don't use glibc-specific execinfo.h on uclibc builds

The execinfo.h header is glibc-specific, as is the backtrace function.
Let's skip them for uclibc builds.

Review URL: https://codereview.chromium.org/226623008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262344 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 05a72651b489159eab8ed0f5452e931fd21045a0
3 files changed
tree: c8b9d7badedcd1bd568695cb577124175cff7a40
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/