[LLVMdev] cfrontend building

[Chris Lattner]

On Mon, 8 Aug 2005, Stephan Wienczny wrote:
> Hallo,
> I'm trying to write an gentoo ebuild for the c frontend. When make runs
> libstdc++/configure I get some problems:
> configure tries to determine the object extensionbut fails. This is the
> output:
>
> checking host system type... i686-pc-linux-gnu
> checking target system type... i686-pc-linux-gnu
> checking for a BSD-compatible install... checking for perl... perl
> checking build system type... i686-pc-linux-gnu
> checking host system type... /bin/install -c
> checking whether build environment is sane... i686-pc-linux-gnu
> checking for i686-pc-linux-gnu-ar... i686-pc-linux-gnu-ar
> checking for i686-pc-linux-gnu-ranlib... i686-pc-linux-gnu-ranlib
> checking for
> i686-pc-linux-gnu-gcc...  /var/tmp/portage/llvm-gcc-1.5/work/cfrontend/build/gcc/xgcc
> -B/var/tmp/portage/llvm-gcc-1.5/work/cfrontend/build/gcc/
> -B/usr/i686-pc-linux-gnu/bin/ -B/usr/i686-pc-linux-gnu/lib/
> -isystem /usr/i686-pc-linux-gnu/include
> -isystem /usr/i686-pc-linux-gnu/sys-include
> checking for suffix of object files... configure: error: cannot compute suffix
> of object files: cannot compile
> See `config.log' for more details.
> make: *** [configure-target-libiberty] Fehler 1
> make: *** Warte auf noch nicht beendete Prozesse...
>
> The config.log does not help. I think there might be some problem with the
> xgcc... Do you have an idea what could be wrong?

I have never seen this, and don't really have any ideas.  What configure 
options did you use?  Did you follow the directions here?

http://llvm.cs.uiuc.edu/docs/CFEBuildInstrs.html

-Chris

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