libsigc++ for the Hurd

[Daniel Burrows <Daniel_Burrows@brown.edu>]

  I decided to try porting libsigc++ to the hurd, just to see if it would be
easy.

  The result was actually quite impressive -- it built perfectly without
modifications, and works at least well enough to compile and run the
ultra-alpha aptitude UI code that's based on it.  (I guess this shouldn't
be surprising, as it's not very OS-dependant; I was just a little worried
about its memory-management and especially its threading behavior)

  I've uploaded packages to incoming.  Hopefully I got the porter-build
stuff right (I'm afraid I may have not done the right thing with the
lftp upload..)

  Daniel

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/----------------- Daniel Burrows <Daniel_Burrows@brown.edu> -----------------\
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