[LLVMdev] llvm-gcc fails to build on REL5.1 Linux and Intel x86_64

[Yabin Hu]

Thanks a lot!

2009/3/4 Duncan Sands <baldrick at free.fr>

> Hi,
>
> >  While attempting to compile llvm-gcc on Intel x86_64 2-way 4-core
> machine,
> > i got the following errors:
>
> this is the second report of this, see
> http://llvm.org/bugs/show_bug.cgi?id=3710
>
> > gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)
>
> gcc 4.1 has endless problems compiling LLVM, see
> http://llvm.org/docs/GettingStarted.html#brokengcc
>
> Here's an extract:
>
> GCC 4.1.1: GCC fails to build LLVM with template concept check errors
> compiling some files. At the time of this writing, GCC mainline (4.2) did
> not share the problem.
> GCC 4.1.1 on X86-64/amd64: GCC  miscompiles portions of LLVM when compiling
> llvm itself into 64-bit code. LLVM will appear to mostly work but will be
> buggy, e.g. failing portions of its testsuite.
> GCC 4.1.2 on OpenSUSE: Seg faults during libstdc++ build and on x86_64
> platforms compiling md5.c gets a mangled constant.
> GCC 4.1.2 (20061115 (prerelease) (Debian 4.1.1-21)) on Debian: Appears to
> miscompile parts of LLVM 2.4. One symptom is ValueSymbolTable complaining
> about symbols remaining in the table on destruction.
> GCC 4.1.2 20071124 (Red Hat 4.1.2-42): Suffers from the same symptoms as
> the previous one. It appears to work with ENABLE_OPTIMIZED=0 (the default).
>
> Try building with gcc-4.2 or newer.
>
> Ciao,
>
> Duncan.
>
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