Ticket #6063 (patch bug)
GHC's build-time ld-flag checks are problematic
|Reported by:||parcs||Owned by:||thoughtpolice|
|Type of failure:||GHC doesn't work at all||Difficulty:||Unknown|
|Test Case:||Blocked By:|
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)