POSIX 38#define LUA_USE_DLOPEN /* needs an extra library: -ldl */ 39#define LUA_USE_READLINE /* needs some extra libraries */ 40#endif 41 42#if defined(LUA_USE_MACOSX) 43#define LUA_USE_POSIX 44#define LUA_DL_DYLD /* does not need extra library */ 45#endif 46 47 48 49/* 50@@ LUA_USE_POSIX includes all functionallity listed as X/Open System 51@* Interfaces Extension (XSI). 52** CHANGE it (define it) if your system is XSI compatible. 53*/ 54#if defined(LUA_USE_POSIX) 55#define LUA_USE_MKSTEMP 56#define LUA_USE_ISATTY 57#define LUA_USE_POPEN 58#define LUA_USE_ULONGJMP 59#endif 60 61 62/* 63@@ LUA_PATH and LUA_CPATH are the names of the environment variables that 64@* Lua check to set its paths. 65@@ LUA_INIT is the name of the environment variable that Lua 66@* checks for initialization code. 67** CHANGE them if you want different names. 68*/ 69#define LUA_PATH "LUA_PATH" 70#define LUA_CPATH "LUA_CPATH" 71#define LUA_INIT "LUA_INIT" 72 73 74/* 75@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for 76@* Lua libraries. 77@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for 78@* C libraries. 79** CHANGE them if your machine has a non-conventional directory 80** hierarchy or if you want to install your libraries in 81** non-conventional directories. 82*/ 83#if defined(_WIN32) 84/* 85** In Windows, any exclamation mark ('!') in the path is replaced by the 86** path of the directory of the executable file of the current process. 87*/ 88#define LUA_LDIR "!\\lua\\" 89#define LUA_CDIR "!\\" 90#define LUA_PATH_DEFAULT \ 91 ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ 92 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua" 93#define LUA_CPATH_DEFAULT \ 94 ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll" 95 96#else 97#define LUA_ROOT "/usr/local/" 98#define LUA_LDIR LUA_ROOT "share/lua/5.1/" 99#define LUA_CDIR LUA_ROOT "lib/lua/5.1/" 100#define LUA_PATH_DEFAULT \ 101 "./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 102 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua" 103#define LUA_CPATH_DEFAULT \ 104 "./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so" 105#endif 106 107 108/* 109@@ LUA_DIRSEP is the directory separator (for submodules). 110** CHANGE it if your machine does not use "/" as the directory separator 111** and is not Windows. (On Windows Lua automatically uses "\".) 112*/ 113#if defined(_WIN32) 114#define LUA_DIRSEP "\\" 115#else 116#define LUA_DIRSEP "/" 117#endif 118 119 120/* 121@@ LUA_PATHSEP is the character that separates templates in a path. 122@@ LUA_PATH_MARK is the string that marks the substitution points in a 123@* template. 124@@ LUA_EXECDIR in a Windows path is replaced by the executable's 125@* directory. 126@@ LUA_IGMARK is a mark to ignore all before it when bulding the 127@* luaopen_ function name. 128** CHANGE them if for some reason your system cannot use those 129** characters. (E.g., if one of those characters is a common character 130** in file/directory names.) Probably you do not need to change them. 131*/ 132#define LUA_PATHSEP ";" 133#define LUA_PATH_MARK "?" 134#define LUA_EXECDIR "!" 135#define LUA_IGMARK "-" 136 137 138/* 139@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. 140** CHANGE that if ptrdiff_t is not adequate on your machine. (On most 141** machines, ptrdiff_t gives a good choice between int or long.) 142*/ 143#define LUA_INTEGER ptrdiff_t 144 145 146/* 147@@ LUA_API is a mark for all core API functions. 148@@ LUALIB_API is a mark for all standard library functions. 149** CHANGE them if you need to define those functions in some special way. 150** For instance, if you want to create one Windows DLL with the core and 151** the libraries, you may want to use the following definition (define 152** LUA_BUILD_AS_DLL to get it). 153*/ 154#if defined(LUA_BUILD_AS_DLL) 155 156#if defined(LUA_CORE) || defined(LUA_LIB) 157#define LUA_API __declspec(dllexport) 158#else 159#define LUA_API __declspec(dllimport) 160#endif 161 162#else 163 164#define LUA_API extern 165 166#endif 167 168/* more often than not the libs go together with the core */ 169#define LUALIB_API LUA_API 170 171 172/* 173@@ LUAI_FUNC is a mark for all extern functions that are not to be 174@* exported to outside modules. 175@@ LUAI_DATA is a mark for all extern (const) variables that are not to 176@* be exported to outside modules. 177** CHANGE them if you need to mark them in some special way. Elf/gcc 178** (versions 3.2 and later) mark them as "hidden" to optimize access 179** when Lua is compiled as a shared library. 180*/ 181#if defined(luaall_c) 182#define LUAI_FUNC static 183#define LUAI_DATA /* empty */ 184 185#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ 186 defined(__ELF__) 187#define LUAI_FUNC __attribute__((visibility("hidden"))) extern 188#define LUAI_DATA LUAI_FUNC 189 190#else 191#define LUAI_FUNC extern 192#define LUAI_DATA extern 193#endif 194 195 196 197/* 198@@ LUA_QL describes how error messages quote program elements. 199** CHANGE it if you want a different appearance. 200*/ 201#define LUA_QL(x) "'" x "'" 202#define LUA_QS LUA_QL("%s") 203 204 205/* 206@@ LUA_IDSIZE gives the maximum size for the description of the source 207@* of a function in debug information. 208** CHANGE it if you want a different size. 209*/ 210#define LUA_IDSIZE 60 211 212 213/* 214** {================================================================== 215** Stand-alone configuration 216** =================================================================== 217*/ 218 219#if defined(lua_c) || defined(luaall_c) 220 221/* 222@@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that 223@* is, whether we're running lua interactively). 224** CHANGE it if you have a better definition for non-POSIX/non-Windows 225** systems. 226*/ 227#if defined(LUA_USE_ISATTY) 228#include <unistd.h> 229#define lua_stdin_is_tty() isatty(0) 230#elif defined(LUA_WIN) 231#include <io.h> 232#include <stdio.h> 233#define lua_stdin_is_tty() _isatty(_fileno(stdin)) 234#else 235#define lua_stdin_is_tty() 1 /* assume stdin is a tty */ 236#endif 237 238 239/* 240@@ LUA_PROMPT is the default prompt used by stand-alone Lua. 241@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua. 242** CHANGE them if you want different prompts. (You can also change the 243** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.) 244*/ 245#define LUA_PROMPT "> " 246#define LUA_PROMPT2 ">> " 247 248 249/* 250@@ LUA_PROGNAME is the default name for the stand-alone Lua program. 251** CHANGE it if your stand-alone interpreter has a different name and 252** your system is not able to detect that name automatically. 253*/ 254#define LUA_PROGNAME "lua" 255 256 257/* 258@@ LUA_MAXINPUT is the maximum length for an input line in the 259@* stand-alone interpreter. 260** CHANGE it if you need longer lines. 261*/ 262#define LUA_MAXINPUT 512 263 264 265/* 266@@ lua_readline defines how to show a prompt and then read a line from 267@* the standard input. 268@@ lua_saveline defines how to "save" a read line in a "history". 269@@ lua_freeline defines how to free a line read by lua_readline. 270** CHANGE them if you want to improve this functionality (e.g., by using 271** GNU readline and history facilities). 272*/ 273#if defined(LUA_USE_READLINE) 274#include <stdio.h> 275#include <readline/readline.h> 276#include <readline/history.h> 277#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL) 278#define lua_saveline(L,idx) \ 279 if (lua_strlen(L,idx) > 0) /* non-empty line? */ \ 280 add_history(lua_tostring(L, idx)); /* add it to history */ 281#define lua_freeline(L,b) ((void)L, free(b)) 282#else 283#define lua_readline(L,b,p) \ 284 ((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \ 285 fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */ 286#define lua_saveline(L,idx) { (void)L; (void)idx; } 287#define lua_freeline(L,b) { (void)L; (void)b; } 288#endif 289 290#endif 291 292/* }================================================================== */ 293 294 295/* 296@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles 297@* as a percentage. 298** CHANGE it if you want the GC to run faster or slower (higher values 299** mean larger pauses which mean slower collection.) You can also change 300** this value dynamically. 301*/ 302#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */ 303 304 305/* 306@@ LUAI_GCMUL defines the default speed of garbage collection relative to 307@* memory allocation as a percentage. 308** CHANGE it if you want to change the granularity of the garbage 309** collection. (Higher values mean coarser collections. 0 represents 310** infinity, where each step performs a full collection.) You can also 311** change this value dynamically. 312*/ 313#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */ 314 315 316 317/* 318@@ LUA_COMPAT_GETN controls compatibility with old getn behavior. 319** CHANGE it (define it) if you want exact compatibility with the 320** behavior of setn/getn in Lua 5.0. 321*/ 322#undef LUA_COMPAT_GETN 323 324/* 325@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib. 326** CHANGE it to undefined as soon as you do not need a global 'loadlib' 327** function (the function is still available as 'package.loadlib'). 328*/ 329#undef LUA_COMPAT_LOADLIB 330 331/* 332@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature. 333** CHANGE it to undefined as soon as your programs use only '...' to 334** access vararg parameters (instead of the old 'arg' table). 335*/ 336#define LUA_COMPAT_VARARG 337 338/* 339@@ LUA_COMPAT_MOD controls compatibility with old math.mod function. 340** CHANGE it to undefined as soon as your programs use 'math.fmod' or 341** the new '%' operator instead of 'math.mod'. 342*/ 343#define LUA_COMPAT_MOD 344 345/* 346@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting 347@* facility. 348** CHANGE it to 2 if you want the old behaviour, or undefine it to turn 349** off the advisory error when nesting [[...]]. 350*/ 351#define LUA_COMPAT_LSTR 1 352 353/* 354@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name. 355** CHANGE it to undefined as soon as you rename 'string.gfind' to 356** 'string.gmatch'. 357*/ 358#define LUA_COMPAT_GFIND 359 360/* 361@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib' 362@* behavior. 363** CHANGE it to undefined as soon as you replace to 'luaL_register' 364** your uses of 'luaL_openlib' 365*/ 366#define LUA_COMPAT_OPENLIB 367 368 369 370/* 371@@ luai_apicheck is the assert macro used by the Lua-C API. 372** CHANGE luai_apicheck if you want Lua to perform some checks in the 373** parameters it gets from API calls. This may slow down the interpreter 374** a bit, but may be quite useful when debugging C code that interfaces 375** with Lua. A useful redefinition is to use assert.h. 376*/ 377#if defined(LUA_USE_APICHECK) 378#include <assert.h> 379#define luai_apicheck(L,o) { (void)L; assert(o); } 380#else 381#define luai_apicheck(L,o) { (void)L; } 382#endif 383 384 385/* 386@@ LUAI_BITSINT defines the number of bits in an int. 387** CHANGE here if Lua cannot automatically detect the number of bits of 388** your machine. Probably you do not need to change this. 389*/ 390/* avoid overflows in comparison */ 391#if INT_MAX-20 < 32760 392#define LUAI_BITSINT 16 393#elif INT_MAX > 2147483640L 394/* int has at least 32 bits */ 395#define LUAI_BITSINT 32 396#else 397#error "you must define LUA_BITSINT with number of bits in an integer" 398#endif 399 400 401/* 402@@ LUAI_UINT32 is an unsigned integer with at least 32 bits. 403@@ LUAI_INT32 is an signed integer with at least 32 bits. 404@@ LUAI_UMEM is an unsigned integer big enough to count the total 405@* memory used by Lua. 406@@ LUAI_MEM is a signed integer big enough to count the total memory 407@* used by Lua. 408** CHANGE here if for some weird reason the default definitions are not 409** good enough for your machine. (The definitions in the 'else' 410** part always works, but may waste space on machines with 64-bit 411** longs.) Probably you do not need to change this. 412*/ 413#if LUAI_BITSINT >= 32 414#define LUAI_UINT32 unsigned int 415#define LUAI_INT32 int 416#define LUAI_MAXINT32 INT_MAX 417#define LUAI_UMEM size_t 418#define LUAI_MEM ptrdiff_t 419#else 420/* 16-bit ints */ 421#define LUAI_UINT32 unsigned long 422#define LUAI_INT32 long 423#define LUAI_MAXINT32 LONG_MAX 424#define LUAI_UMEM unsigned long 425#define LUAI_MEM long 426#endif 427 428 429/* 430@@ LUAI_MAXCALLS limits the number of nested calls. 431** CHANGE it if you need really deep recursive calls. This limit is 432** arbitrary; its only purpose is to stop infinite recursion before 433** exhausting memory. 434*/ 435#define LUAI_MAXCALLS 20000 436 437 438/* 439@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function 440@* can use. 441** CHANGE it if you need lots of (Lua) stack space for your C 442** functions. This limit is arbitrary; its only purpose is to stop C 443** functions to consume unlimited stack space. (must be smaller than 444** -LUA_REGISTRYINDEX) 445*/ 446#define LUAI_MAXCSTACK 8000 447 448 449 450/* 451** {================================================================== 452** CHANGE (to smaller values) the following definitions if your system 453** has a small C stack. (Or you may want to change them to larger 454** values if your system has a large C stack and these limits are 455** too rigid for you.) Some of these constants control the size of 456** stack-allocated arrays used by the compiler or the interpreter, while 457** others limit the maximum number of recursive calls that the compiler 458** or the interpreter can perform. Values too large may cause a C stack 459** overflow for some forms of deep constructs. 460** =================================================================== 461*/ 462 463 464/* 465@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and 466@* syntactical nested non-terminals in a program. 467*/ 468#define LUAI_MAXCCALLS 200 469 470 471/* 472@@ LUAI_MAXVARS is the maximum number of local variables per function 473@* (must be smaller than 250). 474*/ 475#define LUAI_MAXVARS 200 476 477 478/* 479@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function 480@* (must be smaller than 250). 481*/ 482#define LUAI_MAXUPVALUES 60 483 484 485/* 486@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 487*/ 488#define LUAL_BUFFERSIZE BUFSIZ 489 490/* }================================================================== */ 491 492 493 494 495/* 496** {================================================================== 497@@ LUA_NUMBER is the type of numbers in Lua. 498** CHANGE the following definitions only if you want to build Lua 499** with a number type different from double. You may also need to 500** change lua_number2int & lua_number2integer. 501** =================================================================== 502*/ 503 504#define LUA_NUMBER_DOUBLE 505#define LUA_NUMBER double 506 507/* 508@@ LUAI_UACNUMBER is the result of an 'usual argument conversion' 509@* over a number. 510*/ 511#define LUAI_UACNUMBER double 512 513 514/* 515@@ LUA_NUMBER_SCAN is the format for reading numbers. 516@@ LUA_NUMBER_FMT is the format for writing numbers. 517@@ lua_number2str converts a number to a string. 518@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. 519@@ lua_str2number converts a string to a number. 520*/ 521#define LUA_NUMBER_SCAN "%lf" 522#define LUA_NUMBER_FMT "%.14g" 523#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) 524#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ 525#define lua_str2number(s,p) strtod((s), (p)) 526 527 528/* 529@@ The luai_num* macros define the primitive operations over numbers. 530*/ 531#if defined(LUA_CORE) 532#include <math.h> 533#define luai_numadd(a,b) ((a)+(b)) 534#define luai_numsub(a,b) ((a)-(b)) 535#define luai_nummul(a,b) ((a)*(b)) 536#define luai_numdiv(a,b) ((a)/(b)) 537#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b)) 538#define luai_numpow(a,b) (pow(a,b)) 539#define luai_numunm(a) (-(a)) 540#define luai_numeq(a,b) ((a)==(b)) 541#define luai_numlt(a,b) ((a)<(b)) 542#define luai_numle(a,b) ((a)<=(b)) 543#define luai_numisnan(a) (!luai_numeq((a), (a))) 544#endif 545 546 547/* 548@@ lua_number2int is a macro to convert lua_Number to int. 549@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. 550** CHANGE them if you know a faster way to convert a lua_Number to 551** int (with any rounding method and without throwing errors) in your 552** system. In Pentium machines, a naive typecast from double to int 553** in C is extremely slow, so any alternative is worth trying. 554*/ 555 556/* On a Pentium, resort to a trick */ 557#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \ 558 (defined(__i386) || defined (_M_IX86) || defined(__i386__)) 559 560/* On a Microsoft compiler, use assembler */ 561#if defined(_MSC_VER) 562 563#define lua_number2int(i,d) i = (int)d 564#define lua_number2integer(i,n) lua_number2int(i, n) 565 566/* the next trick should work on any Pentium, but sometimes clashes 567 with a DirectX idiosyncrasy */ 568#else 569 570union luai_Cast { double l_d; long l_l; }; 571#define lua_number2int(i,d) \ 572 { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } 573#define lua_number2integer(i,n) lua_number2int(i, n) 574 575#endif 576 577 578/* this option always works, but may be slow */ 579#else 580#define lua_number2int(i,d) ((i)=(int)(d)) 581#define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) 582 583#endif 584 585/* }================================================================== */ 586 587 588/* 589@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. 590** CHANGE it if your system requires alignments larger than double. (For 591** instance, if your system supports long doubles and they must be 592** aligned in 16-byte boundaries, then you should add long double in the 593** union.) Probably you do not need to change this. 594*/ 595#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; } 596 597 598/* 599@@ LUAI_THROW/LUAI_TRY define how Lua does exception handling. 600** CHANGE them if you prefer to use longjmp/setjmp even with C++ 601** or if want/don't to use _longjmp/_setjmp instead of regular 602** longjmp/setjmp. By default, Lua handles errors with exceptions when 603** compiling as C++ code, with _longjmp/_setjmp when asked to use them, 604** and with longjmp/setjmp otherwise. 605*/ 606#if defined(__cplusplus) 607/* C++ exceptions */ 608#define LUAI_THROW(L,c) throw(c) 609#define LUAI_TRY(L,c,a) try { a } catch(...) \ 610 { if ((c)->status == 0) (c)->status = -1; } 611#define luai_jmpbuf int /* dummy variable */ 612 613#elif defined(LUA_USE_ULONGJMP) 614/* in Unix, try _longjmp/_setjmp (more efficient) */ 615#define LUAI_THROW(L,c) _longjmp((c)->b, 1) 616#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a } 617#define luai_jmpbuf jmp_buf 618 619#else 620/* default handling with long jumps */ 621#define LUAI_THROW(L,c) longjmp((c)->b, 1) 622#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } 623#define luai_jmpbuf jmp_buf 624 625#endif 626 627 628/* 629@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern 630@* can do during pattern-matching. 631** CHANGE it if you need more captures. This limit is arbitrary. 632*/ 633#define LUA_MAXCAPTURES 32 634 635 636/* 637@@ lua_tmpnam is the function that the OS library uses to create a 638@* temporary name. 639@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam. 640** CHANGE them if you have an alternative to tmpnam (which is considered 641** insecure) or if you want the original tmpnam anyway. By default, Lua 642** uses tmpnam except when POSIX is available, where it uses mkstemp. 643*/ 644#if defined(loslib_c) || defined(luaall_c) 645 646#if defined(LUA_USE_MKSTEMP) 647#include <unistd.h> 648#define LUA_TMPNAMBUFSIZE 32 649#define lua_tmpnam(b,e) { \ 650 strcpy(b, "/tmp/lua_XXXXXX"); \ 651 e = mkstemp(b); \ 652 if (e != -1) close(e); \ 653 e = (e == -1); } 654 655#else 656#define LUA_TMPNAMBUFSIZE L_tmpnam 657#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } 658#endif 659 660#endif 661 662 663/* 664@@ lua_popen spawns a new process connected to the current one through 665@* the file streams. 666** CHANGE it if you have a way to implement it in your system. 667*/ 668#if defined(LUA_USE_POPEN) 669 670#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m)) 671#define lua_pclose(L,file) ((void)L, (pclose(file) != -1)) 672 673#elif defined(LUA_WIN) 674 675#define lua_popen(L,c,m) ((void)L, _popen(c,m)) 676#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1)) 677 678#else 679 680#define lua_popen(L,c,m) ((void)((void)c, m), \ 681 luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) 682#define lua_pclose(L,file) ((void)((void)L, file), 0) 683 684#endif 685 686/* 687@@ LUA_DL_* define which dynamic-library system Lua should use. 688** CHANGE here if Lua has problems choosing the appropriate 689** dynamic-library system for your platform (either Windows' DLL, Mac's 690** dyld, or Unix's dlopen). If your system is some kind of Unix, there 691** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for 692** it. To use dlopen you also need to adapt the src/Makefile (probably 693** adding -ldl to the linker options), so Lua does not select it 694** automatically. (When you change the makefile to add -ldl, you must 695** also add -DLUA_USE_DLOPEN.) 696** If you do not want any kind of dynamic library, undefine all these 697** options. 698** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD. 699*/ 700#if defined(LUA_USE_DLOPEN) 701#define LUA_DL_DLOPEN 702#endif 703 704#if defined(LUA_WIN) 705#define LUA_DL_DLL 706#endif 707 708 709/* 710@@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State 711@* (the data goes just *before* the lua_State pointer). 712** CHANGE (define) this if you really need that. This value must be 713** a multiple of the maximum alignment required for your machine. 714*/ 715#define LUAI_EXTRASPACE 0 716 717 718/* 719@@ luai_userstate* allow user-specific actions on threads. 720** CHANGE them if you defined LUAI_EXTRASPACE and need to do something 721** extra when a thread is created/deleted/resumed/yielded. 722*/ 723#define luai_userstateopen(L) ((void)L) 724#define luai_userstateclose(L) ((void)L) 725#define luai_userstatethread(L,L1) ((void)L) 726#define luai_userstatefree(L) ((void)L) 727#define luai_userstateresume(L,n) ((void)L) 728#define luai_userstateyield(L,n) ((void)L) 729 730 731/* 732@@ LUA_INTFRMLEN is the length modifier for integer conversions 733@* in 'string.format'. 734@@ LUA_INTFRM_T is the integer type correspoding to the previous length 735@* modifier. 736** CHANGE them if your system supports long long or does not support long. 737*/ 738 739#if defined(LUA_USELONGLONG) 740 741#define LUA_INTFRMLEN "ll" 742#define LUA_INTFRM_T long long 743 744#else 745 746#define LUA_INTFRMLEN "l" 747#define LUA_INTFRM_T long 748 749#endif 750 751 752 753/* =================================================================== */ 754 755/* 756** Local configuration. You can use this space to add your redefinitions 757** without modifying the main part of the file. 758*/ 759 760 761 762#endif 763