Executables got bigger using dynamic link.

[Magicloud Magiclouds]

Hi,
  I set "shared: True" in ~/.cabal/config, and using ghc 7.6.1. Then
clear user space hackages and reinstall them.
  First of all, I think comparing to static link, dynamic linked
executables file should be smaller. And the libraries (.so) could
benefits from caching to save memory usage.

  Well, I installed cabal-install and alex. I got this:
cabal 9.9M -> 24M
alex 2.7M -> 5.1M
  Is this correct?
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