different organization for platform dependencies

luaconf.h

@@ -1,5 +1,5 @@
 /*
-** $Id: luaconf.h,v 1.67 2005/09/14 17:44:48 roberto Exp roberto $
+** $Id: luaconf.h,v 1.68 2005/09/19 13:49:12 roberto Exp roberto $
 ** Configuration file for Lua
 ** See Copyright Notice in lua.h
 */
@@ -19,8 +19,6 @@
 */
 
 
-
-
 /*
 @@ LUA_ANSI controls the use of non-ansi features.
 ** CHANGE it (define it) if you want Lua to avoid the use of any
@@ -31,6 +29,33 @@
 #endif
 
 
+#if !defined(LUA_ANSI)
+
+#if defined(__linux__)
+#define LUA_USE_MKSTEMP
+#define LUA_USE_ISATTY
+#define LUA_USE_ULONGJMP
+#define LUA_USE_POPEN
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define LUA_USE_MKSTEMP
+#define LUA_USE_ISATTY
+#define LUA_USE_ULONGJMP
+#define LUA_USE_POPEN
+#define LUA_DL_DYLD
+#endif
+
+#if defined(_WIN32)
+#define LUA_DL_DLL
+#endif
+
+#endif
+
+
+
+
+
 /*
 @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
 @* Lua libraries.
@@ -141,10 +166,12 @@
 #if defined(luaall_c)
 #define LUAI_FUNC	static
 #define LUAI_DATA	/* empty */
+
 #elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
       defined(__ELF__)
 #define LUAI_FUNC	__attribute__((visibility("hidden"))) extern
 #define LUAI_DATA	LUAI_FUNC
+
 #else
 #define LUAI_FUNC	extern
 #define LUAI_DATA	extern
@@ -189,7 +216,7 @@
 ** CHANGE it if you have a better definition for non-POSIX/non-Windows
 ** systems.
 */
-#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE)
+#if defined(LUA_USE_ISATTY)
 #include <unistd.h>
 #define lua_stdin_is_tty()	isatty(0)
 #elif !defined(LUA_ANSI) && defined(_WIN32)
@@ -517,6 +544,8 @@ union luai_Cast { double l_d; long l_l; };
 /*
 @@ The luai_num* macros define the primitive operations over numbers.
 */
+#if defined(LUA_CORE)
+#include <math.h>
 #define luai_numadd(L,a,b)	((a)+(b))
 #define luai_numsub(L,a,b)	((a)-(b))
 #define luai_nummul(L,a,b)	((a)*(b))
@@ -527,6 +556,7 @@ union luai_Cast { double l_d; long l_l; };
 #define luai_numeq(L,a,b)	((a)==(b))
 #define luai_numlt(L,a,b)	((a)<(b))
 #define luai_numle(L,a,b)	((a)<=(b))
+#endif
 
 /* }================================================================== */
 
@@ -589,7 +619,7 @@ union luai_Cast { double l_d; long l_l; };
 */
 #if defined(loslib_c) || defined(luaall_c)
 
-#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE)
+#if defined(LUA_USE_MKSTEMP)
 #include <unistd.h>
 #define LUA_TMPNAMBUFSIZE	32
 #define lua_tmpnam(b,e)	{ \
@@ -597,6 +627,7 @@ union luai_Cast { double l_d; long l_l; };
 	e = mkstemp(b); \
 	if (e != -1) close(e); \
 	e = (e == -1); }
+
 #else
 #define LUA_TMPNAMBUFSIZE	L_tmpnam
 #define lua_tmpnam(b,e)		{ e = (tmpnam(b) == NULL); }
@@ -610,7 +641,7 @@ union luai_Cast { double l_d; long l_l; };
 @* the file streams.
 ** CHANGE it if you have a way to implement it in your system.
 */
-#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 2
+#if defined(LUA_USE_POPEN)
 
 #define lua_popen(L,c,m)	popen(c,m)
 #define lua_pclose(L,file)	(pclose(file) != -1)
@@ -639,17 +670,12 @@ union luai_Cast { double l_d; long l_l; };
 ** automatically.  (When you change the makefile to add -ldl, you must
 ** also add -DLUA_USE_DLOPEN.)
 ** If you do not want any kind of dynamic library, undefine all these
-** options (or just remove these definitions).
+** options.
+** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
 */
-#if !defined(LUA_ANSI) 
-#if defined(_WIN32)
-#define LUA_DL_DLL
-#elif defined(__APPLE__) && defined(__MACH__)
-#define LUA_DL_DYLD
-#elif defined(LUA_USE_DLOPEN)
+#if defined(LUA_USE_DLOPEN)
 #define LUA_DL_DLOPEN
 #endif
-#endif
 
 
 /*
@@ -667,6 +693,7 @@ union luai_Cast { double l_d; long l_l; };
 ** extra when a thread is created/deleted/resumed/yielded.
 */
 #define luai_userstateopen(L)		((void)0)
+#define luai_userstateclose(L)		((void)0)
 #define luai_userstatethread(L,L1)	((void)0)
 #define luai_userstatefree(L)		((void)0)
 #define luai_userstateresume(L,n)	((void)0)