volatile int cp_index = 0;
#endif
-char *hexadecimals = "0123456789ABCDEF";
+const char hexadecimals[] = "0123456789ABCDEF";
int charhex2bin(char c)
{
#include <w32api/windows.h>
#endif
-char *winerror(int err) {
+const char *winerror(int err) {
static char buf[1024], *newline;
if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
extern void bin2hex(char *src, char *dst, int length);
#ifdef HAVE_MINGW
-extern char *winerror(int);
+extern const char *winerror(int);
#define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
#endif