[Cmake] Autological Makefiles

[John Biddiscombe]

>That is not quite what I suggested.
>default_target:
>   make makefile # first make sure the makefile is up-to-date
>   make all # now rerun make for the all target, if the makefile was

I'm so sorry. I completely didn't understand what you were on about.... 
Having experimented with stuff I've made a discovery (ie I found out what 
you meant)... You can specify the target of the makefile on the command 
line. This is wonderful and now it all works. I can't believe I've lived 
this long (and generated this many makefiles) without realizing that you 
can do this.

Hurrah! Its all working now.

thanks very much

JB