[MacPorts] #54787: Don't install dependencies of packages that can't be installed

[MacPorts]

#54787: Don't install dependencies of packages that can't be installed
-------------------------+-------------------
 Reporter:  akimd        |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:  2.4.1
 Keywords:               |       Port:
-------------------------+-------------------
 Hi!

 {{{
 $ sudo port install pdftk
 Password:
 --->  Computing dependencies for pdftk
 The following dependencies will be installed:
  gcc47
  glpk
  ppl
 Continue? [Y/n]:
 --->  Fetching archive for glpk
 --->  Attempting to fetch glpk-4.63_0.darwin_16.x86_64.tbz2 from
 http://lil.fr.packages.macports.org/glpk
 --->  Attempting to fetch glpk-4.63_0.darwin_16.x86_64.tbz2.rmd160 from
 http://lil.fr.packages.macports.org/glpk
 --->  Installing glpk @4.63_0
 --->  Activating glpk @4.63_0
 --->  Cleaning glpk
 --->  Fetching archive for ppl
 --->  Attempting to fetch ppl-1.2_0.darwin_16.x86_64.tbz2 from
 http://lil.fr.packages.macports.org/ppl
 --->  Attempting to fetch ppl-1.2_0.darwin_16.x86_64.tbz2.rmd160 from
 http://lil.fr.packages.macports.org/ppl
 --->  Installing ppl @1.2_0
 --->  Activating ppl @1.2_0
 --->  Cleaning ppl
 --->  Fetching archive for gcc47
 --->  Attempting to fetch gcc47-4.7.4_8.darwin_16.x86_64.tbz2 from
 http://lil.fr.packages.macports.org/gcc47
 --->  Attempting to fetch gcc47-4.7.4_8.darwin_16.x86_64.tbz2.rmd160 from
 http://lil.fr.packages.macports.org/gcc47
 --->  Installing gcc47 @4.7.4_8
 --->  Activating gcc47 @4.7.4_8
 --->  Cleaning gcc47
 --->  Fetching archive for pdftk
 --->  Attempting to fetch pdftk-2.02_0+gcc47.darwin_16.x86_64.tbz2 from
 http://lil.fr.packages.macports.org/pdftk
 --->  Attempting to fetch pdftk-2.02_0+gcc47.darwin_16.x86_64.tbz2 from
 http://mse.uk.packages.macports.org/sites/packages.macports.org/pdftk
 --->  Attempting to fetch pdftk-2.02_0+gcc47.darwin_16.x86_64.tbz2 from
 https://packages.macports.org/pdftk
 --->  Fetching distfiles for pdftk
 Error: pdftk currently does not build on OS X 10.11 or greater.
 Error: See https://trac.macports.org/ticket/48528
 Error: Failed to fetch pdftk: incompatible OS X version
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_textproc_pdftk/pdftk/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 Error: Processing of port pdftk failed
 }}}

 Now I have to uninstall these dependencies.

--
Ticket URL: <https://trac.macports.org/ticket/54787>
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