Change interface to Path class:
readable -> canRead
writable -> canWrite
executable -> canExecute

More (incremental) changes coming to close 495.

llvm-svn: 22345

configure seems to find it on Cygwin but linking against it fails.

llvm-svn: 22189

llvm-svn: 22081

llvm-svn: 21704

llvm-svn: 21453

llvm-svn: 21422

methods that were recently added to the interface.

llvm-svn: 21401

Standardize the error messages to be in "path: what failed: why" format.
Also attempt to use the correct errno to ThrowErrno in situations where
the errno value is erased by subsequent system calls.

llvm-svn: 21385

Allow the ThrowErrno function to optionally accept an error number
parameter so that callers can specify the error number to be used.

llvm-svn: 21384

result in returning executable files that won't be runnable.

llvm-svn: 21378

Patch by Markus Oberhumer.

llvm-svn: 21377

Thanks to Markus Oberhumer for the patch!

llvm-svn: 21370

llvm-svn: 21216

llvm-svn: 20397

llvm-svn: 20256

llvm-svn: 20255

llvm-svn: 20243

llvm-svn: 20237

llvm-svn: 20208

llvm-svn: 20184

llvm-svn: 20170

This causes garbage to be printed out after error messages.

llvm-svn: 20165

llvm-svn: 19852

llvm-svn: 19746

llvm-svn: 19605

llvm-svn: 19563

llvm-svn: 19545

llvm-svn: 19544

gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

llvm-svn: 19426

on 64-bit Windows.

llvm-svn: 19393

llvm-svn: 19254

console or not.

llvm-svn: 19236

console or not.

llvm-svn: 19233

llvm-svn: 19203

llvm-svn: 19202

llvm-svn: 19201

llvm-svn: 19199

llvm-svn: 19198

llvm-svn: 19190

* 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