[GHC] #16231: GHCi under powershell fails to find libgmp-10.dll when built with hadrian.

[GHC]

#16231: GHCi under powershell fails to find libgmp-10.dll when built with hadrian.
-------------------------------------+-------------------------------------
        Reporter:  AndreasK          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:
       Component:  Build System      |              Version:  8.6.3
  (Hadrian)                          |
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHCi crash        |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by Phyx-):

 * priority:  normal => high


Comment:

 No, it's affecting all shells, the only reason it "works" in msys is
 because msys2 has it's own copy of `libgmp-10.dll` which it puts on the
 PATH.

 But this gmp is there for GCC's use not GHC, on Windows `gmp` is supposed
 to be statically linked using `libraries/integer-gmp_CONFIGURE_OPTS +=
 --configure-option=--with-intree-gmp` which Make sets.

 TL;DR: Hadrian builds integer-gmp incorrectly.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16231#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler