#6063: GHC's build-time ld-flag checks are problematic
------------------------------+---------------------------------------------
Reporter: parcs | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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If the linker that GHC was built against happened to recognize the
`--hash-size` and `--reduce-memory-overhead` flags, but the current system
linker does not, GHC will indiscriminately pass those flags to the current
linker when attempting to link anything, and the linking will fail due to
an 'unrecognized option' error.
I have experienced this behavior when I upgraded to GHC 7.4.1 on debian.
The GHC package in question was built against `bfd ld`, which recognized
those linker flags, but my system linker is `gold`, which does not
recognized those flags. Therefore, I could not build anything until i
reverted to `bfd ld`.
(Relevant commits: 3275b7bd2a803a3adc0b952b6fbfeb738fc15a74 and
9ccb59ed6e5edf73c876e87429e69e8848162497)
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6063>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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