Fix #68: Use -O1 when compiling with gcc now
As reported gcc 8.1.1 can't produce a working lisp. gcc 8.3.1 also fails. But as reported on cmucl-imp, 2019-04-08, by Juan Pablo Hierro Alverez, -O1 works.
Use -O1.
As reported gcc 8.1.1 can't produce a working lisp. gcc 8.3.1 also fails. But as reported on cmucl-imp, 2019-04-08, by Juan Pablo Hierro Alverez, -O1 works.
Use -O1.