tree 2cd6eef151ec13cb311c08cabd55251c385348fa
parent 56be8de007dfd65ed5a31c795eb4a08ad765f411
author Alex Stewart <alexs.mac@gmail.com> 1439051551 +0100
committer Alex Stewart <alexs.mac@gmail.com> 1439051551 +0100

Fix bug in gflags' <= 2.1.2 exported CMake configuration.

- gflags <= 2.1.2 has a bug in its exported gflags-config.cmake:
  https://github.com/gflags/gflags/issues/110 whereby it sets
  gflags_LIBRARIES to a non-existent 'gflags' target.
- This causes linker errors if gflags is installed in a non-standard
  location (as otherwise CMake resolves gflags to -lgflags which
  links if gflags is installed somewhere on the current path).
- We now check for this case, and search for the correct gflags imported
  target and update gflags_LIBRARIES to reference it if found, otherwise
  proceed on to the original manual search to try to find gflags.

Change-Id: Iceccc3ee53c7c2010e41cc45255f966e7b13d526