I am unable to build llvm-2.7 or llvm-2.8 svn with the gcc-4.3.2 that comes with OpenSolaris. $ uname -a SunOS opensolaris 5.11 snv_111b i86pc i386 i86pc Solaris $ gcc-4.3.2 --version gcc-4.3.2 (GCC) 4.3.2 Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. llvm-2.7 $ make ... llvm[1]: Compiling BasicBlock.cpp for Release build /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h: In member function ‘bool __gnu_cxx::_EqualOpConcept<_First, _Second>::__constraints_() [with _First = llvm::BasicBlock, _Second = llvm::BasicBlock*]’: /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:296: instantiated from ‘void __gnu_cxx::_EqualOpConcept<_First, _Second>::__constraints() [with _First = llvm::BasicBlock, _Second = llvm::BasicBlock*]’ /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:62: instantiated from ‘void __gnu_cxx::__function_requires() [with _Concept = __gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>]’ /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/stl_algo.h:3810: instantiated from ‘_IIter std::find(_IIter, _IIter, const _Tp&) [with _IIter = llvm::PredIterator<llvm::BasicBlock, llvm::value_use_iterator<llvm::User> >, _Tp = llvm::BasicBlock*]’ BasicBlock.cpp:181: instantiated from here /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:296: error: no match for ‘operator==’ in ‘((__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>*)this)->__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>::__a == ((__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>*)this)->__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>::__b’ llvm-2.7/include/llvm/ADT/APInt.h:1448: note: candidates are: bool llvm::operator==(uint64_t, const llvm::APInt&) llvm-2.7/include/llvm/ADT/StringRef.h:400: note: bool llvm::operator==(llvm::StringRef, llvm::StringRef) make[1]: *** [llvm-2.7/lib/VMCore/Release/BasicBlock.o] Error 1 make[1]: Leaving directory `llvm-2.7/lib/VMCore' llvm-2.8 svn $ make ... llvm[1]: Compiling BasicBlock.cpp for Debug+Asserts build /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h: In member function ‘bool __gnu_cxx::_EqualOpConcept<_First, _Second>::__constraints_() [with _First = llvm::BasicBlock, _Second = llvm::BasicBlock*]’: /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:296: instantiated from ‘void __gnu_cxx::_EqualOpConcept<_First, _Second>::__constraints() [with _First = llvm::BasicBlock, _Second = llvm::BasicBlock*]’ /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:62: instantiated from ‘void __gnu_cxx::__function_requires() [with _Concept = __gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>]’ /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/stl_algo.h:3810: instantiated from ‘_IIter std::find(_IIter, _IIter, const _Tp&) [with _IIter = llvm::PredIterator<llvm::BasicBlock, llvm::value_use_iterator<llvm::User> >, _Tp = llvm::BasicBlock*]’ BasicBlock.cpp:192: instantiated from here /usr/lib/gcc/i386-pc-solaris2.11/4.3.2/../../../../include/c++/4.3.2/bits/boost_concept_check.h:296: error: no match for ‘operator==’ in ‘((__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>*)this)->__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>::__a == ((__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>*)this)->__gnu_cxx::_EqualOpConcept<llvm::BasicBlock, llvm::BasicBlock*>::__b’ llvm/include/llvm/ADT/APInt.h:1512: note: candidates are: bool llvm::operator==(uint64_t, const llvm::APInt&) llvm-2.8-svn/llvm/include/llvm/ADT/StringRef.h:404: note: bool llvm::operator==(llvm::StringRef, llvm::StringRef) make[1]: *** [llvm/lib/VMCore/Debug+Asserts/BasicBlock.o] Error 1 make[1]: Leaving directory `llvm-2.8-svn/llvm/lib/VMCore'