[LLVMdev] Trouble Building llvm-gcc-4.2

[David Greene]

On Wednesday 10 December 2008 12:18, Török Edwin wrote:
> On 2008-12-10 19:54, David Greene wrote:
> > I'm almost finished with the BuildBot validation config, but I'm having
> > trouble convincing it to compiler llvm-gcc-4.2.
> >
> > Here's the relevant portion of the config:
> >
> >   f.addStep(SVN(workdir="llvm-gcc-4.2/src", mode='clobber',
> > baseURL='http://llvm.org/svn/llvm-project/llvm-gcc-4.2/',
> > defaultBranch='trunk'))
> >   checking=""
> >   if optimized == "--disable-optimized":
> >     checking="--enable-checking"
> >   f.addStep(Configure(workdir="llvm-gcc-4.2/obj",
> > command=["../src/configure", WithProperties("--prefix=%s/install",
> > "absbuilddir"),
>
> Are you sure buildbot provides absbuilddir?

Yes, I wrote a BuildStep to compute it.  I know it picks it up because the 
error used to tell me to provide an absolute path.  That happened during
the configure stage.

> > The initial configure of llvm-gcc-4.2 works just fine.  It's the actual
> > build that fails, when the configure is done is subdirectories as part of
> > "make bootstrap."
> >
> > Any hints?
>
> How does the configure line actually look like? (stdio output)

The initial configure runs as:

./src/configure 
--prefix=/ptmp/dag/buildbot/slaves/llvm-validate/llvm-validate-debug-x86_64-linux/build/install 
--program-prefix=llvm- 
--enable-llvm=/ptmp/dag/buildbot/slaves/llvm-validate/llvm-validate-debug-x86_64-linux/build/build-llvm-initial/obj 
--enable-languages=c,c++ --enable-checking
 
During the build stage, make outputs:

Configuring stage 1 in ./gcc
configure: loading cache ./config.cache
[lots of checking messages...]
checking for dsymutil... no
dsymutil is not available
configure: error: You must specify valid path to your LLVM tree with 
--enable-llvm=DIR

                                                   -Dave