[fpc-pascal] When is make cycle needed?

[Michael Van Canneyt]

On Mon, 4 Jun 2007, Francisco Reyes wrote:

> Reading the docs I see there is a "make cycle" target, but I am not sure when
> it is necessary.

Whenever the compiler changes.

It's to make sure that a compiler change does not cause any errors:
the changed compiler (ppc1) must generate a compiler binary (ppc2)
which is then used to create another compiler binary (ppc3) - the 
last 2 binaries must be exactly equal.

Michael