[GHC] #8783: make ghc-pwd-bindist script /bin/sh compatible for Solaris

[GHC]

#8783: make ghc-pwd-bindist script /bin/sh compatible for Solaris
-------------------------------------+-------------------------------------
        Reporter:  maeder            |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  normal            |        Milestone:  7.8.1
       Component:  libraries         |          Version:  7.8.1-rc2
  (other)                            |         Keywords:
      Resolution:                    |     Architecture:  Unknown/Multiple
Operating System:  Solaris           |       Difficulty:  Easy (less than 1
 Type of failure:  Building GHC      |  hour)
  failed                             |       Blocked By:
       Test Case:                    |  Related Tickets:
        Blocking:                    |
-------------------------------------+-------------------------------------

Comment (by maeder):

 It works without "$(SHELL)", too:

 {{{
 ...
 mv libffi/build/ltmain.sh libffi/build/ltmain.sh.orig
 sed 's#cmd //c echo "\$1"#cmd /c "echo $1"#' < libffi/build/ltmain.sh.orig
 > libffi/build/ltmain.sh
 cd libffi && \
      \
     cd build && \
     CC=/opt/csw/bin/gcc \
     LD=/usr/ccs/bin/ld \
     AR=/usr/ccs/bin/ar \
     NM=/usr/ccs/bin/nm \
     RANLIB=/usr/ccs/bin/ranlib \
         CFLAGS=" -U__i686 -fno-stack-protector -w" \
         LDFLAGS="  -w" \
         ./configure \
           --prefix=/local/home/maeder/haskell/ghc-7.8.1/libffi/build/inst
 \
 --libdir=/local/home/maeder/haskell/ghc-7.8.1/libffi/build/inst/lib \
           --enable-static=yes \
           --enable-shared=no \
           --host=i386-unknown-solaris2
 configure: WARNING: if you wanted to set the --build type, don't use
 --host.
     If a cross compiler is detected then cross compile mode will be used
 checking build system type... i386-pc-solaris2.10
 checking host system type... i386-unknown-solaris2
 checking target system type... i386-unknown-solaris2
 continue configure in default builddir "./i386-unknown-solaris2"
 ....exec /bin/bash .././configure "--srcdir=.." "--enable-builddir=i386
 -unknown-solaris2" "solaris2"
 configure: WARNING: if you wanted to set the --build type, don't use
 --host.
     If a cross compiler is detected then cross compile mode will be used
 checking build system type... i386-pc-solaris2.10
 checking host system type... i386-unknown-solaris2
 checking target system type... i386-unknown-solaris2
 ...
 }}}

 Note, that now "/bin/bash" is used in the second call (that is somehow
 part of libffi). Yet,
 libffi/build/i386-unknown-solaris2/config.status still contains:

 {{{
 SHELL='/bin/bash'
 }}}

 (So maybe gmp's ./configure is actually less robust wrt to shell
 detection.)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8783#comment:35>
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