Do not use pthread_setname_np() if we don't have GLIBC or Android.
Do not use pthread_setname_np() if we don't have GLIBC or Android.

Summary:
pthread_setname_np() is a nonstandard GNU extension and isn't available
in every C library. Check before it's usage that GLIBC is available or
that we are targeting Android.

Reviewers: clayborg, ovyalov

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13019

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@248280 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb