How to interrupt emerge?

[creaker]

Hi!
I want to interrupt package installing when sources was unpacked into /var/tmp/portage, make some changes in source files and continue installation. Is it possible 'on-the-fly'? Or should I repack package, replace original with repacked and run emerge again?

[massimo]

Use ebuild foo-1.0 unpack, ebuild foo-1.0 compile ... man ebuild. I.e., after unpacking you can modify files and then do the compile etc.
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Hello 911? How are you?

[creaker]

It works!
Many thanks!

[peter4]

If it's not a really small, almost instantly building package I just do ctrl+z after unpacking, modify files, and use 'fg' to resume build.