diff -r chktex-1.6.4/FindErrs.c chktex-1.6.4-work/FindErrs.c
186a187,195
> static void ShiftLeftOne(char *Buf)
> {
>     char *P;
> 
>     for (P = Buf + 1; *P; ++P)
>       *(P - 1) = *P;
>     *(P - 1) = '\0';
> }
> 
221c230,239
<             strcpy(OrigDest, OrigDest + 1);
---
> 	    /* According to strcpy(3): The strings may not overlap
> 	       So the following call:
> 
> 	          strcpy(OrigDest, OrigDest + 1);
> 
> 	       is undefined, and it DOES produce errors in new versions
> 	       of glibc (checked on glibc-2.12.2).
> 
> 	       Call safe version. */
>    	    ShiftLeftOne(OrigDest);