1 /* 2 ** $Id: luaconf.h,v 1.1 2007-05-24 23:45:56 dirkpitt2050 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. 444 */ 445 #define LUAI_MAXCSTACK 2048 446 447 448 449 /* 450 ** {================================================================== 451 ** CHANGE (to smaller values) the following definitions if your system 452 ** has a small C stack. (Or you may want to change them to larger 453 ** values if your system has a large C stack and these limits are 454 ** too rigid for you.) Some of these constants control the size of 455 ** stack-allocated arrays used by the compiler or the interpreter, while 456 ** others limit the maximum number of recursive calls that the compiler 457 ** or the interpreter can perform. Values too large may cause a C stack 458 ** overflow for some forms of deep constructs. 459 ** =================================================================== 460 */ 461 462 463 /* 464 @@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and 465 @* syntactical nested non-terminals in a program. 466 */ 467 #define LUAI_MAXCCALLS 200 468 469 470 /* 471 @@ LUAI_MAXVARS is the maximum number of local variables per function 472 @* (must be smaller than 250). 473 */ 474 #define LUAI_MAXVARS 200 475 476 477 /* 478 @@ LUAI_MAXUPVALUES is the maximum number of upvalues per function 479 @* (must be smaller than 250). 480 */ 481 #define LUAI_MAXUPVALUES 60 482 483 484 /* 485 @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 486 */ 487 #define LUAL_BUFFERSIZE BUFSIZ 488 489 /* }================================================================== */ 490 491 492 493 494 /* 495 ** {================================================================== 496 @@ LUA_NUMBER is the type of numbers in Lua. 497 ** CHANGE the following definitions only if you want to build Lua 498 ** with a number type different from double. You may also need to 499 ** change lua_number2int & lua_number2integer. 500 ** =================================================================== 501 */ 502 503 #define LUA_NUMBER_DOUBLE 504 #define LUA_NUMBER double 505 506 /* 507 @@ LUAI_UACNUMBER is the result of an 'usual argument conversion' 508 @* over a number. 509 */ 510 #define LUAI_UACNUMBER double 511 512 513 /* 514 @@ LUA_NUMBER_SCAN is the format for reading numbers. 515 @@ LUA_NUMBER_FMT is the format for writing numbers. 516 @@ lua_number2str converts a number to a string. 517 @@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. 518 @@ lua_str2number converts a string to a number. 519 */ 520 #define LUA_NUMBER_SCAN "%lf" 521 #define LUA_NUMBER_FMT "%.14g" 522 #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) 523 #define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ 524 #define lua_str2number(s,p) strtod((s), (p)) 525 526 527 /* 528 @@ The luai_num* macros define the primitive operations over numbers. 529 */ 530 #if defined(LUA_CORE) 531 #include <math.h> 532 #define luai_numadd(a,b) ((a)+(b)) 533 #define luai_numsub(a,b) ((a)-(b)) 534 #define luai_nummul(a,b) ((a)*(b)) 535 #define luai_numdiv(a,b) ((a)/(b)) 536 #define luai_nummod(a,b) ((a) - floor((a)/(b))*(b)) 537 #define luai_numpow(a,b) (pow(a,b)) 538 #define luai_numunm(a) (-(a)) 539 #define luai_numeq(a,b) ((a)==(b)) 540 #define luai_numlt(a,b) ((a)<(b)) 541 #define luai_numle(a,b) ((a)<=(b)) 542 #define luai_numisnan(a) (!luai_numeq((a), (a))) 543 #endif 544 545 546 /* 547 @@ lua_number2int is a macro to convert lua_Number to int. 548 @@ lua_number2integer is a macro to convert lua_Number to lua_Integer. 549 ** CHANGE them if you know a faster way to convert a lua_Number to 550 ** int (with any rounding method and without throwing errors) in your 551 ** system. In Pentium machines, a naive typecast from double to int 552 ** in C is extremely slow, so any alternative is worth trying. 553 */ 554 555 /* On a Pentium, resort to a trick */ 556 #if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \ 557 (defined(__i386) || defined (_M_IX86) || defined(__i386__)) 558 559 /* On a Microsoft compiler, use assembler */ 560 #if defined(_MSC_VER) 561 562 #define lua_number2int(i,d) __asm fld d __asm fistp i 563 #define lua_number2integer(i,n) lua_number2int(i, n) 564 565 /* the next trick should work on any Pentium, but sometimes clashes 566 with a DirectX idiosyncrasy */ 567 #else 568 569 union luai_Cast { double l_d; long l_l; }; 570 #define lua_number2int(i,d) \ 571 { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } 572 #define lua_number2integer(i,n) lua_number2int(i, n) 573 574 #endif 575 576 577 /* this option always works, but may be slow */ 578 #else 579 #define lua_number2int(i,d) ((i)=(int)(d)) 580 #define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) 581 582 #endif 583 584 /* }================================================================== */ 585 586 587 /* 588 @@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. 589 ** CHANGE it if your system requires alignments larger than double. (For 590 ** instance, if your system supports long doubles and they must be 591 ** aligned in 16-byte boundaries, then you should add long double in the 592 ** union.) Probably you do not need to change this. 593 */ 594 #define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; } 595 596 597 /* 598 @@ LUAI_THROW/LUAI_TRY define how Lua does exception handling. 599 ** CHANGE them if you prefer to use longjmp/setjmp even with C++ 600 ** or if want/don't to use _longjmp/_setjmp instead of regular 601 ** longjmp/setjmp. By default, Lua handles errors with exceptions when 602 ** compiling as C++ code, with _longjmp/_setjmp when asked to use them, 603 ** and with longjmp/setjmp otherwise. 604 */ 605 #if defined(__cplusplus) 606 /* C++ exceptions */ 607 #define LUAI_THROW(L,c) throw(c) 608 #define LUAI_TRY(L,c,a) try { a } catch(...) \ 609 { if ((c)->status == 0) (c)->status = -1; } 610 #define luai_jmpbuf int /* dummy variable */ 611 612 #elif defined(LUA_USE_ULONGJMP) 613 /* in Unix, try _longjmp/_setjmp (more efficient) */ 614 #define LUAI_THROW(L,c) _longjmp((c)->b, 1) 615 #define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a } 616 #define luai_jmpbuf jmp_buf 617 618 #else 619 /* default handling with long jumps */ 620 #define LUAI_THROW(L,c) longjmp((c)->b, 1) 621 #define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } 622 #define luai_jmpbuf jmp_buf 623 624 #endif 625 626 627 /* 628 @@ LUA_MAXCAPTURES is the maximum number of captures that a pattern 629 @* can do during pattern-matching. 630 ** CHANGE it if you need more captures. This limit is arbitrary. 631 */ 632 #define LUA_MAXCAPTURES 32 633 634 635 /* 636 @@ lua_tmpnam is the function that the OS library uses to create a 637 @* temporary name. 638 @@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam. 639 ** CHANGE them if you have an alternative to tmpnam (which is considered 640 ** insecure) or if you want the original tmpnam anyway. By default, Lua 641 ** uses tmpnam except when POSIX is available, where it uses mkstemp. 642 */ 643 #if defined(loslib_c) || defined(luaall_c) 644 645 #if defined(LUA_USE_MKSTEMP) 646 #include <unistd.h> 647 #define LUA_TMPNAMBUFSIZE 32 648 #define lua_tmpnam(b,e) { \ 649 strcpy(b, "/tmp/lua_XXXXXX"); \ 650 e = mkstemp(b); \ 651 if (e != -1) close(e); \ 652 e = (e == -1); } 653 654 #else 655 #define LUA_TMPNAMBUFSIZE L_tmpnam 656 #define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } 657 #endif 658 659 #endif 660 661 662 /* 663 @@ lua_popen spawns a new process connected to the current one through 664 @* the file streams. 665 ** CHANGE it if you have a way to implement it in your system. 666 */ 667 #if defined(LUA_USE_POPEN) 668 669 #define lua_popen(L,c,m) ((void)L, popen(c,m)) 670 #define lua_pclose(L,file) ((void)L, (pclose(file) != -1)) 671 672 #elif defined(LUA_WIN) 673 674 #define lua_popen(L,c,m) ((void)L, _popen(c,m)) 675 #define lua_pclose(L,file) ((void)L, (_pclose(file) != -1)) 676 677 #else 678 679 #define lua_popen(L,c,m) ((void)((void)c, m), \ 680 luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) 681 #define lua_pclose(L,file) ((void)((void)L, file), 0) 682 683 #endif 684 685 /* 686 @@ LUA_DL_* define which dynamic-library system Lua should use. 687 ** CHANGE here if Lua has problems choosing the appropriate 688 ** dynamic-library system for your platform (either Windows' DLL, Mac's 689 ** dyld, or Unix's dlopen). If your system is some kind of Unix, there 690 ** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for 691 ** it. To use dlopen you also need to adapt the src/Makefile (probably 692 ** adding -ldl to the linker options), so Lua does not select it 693 ** automatically. (When you change the makefile to add -ldl, you must 694 ** also add -DLUA_USE_DLOPEN.) 695 ** If you do not want any kind of dynamic library, undefine all these 696 ** options. 697 ** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD. 698 */ 699 #if defined(LUA_USE_DLOPEN) 700 #define LUA_DL_DLOPEN 701 #endif 702 703 #if defined(LUA_WIN) 704 #define LUA_DL_DLL 705 #endif 706 707 708 /* 709 @@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State 710 @* (the data goes just *before* the lua_State pointer). 711 ** CHANGE (define) this if you really need that. This value must be 712 ** a multiple of the maximum alignment required for your machine. 713 */ 714 #define LUAI_EXTRASPACE 0 715 716 717 /* 718 @@ luai_userstate* allow user-specific actions on threads. 719 ** CHANGE them if you defined LUAI_EXTRASPACE and need to do something 720 ** extra when a thread is created/deleted/resumed/yielded. 721 */ 722 #define luai_userstateopen(L) ((void)L) 723 #define luai_userstateclose(L) ((void)L) 724 #define luai_userstatethread(L,L1) ((void)L) 725 #define luai_userstatefree(L) ((void)L) 726 #define luai_userstateresume(L,n) ((void)L) 727 #define luai_userstateyield(L,n) ((void)L) 728 729 730 /* 731 @@ LUA_INTFRMLEN is the length modifier for integer conversions 732 @* in 'string.format'. 733 @@ LUA_INTFRM_T is the integer type correspoding to the previous length 734 @* modifier. 735 ** CHANGE them if your system supports long long or does not support long. 736 */ 737 738 #if defined(LUA_USELONGLONG) 739 740 #define LUA_INTFRMLEN "ll" 741 #define LUA_INTFRM_T long long 742 743 #else 744 745 #define LUA_INTFRMLEN "l" 746 #define LUA_INTFRM_T long 747 748 #endif 749 750 751 752 /* =================================================================== */ 753 754 /* 755 ** Local configuration. You can use this space to add your redefinitions 756 ** without modifying the main part of the file. 757 */ 758 759 760 761 #endif 762 763