GHC linker error 8.8.4 Windows

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

GHC linker error 8.8.4 Windows

Sumit Raja
Hi,

Suddenly started getting the following linker error after I moved code around in my project. It only seems to occur when I am building one specific cabal test target. When building a dependent build it build successfully but cabal repl test-xxx  fails. I have no consistent way to repro but I will keep trying and file a defect..

GHCi, version 8.8.4: https://www.haskell.org/ghc/  :? for help
GHC runtime linker: fatal error: I found a duplicate definition for symbol
   __gmpn_sec_sqr_itch
whilst processing object file
   C:\Users\sumit\Apps\ghc-8.8.4\mingw\lib\libgmp.dll.a
The symbol was previously defined in
   C:\Users\sumit\Apps\ghc-8.8.4\lib\integer-gmp-1.0.2.0\HSinteger-gmp-1.0.2.0.o
This could be caused by:
   * Loading two different object files which export the same symbol
   * Specifying the same object file twice on the GHCi command line
   * An incorrect `package.conf' entry, causing some object to be
     loaded twice.
ghc.exe: panic! (the 'impossible' happened)
  (GHC version 8.8.4 for x86_64-unknown-mingw32):
        loadArchive "C:\\Users\\sumit\\Apps\\ghc-8.8.4\\mingw\\lib\\libgmp.dll.a": failed

Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug

CallStack (from HasCallStack):
  die', called at .\\Distribution\\Client\\ProjectOrchestration.hs:1041:55 in main:Distribution.Client.ProjectOrchestration
cabal.exe: repl failed for mkr-txn-0.1.0.0-inplace-test-mkr-txn.

Regards
Sumit


_______________________________________________
Haskell-Cafe mailing list
To (un)subscribe, modify options or view archives go to:
http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
Only members subscribed via the mailman list are allowed to post.
Reply | Threaded
Open this post in threaded view
|

Re: GHC linker error 8.8.4 Windows

Sylvain Henry-2

Hi,

On Windows, GHC embeds GMP (the C library) directly into the integer-gmp package. So you mustn't try to link against another libgmp library to avoid duplicated symbol errors (as the one you've got).

It may be that you have a dependency of this specific test (or the test itself) that has the following stanza in its Cabal file: "extra-libraries: gmp"

Regards,
Sylvain


On 17/11/2020 13:20, Sumit Raja wrote:
Hi,

Suddenly started getting the following linker error after I moved code around in my project. It only seems to occur when I am building one specific cabal test target. When building a dependent build it build successfully but cabal repl test-xxx  fails. I have no consistent way to repro but I will keep trying and file a defect..

GHCi, version 8.8.4: https://www.haskell.org/ghc/  :? for help
GHC runtime linker: fatal error: I found a duplicate definition for symbol
   __gmpn_sec_sqr_itch
whilst processing object file
   C:\Users\sumit\Apps\ghc-8.8.4\mingw\lib\libgmp.dll.a
The symbol was previously defined in
   C:\Users\sumit\Apps\ghc-8.8.4\lib\integer-gmp-1.0.2.0\HSinteger-gmp-1.0.2.0.o
This could be caused by:
   * Loading two different object files which export the same symbol
   * Specifying the same object file twice on the GHCi command line
   * An incorrect `package.conf' entry, causing some object to be
     loaded twice.
ghc.exe: panic! (the 'impossible' happened)
  (GHC version 8.8.4 for x86_64-unknown-mingw32):
        loadArchive "C:\\Users\\sumit\\Apps\\ghc-8.8.4\\mingw\\lib\\libgmp.dll.a": failed

Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug

CallStack (from HasCallStack):
  die', called at .\\Distribution\\Client\\ProjectOrchestration.hs:1041:55 in main:Distribution.Client.ProjectOrchestration
cabal.exe: repl failed for mkr-txn-0.1.0.0-inplace-test-mkr-txn.

Regards
Sumit


_______________________________________________
Haskell-Cafe mailing list
To (un)subscribe, modify options or view archives go to:
http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
Only members subscribed via the mailman list are allowed to post.

_______________________________________________
Haskell-Cafe mailing list
To (un)subscribe, modify options or view archives go to:
http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
Only members subscribed via the mailman list are allowed to post.