[GHC] #9620: libffi.a is put in the wrong folder

[GHC]

#9620: libffi.a is put in the wrong folder
-------------------------------------+-------------------------------------
       Reporter:  rezb1t             |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:  7.10.1
      Component:  Build System       |                 Version:  7.9
       Keywords:  libffi lib64       |        Operating System:  Linux
  nixos                              |         Type of failure:  Building
   Architecture:  Unknown/Multiple   |  GHC failed
     Difficulty:  Unknown            |               Test Case:
     Blocked By:                     |                Blocking:
Related Tickets:                     |  Differential Revisions:
-------------------------------------+-------------------------------------
 This is dfeuer's error message, but it is equivalent to mine on NixOS
 x86_64

 {{{
 "/home/dfeuer/GHC/7.8.3.bin/bin/ghc" -o
 utils/genapply/dist/build/tmp/genapply -hisuf hi -osuf  o -hcsuf hc
 -static  -O -H64m -package pretty -package-db libraries/bootstrapping.conf
 -i -iutils/genapply/. -iutils/genapply/dist/build
 -iutils/genapply/dist/build/autogen -Iutils/genapply/dist/build
 -Iutils/genapply/dist/build/autogen         -no-user-package-db -rtsopts
 -odir utils/genapply/dist/build -hidir utils/genapply/dist/build -stubdir
 utils/genapply/dist/build    -static  -O -H64m -package pretty -package-db
 libraries/bootstrapping.conf   -i -iutils/genapply/.
 -iutils/genapply/dist/build -iutils/genapply/dist/build/autogen
 -Iutils/genapply/dist/build -Iutils/genapply/dist/build/autogen
 -no-user-package-db -rtsopts      utils/genapply/dist/build/GenApply.o
 libffi/stamp.ffi.static-shared.install exists, but
 libffi/build/inst/lib/libffi.a does not.
 Suggest removing libffi/stamp.ffi.static-shared.install.
 make[1]: *** [libffi/build/inst/lib/libffi.a] Error 1
 make[1]: *** Waiting for unfinished jobs....
 make: *** [all] Error 2
 }}}

 libffi.a is build and linked into libffi/build/inst/lib64 instead of
 libffi/build/inst/lib, but the includes and pkg-config specific stuff is
 still put into libffi/build/inst/lib. GHC looks in lib for libffi.a and
 fails, the current workaround is to copy the contents of
 libffi/build/inst/lib64 into libffi/build/inst/lib and type make again.
 Symlinking won't work because libffi seems to sanitize the build directory
 before building the library

 I'd like to note that when compiling via the Debian source snapshot,
 libffi is put in the correct place if I run ./configure without using perl
 boot.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9620>
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