Fix PR3855. When we encounter an incompatible redeclaration of a
library function, accept this declaration and pretend that we do not
know that this is a library function. autoconf depends on this
(broken) behavior.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67541 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed