[GHC] #13325: Binary distributions produced from cross-compiled stage2 are broken

23 Feb 2017

      #13325: Binary distributions produced from cross-compiled stage2 are broken
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.4.1
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:  #8910
Differential Rev(s):                 |         Wiki Page:
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 The binary distribution by a cross-compiled build (e.g. configure with
 `./configure --target=$cross_target`) is broken out of the box.

 After untarring and configuring the bindist, `make install` fails due to
 missing files,
 {{{
 # make install
 make --no-print-directory -f ghc.mk install BINDIST=YES
 NO_INCLUDE_DEPS=YES
 ghc.mk:742: utils/ghctags/ghc.mk: No such file or directory
 ghc.mk:742: utils/check-api-annotations/ghc.mk: No such file or directory
 ghc.mk:742: utils/check-ppr/ghc.mk: No such file or directory
 make[1]: *** No rule to make target 'utils/check-ppr/ghc.mk'.  Stop.
 Makefile:51: recipe for target 'install' failed
 make: *** [install] Error 2
 }}}

 This can be worked around by,
 {{{
 $ mkdir utils/ghctags utils/check-ppr utils/check-api-annotations
 $ touch utils/hp2ps/dist/build/tmp/hp2ps \
         utils/ghctags/ghc.mk \
         utils/check-api-annotations/ghc.mk \
         utils/check-ppr/ghc.mk
 }}}

 I believe the reason for this is that these are utilities which would
 typically be built by the stage2 compiler, which we obviously are unable
 to build.

 There are a few options for fixing this,

  * Produce a shell script throwing an error to sit in place of the
 unbuildable utilities
  * Fix the build system to include the appropriate `ghc.mk` files in the
 bindist, despite the utilities they build not being present
  * Include the sources for the utilities in the bindist and teach `make
 install` to build them

--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13325
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