clang build error

Clang Frontend
#1

Hi!
Unfortunately clang svn trunk does not compile on my 32 bit x86 arch linux with gcc 4.3.3.
Here is the error output.

Output:
Scanning dependencies of target clangAST
[ 87%] Building CXX object tools/clang/lib/AST/CMakeFiles/clangAST.dir/ASTContext.cpp.o
[ 87%] Building CXX object tools/clang/lib/AST/CMakeFiles/clangAST.dir/CFG.cpp.o
/media/disk/download/llvm/svn/llvm/tools/clang/include/clang/AST/Stmt.h: In member function ‘clang::CFGBlock*::CFGBuilder::WalkAST(clang::Stmt*, bool)’:
/media/disk/download/llvm/svn/llvm/tools/clang/include/clang/AST/Stmt.h:113: error: ‘static void clang::Stmt::operator delete(void*)’ is protected
/media/disk/download/llvm/svn/llvm/tools/clang/lib/AST/CFG.cpp:391: error: within this context
make[2]: *** [tools/clang/lib/AST/CMakeFiles/clangAST.dir/CFG.cpp.o] Error 1
make[1]: *** [tools/clang/lib/AST/CMakeFiles/clangAST.dir/all] Error 2
make: *** [all] Error 2

#2

Interesting. I’m not seeing that. Is there a ‘delete’ on line 391 of CFG.cpp? I see an allocation, but no delete. I suppose the ‘delete’ can be triggered if the allocation fails, but (I believe) this should only occur with exceptions enabled (which we normally don’t compile LLVM or clang with).

#3

This could also be due to our difference in gcc versions. I’m using gcc-4.2. I’m surprised, however, that operates new/delete would be treated differently by these two versions of the compiler.

#4

Incidentally, if you make ‘delete’ non-private (or simply remove it from Stmt), does the error go away? I’m surprised that only that particular site is failing. What happens if you do “make -i”? Do you see the same error over and over?

#5

I think I have the fix, but I don’t have GCC 4.3.3 easily available to test. Could you try the attached patch?

  • Doug

operator-delete.patch (620 Bytes)