Re: [Fink-devel] llvm-clang/llvm-gcc42/dragonegg-gcc 2.7-1

[Jack H. <ho...@br...>]

On Thu, Apr 29, 2010 at 09:12:35PM -0500, Peter O'Gorman wrote:
> On 04/29/2010 11:39 AM, Jack Howarth wrote:
> >    FYI, I posted packaging for a replacement llvm-clang-2.7-1
> > package (now containing both llvm and clang), llvm-gcc42-2.7-1,
> > and a new dragonegg-gcc-2.7-1 package to fink tracking...
> > 
> > https://sourceforge.net/tracker/?func=detail&aid=2993939&group_id=17203&atid=414256
> > 
> > The dragonegg-gcc package builds dragonegg-gcc45 against the new
> > gcc45-4.5.0-1001 packaging (which provides the necessary
> > gcc45-compiler splitoff). Compiler wrappers are installed with the
> > names de-gcc45. de-g++45, etc to automate the process of invoking
> > the FSF gcc compiler with the llvm dragonegg plugin.
> >                  Jack
> > ps As before, if you want to play with LTO, the most current libLTO.dylib
> > packaged in llvm has to be moved into /usr/lib over the system one.
> > Unfortunately ld expects libLTO in a specific place and I've not puzzled
> > out a way to override this behvior without moving libLTO.dylib.
> 
> Hi Jack
> 
> I haven't had a look at these yet, but had a thought about libLTO.
> 
> If you put it in e.g. /sw/opt/llvm27/lib/libLTO.dylib (dunno where
> you're putting it, just chose this for example's sake), and then have a
> symlink from /sw/opt/llvm27/bin/ld to /usr/bin/ld, then running
> /sw/opt/llvm27/bin/ld should load the LTO library. You can check this
> with ld -v (compare /usr/bin/ld -v and /Developer/usr/bin/ld -v output
> for an example).
> 
> Peter

Peter,
  Actually, I abandoned using --prefix=%p/lib/llvm-%v because it causes
clang to fail to install the symlink for clang++ with the error...

llvm[4]: ======= Finished Linking Release Executable clang (without symbols)
llvm[4]: Installing Release /sw/src/fink.build/root-llvm-clang-2.7-1/sw/lib/llvm-2.7/bin/clang
make[4]: *** No rule to make target `/sw/lib/llvm-2.7/bin', needed by `/sw/src/fink.build/root-llvm-clang-2.7-1/sw/lib/llvm-2.7/bin/clang++'.  Stop.
make[3]: *** [install] Error 1
make[2]: *** [install] Error 1
make[1]: *** [clang/.makeinstall] Error 2
make: *** [install] Error 1

I am attaching a llvm-clang-x86_64.info which uses wrappers for llvm-clang
to find a ld symlink which will use the llvm-2.7 libLTO. This fails to build
with the error above. Any ideas how to fix clang/tools/driver/CMakeLists.txt
to avoid this error?
            Jack