[LLVMdev] "has different visibility" warnings

[Talin]

Recently I started getting these warnings - thousands of them - and I'm 
not sure what I did to cause them or how to solve them:

ld: warning llvm::MemoryBuffer::getBufferStart() const has different 
visibility (1) in /usr/local/lib/libLLVMSupport.a(MemoryBuffer.o) and 
(2) in /usr/local/lib/libLLVMSupport.a(CommandLine.o)
ld: warning 
llvm::OwningPtr<llvm::MemoryBuffer>::OwningPtr(llvm::MemoryBuffer*)has 
different visibility (1) in 
/usr/local/lib/libLLVMSupport.a(MemoryBuffer.o) and (2) in 
/usr/local/lib/libLLVMSupport.a(CommandLine.o)
ld: warning 
llvm::OwningPtr<llvm::MemoryBuffer>::OwningPtr(llvm::MemoryBuffer*)has 
different visibility (1) in 
/usr/local/lib/libLLVMSupport.a(MemoryBuffer.o) and (2) in 
/usr/local/lib/libLLVMSupport.a(CommandLine.o)
ld: warning llvm::OwningPtr<llvm::MemoryBuffer>::~OwningPtr()has 
different visibility (1) in 
/usr/local/lib/libLLVMSupport.a(MemoryBuffer.o) and (2) in 
/usr/local/lib/libLLVMSupport.a(CommandLine.o)
ld: warning llvm::OwningPtr<llvm::MemoryBuffer>::~OwningPtr()has 
different visibility (1) in 
/usr/local/lib/libLLVMSupport.a(MemoryBuffer.o) and (2) in 
/usr/local/lib/libLLVMSupport.a(CommandLine.o)
ld: warning llvm::APInt::isSingleWord() consthas different visibility 
(2) in /usr/local/lib/libLLVMTarget.a(TargetData.o) and (1) in 
/usr/local/lib/libLLVMSupport.a(APFloat.o)
ld: warning llvm::APInt::isSingleWord() consthas different visibility 
(2) in /usr/local/lib/libLLVMCore.a(Instructions.o) and (1) in 
/usr/local/lib/libLLVMSupport.a(APFloat.o)
ld: warning llvm::APInt::getNumWords() consthas different visibility (2) 
in /usr/local/lib/libLLVMCore.a(Instructions.o) and (1) in 
/usr/local/lib/libLLVMSupport.a(APFloat.o)
ld: warning llvm::APInt::clearUnusedBits()     has different visibility 
(2) in /usr/local/lib/libLLVMCore.a(Instructions.o) and (1) in 
/usr/local/lib/libLLVMSupport.a(APFloat.o)

(and so on...) Any suggestions?

-- Talin