[MacPorts] #52550: ghc-bootstrap: bump to 7.6.3

[MacPorts]

#52550: ghc-bootstrap: bump to 7.6.3
----------------------+--------------------------------
 Reporter:  lists@…   |      Owner:  macports-tickets@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.3.4
 Keywords:  haspatch  |       Port:  ghc-bootstrap
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 Confirmed I am able to compile this for amd64. Unable to test on i386, but
 the comment is untrue.

 {{{
 --->  Fetching archive for ghc-bootstrap
 --->  Attempting to fetch ghc-bootstrap-7.6.3_0.darwin_16.x86_64.tbz2 from
 https://packages.macports.org/ghc-bootstrap
 --->  Attempting to fetch ghc-bootstrap-7.6.3_0.darwin_16.x86_64.tbz2 from
 http://sea.us.packages.macports.org/macports/packages/ghc-bootstrap
 --->  Attempting to fetch ghc-bootstrap-7.6.3_0.darwin_16.x86_64.tbz2 from
 http://mse.uk.packages.macports.org/sites/packages.macports.org/ghc-
 bootstrap
 --->  Fetching distfiles for ghc-bootstrap
 --->  Verifying checksums for ghc-bootstrap
 --->  Extracting ghc-bootstrap
 --->  Configuring ghc-bootstrap
 --->  Building ghc-bootstrap
 --->  Staging ghc-bootstrap into destroot
 --->  Installing ghc-bootstrap @7.6.3_0
 --->  Deactivating ghc-bootstrap @7.6.2_1
 --->  Cleaning ghc-bootstrap
 --->  Activating ghc-bootstrap @7.6.3_0
 --->  Updating database of binaries
 --->  Scanning binaries for linking errors
 --->  No broken files found.
 }}}

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Ticket URL: <https://trac.macports.org/ticket/52550>
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