forked from KolibriOS/kolibrios
529 lines
14 KiB
C
529 lines
14 KiB
C
/*
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** $Id: luaconf.h,v 1.170 2011/12/06 16:58:36 roberto Exp $
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** Configuration file for Lua
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** See Copyright Notice in lua.h
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*/
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#ifndef lconfig_h
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#define lconfig_h
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#include <limits.h>
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#include <stddef.h>
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/*
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** ==================================================================
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** Search for "@@" to find all configurable definitions.
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** ===================================================================
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*/
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/*
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@@ LUA_ANSI controls the use of non-ansi features.
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** CHANGE it (define it) if you want Lua to avoid the use of any
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** non-ansi feature or library.
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*/
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#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__)
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#define LUA_ANSI
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#endif
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#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE)
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#define LUA_WIN /* enable goodies for regular Windows platforms */
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#endif
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#if defined(LUA_WIN)
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#define LUA_DL_DLL
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#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
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#endif
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#if defined(LUA_USE_LINUX)
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#define LUA_USE_POSIX
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#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
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#define LUA_USE_READLINE /* needs some extra libraries */
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#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
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#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
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#define LUA_USE_LONGLONG /* assume support for long long */
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#endif
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#if defined(LUA_USE_MACOSX)
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#define LUA_USE_POSIX
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#define LUA_USE_DLOPEN /* does not need -ldl */
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#define LUA_USE_READLINE /* needs an extra library: -lreadline */
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#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
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#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
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#define LUA_USE_LONGLONG /* assume support for long long */
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#endif
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/*
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@@ LUA_USE_POSIX includes all functionality listed as X/Open System
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@* Interfaces Extension (XSI).
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** CHANGE it (define it) if your system is XSI compatible.
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*/
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#if defined(LUA_USE_POSIX)
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#define LUA_USE_MKSTEMP
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#define LUA_USE_ISATTY
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#define LUA_USE_POPEN
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#define LUA_USE_ULONGJMP
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#define LUA_USE_GMTIME_R
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#endif
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/*
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@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
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@* Lua libraries.
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@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
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@* C libraries.
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** CHANGE them if your machine has a non-conventional directory
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** hierarchy or if you want to install your libraries in
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** non-conventional directories.
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*/
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#if defined(_WIN32) /* { */
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/*
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** In Windows, any exclamation mark ('!') in the path is replaced by the
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** path of the directory of the executable file of the current process.
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*/
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#define LUA_LDIR "!\\lua\\"
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#define LUA_CDIR "!\\"
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#define LUA_PATH_DEFAULT \
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LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
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LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua"
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#define LUA_CPATH_DEFAULT \
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LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll"
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#else /* }{ */
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#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/"
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#define LUA_ROOT "/usr/local/"
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#define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR
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#define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR
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#define LUA_PATH_DEFAULT \
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LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
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LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" "./?.lua"
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#define LUA_CPATH_DEFAULT \
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LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
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#endif /* } */
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/*
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@@ LUA_DIRSEP is the directory separator (for submodules).
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** CHANGE it if your machine does not use "/" as the directory separator
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** and is not Windows. (On Windows Lua automatically uses "\".)
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*/
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#if defined(_WIN32)
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#define LUA_DIRSEP "\\"
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#else
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#define LUA_DIRSEP "/"
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#endif
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/*
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@@ LUA_ENV is the name of the variable that holds the current
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@@ environment, used to access global names.
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** CHANGE it if you do not like this name.
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*/
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#define LUA_ENV "_ENV"
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/*
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@@ LUA_API is a mark for all core API functions.
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@@ LUALIB_API is a mark for all auxiliary library functions.
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@@ LUAMOD_API is a mark for all standard library opening functions.
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** CHANGE them if you need to define those functions in some special way.
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** For instance, if you want to create one Windows DLL with the core and
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** the libraries, you may want to use the following definition (define
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** LUA_BUILD_AS_DLL to get it).
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*/
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#if defined(LUA_BUILD_AS_DLL) /* { */
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#if defined(LUA_CORE) || defined(LUA_LIB) /* { */
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#define LUA_API __declspec(dllexport)
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#else /* }{ */
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#define LUA_API __declspec(dllimport)
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#endif /* } */
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#else /* }{ */
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#define LUA_API extern
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#endif /* } */
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/* more often than not the libs go together with the core */
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#define LUALIB_API LUA_API
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#define LUAMOD_API LUALIB_API
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/*
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@@ LUAI_FUNC is a mark for all extern functions that are not to be
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@* exported to outside modules.
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@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
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@* that are not to be exported to outside modules (LUAI_DDEF for
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@* definitions and LUAI_DDEC for declarations).
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** CHANGE them if you need to mark them in some special way. Elf/gcc
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** (versions 3.2 and later) mark them as "hidden" to optimize access
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** when Lua is compiled as a shared library. Not all elf targets support
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** this attribute. Unfortunately, gcc does not offer a way to check
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** whether the target offers that support, and those without support
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** give a warning about it. To avoid these warnings, change to the
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** default definition.
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*/
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#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
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defined(__ELF__) /* { */
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#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
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#define LUAI_DDEC LUAI_FUNC
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#define LUAI_DDEF /* empty */
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#else /* }{ */
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#define LUAI_FUNC extern
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#define LUAI_DDEC extern
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#define LUAI_DDEF /* empty */
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#endif /* } */
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/*
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@@ LUA_QL describes how error messages quote program elements.
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** CHANGE it if you want a different appearance.
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*/
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#define LUA_QL(x) "'" x "'"
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#define LUA_QS LUA_QL("%s")
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/*
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@@ LUA_IDSIZE gives the maximum size for the description of the source
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@* of a function in debug information.
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** CHANGE it if you want a different size.
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*/
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#define LUA_IDSIZE 60
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/*
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@@ luai_writestring/luai_writeline define how 'print' prints its results.
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** They are only used in libraries and the stand-alone program. (The #if
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** avoids including 'stdio.h' everywhere.)
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*/
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#if defined(LUA_LIB) || defined(lua_c)
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#include <stdio.h>
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#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout)
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#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout))
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#endif
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/*
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@@ luai_writestringerror defines how to print error messages.
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** (A format string with one argument is enough for Lua...)
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*/
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#define luai_writestringerror(s,p) \
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(fprintf(stderr, (s), (p)), fflush(stderr))
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/*
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** {==================================================================
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** Compatibility with previous versions
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** ===================================================================
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*/
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/*
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@@ LUA_COMPAT_ALL controls all compatibility options.
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** You can define it to get all options, or change specific options
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** to fit your specific needs.
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*/
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#if defined(LUA_COMPAT_ALL) /* { */
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/*
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@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
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** You can replace it with 'table.unpack'.
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*/
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#define LUA_COMPAT_UNPACK
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/*
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@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
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** You can replace it with 'package.searchers'.
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*/
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#define LUA_COMPAT_LOADERS
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/*
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@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
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** You can call your C function directly (with light C functions).
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*/
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#define lua_cpcall(L,f,u) \
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(lua_pushcfunction(L, (f)), \
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lua_pushlightuserdata(L,(u)), \
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lua_pcall(L,1,0,0))
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/*
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@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
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** You can rewrite 'log10(x)' as 'log(x, 10)'.
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*/
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#define LUA_COMPAT_LOG10
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/*
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@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
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** library. You can rewrite 'loadstring(s)' as 'load(s)'.
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*/
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#define LUA_COMPAT_LOADSTRING
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/*
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@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
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*/
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#define LUA_COMPAT_MAXN
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/*
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@@ The following macros supply trivial compatibility for some
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** changes in the API. The macros themselves document how to
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** change your code to avoid using them.
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*/
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#define lua_strlen(L,i) lua_rawlen(L, (i))
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#define lua_objlen(L,i) lua_rawlen(L, (i))
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#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ)
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#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT)
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/*
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@@ LUA_COMPAT_MODULE controls compatibility with previous
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** module functions 'module' (Lua) and 'luaL_register' (C).
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*/
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#define LUA_COMPAT_MODULE
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#endif /* } */
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/* }================================================================== */
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/*
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@@ LUAI_BITSINT defines the number of bits in an int.
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** CHANGE here if Lua cannot automatically detect the number of bits of
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** your machine. Probably you do not need to change this.
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*/
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/* avoid overflows in comparison */
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#if INT_MAX-20 < 32760 /* { */
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#define LUAI_BITSINT 16
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#elif INT_MAX > 2147483640L /* }{ */
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/* int has at least 32 bits */
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#define LUAI_BITSINT 32
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#else /* }{ */
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#error "you must define LUA_BITSINT with number of bits in an integer"
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#endif /* } */
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/*
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@@ LUA_INT32 is an signed integer with exactly 32 bits.
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@@ LUAI_UMEM is an unsigned integer big enough to count the total
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@* memory used by Lua.
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@@ LUAI_MEM is a signed integer big enough to count the total memory
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@* used by Lua.
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** CHANGE here if for some weird reason the default definitions are not
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** good enough for your machine. Probably you do not need to change
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** this.
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*/
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#if LUAI_BITSINT >= 32 /* { */
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#define LUA_INT32 int
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#define LUAI_UMEM size_t
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#define LUAI_MEM ptrdiff_t
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#else /* }{ */
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/* 16-bit ints */
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#define LUA_INT32 long
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#define LUAI_UMEM unsigned long
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#define LUAI_MEM long
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#endif /* } */
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/*
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@@ LUAI_MAXSTACK limits the size of the Lua stack.
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** CHANGE it if you need a different limit. This limit is arbitrary;
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** its only purpose is to stop Lua to consume unlimited stack
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** space (and to reserve some numbers for pseudo-indices).
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*/
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#if LUAI_BITSINT >= 32
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#define LUAI_MAXSTACK 1000000
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#else
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#define LUAI_MAXSTACK 15000
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#endif
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/* reserve some space for error handling */
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#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
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/*
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@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
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** CHANGE it if it uses too much C-stack space.
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*/
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#define LUAL_BUFFERSIZE BUFSIZ
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/*
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** {==================================================================
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@@ LUA_NUMBER is the type of numbers in Lua.
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** CHANGE the following definitions only if you want to build Lua
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** with a number type different from double. You may also need to
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** change lua_number2int & lua_number2integer.
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** ===================================================================
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*/
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#define LUA_NUMBER_DOUBLE
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#define LUA_NUMBER double
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/*
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@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
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@* over a number.
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*/
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#define LUAI_UACNUMBER double
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/*
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@@ LUA_NUMBER_SCAN is the format for reading numbers.
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@@ LUA_NUMBER_FMT is the format for writing numbers.
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@@ lua_number2str converts a number to a string.
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@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
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*/
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#define LUA_NUMBER_SCAN "%lf"
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#define LUA_NUMBER_FMT "%.14g"
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#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
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#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
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/*
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@@ lua_str2number converts a decimal numeric string to a number.
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@@ lua_strx2number converts an hexadecimal numeric string to a number.
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** In C99, 'strtod' do both conversions. C89, however, has no function
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** to convert floating hexadecimal strings to numbers. For these
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** systems, you can leave 'lua_strx2number' undefined and Lua will
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** provide its own implementation.
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*/
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#define lua_str2number(s,p) strtod((s), (p))
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#if defined(LUA_USE_STRTODHEX)
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#define lua_strx2number(s,p) strtod((s), (p))
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#endif
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/*
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@@ The luai_num* macros define the primitive operations over numbers.
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*/
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/* the following operations need the math library */
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#if defined(lobject_c) || defined(lvm_c)
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#include <math.h>
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#define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b))
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#define luai_numpow(L,a,b) (pow(a,b))
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#endif
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/* these are quite standard operations */
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#if defined(LUA_CORE)
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#define luai_numadd(L,a,b) ((a)+(b))
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#define luai_numsub(L,a,b) ((a)-(b))
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#define luai_nummul(L,a,b) ((a)*(b))
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#define luai_numdiv(L,a,b) ((a)/(b))
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#define luai_numunm(L,a) (-(a))
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#define luai_numeq(a,b) ((a)==(b))
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#define luai_numlt(L,a,b) ((a)<(b))
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#define luai_numle(L,a,b) ((a)<=(b))
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#define luai_numisnan(L,a) (!luai_numeq((a), (a)))
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#endif
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/*
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@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
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** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
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** machines, ptrdiff_t gives a good choice between int or long.)
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*/
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#define LUA_INTEGER ptrdiff_t
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/*
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@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned.
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** It must have at least 32 bits.
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*/
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#define LUA_UNSIGNED unsigned LUA_INT32
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#if defined(LUA_CORE) /* { */
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#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
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/* On a Microsoft compiler on a Pentium, use assembler to avoid clashes
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with a DirectX idiosyncrasy */
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#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */
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#define MS_ASMTRICK
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#else /* }{ */
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/* the next definition uses a trick that should work on any machine
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using IEEE754 with a 32-bit integer type */
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#define LUA_IEEE754TRICK
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/*
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@@ LUA_IEEEENDIAN is the endianness of doubles in your machine
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** (0 for little endian, 1 for big endian); if not defined, Lua will
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** check it dynamically.
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*/
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/* check for known architectures */
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#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
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defined (__x86_64)
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#define LUA_IEEEENDIAN 0
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#elif defined(__POWERPC__) || defined(__ppc__)
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#define LUA_IEEEENDIAN 1
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#endif
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#endif /* } */
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#endif /* } */
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#endif /* } */
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/* }================================================================== */
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/*
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@@ LUA_NANTRICK_LE/LUA_NANTRICK_BE controls the use of a trick to
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** pack all types into a single double value, using NaN values to
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** represent non-number values. The trick only works on 32-bit machines
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** (ints and pointers are 32-bit values) with numbers represented as
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** IEEE 754-2008 doubles with conventional endianess (12345678 or
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** 87654321), in CPUs that do not produce signaling NaN values (all NaNs
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** are quiet).
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*/
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#if defined(LUA_CORE) && \
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defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
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/* little-endian architectures that satisfy those conditions */
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#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
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defined(_M_IX86)
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#define LUA_NANTRICK_LE
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#endif
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#endif /* } */
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/* =================================================================== */
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/*
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** Local configuration. You can use this space to add your redefinitions
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** without modifying the main part of the file.
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*/
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#endif
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