I hav a module that depends upon (binds to) the microsoft uuid.lib
(libuuid.a) this is a static library which exports some labels such as
IID_IPersistFile. I was playing around with trying to get it to work both
with normal compiling via ghc and to dynamically load in ghci. As we know,
ghci can't load static libraries and so was not able to resolve the linkage.
I therefore decided to directly incorporate the objects of (libuuid.a) into
the haskell .a and ghci .o file (ghci) . To do this I needed to
ject --whole-archive libuuid.a --no-whole-archive (or alternatively the
list of objects) into the link command at an appropriate point to enable the
resolution of the linkage.
I have achieved my goal but only by constructing the list of objects to link
entirely manually, constructing both the .a and .o for the haskell library
manually. I am not satisfied with this solution as it is fragile wrt changes
in the module structure of the library I have constructed.
jvl
- Original Message -
From: Simon Marlow marlo...@gmail.com
To: John Lask jvl...@hotmail.com
Cc: glasgow-haskell-users@haskell.org
Sent: Monday, June 01, 2009 9:15 PM
Subject: Re: ghc - force library search order
On 29/05/2009 15:19, John Lask wrote:
- Original Message - From: Duncan Coutts
duncan.cou...@worc.ox.ac.uk
To: John Lask jvl...@hotmail.com
Sent: Friday, May 29, 2009 8:09 PM
Subject: Re: [Haskell-cafe] ghc - force library search order
On Fri, 2009-05-29 at 18:08 +1000, John Lask wrote:
I need to force a library to be searched for unresolved symbols after
all
other libraries have been searched, and I would rather not resort to
constructing the linker command line directly. Is there a way to do
this?
i.e. I want for example -lfoo to appear after all other haskell
libraries
and before system libraries (for example -lmsvcrt) once ghc has
constructed
the link command. i.e. how is it possible to coerce ghc into respecting
dependencies between the libraries. GHC does a good job in general with
native libraries, but there are allways corner cases.
I have a feeling this is not possible, but it dosn't hurt to ask.
No, there's currently no way to inject flags that come *after* the linker
flags for the packages on the linker command line.
It might help if you describe at a higher level what it is you're trying
to do. There might be a better way to achieve it.
Cheers,
Simon
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