Subtleties of Modifying post-configure

[Steven Smith]

I need to run some post-configure steps in a cmake Portfile.

I’m running into two these issues:

Issue 1:

cmake already has some post-configure code. How do I add stuff to whatever cmake already has? Not post-configure-append, I see. Not {*}${post-configure}. I don’t know enough of the guts of MacPorts tcl to know which approach should be used. 

Issue 2:

If I change post-configure in an `if` block, the change doesn’t hold. Why doesn’t this work?

post-configure {
     awesome_tcl_proc
}

if {${name} eq ${subport}} {
    # don’t run awesome tcl proc
    post-configure {}
}

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