rem: if (*file=='/' || *file=='~' || *file=='$' || !paths) {
add: if (*file=='/' || *file=='~' || *file=='$' || !paths || *paths==0) {
context: wfindfile(char *paths, char *file){    char *path;    char *tmp;    int done;    int len, flen;    char *fullpath;    if (!file)	return NULL;        if (*file=='/' || *file=='~' || *file=='$' || !paths) {	if (access(file, F_OK)<0) {	    fullpath = wexpandpath(file);	    if (!fullpath)		return NULL;	    	    if (access(fullpath, F_OK)<0) {		wfree(fullpath);		return NULL;	    } else {		return fullpath;	    }	} else {	    return wstrdup(file);	}    }    flen = strlen(file);    tmp = paths;    done = 0;    while (!done) {	len = strcspn(tmp, ":");	if (len==0) done=1;	path = wmalloc(len+flen+2);	path = memcpy(path, tmp, len);	path[len]=0;	strcat(path, "/");	strcat(path, file);	fullpath = wexpandpath(path);	wfree(path);	if (fullpath) {	    if (access(fullpath, F_OK)==0) {		return fullpath;	    }	    wfree(fullpath);	}	tmp=&(tmp[len+1]);	if (*tmp==0) break;    }    return NULL;}