Define int64_t and use it for return type of flength() to support files >2G

in size (or >4G-1byte depending on how the return value was used).
This is going to trigger a bunch of warnings like this:
conversion from '__int64 ' to 'unsigned long ', possible loss of data
which will be fixed over type (either with typecasts or by supporting 64-bit
file sizes, as the case may be).

src/xpdev/dirwrap.c

@@ -8,7 +8,7 @@
  * @format.tab-size 4		(Plain Text/Source Code File Header)			*
  * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
  *																			*
- * Copyright 2009 Rob Swindell - http://www.synchro.net/copyright.html		*
+ * Copyright 2010 Rob Swindell - http://www.synchro.net/copyright.html		*
  *																			*
  * This library is free software; you can redistribute it and/or			*
  * modify it under the terms of the GNU Lesser General Public License		*
@@ -388,8 +388,9 @@ int DLLCALL setfdate(const char* filename, time_t t)
 
 /****************************************************************************/
 /* Returns the length of the file in 'filename'                             */
+/* or -1 if the file doesn't exist											*/
 /****************************************************************************/
-long DLLCALL flength(const char *filename)
+int64_t DLLCALL flength(const char *filename)
 {
 #if defined(__BORLANDC__) && !defined(__unix__)	/* stat() doesn't work right */
 
@@ -397,7 +398,7 @@ long DLLCALL flength(const char *filename)
 	struct _finddata_t f;
 
 	if(access((char*)filename,0)==-1)
-		return(-1L);
+		return(-1);
 
 	if((handle=_findfirst((char*)filename,&f))==-1)
 		return(-1);
@@ -408,13 +409,21 @@ long DLLCALL flength(const char *filename)
 
 #else 
 
+#ifdef _WIN32
+	struct _stati64 st;
+#else
 	struct stat st;
+#endif
 
 	if(access(filename,0)==-1)
-		return(-1L);
+		return(-1);
 
+#ifdef _WIN32
+	if(_stati64(filename, &st)!=0)
+#else
 	if(stat(filename, &st)!=0)
-		return(-1L);
+#endif
+		return(-1);
 
 	return(st.st_size);
 

src/xpdev/dirwrap.h

@@ -8,7 +8,7 @@
  * @format.tab-size 4		(Plain Text/Source Code File Header)			*
  * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
  *																			*
- * Copyright 2009 Rob Swindell - http://www.synchro.net/copyright.html		*
+ * Copyright 2010 Rob Swindell - http://www.synchro.net/copyright.html		*
  *																			*
  * This library is free software; you can redistribute it and/or			*
  * modify it under the terms of the GNU Lesser General Public License		*
@@ -218,7 +218,7 @@ extern "C" {
 /* General file system wrappers for all platforms and compilers */
 DLLEXPORT BOOL		DLLCALL fexist(const char *filespec);
 DLLEXPORT BOOL		DLLCALL fexistcase(char *filespec);	/* fixes upr/lwr case fname */
-DLLEXPORT long		DLLCALL flength(const char *filename);
+DLLEXPORT int64_t	DLLCALL flength(const char *filename);
 DLLEXPORT time_t	DLLCALL fdate(const char *filename);
 DLLEXPORT int		DLLCALL setfdate(const char* filename, time_t t);
 DLLEXPORT BOOL		DLLCALL	isdir(const char *filename);

src/xpdev/gen_defs.h

@@ -8,7 +8,7 @@
  * @format.tab-size 4		(Plain Text/Source Code File Header)			*
  * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
  *																			*
- * Copyright 2007 Rob Swindell - http://www.synchro.net/copyright.html		*
+ * Copyright 2010 Rob Swindell - http://www.synchro.net/copyright.html		*
  *																			*
  * This library is free software; you can redistribute it and/or			*
  * modify it under the terms of the GNU Lesser General Public License		*
@@ -153,6 +153,14 @@ typedef uchar	uint8_t;
 typedef ushort	uint16_t;
 typedef ulong	uint32_t;
 
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+typedef signed __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+typedef signed long long int int64_t;
+typedef unsigned long long int uint64_t;
+#endif
+
 #endif
 
 /* Legacy 32-bit time_t */