[GHC] #9521: ghc doesn't pass flags to ld via -optl

[GHC]

#9521: ghc doesn't pass flags to ld via -optl
-------------------------------------+-------------------------------------
              Reporter:              |            Owner:
  MikolajKonarski                    |           Status:  closed
                  Type:  bug         |        Milestone:
              Priority:  normal      |          Version:  7.8.3
             Component:  Compiler    |         Keywords:
            Resolution:  invalid     |     Architecture:  Unknown/Multiple
      Operating System:  Linux       |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by MikolajKonarski):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 I panicked, there is probably no bug. The offending call to /usr/bin/ld is
 done directly by cabal, not by ghc, and so I needed to pass --ld-option as
 well:

 {{{
 cabal install haskell-lexer-1.0 -j1 --ghc-option="-optc-m32" --ghc-
 option="-opta-m32" --ghc-option="-optl-m32" --ld-option="-melf_i386"
 }}}

 This works and so compiling i386 binaries on amd64 Linux finally works for
 me.

 BTW, for completeness, I also had to do

 {{{
 sudo apt-get install libgmp-dev:i386
 }}}

 which unfortunately breaks compilation of amd64 binaries, or hack around
 as follows

 {{{
 sudo ln -s /usr/lib/i386-linux-gnu/libgmp.so.10.0.2 /usr/lib/i386-linux-
 gnu/libgmp.so
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9521#comment:1>
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