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
16
** ==================================================================
17
** Search for "@@" to find all configurable definitions.
18
** ===================================================================
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.
27
#if defined(__STRICT_ANSI__)
32
#if !defined(LUA_ANSI) && defined(_WIN32)
36
#if defined(LUA_USE_LINUX)
38
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
39
#define LUA_USE_READLINE /* needs some extra libraries */
42
#if defined(LUA_USE_MACOSX)
44
#define LUA_DL_DYLD /* does not need extra library */
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.
54
#if defined(LUA_USE_POSIX)
55
#define LUA_USE_MKSTEMP
56
#define LUA_USE_ISATTY
58
#define LUA_USE_ULONGJMP
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.
69
#define LUA_PATH "LUA_PATH"
70
#define LUA_CPATH "LUA_CPATH"
71
#define LUA_INIT "LUA_INIT"
75
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
77
@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
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.
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.
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"
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"
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 "\".)
114
#define LUA_DIRSEP "\\"
116
#define LUA_DIRSEP "/"
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
124
@@ LUA_EXECDIR in a Windows path is replaced by the executable's
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.
132
#define LUA_PATHSEP ";"
133
#define LUA_PATH_MARK "?"
134
#define LUA_EXECDIR "!"
135
#define LUA_IGMARK "-"
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.)
143
#define LUA_INTEGER ptrdiff_t
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).
154
#if defined(LUA_BUILD_AS_DLL)
156
#if defined(LUA_CORE) || defined(LUA_LIB)
157
#define LUA_API __declspec(dllexport)
159
#define LUA_API __declspec(dllimport)
164
#define LUA_API extern
168
/* more often than not the libs go together with the core */
169
#define LUALIB_API LUA_API
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.
181
#if defined(luaall_c)
182
#define LUAI_FUNC static
183
#define LUAI_DATA /* empty */
185
#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
187
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
188
#define LUAI_DATA LUAI_FUNC
191
#define LUAI_FUNC extern
192
#define LUAI_DATA extern
198
@@ LUA_QL describes how error messages quote program elements.
199
** CHANGE it if you want a different appearance.
201
#define LUA_QL(x) "'" x "'"
202
#define LUA_QS LUA_QL("%s")
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.
210
#define LUA_IDSIZE 60
214
** {==================================================================
215
** Stand-alone configuration
216
** ===================================================================
219
#if defined(lua_c) || defined(luaall_c)
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
227
#if defined(LUA_USE_ISATTY)
229
#define lua_stdin_is_tty() isatty(0)
230
#elif defined(LUA_WIN)
233
#define lua_stdin_is_tty() _isatty(_fileno(stdin))
235
#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
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.)
245
#define LUA_PROMPT "> "
246
#define LUA_PROMPT2 ">> "
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.
254
#define LUA_PROGNAME "lua"
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.
262
#define LUA_MAXINPUT 512
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).
273
#if defined(LUA_USE_READLINE)
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))
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; }
292
/* }================================================================== */
296
@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
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.
302
#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
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.
313
#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
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.
322
#undef LUA_COMPAT_GETN
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').
329
#undef LUA_COMPAT_LOADLIB
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).
336
#define LUA_COMPAT_VARARG
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'.
343
#define LUA_COMPAT_MOD
346
@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
348
** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
349
** off the advisory error when nesting [[...]].
351
#define LUA_COMPAT_LSTR 1
354
@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
355
** CHANGE it to undefined as soon as you rename 'string.gfind' to
358
#define LUA_COMPAT_GFIND
361
@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
363
** CHANGE it to undefined as soon as you replace to 'luaL_register'
364
** your uses of 'luaL_openlib'
366
#define LUA_COMPAT_OPENLIB
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.
377
#if defined(LUA_USE_APICHECK)
379
#define luai_apicheck(L,o) { (void)L; assert(o); }
381
#define luai_apicheck(L,o) { (void)L; }
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.
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
397
#error "you must define LUA_BITSINT with number of bits in an integer"
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
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.
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
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
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.
435
#define LUAI_MAXCALLS 20000
439
@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
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)
446
#define LUAI_MAXCSTACK 8000
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
** ===================================================================
465
@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
466
@* syntactical nested non-terminals in a program.
468
#define LUAI_MAXCCALLS 200
472
@@ LUAI_MAXVARS is the maximum number of local variables per function
473
@* (must be smaller than 250).
475
#define LUAI_MAXVARS 200
479
@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
480
@* (must be smaller than 250).
482
#define LUAI_MAXUPVALUES 60
486
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
488
#define LUAL_BUFFERSIZE BUFSIZ
490
/* }================================================================== */
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
** ===================================================================
504
#define LUA_NUMBER_DOUBLE
505
#define LUA_NUMBER double
508
@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
511
#define LUAI_UACNUMBER double
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.
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))
529
@@ The luai_num* macros define the primitive operations over numbers.
531
#if defined(LUA_CORE)
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)))
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.
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__))
560
/* On a Microsoft compiler, use assembler */
561
#if defined(_MSC_VER)
563
#define lua_number2int(i,d) __asm fld d __asm fistp i
564
#define lua_number2integer(i,n) lua_number2int(i, n)
566
/* the next trick should work on any Pentium, but sometimes clashes
567
with a DirectX idiosyncrasy */
570
union 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)
578
/* this option always works, but may be slow */
580
#define lua_number2int(i,d) ((i)=(int)(d))
581
#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
585
/* }================================================================== */
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.
595
#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
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.
606
#if defined(__cplusplus)
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 */
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
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
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.
633
#define LUA_MAXCAPTURES 32
637
@@ lua_tmpnam is the function that the OS library uses to create a
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.
644
#if defined(loslib_c) || defined(luaall_c)
646
#if defined(LUA_USE_MKSTEMP)
648
#define LUA_TMPNAMBUFSIZE 32
649
#define lua_tmpnam(b,e) { \
650
strcpy(b, "/tmp/lua_XXXXXX"); \
652
if (e != -1) close(e); \
656
#define LUA_TMPNAMBUFSIZE L_tmpnam
657
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
664
@@ lua_popen spawns a new process connected to the current one through
666
** CHANGE it if you have a way to implement it in your system.
668
#if defined(LUA_USE_POPEN)
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))
673
#elif defined(LUA_WIN)
675
#define lua_popen(L,c,m) ((void)L, _popen(c,m))
676
#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
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)
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
698
** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
700
#if defined(LUA_USE_DLOPEN)
701
#define LUA_DL_DLOPEN
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.
715
#define LUAI_EXTRASPACE 0
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.
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)
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
736
** CHANGE them if your system supports long long or does not support long.
739
#if defined(LUA_USELONGLONG)
741
#define LUA_INTFRMLEN "ll"
742
#define LUA_INTFRM_T long long
746
#define LUA_INTFRMLEN "l"
747
#define LUA_INTFRM_T long
753
/* =================================================================== */
756
** Local configuration. You can use this space to add your redefinitions
757
** without modifying the main part of the file.
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removed
fceu/src/lua/src/luaconf.h
