char *
strconcat(str1, str2, outstr)
	char* str1
	char* str2
	char* outstr = NO_INIT
	PREINIT:
		STRLEN length;
	CODE:
		length = strlen(str1) + strlen (str2) +1;
		New(0, outstr, length, char);
		RETVAL = strconcat(str1, str2, outstr);
	OUTPUT:
		outstr
		RETVAL
	CLEANUP:
		Safefree( outstr );