* Ensure #includes are wrapped with appropriate HAVE_ guards
* Account for variations in time.h and sys/time.h inclusion.
* Add macros for getting wait(2) exit status correctly (per autoconf sugg.)
* Implement ThrowErrno in terms of strerror_r, strerror or none based on
  what is available on the platform.

llvm-svn: 19161

llvm-svn: 18626

llvm-svn: 17783

llvm-svn: 16686

llvm-svn: 16685

Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137

configuration calls. Right now this just contains PreventCoreFiles so that
bugpoint can by platform independent.

llvm-svn: 16124

llvm-svn: 16118

Fix the banner length.

llvm-svn: 16086

llvm-svn: 16048