Check for predefined strlcpy (as in newer gcc versions)

mxml.h

@@ -5,8 +5,6 @@
 
    Contents:     Header file for mxml.c
 
-   $Id$
-
 \********************************************************************/
 
 /*------------------------------------------------------------------*/

strlcpy.c

@@ -6,8 +6,6 @@
    Contents:     Contains strlcpy and strlcat which are versions of
                  strcpy and strcat, but which avoid buffer overflows
 
-   $Id:$
-
 \********************************************************************/
 
 #include <stdio.h>
@@ -19,6 +17,8 @@
 * will be copied.  Always NUL terminates (unless size == 0).
 * Returns strlen(src); if retval >= siz, truncation occurred.
 */
+#ifndef STRLCPY_DEFINED
+
 size_t strlcpy(char *dst, const char *src, size_t size)
 {
    char *d = dst;
@@ -80,3 +80,5 @@ size_t strlcat(char *dst, const char *src, size_t size)
 }
 
 /*-------------------------------------------------------------------*/
+
+#endif // STRLCPY_DEFINED

strlcpy.h

@@ -5,13 +5,16 @@
 
    Contents:     Header file for strlcpy.c
 
-   $Id$
-
 \********************************************************************/
 
 #ifndef _STRLCPY_H_
 #define _STRLCPY_H_
 
+// some version of gcc have a built-in strlcpy
+#ifdef strlcpy
+#define STRLCPY_DEFINED
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -24,8 +27,10 @@ extern "C" {
 #endif
 #endif
 
+#ifndef STRLCPY_DEFINED
 size_t EXPRT strlcpy(char *dst, const char *src, size_t size);
 size_t EXPRT strlcat(char *dst, const char *src, size_t size);
+#endif
 
 #ifdef __cplusplus
 }