#3550: Dynamic libraries don't work on Mac OS/X
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Reporter: StephenBlackheath | Owner: StephenBlackheath
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.11
Severity: major | Resolution:
Keywords: dynamic mac osx | Testcase:
http://upcycle.it/~blackh/ghc/test-case.tar.bz2
Os: MacOS X | Architecture: Unknown/Multiple
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Comment (by StephenBlackheath):
If there's general agreement with the approach, I'll write a patch for the
docs.
Another thing - this line in the patch...
-install-name $(ghclibdir)/`basename "$$@" | sed
's/^libHS//;s/[-]ghc.*//'`/`basename "$$@"`
...is a bit brittle because it second-guesses the behaviour of other
makefiles, so some re-factoring is probably desirable here (assuming you
decide to go with this approach).
---
Some other Mac OS/X issues:
1. The general wisdom of using absolute paths on Mac OS/X: My take on it
is that GHC does things the "Unix way" where it installs into an absolute
location. If you want to package your application up Mac OS/X style
(where the whole directory is required to be moveable), then the developer
needs to make a process for doing that anyway. Perhaps at that point,
they would just add the extra step of modifying all the shipped libraries
to use relative paths (this can be done using a Mac OS/X system utility).
2. You can't run an app (one that has a library and an executable in it)
from the build tree because it wants to use the install location. I don't
know the solution to this, but it's only a minor annoyance mostly, and it
seems to me that it could be dealt with later as a separate issue.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3550#comment:2>
GHC <http://www.haskell.org/ghc/>
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