[LLVMdev] which g++ to compile LLVM CVS on Linux/AMD64?

[Reid Spencer]

Basile,

On Thu, 3 May 2007 18:41:52 +0200
 Basile STARYNKEVITCH <basile at starynkevitch.net> wrote:
>Le Thu, May 03, 2007 at 09:36:22AM -0700, Chris Lattner écrivait/wrote:
>> On Thu, 3 May 2007, Basile STARYNKEVITCH wrote:
>> >
>> 
>> > FWIW, the latest gcc snapshot from yesterday gcc version 4.3.0 20070501
>> > (experimental) fail to compile latest LLVM (with compile errors!).
>> 
>> Please file an llvm bug report with these errors.  It may be that we are 
>> doing something illegal in C++  that is only now getting caught.  If the 
>> source is valid and G++ is incorrectly complaining, please file a bug 
>> against GCC.
>> 
>
>I'm sorry to reply on the list (but I failed even waiting 15 minutes to get
>a mailed password from the LLVM bugzilla system).
>
>
>With the latest CVS and with ./configure CXX=g++-snap where 
>g++-snap is yesterday's GCC trunk :
>g++-snap -v
>Using built-in specs.
>Target: x86_64-unknown-linux-gnu
>Configured with: ../configure --disable-multilib --program-suffix=-snap --enable-languages=c,c++
>Thread model: posix
>gcc version 4.3.0 20070501 (experimental)
>
>I am getting the following errors
>
>llvm[1]: Building Debug Archive Library libLLVMSystem.a
>make[1]: Leaving directory `/usr/src/Lang/llvm/lib/System'
>make[1]: Entering directory `/usr/src/Lang/llvm/lib/Support'
>llvm[1]: Compiling APInt.cpp for Debug build
>In file included from /usr/src/Lang/llvm/include/llvm/Type.h:14,
>                 from /usr/src/Lang/llvm/include/llvm/DerivedTypes.h:21,
>                 from APInt.cpp:17:
>/usr/src/Lang/llvm/include/llvm/AbstractTypeUser.h:19:51: error: missing terminating ' character

This is likely a bug in gcc. Its not liking ' in a #error pragma .. go figure.

I fixed this by removing the ' 



>In file included from APInt.cpp:16:
>/usr/src/Lang/llvm/include/llvm/ADT/APInt.h:1041: warning: type qualifiers ignored on function return type
>/usr/src/Lang/llvm/include/llvm/ADT/APInt.h:1047: warning: type qualifiers ignored on function return type

These two are bugs in your compiler.

>In file included from APInt.cpp:17:
>/usr/src/Lang/llvm/include/llvm/DerivedTypes.h: In member function 'virtual void llvm::OpaqueType::refineAbstractType(const llvm::DerivedType*, const llvm::Type*)':
>/usr/src/Lang/llvm/include/llvm/DerivedTypes.h:412: error: 'abort' was not declared in this scope

This is either a bug in the compiler or a difference in <cassert> which is included in DerivedTypes.h via AbstractTypeUser.h.

>/usr/src/Lang/llvm/include/llvm/DerivedTypes.h: In member function 'virtual void llvm::OpaqueType::typeBecameConcrete(const llvm::DerivedType*)':
>/usr/src/Lang/llvm/include/llvm/DerivedTypes.h:415: error: 'abort' was not declared in this scope
>
>
>Hope that this could help someone. I really don't know if it is a bug in GCC
>(tuesday's SVN snapshot) or in LLVM (today's CVS snapshot)

I would try using a different GCC (4.0.X works well).

Reid.


>
>Regards.
>-- 
>Basile STARYNKEVITCH         http://starynkevitch.net/Basile/ 
>email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 
>8, rue de la Faïencerie, 92340 Bourg La Reine, France
>*** opinions {are only mines, sont seulement les miennes} ***
>_______________________________________________
>LLVM Developers mailing list
>LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev